U-539 - 3rd War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed	Date	Arrived	Date	Days at Sea
St. Nazaire	1 May 1944	Flensburg	22 September 1944	145

 

Click the icon to download a KMZ file displaying the U-boat track, significant events and locations for this patrol.  You must have Google Earth loaded on your computer to view this file.  Download Google Earth here

 

Ships Hit
Date	KTB Time	Position	Ship	Tons	Nationality	Convoy
5 Jun 44	20.05	18°27'N, 67°15'W	PILLORY	8,941	Panamanian
11 Jun 44	08.05 - 09.06	12°03'N, 69°21'W	CASANDRA (damaged)	6,692	Netherlander
4 Jul 44	16.31 - 17.06	9°45'N, 79°33'W	KITTANNING (damaged)	119	American
			Total = 14,413
Note:  The positions in the table above and in the Google Earth patrol summary are derived from the KTB and in many cases do not match those set forth in authoritative references such as Jürgen Rohwer, Axis Submarine Successes of World War Two or the Uboat.net website.  The goal here is to present the picture relative to the U-boat and not the absolute position that the ship was attacked or sank.

---

				GEHEIME KOMMANDOSACHE!
			K  r  i  e  g  s  t  a  g  e  b  u  c  h
			of the
			Unterseebootes  "U  539"
				3rd Patrol
				Kommandant:
				Kapitänleutnant Lauterbach-Emden
			Beginning:  22 March 1944
			Ending    :  22 Sept. 1944
			Distribution:
			2 x O.K.M.
			1 x B.d.U. Op
			1 x Kom.Adm. U-Boote
			1 x F.d.U. West
			1 x F.d.U. Ausbildung
			1 x 27. U.-Flottille
			1 x 35. U.-Flottille
				© U-boat Archive 2023 - all rights reserved

Click the flag to view the above page from the original German KTB

	- 1 -
		22.03.44	Lorient	Torpedo offload, Provisions offload, shipyard conference.
		23.03.44		Ammunition offload, cleared the boat.
		24.03.44		Cleared, boat shifted to the shipyard berth - Keroman Wet Bunker 19.    [Keroman 3]
		25.03.44		Began shipyard period.
		11.00		Muster by the Flottillen Chef and awards ceremony.
		28.03.44		Onto the slip, dry-docked.
		17.04.44		Un docked, shifted to berth 19 (Wet Bunker).
		21.04.44		Pier-side trials.
		22.04.44		Fuel oil loading.
		23.04.44		Continued fuel loading, torpedo loading.
		25.04.44
		17.00		Cast off for sea trial.
		18.14		Dived for trim test.
		18.35		Surfaced and made fast Keroman 19.
		26.04.44		Took over the boat and loaded ammunition.
		27.04.44		Stable provisions and lubricating oil loading.
		28.04.44
		08.05		Cast off,  08.21 hours dived, 08.46 hours surfaced.
		09.00		Degaussing, 09.48 hours radio direction finder calibration and shooting the anti-aircraft weapons.  11.10 hours magnetic compass calibration.
		12.03		Boat on the slip, 14.30 hours cast off, 15.02 hours made fast Scorff bunker 4.
		29.04.44		1st training day.
		30.04.44		2nd training day - fresh provisions - oil and water loaded.
		01.05.44		3rd training day and remainder of taking over the boat.
				++++++++++++++++++++++
		01.05.44	Lorient, Scorff bunker	Cast off for 3rd war patrol.
		21.00
		21.37		Trim test ended.
		21.51		Passed the Port Louis barrier.
				Convoy intake by U-Jäger 1405, 1407 and 1416.
		23.18	ENE 2, Sea 1, Cirrus, horizon hazy, Vis. 4000 meters, 1027 mb	Boat is at Point Leben.
				Fkmstr. Franz 10. U-Flottille disembarked.  Released escort.
		23.30		Released from convoy.
		02.05.44
		01.07	BF 5299	Naxos detection, Volume 3, dived.
		02.50		Surfaced.
		03.45	BF 5531	Naxos detection, Volume 2, dived.
			ENE 1, Sea 0-1, cloudless, horizon hazy, Vis. 3000 meters, 1028 mb, bright moon
		05.20	No moon, light marine phosphorescence	Surfaced.
		05.40		Morning twilight.
		05.43		Dived.
		12.00	Lat.:     47°68'N	Surfaced        36.5 nm
			Long.:  04°45'W	Submerged    18.6 nm
				Day's run       55.1 nm
		22.48	Wind 0-1, Sea 0-1, ground fog, Cirrus, Vis. 1500-3000 meters, bright moon	Surfaced.

	Sun and Moon Data 01.05.44
	Sun and Moon Data 02.05.44

	- 2 -
		03.05.44	Inner Bay of Biscay
		00.00	BF 5574
		00.12	SE 0-1, Sea 0-1, ground fog, light Cirrus, bright moon, Vis. 200-1000 meters, 1021 mb	Naxos detection, Volume 2, dived.
		01.40		Surfaced.
		02.10		Dived.
		04.10	BF 5498	Surfaced.
		04.20		Naxos detection, dived.
		04.40		Began deep dive to depth 2A +20 meters.
				Starboard propeller band a bit, no further issues.
		05.25		Deep dive ended.  Proceeded submerged at depth A -40 meters.
		12.00	BF 5723	Surfaced        31 nm
			Lat.:     46°30'N	Submerged    32 nm
			Long.:  06°01'W	Day's run       63 nm
		20.00	BF 5722
		23.01		Surfaced.
		23.10	BF 5727	Naxos detection, dived.
		04.05.44
		00.03	WNW 1, Sea 0-1, Altocumulus, 9/10, haze, Vis. 1500 meters, 1022 mb, bright moon	Surfaced.
		00.50		Naxos detection, Aphrodite launched, dived.
		01.36	BF 5719	Surfaced.
		02.07	BF 5718	Naxos detection, Aphrodite launched without anchor, so it will not  remain in position at the diving location, because the wind speed is at most 3 meters/second.  Dived.
		03.21		Surfaced.
		03.37	BF 5718	Naxos detection, Aphrodite launched without anchor, dived.
		05.00	Wind calm, Swell 0-1, Stratocumulus, 6/10, Vis. 15 nm, 1022 mb, moon	Surfaced.
		05.04	BF 5742	Naxos detection, Aphrodite launched without anchor, dived.
		08.00	BF 5741
		12.00	BF 5741	Surfaced       15.5 nm
			Lat.:     46°09'N	Submerged    29.0 nm
			Long.:  07°00'W	Day's run       44.5 nm
		20.00	BF 4965
		22.46		Surfaced, after the beginning of twilight.
		23.21	BF 4964	Naxos detection, Volume 2-3, dived.
		05.05.44
		00.23	WNW 3, Sea 3, Stratocumulus, overcast, Vis. 1000 meters, 1018 mb, bright moon	Surfaced.
		00.47	BF 4967	Naxos detection, Volume 2, dived.
		01.33		Surfaced.
		01.50	BF 4983	Naxos detection, Volume 2, dived.
		02.52		Surfaced.
		02.55	BF 4983	Naxos detection, Volume 4, dived.
		03.04	WNW 3, Sea 3, Cumulonimbus, 7/10, Vis. 15 nm, 1017 mb, bright moon	3-4 aircraft bombs.  Far off.
		03.46		Surfaced.
		04.53	BF 4984	Naxos detection, Volume 2, dived.
			I remained submerged now because I cannot charge until twilight.  Battery is down to 9000 Ampere hours.  [about 80% capacity]

	Sun and Moon Data 03.05.44
	Sun and Moon Data 04.05.44
	Sun and Moon Data 05.05.44

	- 3 -
		continued
		05.05.44	Inner Bay of Biscay
		12.00	BF 4976	Surfaced        27.5 nm
			Lat.:     45°43'N	Submerged    28.0 nm
			Long.:  08°03'W	Day's run       55.5 nm
		20.00	BF 4978	The transmitting periods for Coastal Circuit Very Long Wavelength are not checked by the Kootwijk transmitter; delays of 45 minutes and Program Time outages occur frequently.  Inconvenient for economical operation, each time you go to reception depth for nothing.
		22.52	Surfaced.
		23.27	BF 4977	Naxos detection, Volume 2, dived.
		06.05.44
		00.30	NW 3, Sea 2-3, Cumulus, 4/10, Vis. 3000 meters, bright moon, 1017 mb	Surfaced.
		00.37	BF 7322	Naxos detection, Volume 3, dived.
		02.10		Surfaced.
		02.30	BF 7321	Naxos detection, Volume 3, dived.
		03.13	NW 3, Sea 3, Cumulus, 4-6/10, Vis. 3000 meters, bright moon, 1018 mb	Surfaced.
		04.30		Difference between dead reckoning and actual position after a navigation fix - 215°T, 22 nm.
		05.34		Morning twilight, dived.
		12.00	BF 7267	Surfaced        35 nm
			Lat.:     45°03'N	Submerged    26 nm
			Long.:  09°28'W	Day's run       61 nm
		20.00	BF 7258
		22.55		Surfaced.
		23.26	BF 7285	Naxos detection, Volume 3, dived.
		07.05.44
		01.00	N 3, Sea 3, Cumulus, 4/10, Vis. 4000 meters, bright moon, 1022 mb	Surfaced.
		01.02	BF 7284	Naxos detection, Volume 2, dived.
		01.47		Surfaced.
		01.48	BF 7284	Naxos detection, Volume 3, dived.
		03.07		Surfaced.
		03.11	BF 7276	Naxos detection, Volume 3, dived.
		03.55	NNE 2-3,Sea 3, Cumulus, 5/10, Vis. 4000 meters, bright moon, 1022 mb	Surfaced.
		05.30		Morning twilight.
		05.46		Dived.
		08.00	BF 7195
		12.00	BF 7194	Surfaced        26.5 nm
			Lat.:     44°51'N	Submerged    26.0 nm
			Long.:  10°37'W	Day's run       52.5 nm
		20.00	BF 7185
		22.48		Surfaced.
		08.05.44	BF 7174
		00.00	ENE 2, Sea 2, Stratocumulus, 8/10, Vis. 4000 meters, bright full moon, 1024 mb
		00.15		Difference between dead reckoning and actual position after a navigation fix - 230°T, 8 nm.
		01.30	BE 9395	Dived.
		03.05		Surfaced.
		05.50	BE 9614	Dived after morning twilight.
			ENE 1-2, Sea 2, Stratocumulus, 7/10, Vis. 4000 meters, bright full moon, 1025 mb
		12.00	BF 9536	Surfaced        71 nm
			Lat.:     44°33'N	Submerged    23 nm
			Long.:  13°03'W	Day's run       94 nm

	Sun and Moon Data 05.05.44
	Sun and Moon Data 06.05.44
	Sun and Moon Data 07.05.44
	Sun and Moon Data 08.05.44

	- 4 -
		continued
		08.05.44	Outer Bay of Biscay	Surfaced.
		23.00	BE 9535
		09.05.44	BE 9529
		00.00
		01.20	E 1, Sea 1, Altocumulus, 7/10, Vis. 15 nm, bright moon, 1025 mb	Difference between dead reckoning and actual position after a navigation fix - 290°T, 17 nm.
		04.00	BE 9437
			E 1, Sea 1, Altocumulus, 8/10, Vis. 3500 meters, bright moon, 1025 mb
		06.00	BE 9452	Dived.
		07.35	BE 9452	Faint diesel sounds, 180 RPM bearing 215°T.
		07.37		"To Action Stations", to periscope depth and came to course 220°.  Tubes 1-6 ready for submerged firing, nothing seen.
		07.53		Sound bearing is lost.
		07.58		"Secure from Action Stations".  Came back to course 260°.
		08.40		Sound bearing comes again in 245°T, shifts slowly to starboard.
		09.06	E 1-2, Sea 2, Swell, Cumulus, 800 meters, 6/10, Vis. 8000-10000 meters, obscured horizon	Surfaced.
				No sighting, however apparently good listening conditions.
		09.10		Dived. Bearing lost again.
		12.00	BE 9451	Surfaced        84 nm
			Lat.:     44°23'N	Submerged     21 nm
			Long.:  15°30'W	Day's run       105 nm
		14.22		Incoming Radio Message 1204/9/34:  New objectives:
				1.)  Hashagen . . . .
				2.)  Niemeyer . . . .
				3.)  Objective and operations area for Lauterbach is EB and the square east therefrom.  Atlantic quadrat chart.
		20.00	BE 9442
		23.04	BE 9418	Surfaced.
		23.15		Incoming Radio Message 2232/9/40:  English units located at 15.20 hours in Anton Lucie 6819, 10.00 hours in BE 8593, both naval squares.
				That is 80 nm away from us.
		10.05.44
		00.00	BE 9441
		01.15	ENE 1-2, Sea 2, Swell, Altostratus, Cirrus, 6-8/10, Vis. up to 10000 meters, 1025 mb	Difference between dead reckoning and actual position after a navigation fix - 290°T, 8 nm.
		03.10		Difference between dead reckoning and actual position after a navigation fix - 180°T, 18 nm.
		04.00	BE 8654
			Vis. improving 3000-4000 meters
		06.32	BE 8676	Dived.
		12.00	BE 8599	Surfaced        68.5 nm
			Lat.:     43°49'N	Submerged     19.5 nm
			Long.:  17°38'W	Day's run        88.0 nm
		16.00	BE 8832
		20.00	BE 8831
		23.12		Surfaced.
		11.05.44	BE 8831

	Sun and Moon Data 08.05.44
	Sun and Moon Data 09.05.44
	Sun and Moon Data 10.05.44

	- 5 -
		continued
		11.05.44	Northeast of the Azores
		00.00	ENE 1, Sea 1, Cumulonimbus, 9/10, Vis. 1000 meters, 1024 mb, hazy horizon
		04.00	BE 8817
			Overcast, Vis. 3000 meters, 1022 mb
		07.03		Dived.
		12.00	BE 8752	Surfaced        64 nm
			Lat.:     43°24'N	Submerged    31 nm
			Long.:  19°47'W	Day's run       95 nm
		14.58		Surfaced to ventilate, check fire the 3.7 cm and twin 2 cm and send passing report.
				3.7 cm:  failure excess grease before the firing pin.  2 cm no failures.
				After correcting the excess grease failure was cleared.
		15.07		Outgoing Radio Message ßß 1507/-/-  on alternate frequency from Norddeich on 24 meters.  Have passed 20°W to the west.    U-539
		15.16		Dived.
		17.10		Incoming Radio Message 1522/11/65:  U-539 has passed 20°W to the west and should switch to Ireland Circuit 12 May at 03.00 hours.  Signal received by Norddeich on 24 meters with Volume 3-4, by Bernau with Volume 2-3.
		20.00	BE 7969
		23.16		Surfaced.
		12.05.44	BE 7969
		00.00	WNW 1, Sea 1, Stratocumulus, overcast, Vis. 5000 meters, 1020 mb
		03.00		Switched to Ireland Circuit.
		04.00	BE 7984
			Vis. improvement by moonrise to 2500-3000 meters, 1019 mb
		07.22		Dived.
		08.00	BE 7977
		12.00	BE 7899	Surfaced        68.2 nm
			Lat.:     42°57'N	Submerged    31.5 nm
			Long.:  22°06'W	Day's run       99.7 nm
		16.00	CF 2111
		20.00	CF 1332
		22.01		Surfaced.
		23.10		Evening twilight.
		13.05.44	CF 1324
		00.00	NE 2, Sea 1, Stratocumulus, 8/10, Vis. 1500 meters, 1019 mb
		04.00	CF 1262	Difference between dead reckoning and actual position after a navigation fix - 90°T, 22 nm.
			E 2-3, Sea 2, Altocumulus, 6/10, Vis. 3500 meters, moon, 1017 mb
		07.33	CF 1264	Dived.
		12.00	CF 1259	Surfaced        76.0 nm
			Lat.:     42°21'N	Submerged    29.0 nm
			Long.:  23°58'W	Day's run      105.0 nm
		20.00	CF 1281
		23.09		Surfaced.

	Sun and Moon Data 11.05.44
	Sun and Moon Data 12.05.44
	Sun and Moon Data 13.05.44

	- 6 -
		14.05.44	Northeast of the Azores
		00.00	CF 1271
			E 4, Sea 4, Cumulonimbus, overcast, rain, Vis. 5000 meters, marine phosphorescence, Summer lightening, 1016 mb
		04.00	CE 3389
			E 3, Sea 3-4, Cumulonimbus, overcast, breaking up, Vis. 1200 meters, marine phosphorescence, 1015 mb
		04.55		Difference between dead reckoning and actual position after a navigation fix - 247°T, 7 nm.
		07.43		Dived.
		12.00	CE 3535	Surfaced        67.5 nm
			Lat.:     41°52'N	Submerged    31.5 nm
			Long.:  26°04'W	Day's run       99.0 nm
		15.45		Faint sound bearing (piston engine) 120 RPM bearing 140°T.  To periscope depth.  "Action Stations", tubes I-VI flooded.  Nothing seen.
		15.51
		16.18	CE 3534	Surfaced, pursued in the direction of the sound bearing.  No sighting.  Came to old course.
			ENE 2, Sea 2, Cumulus, 5/10, Vis. 5-6 nm, 1015 mb
		17.01		Dived, no sound bearing.
		23.00		Surfaced.
		23.20		Difference between dead reckoning and actual position after a navigation fix:  62°T, 12 nm.
		23.23	CE 3551	"Crash dive" before large aircraft bearing 120°T, range 7000-8000 meters, NE course.  Was unnoticed.  Went to depth A meters.
		15.05.44	CE 3543
			ENE 1-2, Sea 2, Cumulus, 6/10, Vis. good, 1016 mb
		00.21		Surfaced.
		04.00	CE 3468
		07.00		Difference between dead reckoning and actual position after a navigation fix:  53°T, 6 nm.
		07.32		Dived.
		12.00	CE 3457	Surfaced        66.5 nm
			Lat.:     41°27'N	Submerged    29.5 nm
			Long.:  27°46'W	Day's run       96.0 nm
		16.07	CE 3449	Surfaced.
			NE 1-2, Sea 2, Cumulus and Cirrus, 5/10, Vis. 8-10 nm, 1016 mb
		16.41		Dived.
		16.05.44
		00.00	CE 2696	Surfaced.
		00.05	ENE 2, Sea 2, Altocumulus, 6/10, Vis. 4000 meters, 1016 mb	Difference between dead reckoning and actual position after a navigation fix:  90°T, 15 nm.
		04.00	CE 2687
			Lightly freshening
		07.47	CE 2915	Dived.
		12.00	CE 2914	Surfaced        66 nm
			Lat.:     40°44'N	Submerged    30 nm
			Long.:  29°22'W	Day's run       96 nm
		16.07	CE 2839	Surfaced.
			NE 1, Sea 1-2, Altocumulus, 8/10, Vis. 6-8 nm, 1018 mb
		16.36		Dived
		17.05.44
		00.03	CE 2841	Surfaced.
			NE 1, Sea 1, few clouds, Vis. 4000 meters, 1020 mb,
		00.10		Difference between dead reckoning and actual position after a navigation fix:  267°T, 32 nm.
		04.00	CE 2758
		07.38		Difference between dead reckoning and actual position after a navigation fix:  8°T, 8 nm.
		08.02	CE 2775	Dived.
		12.00	CE 1999	Surfaced        68 nm
			Lat.:     40°11'N	Submerged    30 nm
			Long.:  31°56'W	Day's run       98 nm

	Sun and Moon Data 14.05.44
	Sun and Moon Data 15.05.44
	Sun and Moon Data 16.05.44
	Sun and Moon Data 17.05.44

	- 7 -
		continued
		17.05.44	North of the Azores
		16.08	CE 4332	Surfaced.
			NNE 1-2, Sea 1-2, few Cumulus and Cirrus, 6/10, Vis. 10 nm, 1024 mb
		17.09	CE 4331	Dived.
		20.00	CE 4326
		18.05.44
		00.03	CE 4384	Surfaced.
		00.10	N 1, Sea 1, few Cumulus, 3/10, Vis. 5 nm, 1025 mb	Difference between dead reckoning and actual position after a navigation fix:  228°T, 14 nm.
		04.00	CE 4291
		08.07	CE 4278	Dived.
		12.00	CE 4276	Surfaced        66 nm
			Lat.:     39°20'N	Submerged    29 nm
			Long.:  34°12'W	Day's run       95 nm
		16.03	CE 4433	Surfaced.
		16.14	N 1, Sea 1, Cumulus, 4/10, Vis. 10 nm, 1027 mb	Difference between dead reckoning and actual position after a navigation fix:  270°T, 4 nm.
		17.03		Dived.
		20.00	CE 4425	After sound bearing to periscope depth.  Swede "STEGEHOLM" passed at 800 meters.  Course 180°, 14 knots.
		22.52		Surfaced.
		19.05.44
		00.00	S 1, Sea 1, Cumulus, 3/10, Vis. 5 nm, hazy horizon, 1027 mb
		00.05		Difference between dead reckoning and actual position after a navigation fix:  90°T, 9 nm.
		04.00	CD 6669
			S 1, Sea 0-1, Vis. 1000 meters, hazy, 1028 mb, marine phosphorescence
		08.27	CD 6685	Dived.
		12.00	CD 6687	Surfaced        83.5 nm
			Lat.:     38°27'N	Submerged    27.0 nm
			Long.:  36°15'W	Day's run      110.5 nm
		16.06	CD 6913	Surfaced.
			W 1, Sea 1, Cirrus-Altocumulus-Cumulus, 7/10, Vis. 7 nm, 1029 mb
		18.18	CD 6836	Dived.
		23.08		Surfaced.  Fu.M.O. "Gema" (anode voltage for the control section) out of service.  Cannot be repaired by on board means.
		23.56	CD 6837	Detection on "Fliege", Volume 2 from sector port aft, because no surface radar carrier was seen, presume aircraft, dived.
		23.55		Difference between dead reckoning and actual position after a navigation fix:  270°T, 12 nm.
		20.05.44
		00.43		After not sighting anything with a sound bearing, "To Action Stations" (ticking in 180°T) and surfaced.
		00.54	CD 6853
		01.12	SW 2, Sea 1, Cumulus, 4/10, hazy, Vis. 2500 meters, 1030 mb	No sighting.  "Secured from Action Stations".
		02.53	CD 6852	Detection with Fliege, Volume 2-3 in 285°T.
		03.02		Dived.  Undefinable clicks and ticking on the starboard side.  Because of the possibility of a surface ship "To Action Stations" and surfaced.  In the direction of the sound bearing pursued briefly.  No surface vessel, came to old course.
		03.30
		04.01	CD 6844	Dived to listen.  No sound bearing.
		04.21		Surfaced.
		04.28		"Secured from Action Stations".

	Sun and Moon Data 17.05.44
	Sun and Moon Data 18.05.44
	Sun and Moon Data 19.05.44
	Sun and Moon Data 20.05.44

	- 8 -
		continued
		20.05.44	Northwest of the Azores
		08.33	CD 6785	Surfaced.
			SW 2, Sea 2, Cumulus, 8/10, hazy horizon, Vis. 2500 meters, 1030 mb
		12.00	CD 6784	Surfaced        89.5 nm
			Lat.:     37°39'N	Submerged    26.0 nm
			Long.:  38°38'W	Day's run     115.5 nm
		16.04	CD 6784	Surfaced.
		18.34	W 2, Sea 1, few Cumulus, 3/10, Vis. 8 nm, 1030 mb	Incoming Radio Message:  1234/20/146:  To Lauterbach:  On 21 May at 08.00 hours switch to America 1 Circuit.
		19.06	CD 8333	Dived.
		21.05.44
		00.00	CD 8335	Surfaced.
		00.09	W 2, Sea 1, 7/10, Vis. 4 nm, 1021 mb	Detection with "Fliege" from 120°T, Volume 2.
				Dived, starboard negative buoyancy tank fails.
		01.10		Surfaced.
		01.13		Detection with Fliege from 190°T, Volume 3, dived.
		02.21	CD 8337	Surfaced.
		02.23		Detection with Fliege from 250°T, Volume 3.
		02.24		Dived.
		03.31		Surfaced.
		04.00	CD 8329
		07.25	Cloudy, breaking up	Main ballast tank 8 flooded to repack a propeller shaft stern tube packing.
		08.00	CD 8347	Switched to America I Circuit.
		08.30		Difference between dead reckoning and actual position after a navigation fix:  208°T, 6 nm.
		08.45	CD 8293	Dived.
		12.00	CD 8295	Surfaced        65.5 nm
			Lat.:     36°47'N	Submerged    34.0 nm
			Long.:  40°28'W	Day's run       99.5 nm
		17.05	CD 8297	Surfaced.
			W 2, Sea 2, Cumulus, 4/10, Vis. 8 nm, 1032 mb
		20.00	CD 8524	Dived.
		22.05.44
		00.34	CD 8516	Surfaced.
		00.40	SSW 2-3, Sea 2-3, Cumulus, 2/10, Vis. 4 nm, 1031 mb	Difference between dead reckoning and actual position after a navigation fix:  26°T, 9 nm.
		04.00	CD 8517
			SSW 2-3, Cumulus, 4/10, Vis. 4000 meters, 1030 mb
		08.00	CD 8455
			S 3, Sea 3, Cumulus, 5/10, Vis. 2000 meters, 1029 mb
		09.00	CD 8458	Dived.
		12.00	CD 8481	Surfaced        86.5 nm
			Lat.:     35°59'N	Submerged    25.0 nm
			Long.:  42°06'W	Day's run     111.5 nm
		15.15	CD 8473	Surfaced.
			SSW 3, Sea 3, Altostratus, Cirrus, 7/10, Vis. 8 nm, 1029 mb
		15.34		Dived.
		19.57	CD 8475	Surfaced.
		20.00	Increasing cloudiness	Difference between dead reckoning and actual position after a navigation fix:  257°T, 14 nm.
		20.31	CD 7696	Dived.
		23.58	CD 7698	Surfaced.
		23.05.44	SSW 3, Sea 2-3, Altocirrus, 8/10, Vis. 5 nm, 1028 mb
		04.00	CD 7924
		09.00	CD 7669	Dived.
			Freshening

	Sun and Moon Data 20.05.44
	Sun and Moon Data 21.05.44
	Sun and Moon Data 22.05.44
	Sun and Moon Data 23.05.44

	- 9 -
		continued
		23.05.44	Southwest of the Azores
		12.00	CD 7868	Surfaced        71.5 nm
			Lat.:     35°09'N	Submerged    26.5 nm
			Long.:  43°58'W	Day's run       98.0 nm
		13.12	CD 7892	Very faint sound bearing in 190°T:  "To Action Stations" and went to periscope depth.  Shift of the bearing was slight, however to the west.  Because nothing was seen in the periscope, surfaced and pursued with a slight lead angle and GF.  Also nothing is distinguished in the extended periscope.
		13.24 13.25	SSW 3-4, Sea 3-4, Altostratus, Cirrus, 6/10, Vis, 8 nm, 1027 mb
		14.37	CD 7883	Dived to listen.  Sound bearing in 150°T quickly grew fainter and disappeared.
		14.50
		15.15	CD 7886	Surfaced.
		20.00	DF 1115
			Clouds breaking up, 1025 mb
		21.15	DF 1115	Difference between dead reckoning and actual position after a navigation fix:  178°T, 10.5 nm.
		23.16	BE 3366	Dived.
		24.05.44
		00.31	SSW 3, Sea 3, Altostratus, Cirrus, 4/10, Vis. 4 nm, 1026 mb	Surfaced.
		04.00	DE 3383
			Overcast, Vis. 3500 meters, Cumulus
		09.22	DE 3614	Dived.
			Unchanged, 1025 mb
		12.00	DE 3614	Surfaced        132 nm
			Lat.:     34°16'N	Submerged    11.5 nm
			Long.:  46°14'W	Day's run     143.5 nm
		16.00	DE 3539
		18.00	SSW 3, Sea 3, Altostratus, 3/10, Vis. 8 nm, 1025 mb	Surfaced.
		19.25		Incoming Radio Message 1638/24/296:  Contents:  Position of neutral ships on the Philadelphia Route on 24 May at 12.00 hours.
				After we passed this route 12 hours ago.
		20.00	DE 3564
		21.35	DE 3559	Difference between dead reckoning and actual position after a navigation fix:  180°T, 12 nm.
		25.05.44	DE 3579
		00.00	SSW 3, Sea 2, Altostratus, Cirrus, 3/10, Vis. 5 nm, 1025 mb
		04.00	DE 3738
			Altocumulus, Fractonimbus, overcast, Vis. 3000 meters
		08.00	DE 3755
			SW 2, Sea 1, Nimbostratus - Cirrus, 8/10, Vis. 3000 meters, 1025 mb
		10.17	DE 3772	Dived.
		12.00	DE 3772	Surfaced      113.5 nm
			Lat.:     32°22'N	Submerged    14.0 nm
			Long.:  48°30'W	Day's run     127.5 nm
		14.02	DE 3371	Surfaced.
			SSW 1, Sea 1, Nimbostratus, 8/10, Vis. 6 nm, 1026 mb
		14.33	DE 3774	Dived.
		17.08	WSW 1, Sea 1, Cumulus, 4/10, Vis. 6 nm, 1026 mb	Surfaced.
		20.00	DE 5331

	Sun and Moon Data 23.05.44
	Sun and Moon Data 24.05.44
	Sun and Moon Data 25.05.44

	- 10 -
		26.05.44	East of Bermuda Islands
		00.00	DE 5319
		00.35	Increasing cloudiness	Difference between dead reckoning and actual position after a navigation fix:  101°T, 22 nm.
		02.49		Incoming Radio Message:  0126/26/212:  1.)  Tillessen, etc. . . . 2.)  Tillessen, Lauterbach on 26 May 08.00 hours switch to America 2.
		04.00	DE 5348
			Nearly overcast, Vis. 3000 meters
		08.00	DE 5298	Switched to America 2.
		09.35	Overcast, hazy, Vis. 1000 meters	Morning twilight.
		10.02	DE 5523	Dived.
		12.00	DE 5525	Surfaced       139.0 nm
			Lat.:     31°06'N	Submerged     13.5 nm
			Long.:  50°28'W	Day's run      152.5 nm
		14.14	SW 2, Sea 1-2, Altostratus, Cirrus, Vis. 7 nm, 6/10, 1026 mb	Surfaced.
		16.00	DE 5519
		20.00	DE 5468
		27.05.44	DE 5485
		00.00	SW 1, Sea 1, Cirrus, Altostratus, Cumulus, 7/10, Vis. 6 nm, 1025 mb
		00.35	DE 5484	Difference between dead reckoning and actual position after a navigation fix:  281°T, 9 nm.
		04.00	DE 4933
			SW 1, Sea 0-1, Cumulus, 6/10, Vis. 1000 meters
		08.00	DE 4952
		09.45	WNW 1, Sea 1, Altostratus, Nimbus, 9/10, Vis. 4 nm, 1023 mb	Morning twilight.
		10.35	DE 4949	Dived.
		12.00	DE 4948	Surfaced       158.0 nm
			Lat.:     29°45'N	Submerged      7.0 nm
			Long.:  53°15'W	Day's run      165.0 nm
		14.09	DE 4972	Surfaced.
			S 1, Sea 1, Cirrus, Cirrus-Altostratus, Cumulonimbus, 8/10, Vis. 4 nm, 1026 mb
		16.00	DE 4896
		20.00	DE 7725
			SE shifting, showers, Swell
		28.05.44
		00.00	DE 7295
		04.00	DE 7197	1 hour AK cruise and indexing.
		08.00	DE 7419
		10.22	DE 7444	Dived.
		12.00	DE 4948	Surfaced      168.0 nm
			Lat.:     28°02'N	Submerged         7 nm
			Long.:  55°49'W	Day's run       175 nm
		14.12	DE 7447	Surfaced.
		16.00	DD 9692
			SE 1-2, Sea 1, Cirrus, Cumulus, 6/10, Vis. 9 nm, 1026 mb
		18.34		Difference between dead reckoning and actual position after a navigation fix:  22°T, 24 nm.
		20.00	DD 9683
			Breaking up, 2/10, Cumulus, Vis. 10 nm, 1025 mb
		29.05.44	DD 9912
			SE 2, Sea 1, Cumulus, 7/10, Vis. 10 nm, 1026 mb

	Sun and Moon Data 26.05.44
	Sun and Moon Data 27.05.44
	Sun and Moon Data 28.05.44
	Sun and Moon Data 29.05.44

	- 11 -
		continued
		29.05.44	Southeast of Bermuda Islands
		04.00	DD 9865
			Rain showers, Vis. 4000 meters
		08.00	DD 9885
		11.48		Dived.
		12.00	DP 1325	Surfaced        174 nm
			Lat.:     36°32'N	Submerged        5 nm
			Long.:  58°08'W	Day's run       179 nm
		12.24	SE 3, Sea 2-3, Cumulus, 6/10, Vis. 8 nm, 1023 mb	Surfaced.
		16.00	DP 1345
		20.00	DP 1269
		20.19		Difference between dead reckoning and actual position after a navigation fix:  40°T, 9.5 nm.
		30.05.44	DP 1287
		00.00	DE 2, Sea 2, Altostratus, Cumulus, overcast, Vis. 6 nm, 1022 mb
		04.00	DP 1439
		08.00	DP 1458
		11.02	DP 1478
		12.00	DP 1478	Surfaced        168 nm
			Lat.:     24°56'N	Submerged      2.5 nm
			Long.:  60°16'W	Day's run      170.5 nm
		16.06	DP 1711	Surfaced.
			SE 3, Sea 3, Altostratus, few Cumulus, overcast, Vis. 6 nm, 1021 mb
		16.58		Dived
		21.06	DO 3935	Surfaced.
		21.30	DO 3937	Dived.
		31.05.44
		00.00	DO 3937
			SE 3-4, Sea 3, Altostratus, Cumulus, overcast, Showers, Vis. 3500 meters, 1020 mb
		11.16		Surfaced.
		04.00	DO 3954
			Freshening, 1019 mb
		08.00	DO 3896
			Rain, Vis. deteriorating to 1000 meters, abating, 1018 mb
		10.45		Morning twilight.
		11.05	DO 6231	Dived.
		12.00	DO 6223	Surfaced        79.5 nm
			Lat.:     23°51'N	Submerged     24.5 nm
			Long.:  61°35'W	Day's run      104.0 nm
		16.02	DO 6226	Surfaced.
			SE 2-3, Sea 3, Altostratus, overcast, Vis. 5 nm, 1019 mb
		16.31	DO 6225	Dived.
		17.54		Surfaced.
		18.25	DO 6228	Dived.
		23.05	DO 6251	Surfaced.
			1017 mb
		23.38	DO 6243	Dived.
		01.06.44	SE 1, Sea 2, tropical rain, overcast, Vis. 2000 meters, 1017 mb
		01.33		Surfaced.

	Sun and Moon Data 29.05.44
	Sun and Moon Data 30.05.44
	Sun and Moon Data 31.05.44
	Sun and Moon Data 01.06.44

	- 12 -
		continued
		01.06.44	North of Puerto Rico
		04.00	DO 6169
		08.00	DO 6188
			Freshening, 1016 mb
		11.04	DO 6415	Dived.
		12.00	1015 mb	Surfaced        77.5 nm
			Lat.:     22°54'N	Submerged    23.5 nm
			Long.:  62°55'W	Day's run     101.0 nm
		16.18	DO 6417	Surfaced.
			SSE 1, Sea 3, Altostratus, Fractonimbus, 9/10, Vis. 5-6 nm, 1017 mb
		16.42		Dived.
		17.54	DO 6441	Surfaced.
		18.20		Difference between dead reckoning and actual position after a navigation fix:  200°T, 30 nm.
		18.22	DO 5698	Dived.
		02.06.44	DO 5923
		01.01	SSE 2, Sea 2, squalls, showers, Cumulus, 9/10, Vis. changing, 1016 mb	Surfaced.
		02.00		Difference between dead reckoning and actual position after a navigation fix:  204°T, 8 nm.
		03.30		Incoming Radio Message 1938/1/301:  Lauterbach:  According to a B-Dienst report a U-boat was attacked on 1 June 16.43 hours in square DN 9556.
		04.00	DO 5946
			In fact I dived at 16.42 hours, however the reported position was different by 300 nm.  Therefore, another boat or false report.
		08.00	DO 5896
			Rain, Vis. down to 2000 meters, 1015 mb
		11.17	DO 8226	Dived.
			Tropical lightening, 1013 mb
		12.00	DO 8226	Surfaced        81.0 nm
			Lat.:     21°10'N	Submerged    22.5 nm
			Long.:  64°23'W	Day's run     103.5 nm
		16.04	DO 8225	Surfaced to check navigation,
		16.14	S 1, Sea, Cumulus, 6/10, Vis. 7 nm, 1018 mb	2-engined flying boat "Mariner" bearing 340°T in parallel flight range 5000 meters.  Anti-aircraft weapons manned and turned away.  Aircraft flew on its old course.  Crash dived.
		16.15
		16.39		Detonation, unexplained.  Did not sound like an aircraft bomb.
		03.06.44	DO 8258
		01.45	NE 1, Sea 1, overcast, rain, Vis. 1500 meters, 1016 mb	Surfaced.
		02.19	DO 8257	Detection, Volume 2, from 90°T, dived.
		03.16		Surfaced.
		03.47	DO 8281	Detection, Volume 2, from 10°T, dived.
		06.03	DO 8281	Surfaced.
			ESE 2, Sea 1, Cumulus, 9/10, Vis. 2000 meters, showers, 1016 mb
		08.24	DO 8512	Detection, Volume 2-3, from 90°T, dived.
		10.00	DO 8511	Surfaced.
		10.46		Dived.
		12.00	DO 8346	Surfaced      40.5 nm
			Lat.:     20°12'N	Submerged   36.0 nm
			Long.:  65°00'W	Day's run     76.5 nm
		12.52		Radio Message:  1607/2/303:  To Lauterbach.  As operations area occupy square EB and area south therefrom.  Focal point off naval square 23 in large square EB.  Free to extend attack area to the east.

	Sun and Moon Data 01.06.44
	Sun and Moon Data 02.06.44
	Sun and Moon Data 03.06.44

	- 13 -
		continued
		03.06.44	North of Puerto Rico
			I had already intended to go through the Mona Passage, then to go Colon via the route Mona Passage-Curacao-Colon
		16.00	DO 8438
		22.54	DO 8453	Surfaced, to clarify a not identified sound bearing, saw nothing despite the extended periscope.
			SE 1-2, Sea 2, overcast, Vis. 8 nm, 1015 mb
		23.00		Dived.
		04.06.44
		00.00	DO 8456
		01.33		Surfaced.
		01.37	DO 8456	2 detections, Volume 2+3, from 70° + 310°T, dived.
		02.34	DO 8455	Surfaced.
		03.09		Detection, Volume 2, from 300°T, dived.
		04.32	DO 8457	Surfaced.
			E 0-1m Sea 0-1, overcast, Vis. 4000 meters, 1016 mb
		05.00		Detection, Volume 2, from 70°T, dived.
		05.46	DO 8449	Surfaced.
		06.31	DO 8473	Detection, Volume 2, from 170°T, dived.
		08.14	DO 8472	Surfaced.
		08.28		Detection, Volume 2, from 90°T, dived.
		08.58		Surfaced.
		09.08		Detection, Volume 2-3, turned away, anti-aircraft weapons ready.  Remained on the surface.  Detection did not reoccur.
		09.27	DO 8455	Difference between dead reckoning and actual position after a navigation fix:  237°T, 48 nm.  Detection, Volume 1, was quickly louder from 270°T, dived.
		12.00	DO 7944	Surfaced        30.0 nm
			Lat.:     19°31'N	Submerged    27.5 nm
			Long.:  65°57'W	Day's run       57.5 nm
		18.04	DO 7868	Surfaced to check navigation.
		18.12	ESE 1, Sea 1, cloudy, Vis. 6 nm, 1015 mb	Dived.
		05.06.44
		00.00	DO 7891
		01.37		Surfaced.
		02.20		Lights bearing 190°T, thought to be lights on land.
		02.45		Difference between dead reckoning and actual position after a navigation fix:  60°T, 20 nm.  By this we are now approximately off Arecibo.  Dived.
		03.00	DP 7947
		04.32		Surfaced.
		05.11		Running bearing on the "Punta Borinquen" Lighthouse.
				Detection, Volume 2, from direction of the lighthouse, or aircraft base "Borinquen Field", turned away.
		05.59	DO 7895	Because there was still a 2nd detection coming from sea, dived.
		06.50		Surfaced.
		06.56	DO 7894	Detection from 30°T, Volume 3, dived.
		09.04	E 1, Sea 1, Cumulus, 4/10, Vis. 5000 meters, 1016 mb	Surfaced.
				Land detection, turned towards it target angle 0°, nothing more determined.
		09.50	DO 7886	Dived.
			Intention:  Pass between "Dedecheco" and "Punta Jiguero" submerged, charge in the radar shadow of the Islands, proceed submerged through the rest of the Passage.
		12.00	DO 7888	Surfaced       40.0 nm
			Lat.:     18°41'N	Submerged    37.5 nm
			Long.:  67°10'W	Day's run       77.5 nm

	Sun and Moon Data 03.06.44
	Sun and Moon Data 04.06.44
	Sun and Moon Data 05.06.44

	- 14 -
		continued
		05.06.44	Mona Passage
		17.33	ED 1224	After sound bearing to periscope depth.
		17.39		"To Action Stations".  Steamer, at the moment still poorly distinguished, because he is positioned in the sun sector.  Later identified as Standard type "C3", estimated course 20°, speed by plotting 12 knots, range at target angle 50° about 3500-4000 meters.  I turned to attack course and have tubes I, III, IV made ready.  Steamer makes 80 RPM.  Protected by a "Mariner".  Depth settings 6 meters.  By now the steamer had target angle 80-85°.  Estimated range 2500 meters.
		17.45		Steamer zigzagged.  Under the assumption, since it was difficult to see, that he had turned towards me I turned with to port.  Unfortunately he had zigzagged to 70° and disappeared on course parallel with the coast, probably for "St. Juan".  The listening conditions were not especially good.  The horizon and the periscope were inadequate due to strong direct sunlight because everything you could make out was very indistinct.
		18.16
			Because apparently traffic here runs close under land, I also went closer to the coast..
		19.35		Mastheads and smoke clouds
		19.49		Sound bearings, diesel 100 RPM.
		19.51		"To Action Stations".  3000 GRT freighter, loaded, protected by 2 PC-boats with target angle 30° bearing 345°T.  Course 210°.  Came to course 280°.  I intend to knock off with a 2-Fat 2-fan.  Enemy values by estimation, and speed by letting pass by.  Screen behaves notably harmless and lazy corresponding to the sunny weather.
		20.05	ED 1224	2-Fat 2-fan on steamer:
				Enemy speed 11 knots, target angle 100° (left), length 110 meters, depth 6 meters, initial run left long 3000 meters.  Shooting angle 1, aim point after mast.  After 2 minutes  55 seconds observed hit between superstructure and the after mast.  High explosion column.  Steamer turned to starboard after the hit took on a list and settled noticeably deeper.  After 5 minutes 20 seconds 2nd Fat hit below the stern, which already lay quite high out.  After the detonation cloud dispersed nothing more is seen of the steamer.  During the brief spectacle the two patrol vessels watched from about 1000 meters distance from the steamer, now they went to the sinking location and fished out.  I have a TV ready for the bigger one, but it's not valuable enough.
		20.11
		20.42		A more valuable victim, a tanker coming straight for me with his bridge and superstructure over the horizon, exchanges Morse traffic with the patrol vessels, then reverses course and disappears.
				Came to course 200°.  Pity!
		21.17		"Secured from Action Stations!"
		21.50		Now the competition appears, the Air Force. I still look for how and where, especially what types fly here.  "Mariner" and "Mustang".

Sun and Moon Data 05.06.44

	- 15 -
		continued
		05.06.44	Mona Passage
				[there is an illegible few sentences here - the text is obscured]
		06.06.44
		00.00	ED 1219	[Another few illegible few sentences here]
		*****	[insert from below goes here]	*****
		06.48	E 0-1, Sea 0-1, 2/10, Vis. 4000 meters, full moon, 1015 mb	[Another few illegible few sentences here - concerning sound bearings and radar detections.  The boat was proceeding with anti-aircraft weapons manned]
		07.39		"Aircraft"  A flying boat approaching from astern, was taken under fire at 1500 meters.  Aircraft flew out of the moon dark sector and turned on a brilliant bluish searchlight at about 1000 meters.  Inaccurate bomb throw.  3 bombs miss astern.  Aircraft circled the boat at 2000-3000 meters.  3.7 cm failure:  cartridge burner, cartridge could not be extracted.  After pre-flooding main ballast tank 8 and firing continuously "Crash dive".  Went to depth A +20 meters.  No bombs.
		07.41	ED 1244
		07.54
		08.11  )		Each 1 bomb.  Probably he threw the rest at us because he saw that we submerged firing, however, he thought about it quite late.
		08.13 )
			At 06.58 hours the facts of the enemy landing in the Seine Bay were transmitted to us by Leadership.  Invasion!
		12.00	ED 1166	Surfaced        10.5 nm
			Lat.:     18°12'N	Submerged    45.0 nm
			Long.:  67°31'W	Day's run       55.5 nm
		12.25		Incoming Radio Message 1113/6/340:  According to a B-Diesnt report a U-boat was attacked at 07.30 hours naval square ED 1244
		13.05		At periscope depth a "Mariner" flies in large circles.
		14.02		After a sound bearing went to periscope depth.  Tanker at 2500 meters, target angle 130°.  Listening conditions and visibility are very bad.  A pity! but too late.
		20.00	ED 1195	Today I have to spend 2 hours charging in a hurry, otherwise there will be nothing left for submerged cruise.
		*****
		06.06.44		Surfaced.
		03.41	ED 1218	Naxos detection, Volume 5 from ahead.  Crash dive.

	Sun and Moon Data 05.06.44
	Sun and Moon Data 06.06.44

	- 16 -
		07.06.44	Mona Passage
		00.00	ED 1431
		02.53		Surfaced, anti-aircraft weapons ready.  3.7 cm remains out of service.
		02.54	ED 1435	Continuous Naxos detection with Volume 3, 4 + 5.
			ED 1517	Detection was always taken astern, no approach.  Boat steered with general course southeast.
			ESE 2, Sea 2, 3/10, Vis. 4000 meters, hazy horizon, moon, 1018 mb
		04.38		No further detections.
		09.18	ED 1735	Naxos detection from astern, Volume 2, dived.
		10.44		Surfaced.
		11.10		Dived.
		12.00	ED 1736	Surfaced        70.5 nm
			Lat.:     16°43'N	Submerged    33.0 nm
			Long.:  67°39'W	Day's run      103.5 nm
		20.00	ED 1762
		08.06.44
		02.43	ED 1764	Surfaced.
			E 2-3, Sea 2, 4/10, Vis. 4000 meters, 1015 mb
		04.00	ED 1784
		04.43	Freshening	Difference between dead reckoning and actual position after a navigation fix:  110°T, 29 nm.
		06.13	ED 4138	Detection from 10°T, dived.
		06.53		Surfaced.
		06.57		Detection from 190°T, dived.
		08.00	ED 4162	Surfaced.
			SE 1-2, Sea 1
		10.30	ED 4183	Detection from 180°T.
		10.31		Dived.
		12.00	ED 4183	Surfaced         53 nm
			Lat.:     16°08'N	Submerged     35 nm
			Long.:  68°03'W	Day's run         88 nm
		20.00	ED 4187
		09.06.44
		02.21	ED 4187	Surfaced.
			ESE 2, Sea 2, Cumulus, 4/10, Vis. 4000 meters, 1017 mb
		04.00	ED 4417
		04.53	EC 6659	Detection (Naxos Volume 2) from 245°T.
		04.54		Dived.
		06.12		Surfaced.
		11.23	EC 6923	Dived.
		12.00	EC 6923	Surfaced         63.0 nm
			Lat.:     13°58'N	Submerged     17.5 nm
			Long.:  68°54'W	Day's run        80.5 nm
		20.00	EC 6928	An unidentifiable propeller sound, at periscope depth nothing seen.
		10.06.44
		01.57	EC 6955	Surfaced.
			E 3, Sea 2-3, Cumulus, 4/10, Vis. 3000 meters, 1016 mb
		04.00	EC 6984
		04.40	Rain showers	Difference between dead reckoning and actual position after a navigation fix:  290°T, 12 nm.
		09.37	EC 9372	Naxos detection (Volume 1-2) from 170°T.
		11.00	EC 9372	Piston engine sound bearing from 195°T. Shifted slowly to the east, growing louder, at periscope depth nothing seen.  Torpedo armament secured.
		12.00	EC 9373	Surfaced         60 nm
			Lat.:     12°32'N	Submerged     18 nm
			Long.:  69°09'W	Day's run        78 nm

	Sun and Moon Data 07.06.44
	Sun and Moon Data 08.06.44
	Sun and Moon Data 09.06.44
	Sun and Moon Data 10.06.44

	- 17 -
		continued
		10.06.44	North of Curacao
		13.30		Lost sound bearing in 130°T.
		15.04	EC 9372	Piston engine sound bearing in 255°T.  90 RPM.  Shifted to 340°T, no sighting.
		16.10		Lost sound bearing.
		20.00	EC 2374
		21.25		Diesel engine sound bearing in 15°T.
		21.30		To Action Stations.  Turned to attack course.  Large tanker in ballast about 9000 GRT.  Target angle on sighting right 30°.  Estimated range 4000 meters.  Tanker makes 150 RPM.
				Modern large tanker, aft and forward each 1 cannon, anti-aircraft platforms on the bridge and forward edge of the smokestack, 6 lifeboats.
				General course 150°, speed estimated 12 knots.
		21.39		2 each Fat 2 fan, T 3a from tubes I-IV.  Enemy values:  Target angle green 104°, target speed 12 knots, lead angle green 22°, depth 5 meters, length 150 meters, range 2000 meters, legs right long, initial run 3000 meters, shooting angle 12.5°.
		21.46		Enemy made slight zigzags and also low speed.
				T V from tube II.  Enemy values:
				Target angle green 130°, target speed 12 knots, switch N S, range 2500 meters, shooting angle 40°.
				After 4 minutes 26 seconds first Fat hit on tanker.  Tanker zigzags strongly.  Very loud bright bang with dull detonation.
				After 11 minutes 49 seconds T V hit on tanker, thereupon the engine stopped and the tanker yawed back and forth.  After 23minutes 11 seconds detonation, probably the second torpedo of the 2-fan, which still arrived because the tanker stopped.
		22.02	EC 9296	Sinking sounds.  The diesel started briefly, however stopped again immediately.  The stern lay noticeably deeper and in the starboard side of the hull a large different colored spot is seen at the level of the after mast.
		22.12		Always still perfect sinking sounds were heard, then the diesel suddenly started again and ran at 150 RPM zigzagging strongly on general course 150°.
		22.15
				That this rather big tanker did not react differently to the hits is, in my opinion, because it proceeds in ballast and with the benefit of his 9000 GRT can withstand it.
		22.40		Tanker is out of listening range in 180°T.
			Because a strong northwest current is expected here and tomorrow by day with this current between the coast and Aruba I want to let myself drift past off the Roadstead of Oranjestad and San Nicolas Bay, I came to course 240° and headed for the southern tip of Aruba "Cape Colorado".
		11.06.44
		02.02	EC 9295	Surfaced.
		02.25	E 3, Sea 2-3, Cumulus, 4/10, Vis. 3000 meters, 1016 mb	Took running bearings on the Seroe Colorado Lighthouse on course 180°.  The illumination of lights on land is irregular.  Noticeable to the left of the beacon we took bearing on is a tall, brightly lit pole, chimney, or the like.  From the temporary, brief illumination on the coast, we can conclude that there is also night traffic in this area.

	Sun and Moon Data 10.06.44
	Sun and Moon Data 11.06.44

	- 18 -
		continued
		11.06.44	Southwest of Aruba
		05.00	EC 9531	Dived.
		06.09		Diesel sounds 150 RPM bearing 290°T.
		06.13		In the periscope a dark shadow was recognized.  "To Action Stations".  Prepared to surface.  Tube VI ready for surface firing.
				Enemy values:  speed by estimating and table 12 knots, target angle 90°, range 2000 meters.
		06.22		Surfaced.
		06.24		After checking the values fired the torpedo.
				Switch WS, shot angle 209°, target speed 12 knots, target angle green 90°, aim point stern.  Depth 7 meters.
				Small tanker about 4000 GRT, loaded.  Apparently un protected.
		06.29		After the shot dived to listen.  Torpedo is easily heard.
		06.38		After 14-10 minutes bright bang with dull detonation, no sinking sounds, same RPM.
		06.39	EC 9534	Surfaced.
			E 3, Sea 2-3, 4/10, Vis. 3000-4000 meters, 1016 mb, moon	Maneuvered ahead for a new attack.  From the moon lee side, therefore unfortunately the maneuver ahead was hindered by the bright part of the horizon.  Tanker steered 100° with slight zigzags, 12-14 knots.
		07.23		Angled in and turned to attack course.
				2 each T 1 Fat 1 fan from tubes I and IV, set values:  target speed 14 knots, target angle green 50°, range 1500 meters, enemy length 120 meters, depth 3 meters.
				Boat slowed, I showed him a small silhouette.  Tanker still had a sharp target angle.  "New target angle 25°".
				Fat settings:  loops right short, initial run 1500 meters.
		07.31	EC 9536	Fan fired.  Shortly after the shot was taken the tanker turned to starboard and made strong evasive maneuvers, I turned to port and ran briefly out of the range of the Fat area.
				In the meantime I reloaded and made the T in tube V ready.
		07.38		Tube V fire.  Speed 12 knots, target angle right 110°, depth 4 meters, switch WS, range 2500 meters.
		07.49		Hit after 11-15 minutes.  Bright bang with dull detonation.  Strong concussion felt in the boat.  Tanker lay after the hit with a starboard list and down by the bow.  Smoked heavily.
		07.51		2nd detonation.  Thereafter the tanker only makes low RPM.  The tanker and the torpedo were hear in the Balkon listening device on the surface.  Pursued.
				I now went behind the stern of the steamer on his port side, so that I am approached in his smoke cloud from astern.  In so doing it is easily distinguished, that he is down by the bow with a list and to some extent the seas go over his deck.  He has slowed noticeably.

Sun and Moon Data 11.06.44

	- 19 -
		continued
		11.06.44	West of Curacao
		08.00	EC 9536	The next approach I intend to carry out bombardment with the 2 cm and 3.7 cm cannons.
		08.05	E 2, Sea 2, 5/10, Vis. 4000 meters, 1016 mb, moon
				Several small shadows were distinguished in 50°T.  So I went back around to the starboard side of the steamer.  There was no fire from the steamer.  Speed changes and zigzags.  Using artillery fire I made the next approach from aft coming up as a running fight to port.  Several hits were observed in the hull and superstructure of the tanker.  3.7 cm is only ready for semi-automatic fire and had at least one cartridge burner every 5 shots.
		08.36	EC 9617	T III single shot.  Enemy speed 14 knots, bow right target angle 90°, range 1200 meters, depth 3 meters, loops right long, initial run 1500 meters from tube III, shot angle 337°.
				Shortly after the shot a new strong course change of the tanker to avoid the T III.  Assumption:  torpedo warning gear.
				Thereafter parallel course and continued to fire at the tanker.  Ahead, high over the horizon the mountains of Curacao come in sight.  The shadows were no longer seen.  Aircraft, radar or escort had not appeared during this last unfortunately failed approach.  Because I had to abandon my plan at Aruba, in the meantime my 3.7 cm was completely out of service, I came to course 290° and ran off. On the 600-meter wavelength roaring loud distress call of the tanker 2 times calling "Attacked by sub".
		09.06
		09.10
		09.46		After removing the breech end of the 3.7 cm dived.
		10.12	EC 9614	Sound bearing piston 90 RPM in 80°T.  Growing louder.  To Action Stations and periscope depth.  Shadows were slowly larger and clearer.  Accepted course 280°, came to attack course 0°.  Intended a single T V from tube II.
				Enemy values:  target speed 12, target angle 100°, lead angle red 24°, depth 5 meters, switch WS, shot angle 7°, range 2500 meters.
		10.55		Torpedo fired at medium size vessel.
				Torpedo and piston shift continually in a bearing together.  Bright pistol bang with detonation in 315°T.  Hit was not observed in the periscope depth. Running time 13 minutes 38 seconds.  RPM of the vessel remained the same.  Surfacing was no longer possible due to the developing dawn.
		11.08
		12.05		New sound bearing in 250°T.  Small patrol vessel, piston, 70 RPM.  I went to depth A +20 meters.  Far behind the patrol vessel there was a 6000 ton tanker.
		12.00	EC 9514	Surfaced        67 nm
			Lat.:     12°07'N	Submerged    30 nm
			Long.:  69°20'W	Day's run       97 nm
		14.43	EC 9536	Diesel sound bearing.  To periscope depth.  2 PC boats range 1500 to 2000 meters, course east, 150 RPM.

Sun and Moon Data 11.06.44

	- 20 -
		continued
		11.06.44	Curacao - Aruba	The sound bearings no longer break off.  In most cases, they are smaller patrol vessels or PC-boats, which usually go back and forth in twos.  Aircraft are also encountered now.  Twice I watch a Mitchell flying in circles for quite a while.
				Between 18.00 and 20.00 hours it happens to be calm.
		20.00	EC 9535
		20.08		Sound bearing in 245°T.  At periscope depth a small convoy consisting of 2 PC-boats and 3 tankers each of 6000 GRT, of these 2 older and 1 newer with apparently an Fu.M.O. antenna on the signal bridge.  Course 100°.  Proceeding in ballast at 10 knots.  Range 3000 meters.
		20.45		Behind it appears a 4000 ton loaded tanker.  The same type, as our victim from last night.  Modern vessel, diesel 150 RPM, range 4500 meters.  Tanker had large pennant set on the signal line
		21.45		At periscope depth after diesel sound bearing.
				Patrol vessel, which turned towards me in target angle 0°.
		22.00		Patrol vessel increases RPM.  Now it will probably pound us right away.  I am at depth A -35 meters when the patrol vessel overruns the boat and throws 2 depth charges, no failures, they lay above the boat and far to one side.  I can only take the boat deeper with one motor because the starboard propeller beats hard.  The boat turned slowly to port.  Now a 2nd sound bearing runs in, 132 RPM so two patrol vessels.  Boat was overrun, 1 depth charge.  Strong stratification of water makes it difficult to go deeper, but is favorable from the standpoint of being heard, since the two patrol vessels seem to work only with a simple listening device.  Asdic impulses or explosive locating were not heard.
		22.01
		22.16
		22.21		A new overrunning of the boat with 2 depth charges.  Depth A, no failures only the whitewash comes down from the ceiling.
		23.04		The last 2 were the best placed.  At depth A -30 meters moved off on course 45°.  No further sound bearings from these "enemy brothers".
		12.06.44
		00.00	EC 9534
		02.34	EC 9297	Surfaced.  Naxos detection Volume 2, growing louder from the S-sector, dived.
			E 3, Sea 2, 8/10, Vis. 2000 meters, 1015 mb
		04.23	EC 9294	Surfaced.
		04.26		After Naxos detection dived.
		05.30		Surfaced.
		05.33		After Naxos detection dived.
		06.56	EC 9291	Surfaced.
		06.58		Naxos detection dived.
		09.34	EC 9267	Surfaced.  Zigzags around general course 30°, charged.
		10.05	E 5, Sea 4, overcast, rain, Vis. changing, 1014 mb	Naxos detection, Volume 2, from 250°T.  Showed the stern.
		10.07		Naxos detection, Volume 2, dived.
		12.00	EC 9267	Surfaced         7 nm
			Lat.:     12°37'N	Submerged    41 nm
			Long.:  69°36'W	Day's run       48 nm

	Sun and Moon Data 11.06.44
	Sun and Moon Data 12.06.44

	- 21 -
		continued
		12.06.44	North of Aruba
		20.00	EC 9264
		13.06.44
		01.52	EC 9237	Surfaced.
		02.24	E 4-5, Sea 4, 6/10, Vis. 3000 meters, 1017 mb	Incoming Radio Message 2250/12/394:  The following Radio Message with Serial No. 297/395 of 12 June may only be decoded by Kommandanten:  Lauterbach etc.
		04.30	EC 6894	Came to westerly course, to head for the coastal route off "Point Gallinas".
		05.58		Incoming Radio Message 2312/12/395:  To Lauterbach, etc.  To be decoded by Kommandanten of named boats:  Move out of the operations area so that fuel wise Bergen can be reached if ordered to do so on return transit. If Bergen is not reachable report position and fuel within the next 5 days.
		08.00	EC 6877
			Abating, 1018 mb
		11.27	EC 9125	Dived.
		12.00	EC 9125	Surfaced        98 nm
			Lat.:     13°04'N	Submerged    22 nm
			Long.:  70°42'W	Day's run     120 nm
		20.00	EC 9124
		14.06.44
		01.53	EC 9118	Surfaced.
		01.56	E 3, Sea 2-3, Cumulus, 2/10, Vis. 2500 meters, 1016 mb	Naxos detection, Volume 2, from 50°T, dived.
		02.34		Surfaced.
		03.15		Difference between dead reckoning and actual position after a navigation fix:  12°T, 21 nm.
		04.00	EC 8363
		06.38	EC 8334	Naxos detection.  Volume 2, from 80°T, dived.
		07.40		Surfaced.
		11.25		Difference between dead reckoning and actual position after a navigation fix:  305°T, 5 nm.
		11.31	EC 8342	Dived.
		12.00	EC 8341	Surfaced        64 nm
			Lat.:     12°48'N	Submerged    25 nm
			Long.:  72°01'W	Day's run       89 nm
		20.00	EC 8266
		23.00		Engine sounds 96 RPM, bearing 220°T, faint, nothing seen.  Sound bearing lost in 230°T.
		23.22
		15.06.44
		01.54	EC 8268	Surfaced.
		02.51	E 3, Sea 2-3, few clouds, Vis. 3000 meters, 1019 mb, Summer lightening	In the Naxos broadcast or voice reception, under the assumption that is is not working, dived.
		04.06	EC 8283	Surfaced.
		05.45	EC 8278	Naxos detection.  Volume 2, growing louder from 330°T, dived.
		06.33		Surfaced.
		06.36		New Naxos detection, Volume 2, from 270°T, dived.
		07.18		Surfaced.  Naxos detection, Volume 2, from 180°T.
		07.21		Dived.
		08.53	EC 8278	Surfaced.
		10.50	Increasing cloudiness	Difference between dead reckoning and actual position after a navigation fix:  307°T, 8 nm.
		11.52		Dived.
		12.00	EC 8425	Surfaced        51 nm
			Lat.:     12°09'N	Submerged    29 nm
			Long.:  73°16'W	Day's run       80 nm
		12.45		Sound bearing, probably piston bearing 320°T.  To Action Stations.  To periscope depth.

	Sun and Moon Data 12.06.44
	Sun and Moon Data 13.06.44
	Sun and Moon Data 14.06.44
	Sun and Moon Data 15.06.44

	- 22 -
		continued
		15.06.44	Southern Caribbean	Nothing seen of the vessel.  By the shift seemed to be distant.  So the flying boat, type Mariner, which circles at about 8000 meters, is probably escort for the sound source.  Sound bearing is very faint.
		13.05		Sound bearing lost in 325°T.
		13.47		Again faint in 0°T, 102 RPM.
		14.16		Sound bearing lost in 20°T.
		20.00	EC 8427
		16.06.44
		02.00	EC 8442	Surfaced.
			SW 1, Sea 1, 8/10, Vis. 2000 meters,, 1015 mb, Summer lightening
		07.00	EC 7682	Naxos detection, Volume 3, from 60°T, dived.
		08.06	EC 7684	Surfaced.
		08.08	Freshening	Naxos detection.  Volume 2-3, dived.
		09.11		Surfaced.
		11.37	EC 7678	Naxos detection from 220°T, Volume 3, dived.
		12.00	EC 7678	Surfaced        66 nm
			Lat.:     11°25'N	Submerged    28 nm
			Long.:  74°35'W	Day's run       94 nm
		12.15		Sound bearing, piston 84 RPM, in 290°T, to periscope depth and Action Stations.  Came to starboard  to course 0°.  It is an 8000 GRT tanker in ballast, estimated speed 11 knots, course 90°, range 3000-4000 meters.  Ran towards at GF to decrease abeam distance.  Steamer zigzagged away and ran off on course 60-70°.  Stern target angle and range increasing quickly.  Secured from Action Stations.  Strong water stratification and drift from Magdalena Current.
		12.40
		12.51
		20.00	EC 7911
		17.06.44
		02.16	EC 7836	Surfaced.
			WSW 1-2, Sea 1, 7/10, Vis. 4000 meters, 1016 mb, Summer lightening	2 shadows bearing 0°T, probably patrol vessels.  Range about 4000 meters, continued on.
		02.37	EC 7835	Detection, Volume 3 from ahead, dived.
		03.33		Surfaced.
				Land bearing from "Bocas de Ceniza" and "Morro Hermosa"  Peacetime identifiers, turned away, to not have to be in the vicinity of the coast to download torpedoes from the over deck.
		06.08		With the lighthouses still easily visible, a beacon somewhat higher, slowly from west to east, and then, after a time, back again. This may be an aircraft with set lights.  Now three lights are recognized, their distance from one another is increasing and becomes clearly recognizable.  Approaching from 140°T.
		06.23
		06.28		Crash dive.
		06.38		Sound bearing, pistons 84 RPM in 10°T.
		06.45		In 25°T.
		07.00		In 45°T.  Assumption:  Aircraft flies with set lights at the meeting point to escort a vessel  coming from Colon.  Then continued to the east.  See also yesterday's sighting of the tanker.
		07.11		Last sound bearing 55°T.

	Sun and Moon Data 15.06.44
	Sun and Moon Data 16.06.44
	Sun and Moon Data 17.06.44

	- 23 -
		continued
		17.06.44	Off Magdalen River
		09.08	EC 7823	Surfaced.
		11.43	Unchanged	Dived.
		12.00	EC 7812	Surfaced        52 nm
			Lat.:     11°24'N	Submerged    27 nm
			Long.:  75°35'W	Day's run       79 nm
		21.19	EC 7499	Sound bearing, unidentifiable sound.  At periscope depth diesel 108 RPM and a small patrol vessel.  Without smokestack with high aft set bridge.  Course 240°, range 1000-1500 meters.  Because of the calm weather immediately went deep again.  Slight course change.  Last sound bearing in 320°T.
		21.35
		18.06.44
		02.20	EC 7497	Surfaced.  Set off on course 310° withdrawing to download on 19 or 20 June.
			NNE 1-2, Sea 1, 5/10, Vis. 3000 meters, 1016 mb, Summer lightening
		04.00	EC 7482
		08.00	EB 9639	Prepared to download.
		12.00	EB 9623	Surfaced        77 nm
			Lat.:     12°12'N	Submerged    22 nm
			Long.:  76°54'W	Day's run       99 nm
			NE 2, Sea 1, Cumulus, 4/10, Vis. 5000 meters, 1017 mb, Summer lightening
		12.00		Difference between dead reckoning and actual position after a navigation fix:  145°T, 7 nm.
		12.04	EB 9626	Dived.
		20.00	EB 9628
		19.06.44
		02.29	EB 9651	Surfaced.
		02.45	ENE 1-2, Sea 1, 5/10, Vis. 3000 meters, 1017 mb, Summer lightening	Two T 1 Fat 1 from over deck canisters downloaded into the bow torpedo room.
		05.30		Downloading ended.
		07.35	EB 9592	Dived, to fill the over deck canisters.
		08.08	Increasing cloudiness	Surfaced.  Tubes are full and were closed. Difference between dead reckoning and actual position after a navigation fix:  303°T, 34 nm.
		12.00	EB 9825	Surfaced        69 nm
			Lat.:     11°37'N	Submerged    19 nm
			Long.:  78°26'W	Day's run       88 nm
		20.00	EB 9498
		20.06.44
		00.53 - 01.00		Sound bearing without sighting in 70°T, later as a diesel 96 RPM until surfacing in 140°T.
		02.25	EB 9731	Surfaced.
			SW 1, Sea 1, 7/10, Cumulonimbus, Vis. 2000 meters, 1016 mb, Summer lightening	Set off with the intention of coming from the north on an intercept course for coastal or inner-Caribbean traffic east of "Cape Manzanillo".
		04.00	EB 9761
		08.00	EB 9797
		12.00	EL 3127	Difference between dead reckoning and actual position after a navigation fix:  247°T, 20 nm.
			Lat.:     10°09'N
			Long.:  79°20'W	Surfaced        83 nm
				Submerged    22 nm
				Day's run     105 nm
		12.17		Dived.
		16.00		At periscope depth om 5000-7000 meters small airships, altitude 200 meters, course east bearing 160°.
		18.00		"Mariner" lower edge of the clouds course SW in 120°T, range 5000 meters.
		20.00	EL 2365	So day air.  No sound bearings.  The listening conditions are not good despite depth changes.

	Sun and Moon Data 17.06.44
	Sun and Moon Data 18.06.44
	Sun and Moon Data 19.06.44
	Sun and Moon Data 20.06.44

	- 24 -
		21.06.44	North of Panama
		02.47	EL 3144	Surfaced, Glow of a beacon below the horizon, the identifier matches "Isla Grande", by this the current has shifted us to the east.  Large running bearing offset on the beacon.
			NW 1, Sea 1, Cumulus, 5/10, Vis. 1500 meters, hazy horizon, Summer lightening, 1016 mb
		03.32		Searchlight on land shines upwards vertically.  Dived,  No sound bearings.
		04.08	EL 3157	Surfaced.
		05.40	EL 3142	Detection with Naxos, Volume 2 from 270°T.
		05.50		Sound bearing from 20°T.  Diesel 144 RPM by plotting the vessel steered SW course.  Last sound bearing in 260°T.  Probably steamers make the jump between Point Columbia to Colon and vice versa without air and are only being picked up near the coast by area air escort.
		07.05
		07.10		Surfaced.
		08.16	EL 2339	Naxos detection, Volume 2 from 260°T, dived.
		09.35	Strong haze, Vis. deteriorated	Surfaced.
		10.24	EL 2334	Dived before a not clearly distinguished light above the horizon.
		11.14		Surfaced.
		12.00	EL 2322	Surfaced        51.0 nm
			Lat.:     10°24'N	Submerged    31.5 nm
			Long.:  79°43'W	Day's run       82.5 nm
			Because with this weather large amounts of driftwood are observed here under the coast, experience has shown this is a sign that current is coming from the east, I intend to run from the west here to catch traffic running close under the coast with the current.  Will haul out [far from land] to the west, to observe simultaneously, whether traffic, protection and radar occurs in these squares.
		12.09		Dived.
		20.00	EL 2313
		22.06.44	EL 2312
		02.42	NW 0-1, Sea 0, 6/10, Vis. 2000 meters, changing horizon, hazy, Summer lightening, 1015 mb	Surfaced.
		02.47		Naxos detection from 90°T, turned to show the stern.
		02.47		Dived.
		03.18	EL 2311	Surfaced.
		03.43		Detection growing louder from 90°T, dived.
		04.18		Surfaced.
		04.36		Detection from 90°T, dived.
		05.05	EL 2233	Surfaced.
		05.30		Detection from 90°T, dived.
		06.49		Surfaced.
		06.55		Detection from 90°T, dived.
		07.52	EL 2232	Surfaced.
		08.14		Detection, dived.
		08.42		Surfaced.
		08.44		Detection dived.
		10.10	EL 2231	Surfaced.
			Unchanged
		12.00	EL 2322	Surfaced        41.5 nm
			Lat.:     10°26'N	Submerged    35.0 nm
			Long.:  80°44'W	Day's run       76.5 nm
		12.10		Dived.
		20.00	EL 2215
		23.06.44
		02.40	EL 2217	Surfaced.
			Wind calm, Swell, 7/10, Vis. 2000 meters, hazy, 1016 mb

	Sun and Moon Data 21.06.44
	Sun and Moon Data 22.06.44
	Sun and Moon Data 23.06.44

	- 25 -
		continued
		23.06.44	North of Panama
		03.15		Incoming Radio Message 1216/22/388:  . . . . Lauterbach, as soon as noticed, report situation.
		04.00	EL 2165
		04.15	SE 1-2, light Swell, 4/10, Vis. 2000 meters, haze, 1013 mb	Ran on SE course to the coast.
		07.39		Light on the horizon, shifts out quickly and after 2 min has shifted 40° to 80°T.
		07.41	EL 2513	Dived.
		09.07	EL 2524	Surfaced ran parallel to the coast, I want go get closer.
		11.38		Dived after taking a bearing from "Point Tore".
		12.00	EL 2531	Surfaced        80 nm
			Lat.:     09°21'N	Submerged    23 nm
			Long.:  80°13'W	Day's run      103 nm
				Land bearings through the periscope.
		20.00	EL 2532	By land bearings I determine that the expected current from the east no longer runs.
				Bad luck!  Well! surfacing will show it.
		24.06.44
		02.58	EL 2611	Surfaced.
			NNE 0-1, Sea 1, hazy horizon, 5/10, Vis. 2000 meters, Summer lightening, 1015 mb	After surfacing detection.  Volume 2-3, in addition, several searchlights lit up on land and search.
		03.01		Dived.
		04.07	EL 2377	Surfaced.
		04.12		After the detection was observed for 5 minutes, dived.
		05.54	EL 2296	Surfaced, moved off.  After surfacing detection, Volume 1.  Avoided on the surface, launched Aphrodite.  Detection quickly grew louder, dived.
		06.30
		08.37	EL 2292	Surfaced.
		09.04	NE 2-3, Sea 2, overcast, rain squalls, Vis. 1000 meters, Summer lightening, 1013 mb	Shifting light at the under edge of the clouds, dived.
		10.04		Surfaced.
		12.00	EL 2261	Surfaced        40 nm
			Lat.:     10°10'N	Submerged    35 nm
			Long.:  80°21'W	Day's run       75 nm        Dived.
		20.10	EL 2239	Sound bearing, broad maximum, diesel 138 RPM.  At periscope depth an entire horde of 12 small PC-boats distinguished, that in groups of three vessels in line abreast and southerly course are distinguished only just above the horizon.
		20.34		Lost sound bearing and soon thereafter out of sight.
				What were they looking for in this mass procession?  I do not really expect I have been discovered.  Unfortunately, no details about formation, possibly towed device, etc. were recognized.
		25.06.44
		00.28	EL 2236	Sound bearing.  To Action Stations, diesel 150 RPM.  On going higher, the sound room reported a very fast increase in Volume up to 5.  The bearing shifted very quickly.  I took the boat deeper.
		00.53		Apparently our propellers beat too loudly.  The patrol vessel, which can be heard easily with with the naked ear, had stopped.  When the vessel stopped I was just at depth A -50 meters, to look for the source of the noise.  I drew the boat deeper again slowly with one motor.  I stopped the motor.  After about 2 minutes the diesel started up again and the sounds were fainter.  Sound bearing was no longer heard, after this it momentarily grew louder again between 320° and 340°T.
		01.03
		01.46
		03.43	EL 2236	Surfaced.
		03.45		After detection Volume 2 from the forward sector, dived.

	Sun and Moon Data 23.06.44
	Sun and Moon Data 24.06.44
	Sun and Moon Data 25.06.44

	- 26 -
		continued
		25.06.44	North of Panama
		03.55		Undefined sound.
		04.04		No longer heard.
		05.27	EL 2235	Surfaced.
		05.31	NNE 2, Sea 1, nearly cloudless, Vis. 2000 meters, Summer lightening, 1014 mb	After a detection grew louder from 190°T, dived.
		06.36		New attempt.  Detection from 50°T, Volume 1-2, dived.
		06.37		Dived.
		09.27	EL 2231	Surfaced.
		09.50		Incoming Radio Message 0107/24/303:  Repeated Radio Message, Tillessen, Lauterbach, . . . . as soon as noticed, report situation.
		10.09	EB 8889	Detection from 0°T, growing louder, at Volume 2 dived.
		10.55		Sounds bearing 355°T.
		11.40 - 12.30		Diesel bearing 65°T, slowly shifted to 85°T and disappeared.
		12.00	EB 8888	Surfaced         8 nm
			Lat.:     10°32'N	Submerged    33 nm
			Long.:  80°35'W	Day's run       41 nm
			Now, because here off the harbor very active radar operations have been determined, I intend to advance and slowly stalk my way to the coast on the route from Cape Manzanillo to Baranquilla - via square AL 31.
		20.00	EB 8887
		26.06.44
		02.50	EB 8875	Surfaced.
			NE 2, Sea 1, overcast, rain, showers, Summer lightening, Vis. 2000 meters, 1014 mb
		04.00	ES 8848
		04.45		Incoming Radio Message 1926/23/400:  Simmermacher, Lauterbach . . . immediately report, if you received either Officer-Only 297, or 395 of 12 June.
		08.00	EB 8822
			NE 3, Sea 3, 2/10, Vis. 4000 meters, 1014 mb	Difference between dead reckoning and actual position after a navigation fix:  145°T, 7 nm.
		12.00	EB 8612
			Lat.:     11°23'N	Surfaced        95 nm
			Long.:  80°00'W	Submerged     23 nm
		20.00	EB 8921	Day's run      118 nm
		27.06.44
		02.50	EB 8922	Surfaced.
		03.00	NE 3, Sea 3, Vis. 2500 meters, Cumulus, 4/10, 1013 mb	Difference between dead reckoning and actual position after a navigation fix:  221°T, 4 nm.
		04.00	EB 8933
		08.00	Unchanged    EB 9742
		12.00	EB 9796	Surfaced        85 nm
			Lat.:     10°26'N	Submerged     23 nm
			Long.:  78°24'W	Day's run      108 nm
		12.04		Dived.
		20.00	EB 9877
		21.55		Went to periscope depth to get a sound bearing.
		21.59		PC-boat bearing 225°T, range 4000 meters, target angle 0°.
		22.11		Slowly went deeper, because the target angle was always still 0° and already considerably larger.  Too small, not valuable and also wood construction.  Passed by us quite close on NE course.
		22.30
		22.44		No further sound bearings.
		28.06.44
		02.54	EL 3214	Surfaced.
		03.20	NE 3, Sea 2, Vis. 2000 meters, Cumulus, 2/10, Summer lightening, 1016 mb	Difference between dead reckoning and actual position after a navigation fix:  12°T, 12 nm.
				Moved back and forth in position athwart enemy course 70°.
		04.36	EL 3217	Dived to listen.

	Sun and Moon Data 25.06.44
	Sun and Moon Data 26.06.44
	Sun and Moon Data 27.06.44
	Sun and Moon Data 28.06.44

	- 27 -
		continued
		28.06.44	North of Panama
		05.18		Surfaced.
		07.13	EL 3247	Dived to listen.
		08.05	Showers, 1012 mb	Surfaced.
		10.00	EL 3164	Dived to listen.
		10.23	E 2, Sea 2, 3/10, Vis. 3000 meters, 1012 mb	Surfaced.
		11.57		Dived.
		12.00	EL 3154	Surfaced        71 nm
			Lat.:     10°02'N	Submerged    23 nm
			Long.:  78°56'W	Day's run       94 nm
		14.40	EL 3154	Sound bearing, to periscope depth.  EMPIRE Class about 6000 GRT, course 250°, target angle 100°, it is too late to shoot with an Ato, range 1200-1500 meters.  He slips by carefree, very bad sound conditions.  No air and sea, speed 10 knots, piston 66 RPM.  Irredeemably past.
		15.02		PC-boat, course 250°, speed 11-12 knots, 132 RPM, by sound bearings poorly distinguished in the haze at about 4000 meters in 340°T, so escorted.
		16.43	EL 3147	Last sound bearing of the PC-boat in 265°T.
				Hourly at periscope depth.
		19.18		Masts, target angle 0-5° bearing 260°T, to Action Stations.  Torpedo armament is ready.  Tanker in ballast, old type, size 6000 GRT, appearance similar to "LARISTAN".   As escort 2 PC-boats, move to and fro excitedly.  In the listening gear only the PC-boats are heard 132 RPM.  Textbook attack went smoothly.  At first I tried to reach shooting position on the port side, then went across the bow to the starboard side then ran off for a stern shot on course 150°.  Because I do not want my periscope to betray me due the bad steering with the Sea State, I ran off for a time and then went to periscope depth again when the tanker should be in target angle 70°.  The patrol craft sound bearing showed it was already ahead, and on my starboard side.  The tanker had target angle 80°, enemy speed 9 knots, range 900 meters.  In an all around sweep I see a PC-boat with bow sea and in target angle 0° towards me 500 meters away.  Went quickly to depth A meters.  Was overrun, no depth charges.  Such a mess, so probably not noticed.  A bad day today, but otherwise this area seems to be good.
		20.13
		20.20
		20.43		Lost sound bearing in 50°T.
		29.06.44
		02.57	EL 2369	Surfaced.
		03.00	NE 3, Sea 2, 2/10, Vis. 2500 meters, hazy, 1013 mb	Difference between dead reckoning and actual position after a navigation fix:  170°T, 10 nm.
		04.32	EL 3181	Naxos detection from 260°T, growing louder, dived.
		05.39		Surfaced.
		08.00	EL 3164
		10.00		Incoming Radio Message 2141/28/361:  Serial No. 134 and 388 of 22 June have the following contents:  Lauterbach, . . . . immediately report situation.
				It hasn't been that long.
		11.50		Difference between dead reckoning and actual position after a navigation fix:  145°T, 4 nm.
		12.00	EL 3148	Surfaced        85 nm
			Lat.:     09°57'N	Submerged    23 nm
			Long.:  79°05'W	Day's run     108 nm
		12.03		Dived.
				Hourly at periscope depth and took all around sweeps.  Visibility is bad, because of the bright sun and hazy horizon and the periscope is frequently fogged up,

	Sun and Moon Data 28.06.44
	Sun and Moon Data 29.06.44

	- 28 -
		continued
		29.06.44	North of Panama	not more than 4 nm.
		14.05		Blimp bearing 140°T, course north, altitude 200 meters, 4000-5000 meters away, morning reconnaissance.  Was unnoticed.
		17.45		Piston sound bearing, 66 RPM, in 160°T.  Nothing seen.  Must be too far away because also the bearing only shifts slowly.
		18.23		New piston in 215°T, 78 RPM.  Closed, also nothing seen.
		18.43		In 207°T a vessel shadow recognized in the haze.  To Action Stations and closed on suspected enemy course 70° at HF and GF, Liberty, EC 2, size 7000 GRT, speed 12 knots, zigzags around 40°, target angle 30°, range 6000 meters, American, unescorted.  Had zigzagged away at range 4000 meters, for a day Ato, also a fan, range is too great, because avoiding quickly is too easy.
		18.53
		19.05	EL 3147
		19.16		No sound bearings, even though range is about 5000 meters, however and we are turned exactly towards the stern.  Steamer drove very irregular zigzags to both sides.
		19.48		Out of sight.
		30.06.44
		02.54	EL 2394	Surfaced.
		03.00	NE 2, Sea 2, 2/10, Vis. 3000 meters, Summer lightening, 1014 mb	Difference between dead reckoning and actual position after a navigation fix:  43°T, 14 nm.
		04.19		Dived to listen.
		05.42		Surfaced.
		08.13		Due to bad visibility dived to listen.
		09.20	EL 3153	Surfaced.
			NE 4, Sea 3, overcast, rain showers, Vis. very bad, 1018 mb
		12.00	EL 3143	Surfaced        62 nm
			Lat.:     09°59'N	Submerged    23 nm
			Long.:  78°59'W	Day's run       85 nm
		12.08		Dived.
		13.03		Undefined sounds in 275°T, nothing seen.
		13.37		In 285°T, now only heard faintly.  I do not know what it might have been.  It did not sound like propellers.
		14.10		Blimp bearing 165°T, altitude 200-300 meters, range 5000 meters, target angle 40°, course 340°.  Was unnoticed.
				Hourly at periscope depth, very bad listening conditions.  I did not understand the the Radio message situation report from Tillessen completely, which spoke of very good listening conditions.  Set off from the coast, yes, however not here at this area.
		20.55	EL 3147	Faint diesel bearing 290°T, 96 RPM, nothing seen.
		21.05		Last very faint bearing in 300°T.
		21.46		Sound bearing in 340°T, diesel 96 RPM, nothing seen.  Sound bearing lost in 35°T.
		22.16
		23.30		At periscope depth a small convoy seen poorly in the haze bearing 320°T, course 250°, range 4000-5000 meters, low speed, estimated 6 knots.  2 PC-boats, one ocean-going tug type "NAVAJO", one river excavator or lifting ship and a special workshop or accommodation ship in tow, no sound bearings, despite subsequent attempts at various depths.
		01.07.44
		02.40	EL 3147	Surfaced.
		03.00	NE 1, Sea 1, Cumulus, 8/10, Vis. 2000-3000 meters, 1016 mb	Difference between dead reckoning and actual position after a navigation fix:  45°T, 11 nm.

	Sun and Moon Data 29.06.44
	Sun and Moon Data 30.06.44
	Sun and Moon Data 01.07.44

	- 29 -
		continued
		01.07.44	North of Panama
		04.07	EL 3153	Dived to listen.
		06.07		Surfaced.
		09.37	EL 3165	Dived.
		10.02	NW 1, Sea 1, 6/10, rain, Summer lightening, Vis. up to 5 nm, 1014 mb	Surfaced.
		12.00	EL 3148	Surfaced        61 nm
			Lat.:     09°52'N	Submerged    23 nm
			Long.:  79°00'W	Day's run       84 nm
		12.02		Dived.
				Hourly at periscope depth.
		16.00	EL 3146	Nothing seen or heard.
		20.00	EL 3143
		02.07.44
		01.40		Sound bearing, unidentified in 260°T.  Prepared to surface.  Surfacing delayed by the failure of the Naxos system.
		02.35		Diesel sound bearing in 310°T, shifts via N-sector sometimes audible at Volume 5, to 10°T.
		02.55
		03.40	EL 3151	Naxos system in operation again, surfaced.
			Wind calm, light Swell, 8/10, Vis. 1000-1500 meters, 1014 mb	Pursued at 2 x GF and AK.  Speed measurement system only resisters 15.5 knots.
		04.46		Dived to listen.
		04.50		Sound bearing in 65°T, very faint.
		05.02		Surfaced, pursued.
		06.35	EL 3132	Dived: nothing more heard.
		06.58		Surfaced.  Came about to my old square.
		07.15		Difference between dead reckoning and actual position after a navigation fix:  207°T, 9 nm.
		08.00	EL 3161
			E 1, Sea 0, 7/10, Vis. 2000 meters, 1013 mb
		09.33		Dived.
		10.41		Surfaced.
		11.57		Dived.
		12.00	EL 3149	Surfaced        68.5 nm
			Lat.:     09°59'N	Submerged    29.0 nm
			Long.:  79°04'W	Day's run       97.5 nm
		16.00	EL 3148	Hourly at periscope depth.  Nothing seen or heard.  I was
		20.00	EL 3148	Tomorrow I will be positioned closer to "Cape Manzanillo".
		03.07.44
		02.37	EL 3149	Surfaced.
		02.50	NE 3, Sea 2, 5/10, Vis. 1500 meters, 1014 mb	Difference between dead reckoning and actual position after a navigation fix:  265°T, 10 nm.
				Proceeded on search courses through the western part of EL 31.
		04.56		Dived to listen.
		06.03		Surfaced.
		07.55	EL 2393	Dived.
		10.04	NE 1, Sea 1, 7/10, Vis. 3000-4000 meters, 1014 mb	Surfaced.
		10.25		Running bearing on "Isla Grande" in 290°T.
		11.41		Dived for detection, Borkum, Volume 1, probably a land station.
		12.00	EL 2392	Surfaced       70.0 nm
			Lat.:     09°50'N	Submerged    29.5 nm
			Long.:  79°27'W	Day's run       99.5 nm
				Hourly at periscope depth, because the listening conditions are very bad again.  Unfortunately the visibility is comparable to the listening conditions.

	Sun and Moon Data 01.07.44
	Sun and Moon Data 02.07.44
	Sun and Moon Data 03.07.44

	- 30 -
		continued
		03.07.44	North of Panama
		14.19		After diesel sound bearing 180 RPM, to periscope depth, shadow of a small PC-boat distinguished poorly bearing 300°T, bow left.  Estimated range 3000-4000 meters.
		14.27		Change of speed from GHG observation to 168 RPM.
		14.36		Disappeared in the haze.  Lost from the gear.
		15.02		At periscope depth a patrol vessel, target angle 20°, zigzagging, according to the GHG piston 78 RPM, escort type, 2 low smokestacks, possible RAVEN Class, passed on SW course in 220°T.  Listening conditions are very bad.
		15.37
		16.00	EL 2391
		20.00	EL 2383
		04.07.44
		02.43	EL 2391	Surfaced.  "Isla Grande" astern.  Moved off to charge.
			NE 3, Sea 3, 8/10, Vis. 2500 meters, 1016 mb
		05.16	EL 2366	Dived to listen.
		06.30		Surfaced,
			I want to be at the area once more, today for the last time, because now fuel-wise, but especially because of provisions I must think about return transit.  If not today, then I may still find the torpedoes a target in the Mona Passage.
		08.40		Land bearing from "Isla Grande".  Closed the coast on course 230°.
		10.43	EL 2391	Naxos detection from 200°T, Volume 1, diced.  Possibly a land station, because inexact bearing from "Portobelo" where is it suspected that patrol vessels are stationed.
		12.00	EL 2391	Surfaced        65 nm
			Lat.:     09°51'N	Submerged    26 nm
			Long.:  79°32'W	Day's run       91 nm
				Hourly at periscope depth.
		14.15		Pistons 78 RPM bearing 140-160°T, momentarily heard at changing Volume, nothing seen.  Possibly the patrol vessel from yesterday again, which also disappeared on a SW course.  Possibly stationary sea escort or intake of vessels or escort to the limit of the 200-meter line.  Last bearing 170°T.
		14.40
		15.45		At periscope depth.
		15.57	EL 2394	Faint sounds bearing 265°T, in the assumption that it may be a vessel on an easterly course came to course 330° and LF.  Diesel with 96 RPM.  Vessel shadow in 300°T, bow right, still not exactly distinguished.
		16.05
		16.13		Came to attack course for enemy course 70°.  Because at estimated target angle 40° passing distance was too great ran to meet at GF.
		16.18
				Tanker, modern new construction, American, type "ANDALUSIA", armed forward light cannon, aft 10.5 cm, on the bridge and on the sft superstructure each 2 2-pounder on each side.  Had long flag signal set.  Range 4000 meters, zigzagged lightly.
		16.20		I intend to shoot a 2-fan from tubes I and III.  Tanker had zigzagged towards us.  Now had target angle right 70°.
		16.30		Zigzagged to 70°, with that became bow right target angle 90°.
		16.31		"Fan fire!"

	Sun and Moon Data 03.07.44
	Sun and Moon Data 04.07.44

	- 31 -
		continued
		04.07.44	North of Panama	Set values were:  target speed (attained by plotting) 13 knots, target angle bow right 108°, range 1500 meters, depth 4 meters, torpedo speed 40 knots.  After the shot normal descent [to compensate for the weight of the] torpedo however due to possible air escort went to depth 30 meters.
		[initial run 150? - probably a typo for 15 = 1500 meters]		Own course 350°, torpedo course 29.5° and 25.5°, shooting angle 21.5°, set loops right long initial run 1500 meters.
		16.32		After 1 minute 48 seconds first detonation, hit starboard aftership.  Steamer turns with a strong list to port, RPM falls.  On the tanker there is great confusion, the anti-aircraft weapons are directed outward, both cannons manned.  After an all around sweep no aircraft notes.  He shoots at the location of the torpedo ejection with the bow cannon.  Tanker lies strongly down by the stern , had stopped engines. I let him coast, move over to the other side and order the settings for tube IV for a coup de grâce.  Steamer proceeds in ballast, hopefully the last Fat 1 is enough and I will not need to sacrifice my T III too.  In 30°T from a report by the GHG three is still a large tanker type MOBILOIL, though not so exactly distinguished.  Quite far away.  Detonation of the 2nd torpedo: very bright pistol bang with subsequent detonation.  Thought to be a random hit on the 2nd tanker, which was in cover bearing with our first victim when the shot was taken.  Estimated range 12000 meters.  Settings for tube IV:  Bow left target angle 90°, target speed 0 knots, range 1000 meters, depth 4 meters, loops right long, torpedo speed 40 knots, initial run 150 aim point center.
		16.42
		16.46
		16.49		Attack course 80°, "torpedo fire!"
				Torpedo course 83.5.  After 59 seconds high explosion column after edge of the bridge.  After it clears, the upper part of the hole in the boardwalk can be seen.  The crew went to the boats and abandoned the tanker, which heels even more now.  However he's not leaving yet. So reluctantly a T III from tube IV is prepared.  I turned to course 250°.  The crew drifts in 5 boats put to the water and one raft around me.  The one raft is exactly between me and the tanker.  Settings:  bow left 90°, target speed 0 knots, range 600 meters, relative bearing 157°, depth 7 meters, aim point forward mast/bridge.
		17.06		"Torpedo fire!"  After 56 seconds hit at aim point, small explosion column, typical for an MZ hit.  Vent covers fly off and a water fountain whistles upwards, then the tanker settled forward and took on so much list that the port bow hulls side is partially overspilled.

Sun and Moon Data 04.07.44

	- 32 -
		continued
		04.07.44	North of Panama	A sound bearing slowly growing louder causes me to take an all around sweep again, because I tried to find any clues about the tanker and looked for aircraft, also the boats float in my area, which I would like to leave.
		17.35		Suddenly behind the tanker there is a small PC-boat, I prefer to go deep as fast as possible because the distance may not be more than 400 meters.  The PC-boat stopped and fished out probably the crew.  At depth A +10 meters first set off to the northwest.
		17.42
			I want to move off and if necessary use my last torpedo as a coup de grâce.
		17.45		The late arrival of the patrol vessel is explained by the assumed hit on the 2nd tanker, because the sound bearings from that direction were growing louder and they probably looked for us first there; now it appeared here to recover the crew.
		18.00		Came to course 250°, to not get too far from the drift of the tanker.  Continual sound bearings from a diesel and a piston, as on 3 July.  Actually, they may be same two patrol vessels.
		18.40		At periscope depth.  Tanker still lies drifting before the wind abandoned by the crew and patrol vessel.  Sound bearings in 90°T and 340°T heard, possibly our patrol vessels.  Both are not distinguished in the swells.
		19.09		Back to the tanker on course 70°.
			Intention:  Coup de grâce on the starboard side to ventilate.
				Tube VI prepared.
				One sound bearing (diesel 108 RPM) in 90°T, second sound bearing in 350°T, slowly growing louder,  in 330° A PC-boat on SW course.
		19.35
		19.40		Turned to attack course for stern torpedo.
				Set values were:  for T III from tube VI:  target angle right 90°, target speed 0 knots, range 1000 meters, MZ on, relative bearing 170, torpedo speed 30 knots.
		19.47	EL 2386	Torpedo fire, shot angle 170°, torpedo course 160°, aim point forward edge of the aft superstructure.  Depth 10 meters may have been so deep, that the hit and the detonation did not happen.  Possibly a failure of the pistol.  No gyro-fluctuations heard.
		19.50		PC-boat bearing 295°T, range 4000 meters, course south, second patrol vessel bearing 330°T, poorly distinguished.
		19.55		Came to course 40° and set off because I am out of torpedoes.
		22.08		Grinding machine-like sounds bearing 90°T, rising and falling.  Went to periscope depth.  Nothing seen.  In 300°T at target angle 0° a blimp, altitude 100-200 meters, 2000 meters away.  Finally the missing armed forces component.  Again to depth 40 meters at economical submerged speed, moved off on course 60°.  The load on the battery was reduced for the least amount of discharge.  Set off.
				Began return transit.

Sun and Moon Data 04.07.44

	- 33 -
		05.07.44	North of Panama
		00.00	EL 2368
		03.36		Undefinable sound bearing 210°T.
		03.44	EL 2369	Surfaced.
			E 2, Sea 2, 6/10, Vis. 3000-4000 meters, 1015 mb
		03.45		Naxos detection from 130°T, grew louder, Volume 3, dived.
		07.12	EL 2366	Surfaced.
		07.14		Naxos detection, dived.
		11.15	EL 3141	Surfaced.
		11.18		Naxos detection from 280°T, dived.
		12.00	EL 3141	Surfaced          1 nm
			Lat.:     10°10'N	Submerged    35 nm
			Long.:  79°03'W	Day's run       36 nm
		20.00	EL 3118
		06.07.44
		00.00	EL 3116
		02.51	NE 3, Sea 2-3, Cumulus, 4/10, Vis. 4000 meters, 1014 mb	Surfaced.
		02.51		Naxos detection, growing louder from 240°T.
		02.54		Dived.
		03.33	EL 3113	Surfaced.
		03.40 - 03.44		Naxos detection, Volume 2-1, grew fainter, showed a small silhouette.
		03.48		Detection, Volume 1-2, from 110°T.
		04.15	EB 9779	Incoming Radio Message 2326/4/326:  Lauterbach:  According to B-Dienst report there was an attack by a U-boat at 17.45 hours in naval square EL 2395.
			Abating, increasing cloudiness, Summer lightening, full moon.
		04.53		Naxos detection from 120°T, growing louder, Volume 3, dived.
		06.34	EB 9773	Surfaced.
		06.35		Naxos detection, Volume 3-4 from 120°T.
		06.37		Dived.
		10.14	EB 9781	Surfaced.
		10.15		Detection from 50°T, dived, 2 different pitches.
		10.53	EB 9757	Surfaced.
		11.08		Naxos detection from 70°T, 2 different impulse frequencies, growing louder, dived.
		12.00	EB 9757	Surfaced       21 nm
			Lat.:     10°55'N	Submerged    32 nm
			Long.:  78°59'W	Day's run       53 nm
		20.00	EB 9751
		07.07.44
		00.00	EB 9716
		02.46	NE 2, Sea 2, nearly overcast, Vis. 3000 meters, 1016 mb	Surfaced.
		02.47		After Naxos detection from 270°T, dived, 2 frequencies.
		04.18	EB 9713	Surfaced.
		05.43	EB 9476	Naxos detection from 350°T, dived, because it was growing louder.
		07.31	EB 9473	Surfaced.
		07.33		Naxos detection, Volume 2, growing louder, 2 frequencies, dived.
		08.52	EB 9473	Surfaced.
		09.04		Detection from 110°T, dived.
		09.41		Surfaced.
		09.47		Naxos detection, 2 frequencies from 80°T, dived.
		10.21	Heavy tropical weather	Surfaced.
		10.48		Naxos detection, Volume 1, remained on the surface.
		10.48	EB 9457	Naxos detection, Volume 2-3, from 280°T, dived.
		12.00	EB 9457	Surfaced        23 nm
			Lat.:     11°44'N	Submerged    31 nm
			Long.:  73°00'W	Day's run       54 nm

	Sun and Moon Data 05.07.44
	Sun and Moon Data 06.07.44
	Sun and Moon Data 07.07.44

	- 34 -
		continued
		07.07.44
		20.00	EB 9455
		08.07.44
		00.00	EB 9452
		02.47	EB 9452	Surfaced.
			NE 3, Sea 2, 7/10, Vis. 3000 meters, 1018 mb
		03.02	EB 9452	Naxos detection from 310°T, dived.
		03.38		Surfaced.
		05.21	EB 9476	Naxos detection from 180°T, growing louder, dived.
		06.06		Surfaced.
		06.10		Difference between dead reckoning and actual position after a navigation fix:  152°T, 25 nm.
		07.44	EB 9543	Naxos detection, growing louder up to Volume 3 from 130°T, dived.
		08.33	EB 9551	Surfaced.
			Abating, showers, 1020 mb
		08.53	EB 9527	Naxos detection, Volume 0-2 from 170°T, dived
		10.30		Surfaced.
		10.35		Difference between dead reckoning and actual position after a navigation fix:  260°T, 3 nm.
		11.11	EB 9525	Naxos detection from 180°T, Volume 1-2, dived.
		12.00	EB 9522	Surfaced        47 nm
			Lat.:     12°33'N	Submerged    28 nm
			Long.:  77°55'W
		20.00	EB 9531
		09.07.44
		00.00	EB 9291
		02.18		Sound bearing 90°T.
		02.52		Distinguished as a diesel, 72 RPM.  Bearing only shifted 10°.
		03.12		Bearing in 75°T.
		03.21	EB 9291	Surfaced.
		03.48	NE 4, Sea 3, Cumulus, 4/10, Vis. 3500 meters, hazy, 1018 mb	Shadow bearing 120°T, vessel steered northerly course, small silhouette, avoided, steamer shifted astern.
		04.50		Difference between dead reckoning and actual position after a navigation fix:  107°T, 24 nm.
		06.45	EB 2617	Naxos detection from 190°T, growing louder, dived.
		07.30		Surfaced.
		09.20	EB 9612	Naxos detection, Volume 2, from 20°T, dived.
		10.02		Surfaced.
		12.00	EB 9344	Surfaced        58 nm
			Lat.:     12°46'N	Submerged    26 nm
			Long.:  77°28'W	Day's run       84 nm
		20.00	EB 9319
		10.07.44
		00.00	EB 9324
		02.23	NE 3, Sea 3, 2/10, Vis. 4000 meters, 1018 mb	Surfaced.
		02.30		Difference between dead reckoning and actual position after a navigation fix:  253°T, 18 nm.
		04.00	EB 9321
		06.44	EB 6994	Naxos detection from 45°T, Volume 2, dived.
		07.34		Surfaced.
		12.00	EC 4746	Surfaced        64 nm
			Lat.:     13°42'N	Submerged    26 nm
			Long.:  76°20'W	Day's run       90 nm
				Shot the 3.7 cm after removing and straightening the angle lever for the lock winder, which no longer caused disengagement of the backup safety catch by locking.  3.7 cm in operation again.  75% ammunition failures, mostly cartridge burners.
		12.17		Dived.

	Sun and Moon Data 07.07.44
	Sun and Moon Data 08.07.44
	Sun and Moon Data 09.07.44
	Sun and Moon Data 10.07.44

	- 35 -
		continued
		10.07.44	South of Haiti
		20.00	EC 4751
		11.07.44
		00.00	EC 4752
		02.09	NE 3-4, Sea 3, Cumulus, 3/10, Vis. good, 1017 mb	Surfaced.
		02.25		Difference between dead reckoning and actual position after a navigation fix:  225°T, 10 nm.
		04.00	EC 4753
		06.12	EC 4738	Naxos detection from 65°T, Volume 2, dived.
		06.25	ENE 4, Sea 4, heavily cloudy, 1018 mb	Surfaced.
		06.47		Detection from 180°T, Volume 1-2, dived.
		07.30		Surfaced.
		12.00	EC 4588	Surfaced        59 nm
			Lat.:     14°09'N	Submerged    20 nm
			Long.:  75°14'W	Day's run       79 nm
				Fired the 3.7 cm, cartridge burner.
		12.15		Dived.
		20.00	EC 4587
		12.07.44
		00.00	EC 4594
		02.14	ENE 3-4, Sea 3, Cumulus, 2/10, Vis. 4000 meters, 1016 mb	Surfaced.
		02.20		Difference between dead reckoning and actual position after a navigation fix:  10°T, 7 nm.
		04.00	EC 4647
		08.00	EC 4652
		12.00	EC 4636	Surfaced        74 nm
			Lat.:     14°54'N	Submerged    18 nm
			Long.:  73°49'W	Day's run       92 nm
				Fired the 3.7 cm.  The ammunition must be examined for tropical durability.  The continual cartridge burners are intolerable.
		12.12		Dived.
		20.00	EC 5412
		13.07.44
		00.00	EC 5413
		01.55	ENE 2, Sea 2, Cumulus, 5/10, Vis. 4000 meters, 1019 mb	Surfaced.
		02.00		Difference between dead reckoning and actual position after a navigation fix:  178°T, 20 nm.
		02.27		Incoming Radio Message 1416/12/302:  Lauterbach:  As soon as in free sea area, beyond the range of coastal air report situation.
		04.00	EC 5176
		08.00	EC 5167
		08.39		Light on the horizon, dived, to periscope depth observed again, sound bearing piston 72 RPM, first very late after it was already recognized as a neutral.
		09.05		Surfaced, moved off showing a small silhouette, because I must expect a Radio Message from the neutral.  Course 240°, probably Mona-Colon.
		12.00	EC 5242	Surfaced        67 nm
			Lat.:     15°33'N	Submerged    24 nm
			Long.:  72°48'W	Day's run       91 nm
		12.12		Dived.
		20.00	EC 5219
		14.07.44
		00.00	EC 5227
		01.55	ENE 2, Sea 2, Cumulus, 4/10, Vis. 4000 meters, 1019 mb	Surfaced.
		02.00		Difference between dead reckoning and actual position after a navigation fix:  353°T, 32 nm.
		02.26	EC 2857	Naxos detection, from 235°T, Volume 2, dived.

	Sun and Moon Data 10.07.44
	Sun and Moon Data 11.07.44
	Sun and Moon Data 12.07.44
	Sun and Moon Data 13.07.44
	Sun and Moon Data 14.07.44

	- 36 -
		continued
		14.07.44	South of Haiti
		03.17	EC 2857	Surfaced.
			Freshening
		05.55	EC 2685	Naxos detection from 115°T, dived.
		06.39		Surfaced.
		08.00	EC 2863
		11.20		Difference between dead reckoning and actual position after a navigation fix:  17°T, 7 nm.
		12.00	EC 2931	Surfaced        68 nm
			Lat.:     16°45'N	Submerged    20 nm
			Long.:  71°30'W	Day's run       88 nm
				Shot the 3.7 cm.  Despite change and and taking out other ammunition again failures.
		12.02		Dived.
		20.00	EC 2832
		15.07.44
		00.00	EC 2699
		01.57	ENE 2, Sea 2, 2/10, Vis. 2500 meters, 1022 mb	Surfaced.
		02.00		Difference between dead reckoning and actual position after a navigation fix:  330°T, 40 nm.
		02.23		Naxos detection, Volume 1, from 20°T, remained on the surface, showed small silhouette.  Detection from 30°T, Volume 2-3, dived.
		02.28	EC 2629
			Freshening
		03.20		Surfaced.
		06.37	EC 3418	Naxos detection from 30°T, Volume 1-2, dived.
		07.30		Surfaced.
		07.36		Detection from 320°T, Volume 2, dived.
		08.18		Surfaced.
		09.55	EC 3428	Naxos detection, Volume 0-1, from 30°T, dived.
		10.00		2 diesel sound bearings in 35°T and 50°T, 90 RPM, and 156 RPM, alternately starting and stopping.
		10.53		Surfaced.  Sound bearings astern.
		10.54	EC 3428	Detection.  Double impulse from the direction of the sound bearings.  New very bright impulse frequency.  Suspect search group with aircraft, dived.
		12.00	EC 3428	Surfaced        48 nm
			Lat.:     17°25'N	Submerged    23 nm
			Long.:  70°40'W	Day's run       71 nm
		20.00	EC 3453
		16.07.44
		00.00	EC 3437
		01.58	ENE 3, Sea 2, Cumulus, 2/10, Vis. good, 1021 mb	Surfaced.
		02.00		Difference between dead reckoning and actual position after a navigation fix:  25°T, 4 nm.
		04.00	EC 3519
		08.00	EC 3613	Because I want to break through on the traffic barren side of Mona Island, stayed closed to Cape Cana.  New navigation fix to check.  Difference between dead reckoning and actual position after a navigation fix:  231°T, 16 nm.
		10.00
		11.24		Dived.
		12.00	EC 3397	Surfaced      119 nm
			Lat.:     17°40'N	Submerged    17 nm
			Long.:  68°40'W	Day's run      136 nm
		20.00	EC 3395	Despite northeast course and fair visibility land is not distinguished in the periscope.  However the current here is a quite unknown factor.

	Sun and Moon Data 14.07.44
	Sun and Moon Data 15.07.44
	Sun and Moon Data 16.07.44

	- 37 -
		17.07.44	Mona Passage
		01.55	EC 3396	Surfaced.
			NE 1-2, Sea 1, Cumulus, 2/10, Vis. 4000 meters, 1022 mb
			Intention:  Pass through between Mona Island and Punta Cana possibly clamped close to the coast on course 40° outside detection range of the "Mona" and "Deschep" stations, because I believe the west side of the Passage to be less monitored and traveled.
		03.08		Land bearing from the flashing "Punta Cana" beacon identifier running fix on course 40°.  Despite keeping well clear, land shadow distinguished ahead, light glow and land shadow also distinguished to starboard.  I have continuous soundings made, in order not to put the boat in the wrong location.  The not quite reliable sounder shows 12 meters under the keel.  Turned away and moved off from the coast.  Identifier of the "Guanica Harbor" flashing beacon gives an exact navigation fix.
		03.59
			ED 1285
		04.14		Shadow bearing 260°T.  Avoided on the surface.
			Because I am now combining the navigation fixes of the Obersteuermann I am now 80 nm to the east I will continue through on the traveled route through the passage.  The current on this side is favorable.
				Running fix on "Cape Rojo".
		06.16	ED 1284	Detection (Naxos, Volume 2) from 30°T.  Under the assumption that the detection is from land, turned away and moved off with a small silhouette.
		06.31		The same detection from the same direction.  With it a bright light directed upwards.  From bearings the land station must be on the hill "Punta Melones" or somewhat south therefrom.
		06.46		Ditto. From this it follows that this station operated every 1/4 hours and only in a sector from 180°T to 0°T, because south of Cape Rojo no detection was determined.
		06.57	ED 1284	New detection NW-sector, slowly growing louder, because the maximum was broad, dived.
			NE 1-2, Sea 1, nearly cloudless, Vis. 4000 meters, 1022 mb
				Sound bearing from 40°T, slowly shifting ahead.  Probably a patrol vessel driving a barrier.
		08.27	ED 1275	Surfaced (detection, Naxos, Volume 2) from 330°T, dived.  Mona station?
		08.31
		10.21	ED 1272	Surfaced.  From surfacing Borkum detection, building up to Volume 4-5 and Naxos 2-3 from Mona station, crash dived.
		10.30	Unchanged, crescent moon
		12.00	ED 1271	Surfaced        67 nm
			Lat.:     18°01'N	Submerged    21 nm
			Long.:  67°30'W	Day's run       88 nm
		12.25		Sound bearing, diesel from 170° to 250°T shifted slowly, to periscope depth.  Masthead of a patrol vessel distinguished in 260°T.  Took bearings on land.
		13.39
		15.41	ED 1247	Diesel bearing 144 RPM traveled along with us.
				Now went to periscope depth to orient ourselves.
				Shit!  Auxiliary aircraft carrier of type "BATTLER 2" course 20°, speed 12-14 knots, range 1200 meters, passed with 6 U.S. escort destroyers. Disposition: 5 destroyers as screen formed a half circle ahead, spacing 800-1000 meters, slight zigzags, a sweeper follows in the wake.

Sun and Moon Data 17.07.44

	- 38 -
		continued
		17.07.44	Mona Passage	Aircraft carrier with various not understood signals, as well the destroyers.  After going deeper course change to 330°.  On deck 4 folded and one aircraft ready to start, mono-winged stocky, probably type "Martlet".  Before the superstructure a slowly turning high antenna reflector of an Fu.M.O.
				For the second time a carrier group runs before my tubes and I cannot get to shooting position.  If only I still had torpedoes!
			[17 July was a Monday]	When listening, the same thing happened as off Colon in square EL 2394.  Heard bright sounding tone, which could be compared to that of a hand-held grinding machine, an exact maximum was not determined, however it was louder on the passing side of the carrier.  Towed objects or tow lines which connect to noise buoys were not visible.  No aircraft with the formation; also not the usual Martlets flying close escort.  It is still Monday morning operations. And you have to let something like that go.
		17.00		Still once more at periscope depth, to make out the emigration of the formation.  Slight shift out to starboard, by that the carrier group steers a northerly course.
				Hopefully he comes to the northwest.
		17.20	ED 1247	Land bearings.
		22.00	ED 1244	Land bearings.
		18.07.44
		00.00	ED 1163
		01.15		Diesel sound bearing in 170°T.  At periscope depth an unescorted large tanker about 10000 GRT.  Course 330°, speed 14 knots, passing distance 800 meters.  Loaded.  Here in this area a boat with a snorkel would really be effective.
		02.29	ED 1163	Surfaced.
		02.31		Dived, because Naxos is out of service.
		03.18	ED 1139	Surfaced, no detections.
		04.46	NE 1-2, Sea 2, few clouds, Vis. 3500 meters, starry clear, 1023 mb	Aircraft with set position lights bearing 10°T in passing flight.  Range 2000 meters.  In the assumption that I am unnoticed, crash dive.  Aircraft flies without locating, no marine phosphorescence.
		06.08		Surfaced.  After surfacing Naxos detection from 130°T, turned away, bearing shifted ahead and was louder, dived.
		06.14
		07.03	DO 7794	Surfaced.
		07.49	NE freshening, 6/10, Vis. 3000 meters, 1023 mb	Incoming Radio Message 1058/17/369:  Tillessen, Lauterbach by 22 July report position and fuel inventory or situation,  assume that you are on return transit.
		11.08		Dived after the beginning of dawn.
		12.00	DO 7811	Surfaced        62.0 nm
			Lat.:     67°33'N	Submerged    26.5 nm
			Long.:  19°24'W	Day's run       88.5 nm
		18.00		To reception depth.
		20.00	DO 7572
		19.07.44
		00.00	DO 7594
		01.45	DO 7546	Surfaced.

	Sun and Moon Data 17.07.44
	Sun and Moon Data 18.07.44
	Sun and Moon Data 19.07.44

	- 39 -
		continued
		19.07.44	North of Puerto Rico
		04.00	DO 7516
		05.51	NE 2, Sea 2, nearly overcast, Vis. 20 nm, 1025 mb	Incoming Radio Message 2206/18/384:  According to B-Dienst report at 15.12 hour a U-boat wake was sighted in naval square DN 7684.
				This square differs from our by 390 nm in 90°T.  At this time the boat was a depth A -40 meters.
		08.00	DO 7285
			ENE 2-3, Vis. clearing, improving to 3000 meters
		11.06		Dived after the beginning of dawn.
		12.00	DO 7266	Surfaced        66.0 nm
			Lat.:     20°50'N	Submerged    30.5 nm
			Long.:  66°47'W	Day's run       96.5 nm
		20.00	DO 7318
		20.07.44
		00.00	DO 7316
		01.54	DO 7324	Surfaced.
		02.00	NE 2-3, Sea 2, Cumulus, 4/10, Vis. 2000 meters, 1024 mb	Difference between dead reckoning and actual position after a navigation fix:  212°T, 11 nm.
		03.42		Radio Message 0250/20/203:  From Lauterbach:  Sank 5 June 1224 freighter 3000 GRT, course 210°, torpedoed 5 tankers of 35000 GRT, of these 9000 tonner in ballast abandoned by crew, sinking likely EL 2324.  Tropical experience TV:  Leakage at the angle spindle with and without grease fitting from melting seal grease.  Eliminated by "Mobil Compound" grease.  Am missing:  379 of 21 June, 318-25 and 27-331 of 4 and 5 July.  DO 49, 104 cbm, out of torpedoes.
		04.13	DO 7326	Outgoing Radio Message:  0323/20/304:  On 17 July an auxiliary carrier, 6 escort destroyers, course 350°, ED 1247, high sinking tone.  Traffic:  Strong independent traffic vis ED 1119 and 1244 from north-south.
			ESE 3, Sea 2, Cumulus, 4/10, Vis. 2000 meters, 1024 mb, new moon
				Strong independent traffic and small convoys via EC 9535 from east-west and
				between EL 2395 and 3154.
				Only partly air and sea escort, inexperienced, not tenacious.  EL 23 day airships.  After being noticed strong sea and air up to 100 nm circle.  Air by Naxos.    From Lauterbach.
		06.47	DO 4996	Naxos detection, Volume 1, was slowly louder, turned away, dove.
		06.52
		0751	Weather unchanged	Surfaced.
		10.26	DO 5755	Naxos detection from 80°T, dived.
		12.00	DO 5752	Surfaced        76 nm
			Lat.:     21°48'N	Submerged    38 nm
			Long.:  65°21'W	Day's run      114 nm
		20.00	DO 5737
		23.17	DO 5737	Sound bearing of the aircraft carrier sounds bearing 35°T, Volume 2-3, broad maximum, nothing seen.
		21.07.44
		02.35	DO 5733	Bearing slowly grew fainter, shifted to 353°T.
		02.36		Surfaced,. Naxos detection, Volume 2, from 10°T.
		02.37		Dived.  Sound bearing was growing louder, shifted again to the west.
		04.55	DO 5733	Diesel bearing 10°T.
		06.14	DO 5811	Surfaced.

	Sun and Moon Data 19.07.44
	Sun and Moon Data 20.07.44
	Sun and Moon Data 21.07.44

	- 40 -
		continued
		21.07.44	North of Puerto Rico
		06.52	E 2, Sea 2, Cumulus, 2/10, Vis. 2000 meters, 1022 mb	Incoming Radio Message 0435/21/317:  Serial No. 311 and 312 are repeats of missing messages for Lauterbach.
		06.30		Incoming repeat of Radio Message 1531/20/311:  For Lauterbach:  Repeat etc . . . .
		07.50		Incoming Radio Message 2345/20/313 contained the assassination attempt on the Führer.
			A greater pity and a greater crime is unimaginable. We hope the Führer remained unwounded.
		08.30	DO 5822	Incoming Radio Message 1220/20/307:  To Lauterbach: Lauterbach well done.  Your Ob.d.M. and B.d.U.
		10.25	DO 5595	Naxos detection Volume 1, from 10°T.
		10.26		Dived.
		12.00	DO 5595	Surfaced        43 nm
			Lat.:     22°19'N	Submerged    37 nm
			Long.:  64°08'W	Day's run        80 nm
		11.34		Diesel sound bearing briefly in 18°T.
		20.00	DO 5671
		22.07.44
		02.12	DO 5673	Surfaced.
		05.21		Incoming Radio Message 1639/20/312:  Repeat of Radio Message for Lauterbach  etc.
		06.00	E 3-4, Sea 3, overcast, rain showers, Vis. changing, 1025 mb	Incoming Radio Message 1306/20/309:  To Lauterbach:
				1.)  From press reports in Barranquille shipwrecked crew of the tanker converted from a freighter "HOLLYWOOD" came ashore.  The ship was sunk by a U-boat.  Was written on the swimming trunks.
				2.  Return transit to western France.
				That can only be the one on 11 June on westerly course, if it did not belong to Tillessen.
		08.00	DO 6441
			Abating and clearing
		10.48	DO 6427	Difference between dead reckoning and actual position after a navigation fix:  301°T, 23 nm.
		10.52	DO 5633	From 90°T 2 carrier aircraft fly past at about 500 meters range to port and starboard of the boat without attacking.  Crash dive.  One had a white light set.  Aircraft flew without radar.  Was probably unnoticed, because no bombs followed.
		12.00	DO 5633	Surfaced        58 nm
			Lat.:     23°03'N	Submerged    26 nm
			Long.:  63°08'W	Day's run       84 nm
		20.00	DO 5399
		23.07.44
		02.24	DO 5392
			E 0-1, Sea 1, Cumulus, 2/10, Vis. 3500 meters, 1025 mb	In case we were noticed, I'll make an evasive movement to the north.  Surfaced.
		05.11	Bright wake	From 90°T a carrier aircraft in approach with searchlight.  Range 300-400 meters, no radar.  Aircraft type "Martlet", overflew the boat across the stern.  No bombs observed or heard.  Crash dived.  It remains to be seen if carrier aircraft was equipped with a new type of radar gear or if the boat was detected visually (foam strip, light sparking, diesel HF) and because of the very dark night was surprised itself by the sighting and it was too late for a sharp approach.

	Sun and Moon Data 21.07.44
	Sun and Moon Data 22.07.44
	Sun and Moon Data 23.07.44

	- 41 -
		continued
		23.07.44	North of Puerto Rico	It is certainly a fact that the Americans have come so far that they can launch aircraft even on a dark night.
		05.11
		05.35		Several small caliber aircraft bombs on the starboard side.   Now we are noticed for sure!
				Avoidance maneuver to the NW.
		08.32	DO 5355	Diesel sound bearing in 70°T, later still heard in 80°T, however soon replaced by the grinding machine.  This shifted slowly to 160°T then ahead again.  Various secondary maximums [background noises], maximum changes when coming higher [in depth], and jumps to 125°T and then shifts to 90°T.  Volume 5.  At periscope depth only a short topmast distinguished because of haze and sun on the horizon.
		09.32
		12.30
		12.00	DO 5334	Surfaced        26 nm
			Lat.:     23°53'N	Submerged     23 nm
			Long.:  63°19'W	Day's run        49 nm
		13.00		At periscope depth, a maximum in 80°T, there in the periscope a destroyer mast, second maximum in 280°T, nothing seen there.
				The grinding machines run continuously in the sector between 70° + 100°T, once louder, then again fainter.  The sound source proceeds back and forth there.
		19.47	DO 5323	No further sound bearings.
		22.10		Grinding machine bearing 100°T.
		22.45		No sound bearings.
		24.07.44
		00.40	DO 2988	Diesel bearing 75°T.
		01.47 - 02.20		Grinding machine bearing 75°T.
		02.56	E 1, Sea, Cumulus, 4/10, showers, Vis. changing, 1025 mb	Surfaced to charge and ventilate.
		04.14	DO 2981	Dived.
		04.40		Grinding machine bearing 90°T, very faint.
		05.48		Surfaced.
		07.08	DO 2945	Dived.
		07.15		Grinding machine bearing 95°T, very faint.
		08.49		Surfaced.
		09.35	DO 2942	Dived.
		12.00	DO 2917	Surfaced        33 nm
			Lat.:     24°38'N	Submerged    25 nm
			Long.:  63°55'W	Day's run       58 nm
		15.38 - 18.45		Transitory grinding machine between 75° and 90°T, back and forth.
		20.00	DO 2836
		25.07.44
		02.20	DO 2833	Grinding machine bearing 85°T, very faint.
		02.29	ENE 2-3, Sea 2, Cumulus, 1/10, Vis. 3000 meters, 1027 mb	Surfaced and came to NE course.
		02.50		Difference between dead reckoning and actual position after a navigation fix:  68°T, 25 nm.
		03.35	Crescent moon	Moonset.
		04.37	DO 2691	Dived.  After diving several detonations to the starboard side, very faint.
		05.16		Grinding machine bearing 45°T, very faint.
		06.03	DO 2667	Surfaced.

	Sun and Moon Data 23.07.44
	Sun and Moon Data 24.07.44
	Sun and Moon Data 25.07.44

	- 42 -
		continued
		25.07.44	North of Puerto Rico
		07.28	DO 2665	Dived.
		08.48		Surfaced.
		09.43	DO 3441	Dived.
			E 2, Sea 1-2, Cumulus, 3/10, Vis. 2500 meters, 1025 mb
		12.00	DO 3441	Surfaced        43 nm
			Lat.:     25°30'N	Submerged    34 nm
			Long.:  63°02'W	Day's run       77 nm
		20.00	DO 3415
		26.07.44
		02.23	DO 3177	Surfaced.
		02.35	E 2, Sea 1-2, Cumulus, 2/10, Vis. 4000 meters, 1027 mb	Difference between dead reckoning and actual position after a navigation fix:  310°T, 4 nm.
		04.18		Incoming Radio Message 1455/25/381:  Tillessen, Lauterbach:  On return transit proceed with due caution.  Keep the crew at the highest alertness.  Aways expect the surprise appearance of land and carrier aircraft.  Air surveillance in the Central Atlantic is more dangerous than close to land, because of the apperance of the enemy is sudden and attitude of the crew is not as in the operations area.
		05.00		Incoming Radio Message 1617/25/383:  Tillessen:  According to a B-Dienst report at 03.45 hours sound contact in naval square DP 2577.
				The question is was that him? Because around 03.45 hours yesterday I came from course 100° to 40° and according to previous experience, the decoded squares for DN, DO and DP are not always right.  On 25 July after diving, at 05.11 hours I also had the sound bearing I initially had on 85°T, in 45°T.
			I believe that B-Dienst must mean this square, the report and our position/time agree.
		08.00	DD 8795
		1014		Dived.
		12.00	DO 8841	Surfaced      105 nm
			Lat.:     27°18'N	Submerged    25 nm
			Long.:  61°47'W	Day's run      130 nm
		16.00 - 17.00		Several very faint aircraft bombs or detonations.
		19.48	DD 8816	Grinding machine bearing 120°T, heard faintly until surfacing [at 02.37 hours], . . .
		27.07.44
		00.00	DD 8813	in the course of this around 140°T farthest astern, then back to 130°T, very faint.
		02.25
		02.37	DD 8587	Surfaced
		03.02	ENE 1-2, Sea 1, Cumulus, 4/10, Vis. 4000 meters, 1027 mb, moon	Difference between dead reckoning and actual position after a navigation fix:  296°T, 4 nm.
		04.45	Moonset
		08.00	DD 8611
		10.10		Dived.
		12.00	DD 8382	Surfaced        101 nm
			Lat.:     28°45'N	Submerged      33 nm
			Long.:  60°08'W	Day's run       134 nm
		16.18 )
		16.45  )		Several aircraft bombs far off.
		21.15  )
		21.34  )
		20.00	DD 8359

	Sun and Moon Data 25.07.44
	Sun and Moon Data 26.07.44
	Sun and Moon Data 27.07.44

	- 43 -
		28.07.44	Southeast of Bermuda
		0x.xx	[illegible position and weather]	Surfaced
		03.xx		Difference between dead reckoning and actual position after a navigation fix:  42°T, 16 nm.
		04.00	[illegible position and weather]
		08.00	[illegible position and weather]
		12.00	DD 6817  [approximate]	Surfaced        88 nm
			Lat.:     30°01'N	Submerged    32 nm
			Long.:  58°12'W	Day's run      120 nm
		20.00	DD 6821
		29.07.44
		01.36	DD 6988	Surfaced.
		01.50	ENE 1, Sea 0-1, Cumulus, 3/10, Vis. 4000 meters, 1031 mb	Difference between dead reckoning and actual position after a navigation fix:  109°T, 96 nm.
		05.47		Moonset
		08.00	DD 6648
		09.40	Hazy horizon, Vis. 2000 meters	Dawn.
		10.00	DD 6694	Dived.
		12.00	DD 6635	Surfaced        81 nm
			Lat.:     31°06'N	Submerged    37 nm
			Long.:  56°10'W	Day's run       118 nm
		18.00	DD 6816
		18.52		Grinding machine somewhat murkier than heard before, bearing 120°T, faint, nothing seen.
		19.47		No further sound bearings
		30.07.44
		01.20		Grinding machine bearing 100°T, faint.
		01.44	DE 4173	Surfaced.
		02.00	N 1, Sea 0-1, Cumulus, 2/10, Vis. 4 nm, 1032 mb, moon	Difference between dead reckoning and actual position after a navigation fix:  2452°T, 6 nm.
		08.00	DE 4136
			Lightly hazy horizon, 1030 mb
		10.03	DE 1878	Dived.
		12.00	DE 1879	Surfaced        77 nm
			Lat.:     32°11'N	Submerged    38 nm
			Long.:  54°25'W	Day's run       115 nm
		16.34		Several detonations on the starboard side.
		17.22		6 depth charges ahead, very faint.
		20.12	DE 1882	Several detonations on the starboard side, medium loud.
		31.07.44
		01.55	DE 1859	Surfaced.
		01.59	NNW 2-3, Sea 2, Altocumulus, 7/10, Vis. 2500 meters, 1029 mb, moon	Difference between dead reckoning and actual position after a navigation fix:  238°T, 4 nm.
		04.00	DE 1863
		09.58	DE 1689	Dived.
		12.00	DE 1694	Surfaced        72 nm
			Lat.:     33°08'N	Submerged    37 nm
			Long.:  52°39'W	Day's run      109 nm
		20.00	DE 1669
		01.08.44
		01.03	DE 2445	Surfaced.
			NbyE 1-2, Sea 1, 5/10, Vis. 3000 meters, 1030 mb

	Sun and Moon Data 28.07.44
	Sun and Moon Data 29.07.44
	Sun and Moon Data 30.07.44
	Sun and Moon Data 31.07.44
	Sun and Moon Data 01.08.44

	- 44 -
		continued
		01.08.44	East of Bermuda
		01.19		Difference between dead reckoning and actual position after a navigation fix:  312°T, 8 nm.
		04.00	BE 2425
		08.00	DE 2271	Main transmitter out of service.
		09.58	DE 2248	Dived.
		12.00	DE 2248	Surfaced        86 nm
			Lat.:     34°20'N	Submerged    36 nm
			Long.:  50°44'W	Day's run      122 nm
		12.35		Propeller sounds bearing 280°T, 84 RPM, shifted slowly.
				At periscope depth nothing distinguished.
		14.50		First recognized as diesel,  bearing 310°T.
		15.27		2 depth charges loud.
		15.28		1 depth charge, slight concussion in the boat.
		15.34		1 depth charge felt, at periscope depth nothing.
		15 38		1 depth charge.
		16.45	DE 2251	Sound bearing, now faint shifted slowly forward until it disappeared ahead.
		20.00	DE 2229	Main transmitter in service again.
		02.08.44
		01.04	DE 2237	Surfaced.
		01.15	N 1-2, Sea 1, changing cloudiness, Vis. 4000 meters, 1029 mb, moon	Difference between dead reckoning and actual position after a navigation fix:  255°T, 4 nm.
		04.00	CC 9777
			NNW 2, Sea 2
		08.00	CC 9756
			Freshening
		09.41	CC 9763	Dived.
		12.00	CC 9763	Surfaced        81 nm
			Lat.:     48°46'N	Submerged    37 nm
			Long.:  35°20'W	Day's run      118 nm
		20.00	CC 9815
		03.08.44
		00.50	CC 9824	Surfaced.
		01.03	NNW 3, Sea 3, 4/10, Vis. 3500 meters, 1029 mb, moon	Difference between dead reckoning and actual position after a navigation fix:  340°T, 9 nm.
		04.00	CC 9591
		08.00	CC 9643
			Increasing cloudiness, 1023 mb
		09.30	CC 9628	Dived.
		12.00	CC 9626	Surfaced        78 nm
			Lat.:     36°27'N	Submerged    37 nm
			Long.:  46°47'W	Day's run      115 nm
		20.00	CC 2399
		04.08.44
		00.47	CD 7171	Surfaced.
		00.45	NNW 2, Sea 1-2, 5/10, Vis. 3000 meters, 1025 mb, full moon	Difference between dead reckoning and actual position after a navigation fix:  303°T, 10 nm.
		04.00	CD 7152
		08.00	CD 7211
		09.33	CD 7212	Dived.
		12.00	CD 4879	Surfaced        85.5 nm
			Lat.:     37°31'N	Submerged    35.0 nm
			Long.:  44°56'W	Day's run      120.5 nm
		20.00	CD 4886
		23.08	CD 4891	Surfaced.
			E 0-1, Sea 0, 3/10, Vis. 8 nm

	Sun and Moon Data 01.08.44
	Sun and Moon Data 02.08.44
	Sun and Moon Data 03.08.44
	Sun and Moon Data 04.08.44

	- 45 -
		continued
		04.08.44	West of the Azores
		23.15		"Aircraft"  Large aircraft on parallel course bearing 240°T.  Apparently the aircraft did not notice the boat, despite medium range crash dived.  Only ßß was transmitted without further groups.
		23.16
		05.08.44
		01.37	CE 4892	Surfaced
			E 1-2, Sea 1, 4/10, Vis. 4000 meters, 1027 mb
		04.00	CD 4946
		08.00	CD 4936
			Freshening
		09.00	CD 5714	Dived.
		12.00	CD 5712	Surfaced        82 nm
			Lat.:     38°18'N	Submerged    39 nm
			Long.:  42°28'W	Day's run     121 nm
		20.00	CD 5488
		21.33		3 detonations, medium-loud, starboard side.
		06.08.44
		00.21	CD 5619	Surfaced.
		00.28	E 1, Sea 1, 3/10, Vis. 5000 meters, 1034 mb	Crash dived for a light close on the horizon, no sound bearing.  At periscope depth later 2 lights were recognized, which seemed to be the lights of a steamer, nothing heard.  I am a bit suspicious because I do not expect neutrals in this area and the course is approximately 240°.
		01.12		Surfaced, closed.
				Small smoking steamer about 1200 GRT, illuminated marking "Eire" and name, which was not distinguished.  Closed to 2000 meters, then turned away and because I was not certain if he would report me, moved off with deceptive course north.  Manned the 600-meter wavelength, after 2-hours off again.
		02.15		Steamer out of sight.
		04.00	CD 5493
		08.00	CD 5565	Difference between dead reckoning and actual position after a navigation fix:  104°T, 15 nm (04.08 hours).
		09.03	CD 5644	Dived.
		12.00	CD 5643	Surfaced        81 nm
			Lat.:     38°52'N	Submerged    37 nm
			Long.:  40°18'W	Day's run     118 nm
		20.00	CD 5627
		07.08.44
		00.09	CD 5629	Surfaced.
			E 0-1, Sea 0, 7/10, Vis. 15 nm, obscured horizon, starry clear, 1036 mb
		04.00	CD 6179
		04.35		Difference between dead reckoning and actual position after a navigation fix:  295°T, 7 nm.
		07.50		Tillessen reports he is about 300 nm from me, Krankenhagen, Lange and Steen have still not reported.
		08.00	CD 6168
		09.05	CD 6165	Dived.
		12.00	CD 6166	Surfaced       88.5 nm
			Lat.:     39°46'N	Submerged    36.0 nm
			Long.:  37°56'W	Day's run     124.5 nm
		15.33		Detonation, very faint.
		20.00	CD 6243

	Sun and Moon Data 04.08.44
	Sun and Moon Data 05.08.44
	Sun and Moon Data 06.08.44
	Sun and Moon Data 07.08.44

	- 46 -
		08.08.44	West of the Azores
		00.25	CD 6228	Surfaced.
			Wind calm, no seas, 4/10, Vis. changing, obscured horizon, 1039 mb)
		04.00	CD 3978
		05.29		Outgoing ßß 0529:  Repeat messages that are important for me from the 22nd day of the past month, 336, 362, 363.
				U-539.
				Short Signal was sent on 36 meters on alternate frequency.  The requested Radio Messages came in at 06.27 and 06.57.
		08.00	CD 3992
		08.41	CD 3969	Dived.
		12.00	CE 1747	Surfaced        86.5 nm
			Lat.:     40°34'N	Submerged    37.0 nm
			Long.:  35°29'W	Day's run      123.5 nm
		18.27		Incoming Radio Message 1117/8/327:  Tillessen, Lauterbach:  On 9 August at 08.00 hours switch to Ireland Circuit.
		20.00	CE 1751
		09.08.44
		00.09	CE 1752	Passed the Swedish Route.
			Like yesterday, 1035 mb
		01.14	CE 1737	Naxos detection from ahead, dived.
		01.22		Sounds growing louder, together with singing tone, which shifted astern from 30°T.
		03.00	CE 1738	Surfaced.
		03.35		The wake of the vessel comes to us.
		04.00	CE 1734
		06.35	CE 1721	Aft diving plane jams hard down.
		08.00	CE 1594	The aft diving plane is conditionally operable again. Switched to "Ireland" Circuit.
		08.23	CE 1594	Dived.
		12.00	CE 1595	Surfaced        70 nm
			Lat.:     41°16'N	Submerged    40 nm
			Long.:  33°15'W	Day's run      110 nm
		20.00	CE 1648	Diving plane in operations again.
		21.22		7 depth charges far off.
		10.08.44
		00.07	CE 1657	Surfaced.
		00.13	SW 1, Sea 1, 4/10, Vis. good, changing horizon, 1029 mb	Difference between dead reckoning and actual position after a navigation fix:  267°T, 20 nm.
		04.00	CE 1637
			Unchanged
		08.21	CE 2421	Dived.
		12.00	CE 2488	Surfaced        84.5 nm
			Lat.:     42°00'N	Submerged    37.0 nm
			Long.:  31°14'W	Day's run      121.5 nm
		20.00	CE 2195
		11.08.44
		00.02	CE 2271
			SW 2, Sea 2, Altocumulus, 8/10, Vis. 3000 meters, changing hazy horizon, 1025 mb	Surfaced.
		04.00	CE 2265
		05.04		Difference between dead reckoning and actual position after a navigation fix:  288°T, 4 nm.

	Sun and Moon Data 08.08.44
	Sun and Moon Data 09.08.44
	Sun and Moon Data 10.08.44
	Sun and Moon Data 11.08.44

	- 47 -
		continued
		11.08.44	North of the Azores
		08.16	CE 2327	Dived.
		12.00	CE 2328	Surfaced        83 nm
			Lat.:     42°38'N	Submerged    37.5 nm
			Long.:  28°53'W	Day's run      120.5 nm
		20.00	CE 2335
		23.52	CE 3114	Surfaced.
		12.08.44	SW 2, Sea 2, Cumulonimbus, 8/10, Vis. changing - 3000 meters, hazy horizon, 1026 mb
		04.00	BD 9887
			Clearing, Vis. improving
		07.30	Moonrise	Difference between dead reckoning and actual position after a navigation fix:  23°T, 10 nm.
		08.00	BD 9947	Dived.
		12.00	BD 9948	Surfaced        80.5 nm
			Lat.:     43°15'N	Submerged    37.0 nm
			Long.:  26°14'W	Day's run      117.5 nm
		20.00	BD 9955
		23.47	BD 9956	Surfaced.
		23.52	SW 3, Sea 2, few clouds, Vis. 4000 meters, lightly hazy horizon, 1027 mb	Difference between dead reckoning and actual position after a navigation fix:  210°T, 11 nm.
		13.08.44
		00.46	BD 9967	Naxos detection from 20°T, dived.
		01.57		No sound bearing, surfaced.
		01.59		Detection, Volume 1, from 350°T, showed the stern, moved off on the surface, because assumed a surface vessel on a westerly course.  With slight zigzags slowly came back to old course.
		02.00
		03.00	BD 9992
		04.00	BE 7747
		07.40	BE 7756
		07.41	Increasing cloudiness	Dived.
		12.00	BE 7764	Surfaced        63 nm
			Lat.:     43°21'N	Submerged    42 nm
			Long.:  23°54'W	Day's run      105 nm
		20.00	BE 7841
		23.47	BE 7842	Surfaced.
		14.08.44	SW 3, Sea 2-3, Cumulus, 1/10, Vis. 3000 meters, 1027 mb
		04.00	BE 7838
			Increasing cloudiness, Vis, changing 3000 meters, isolated Summer lightening
		07.25	BE 7924	Dived.
		07.56		5 aircraft bombs (bomber series throw?) faint ahead to port.
		09.10		3 detonations ahead.
		12.00	BE 7922	Surfaced        83 nm
			Lat.:     43°42'N	Submerged    39 nm
			Long.:  21°14'W	Day's run      122 nm
		13.27		2 depth charges ahead to port, loud.
		13.53		3           "               "           "       "
		14.21		2           "               "           "       "
		15.20		Incoming Radio Message 1121/14/112:  Tillessen, Lauterbach, Officer-Only:  Due to defense situation off Bordeaux begin return transit to Trondheim immediately. If it is absolutely necessary, even with some stretching of supplies, a small supply from an other IXc boat is possible in square AK northern half.  Give required quantity by Short Signal

	Sun and Moon Data 11.08.44
	Sun and Moon Data 12.08.44
	Sun and Moon Data 13.08.44
	Sun and Moon Data 14.08.44

	- 48 -
		continued
		14.08.44	North of the Azores
		16.00	BE 7923	Set course for AK 3915.  Came to course 340°.  Fuel and provision-wise am short only a small quantity.  Then I will have practically no reserve.  After stretching there are still provisions for at most 30 days.  With an initial day's run of 80-85 days and a average consumption of 1.5 cbm/day for the first stage, 13 days, I consume 19.5 cbm.  The last stage requires a transit in the especially air endangered area with a day's run of 55-60 nm and also a consumption of 1.5 cbm (3 hours HF full charing) 20 days and 30.0 cbm.  Total 49.5 cbm and 33 days, without the necessary margin for unpleasant adverse weather etc.  Of course, if we are very lucky then both [provisions and fuel] will be enough, but to fumble around 50 nautical miles before convoy intake is not my thing.
		19.00		3 detonations.
		20.00	BE 7689
		23.38	BE 7686	Surfaced.
		15.08.44
		03.28	SW 3, Sea 2, Cumulonimbus, 6/10, Vis. changing 2000-3000 meters, 1020 mb	On 36 meters Outgoing ßß 0328:  My position is BE 79.  Necessary fuel oil 15 cbm.  Have provisions for 4 weeks.  U-539.
		04.16	BE 7624	Incoming Radio Message 0348/15/122:  Received by Bernau with Volume 5 on 36 meters at 03.28 and 03.29 ours.
			Abating, overcast, drizzle, Vis. 10 nm
				1.)  Short Signal from Lauterbach:  BE 79 need 15 cbm fuel oil, have provisions for 4 weeks.
				2.)  Short Signal weather report from Bode.
		06.30	Vis. deteriorating, light fog, wind calm	If the weather remained like this we could go without supply.
		07.43	BE 7373	Dived.
		12.00	BE 7349	Surfaced        61.5 nm
			Lat.:     45°04'N	Submerged    37.0 nm
			Long.:  21°40'W	Day's run       98.5 nm
				With a consumption of 1,340 cbm that is very favorable.  Why does Tillessen not answer?
		14.30		3 depth charges, faint in E-sector.
		14.41		4          "                "          "
		16.28		3          "                "          "
		20.00	BE 7318
		23.27	BE 7314	Surfaced.
		23.58	BE 7311	Naxos detection, Volume 2 from 250°T, was louder, dived.
		16.08.44
		01.03	WNW 2-3, Sea 2, heavily cloudy, Vis. 1500-3000 meters, 1019 mb	Surfaced.
		02.35		Incoming Radio Message 1838/15/133:  1.)  Lauterbach head for AK 10 to sully from Ohlsen.  Details to follow in time.  2.)  Tillessen assume that Norway can be reached without supply.  (I hardly believe that!)
		04.00	BE 4862
			Abating, nearly overcast
		07.19	BE 4837
		12.00	BE 4837	Surfaced        49 nm
			Lat.:     46°24'N	Submerged    34 nm
			Long.:  22°27'W	Day's run       83 nm
		18.10		Individual distant depth charges. Every 10 minutes up to 19.10 hours on the starboard side.
		20.00	BE 4586
		23.26	BE 4582	Surfaced.

	Sun and Moon Data 14.08.44
	Sun and Moon Data 15.08.44
	Sun and Moon Data 16.08.44

	- 49 -
		17.08.44	North of the Azores
		04.00	WNW 3, Sea 2-3, overcast, low hanging clouds, 1020 mb
		04.49		Incoming Radio Message 0437/17/155:  Tillessen reports on 36 meters at 04.28 hours received at Volume 5:  My position is BE 42.  No.
			WSW 3, Sea 3, low hanging clouds, 1017 mb	That means that he also must supply.  He is not located approximately 30 nm ahead of us.
		07.15	BE 4274	Dived.
		12.00	BE 4247	Surfaced        57 nm
			Lat.:     47°42'N	Submerged    32 nm
			Long.:  23°28'W	Day's run       89 nm
		20.00	BE 4162
		23.47	BE 4138	Surfaced.
			W 3, Sea 3, Altostratus, 6/10, Vis. 10 nm, 1015 mb
		18.08.44
		00.00		Difference between dead reckoning and actual position after a navigation fix:  170°T, 18 nm.
		03.21		Incoming Radio Message 1929/17/166  Officer-Only:  1.)  Bode, Lauterbach:  Carry out meeting for necessary supply of Lauterbach for return transit to Norway at sunset on 22 August in square AK 8266.  Behavior in accordance with Standing Order 24. Greatest caution.  Report first if not met by the 3rd evening.  Supplemental for Bode:  do not interrupt weather reports if possible, return transit not before 1 September because at the moment no relief is possible.
				2.)  Ohlsen, Tillessen:  carry out meeting analogously as under 1.) on 26 August in square AK 1832.
		04.00	BE 1788	Course for new objective point.
		06.14	BE 1785	Naxos detection, Volume 1 from 340°T, dived.
		12.00	BE 1781	Surfaced        45 nm
			Lat.:     48°33'N	Submerged    35 nm
			Long.:  24°30'W	Day's run       80 nm
		20.00	BE 1745
		23.46	BE 1741	Surfaced.
		19.08.44	NW 5, Sea 4, nearly overcast, showers, Vis. changing, 1000-3000 meters, 1016 mb
		01.50	BD 3935	Naxos detection, Volume 1, dived.
		02.59		Surfaced.
		04.00	BD 3931
			NW 4, Sea 4, overcast, showers, 1015 mb

	Sun and Moon Data 17.08.44
	Sun and Moon Data 18.08.44
	Sun and Moon Data 19.08.44

	- 50 -
		continued
		19.08.44	Southeast of Greenland
		06.53	BD 3682	Naxos detection, Volume 2, from 335°T, dived.
		12.00	BD 3657	Surfaced        50 nm
			Lat.:     49°33'N	Submerged    36 nm
			Long.:  25°58'W	Day's run       86 nm
		20.00	BD 3642
		23.54	BD 3617	Surfaced
		20.08.44	NW 2, Sea 2, Cumulonimbus, 4/10, Vis. 3000 meters, 1027 mb
		00.00		Difference between dead reckoning and actual position after a navigation fix:  70°T, 8 nm.
		04.00	BD 3283
			Abating, increasing low Stratus, haze
		07.17	BD 3218	Dived.
		12.00	BD 3214	Surfaced        77 nm
			Lat.:     50°51'N	Submerged    34 nm
			Long.:  27°54'W	Day's run      111 nm
		18.10		5 aircraft bombs to starboard, medium-loud.
		20.00	AK 9898
		21.08.44
		00.07	AK 9894	Surfaced.
			WNW 2, Sea 2, fog, Vis. 500 meters, 1027 mb	The right supply weather, hopefully we will find each other and the weather holds.
		04.00	AK 9842
			Showers, strong marine phosphorescence
		07.50		Fired the anti-aircraft weapons.  Rammer is out of service so only semi-automatic fire.  Dived.
		08.05	AK 9489
		12.00	AK 9485	Surfaced         84 nm
			Lat.:     52°02'N	Submerged     32 nm
			Long.:  30°14'W	Day's run      116 nm
		13.29		2 medium-loud aircraft bombs.
		13.50		10 loud aircraft bombs (light concussion in the boat) both times ahead to port.
		20.00	AK 9449	Prepared for fuel transfer.
		23.53		Surfaced.
		22.08.44
		00.00	AK 9448
		00.27	AK 9444	Naxos detection, Volume 0-1, from 280°T, dived.
		01.18	SW 2, Sea 2, fog, Vis. 5 nm, 1024 mb	Surfaced.
				By Serial Nos. 129 and 130 come 2 reports garbled from Control, probably from "von der Esch", reporting a convoy at 23.16 hours in square BD 2271 and at 00.48 hours in 2541.  If the indicated course is indeed NE, I am in a favorable position, if only I still had torpedoes.  I almost believe that Esch is with the southbound Swedes because they should be there now.  Indeed the detections may have come from the direction of the convoy escort vessels.
		04.00	AL 8626
			Freshening, 1018 mb
		08.02	AK 8347	Dived.
			SSW 4, Sea 3-4, fog, Vis. 5 nm, squalls, 1012 mb
		12.00	AK 8266	Supply square.                 Surfaced        80.5 nm
			Lat.:     53°15'N	Submerged       34 nm
			Long.:  32°35'W	Day's run      114.5 nm
		15.28	AK 8266	Surfaced for a navigation fix.
		15.32	WNW 3, Sea 3-4, overcast, low hanging, fog banks, 1008 mb, Vis. 3 nm	Dived.

	Sun and Moon Data 19.08.44
	Sun and Moon Data 20.08.44
	Sun and Moon Data 21.08.44
	Sun and Moon Data 22.08.44

	- 51 -
		continued
		22.08.44	Southeast of Greenland
		18.08	AK 8266	Surfaced for a navigation fix.
		18.11	Freshening, cloudy	Dived.
		19.57	AK 8266	Surfaced for a navigation fix.
		20.02	Low hanging Cumulus and Altocumulus, 8/10, WNW 4, Sea 3-4, Vis. 6 nm, 1013 mb	Came to course 320°, difference between dead reckoning and actual position after a navigation fix:  140°T, 15 nm.
		23.34	AK 8269	Surfaced.
			WNW 4, Sea 3, 7/10, Vis. 4 nm, 1015 mb	Proceeded in search courses around the square, nothing seen of Bode.
		23.08.44
		02.01		Dived in accordance with Standing Order 24.
		02.30		Engine sounds in 280°T.  Suspect:  Bode.
		02.40		"          "     in 281°T last bearing.
		02.51	WNW 4, Sea 4, overcast, rain showers, Vis. 5 nm, 1017 mb	Surfaced. Pursued sound bearing.
		03.46		Dived.  Faint sound bearing in 220°T.
		04.09		Surfaced.
		04.25 - 04.40		Circled, afterwards back and forth in position.
		06.07	AK 8265	Dived to listen.
				Nothing.  Either Bode passed me or I passed him.
		07.14		Surfaced to run back.
		07.30		Dawn.
		08.11		Dived.
		12.00	AK 8266	Surfaced        83 nm
			Lat.:     53°17'N	Submerged    32 nm
			Long.:  32°40'W	Day's run       85 nm
		13.33		Surfaced for a navigation fix.
		13.35		Dived.
		16.10	W 3, Sea 3, Cumulus, 6/10, Vis. 6 nm, 1017 mb	Surfaced for a navigation fix.
		16.16		Dived.
		18.08		Surfaced for a navigation fix.
		18.11		Dived.  Difference between dead reckoning and actual position after a navigation fix:  73°T, 3.5 nm.
		23.28	AK 8266	Surfaced in the supply square.
		24.08.44	WNW 2-3, Sea 2, 8/10, changing horizon, Vis. 5 nm, 1018 mb
		00.00		Difference between dead reckoning and actual position after a navigation fix:  198°T, 9 nm.
				Improved out position.
		02.08		Dived to listen:  nothing.
		03.07		Surfaced.
		04.00	WNW 2, Sea 2, overcast, changing horizon, Vis. 8-10 nm, very dark, 1018 mb
		04.25		Circled.
		04.40		Afterwards back and forth in position.  With flashing light Recognition Signals sent in each sector.
		05.31		Dived to listen.
		07.00	AK 8266	Nothing, surfaced.
			W 2-3, Sea 2, overcast, Vis. 25 nm, 1018 mb
		07.35		Morning twilight.
		08.11		Dived.  Stopped on a layer at depth 48 meters.
				Only light pumping is necessary.
		12.00	AK 8266	Surfaced        45 nm
			Lat.:     53°15'N	Submerged    18 nm
			Long.:  32°35'W	Day's run       63 nm
		13.48		Surfaced for a navigation fix.
		13.51		Dived.
		16.07		Surfaced for a navigation fix.
		16.10		Dived.
		18.01		Surfaced.

	Sun and Moon Data 22.08.44
	Sun and Moon Data 23.08.44
	Sun and Moon Data 24.08.44

	- 52 -
		continued
		24.08.44	Southeast of Greenland
		18.04		Dived.  Difference between dead reckoning and actual position after a navigation fix:  50°T, 3 nm.
		23.18	W 2, Sea 2, overcast, Vis. 3 nm, 1022 mb	Surfaced.  "U-Bode" in sight bearing 84°T, 3 nm away, faintly distinguished on the haze.
		23.38		Recognition Signals exchanged.  I ran to his port side and gave him my intentions and suggestions by megaphone.
		25.08.44
		00.20	AK 8266	Came to course 90° and both E-motors 70 RPM.
		00.40	W 2, Sea 2, overcast, ground fog, 1022 mb	Meanwhile established a sending line and sent the First Watch Officer over in the rubber boat to clarify the important questions and as a guide in case of difficulties.  On the rubber boat carried over a working line and backed up the hose with it.  Hose length 105 meters, line length 80 meters.  Additionally a 2nd sending line for the working line to transfer provisions to bring back; unfortunately it turned out that despite this even a very small hose excess continually caused strong kinking in the hose to occur, tanking in and removing another 15 meters of hose length was necessary.  Then finally came fuel, initially in small quantiles, later with an hourly average of 6-7 cbm.  Because Bode only went to sea with an invasion outfitting, 12 weeks provisions was thought to be sufficient, it looked very poor for provisions.  But we still get something, so that I can now get along up to 5 weeks with the strongest stretching and get to Kiel without having to see a Norwegian base.
		04.00	AK 8345
			W 1, Sea 1, light Swell, ground fog, 1022 mb
		07.20		Oil pumping secured.  Took over 25 cbm.  Also this quantity is enough for 35 days with an average day's run of 60 nm.
		07.52		Connection disestablished, First Watch Officer taken back, unfortunately without any important experiences concerning the transit to Trondheim because U-Bode had snorkeled for 15 days.
		08.00	AK 8346	U-Bode out of sight.
		08.27	W 1, Sea 1, light Swell, clearing a bit	Dived.
		12.00	AK 8352	Surfaced        37.0 nm
			Lat.:     53°23'N	Submerged    19.5 nm
			Long.:  31°48'W	Day's run       56.5 nm
		20.00	AK 8329
		26.08.44
		00.16	AK 8334	Surfaced.
			W 1, Sea 1, Swell, overcast, rain showers, Vis, 2000 meters, light haze, 1022 mb
		04.00	AK 6749
			Clearing, marine phosphorescence
		07.25	AK 6761	Dived.
			1021 mb, otherwise unchanged
		12.00	AK AK 6738	Surfaced        71 nm
			Lat.:     54°23'N	Submerged    23 nm
			Long.:  29°44'W	Day's run       94 nm

	Sun and Moon Data 24.08.44
	Sun and Moon Data 25.08.44
	Sun and Moon Data 26.08.44

	- 53 -
		continued
		26.08.44	Southeast of Greenland
		20.00	AK 6811
		27.08.44
		00.21	AK 6578	Surfaced.
		01.32	NW 1, Sea 1, Swell, Altocumulus, 8/10, Vis. 2500-3000 meters, 1022 mb	I attempt with both diesels to determine possible shaft damage to the starboard shaft, because the starboard diesel cannot be run at more then 380 RPM without reaching the exhaust gas temperature limit.  Trials on the surface finished.
		02.05
		04.00	AK 6556	Results:  Possible damage to the shaft part between the tail shaft and the propeller.
			Freshening to 2, Vis. deteriorating
		07.27		Dived.
		08.15  )		Second determination of the shaft damage with both E-motors run at AK.  Port shaft and motor reach 285 RPM, the starboard shaft reaches only 250 RPM, therefore the damage doesn't lie there, as initially suspected in the diesel rather than in the tail shaft.
		08.20  )
		12.00	AK 6613	Surfaced        66 nm
			Lat.:     55°26'N	Submerged    32 nm
			Long.:  27°37'W	Day's run       98 nm
		20.00	AK 6388
		28.08.44
		00.15	AK 6386	Surfaced.
			NW 3, Sea 3, short Swell, overcast, Vis. 2500-3000 meters, 1022 mb
		04.00	AL 4129
			Freshening, Cumulonimbus, 1020 mb, light marine phosphorescence
		07.04	AL 4123	Dived.
			Unchanged, 1017 mb
		12.00	AK 1989	Surfaced        66.0 nm
			Lat.:     56°27'N	Submerged    34.0 nm
			Long.:  25°25'W	Day's run      100.0 nm
		20.00	AL 1992
		29.08.44
		00.23	AL 1969	Surfaced.
			W 4, Sea 4, overcast, Altocumulus, showers, Vis. changing up to 2500 meters, 1012 mb
		04.00	AL 0127
			1009 mb
		05.12	AL 0125	A bright yellowish light bearing 140°T at about 30° high, which shifted ahead and fell.  In the binoculars another dull red light close to it, identified as an aircraft and because it was recognized as flying off, crash dived, depth A +10 meters.
		12.00	AL 1889	Surfaced        47 nm
			Lat.:     57°17'N	Submerged    32 nm
			Long.:  23°34'W	Day's run       79 nm

	Sun and Moon Data 26.08.44
	Sun and Moon Data 27.08.44
	Sun and Moon Data 28.08.44
	Sun and Moon Data 29.08.44

	- 54 -
		continued
		29.08.44	South of Iceland
		20.00	AL 1894
		30.08.44
		00.33	AL 1891	Surfaced.
			W 4, Sea 4-5, showers, Cumulonimbus-Altocumulus, 9/10, Vis. 2000 meters, 996 mb
		03.11	AL 2714	Dived.
		04.46	NWbyN 3, Sea 4, Cumulonimbus, 6/10, showers, Vis. 2500 meters, 995 mb	Surfaced.
		05.25		Difference between dead reckoning and actual position after a navigation fix:  252°T, 19 nm.
		06.00	AL 1832	Dived.
		12.00	AL 1698	Surfaced        54.5 nm
			Lat.:     58°14'N	Submerged    26.0 nm
			Long.:  23°08'W	Day's run       70.5 nm
		12.35		Sound bearing in 240°T.
		15.28		Recognized as diesel 108 RPM in 285°T.
		18.19		Diesel in 5°T, Volume 3.
		18.30		Speed change to 90 RPM, grew fainter.
		19.45		Last sound bearing in 30°T, might be a Swede.
		20.00	AL 1696
		31.08.44
		00.14	AL 2571	Surfaced.
		00.49	N 2, Sea 2, Cumulus, 4/10, Vis. 4000 meters, 1004 mb, moon	Dived.
		03.37	AL 2548	Surfaced.
			NNE 2-3, Sea 2, Vis. 3000 meters, 1005 mb, Northern Lights
		04.10		Difference between dead reckoning and actual position after a navigation fix:  0°T, 32 nm.
		05.33	AL 2381	Dived.
		08.00	AL 2381
		12.00	AL 2357	Surfaced        25.5 nm
			Lat.:     59°27'N	Submerged    26.0 nm
			Long.:  22°07'W	Day's run       51.5 nm
		20.00	AL 2355
		01.09.44
		00.20	AL 2353	Surfaced.
			NE 3, Sea 3, Cumulus, 7/10, Vis. 2000 meters, Vis. 1018 mb
		01.30	AL 2337	Dived.
		04.00	AL 2348	Surfaced.
		06.00	AL 2411	Dived.
		12.00	AL 2278	Surfaced        27.5 nm
			Lat.:     60°02'N	Submerged    25.0 nm
			Long.:  20°50'W	Day's run       52.5 nm
		20.00	AL 2276
		02.09.44
		00.22	AL 2284	Surfaced.
			E 2, Sea 2, Cumulus, 4/10, Vis. 4000 meters, 1024 mb, full moon
		00.23		Crash dive for light on the horizon.
		00.40		In the periscope recognized as an illuminated steamer.  Diesel sound bearing, steamer slowly comes closer.
		01.16		Swede "DAGMAR SALEN", well illuminated, course 60°, speed 8-9 knots.

	Sun and Moon Data 29.08.44
	Sun and Moon Data 30.08.44
	Sun and Moon Data 31.08.44
	Sun and Moon Data 01.09.44
	Sun and Moon Data 02.09.44

	- 55 -
		continued
		02.09.44	South of Iceland
		01.56	AL 2284	Surfaced, after I had some distance from the highly visible Swede, because such a "Christmas tree" usually attracts everything, especially aircraft.
		02.15		Difference between dead reckoning and actual position after a navigation fix:  210°T, 10 nm.
		03.27	AL 2282	Dived.
		04.44		Surfaced.
		05.52	AL 2259	Dived.
		12.00	AL 2264	Surfaced        25.5 nm
			Lat.:     60°28'N	Submerged    26.5 nm
			Long.:  19°50'W	Day's run       52.0 nm
		20.00	AL 2262
		03.09.44
		00.20	AL 2239	Surfaced.
			E 2-3, Sea 2, 8/10, Cumulus-Cirrus, Vis. up to 3000 meters, 1022 mb
		01.50		Dived.
		04.56	AL 3112	Surfaced.
			1020 mb, decreasing cloudiness
		05.58	AE 7984	Dived.
		12.00	AE 7985	Surfaced        25.5 nm
			Lat.:     61°05'N	Submerged    27.0 nm
			Long.:  18°35'W	Day's run       52.5 nm
		20.00	SE 7959
		04.09.44
		00.15	AE 7964	Surfaced.
			E 3, Sea 1, Cumulus, 8/10, Vis. 2500 meters, 1022 mb
		02.08		Difference between dead reckoning and actual position after a navigation fix:  313°T, 20 nm.
		02.48	AE 7697	Dived.
		05.03	1022 mb	Surfaced.
		05.17		Incoming Radio Message 0254/4/165:  Tillessen transmitted on 36 meters at 02.38 with Volume 4:  Fuel desperate, when can I expect supply.  My position is AK 10.
				In that case he does not seem to have deciphered the Officer-Only Radio Message to us and him properly, but he did not report after the message from Ohlsen.  Strange, if he felt forgotten.  It was unthinkable that he would reach Trondheim with his fuel.
		05.55	AE 7692	Dived.
		12.00	AE 7693	Surfaced        36 nm
			Lat.:     62°04'N	Submerged    26 nm
			Long.:  17°38'W	Day's run       62 nm
		12.24		1 medium-loud aircraft bomb.
		20.00	AE 8447
		05.09.44
		00.07	AE 8445	Surfaced.
			NE 1, light Swell, nearly cloudless, Vis. 3 nm, strong Northern Lights, 1023 mb
		01.32	AE 8433	Dived.
		05.02	AE 8451	Surfaced.
			Increasing cloudiness, 1021 mb

	Sun and Moon Data 02.09.44
	Sun and Moon Data 03.09.44
	Sun and Moon Data 04.09.44
	Sun and Moon Data 05.09.44

	- 56 -
		continued
		05.09.44	South of Iceland
		05.15		Difference between dead reckoning and actual position after a navigation fix:  267°T, 12 nm.
		05.48	AE 8419	Dived
		12.00	AE 8424	Surfaced        21 nm
			Lat.:     62°32'N	Submerged    28 nm
			Long.:  16°34'W	Day's run       49 nm
		20.00	AE 8422
		06.09.44
		00.03	AE 8423	Surfaced.
		01.00	NE 1, Sea 1, Altocumulus, 4/10, Vis. 3500 meters, 1016 mb, freshening	Difference between dead reckoning and actual position after a navigation fix:  2807°T, 8 nm.
		01.03	AE 8189	Naxos detection from starboard abeam, from 140°T.  Dives after 2 impulses.
		02.03		At Very Long Wavelength reception depth sound bearings from 260°T, growing louder, diesel 90 RPM.  Every 4 seconds Asdic impulse.  Slowly drew deeper and let it draw past to starboard.
		02.30		No further sound bearings
		02.34		New diesel from 315°T, 90 RPM, quickly growing louder, Asdic irregularly.  Let settle slowly to depth A +10 meters.  Volume 4.  After each second Asdic impulse something like a purr.
		02.42		Diesel passed very close, so that propellers were audible with the naked ear.  Sound bearing jumped from 20° to 220°T.  After passing no further Asdic impulses.  Diesel shifted now slowly to 145°T.
		02.53		Boat has fallen to depth A +40 meters.  Last sound bearing in 140°T as with the first diesel.  Probably a search group, looking for snorkelers.  If with aircraft?  I don't think so.  This will show on surfacing!
		04.59	AE 8194	Surfaced.
			NE 2-3, Sea 2, 5/10, 1017 mb	Nothing to see, also no detections.
		06.03	AE 8192	Battery is full again, dived.
		12.00	AE 8193	Surfaced        21.5 nm
			Lat.:     62°57'N	Submerged    28.0 nm
			Long.:  15°17'W	Day's run       49.5 nm
				The weather period is as unfavorable as could be imagined, bright starry clear, cloudless, no Sea State, moon and no lows in sight, because a stationary high must lie over northern Sweden.  Also unfortunately the current here is against us, however we have time.  Until now always a full battery and enough air.
		16.50  )	AE 8271	Each 8 faint depth charges on the starboard side.
		16.53  )
		17.25  )		In short intervals individual and multiple up to 8 depth charges, faint also on the starboard side.
		17.48  )
		19.09  )		16 faint depth charges on the starboard side.
		19.17  )
				There they seem to have had one with a roll.
		20.00	AE 8247

	Sun and Moon Data 05.09.44
	Sun and Moon Data 06.09.44

	- 57 -
		07.09.44	South of Iceland
		00.04	AE 8248	Surfaced.
			NNW 1, Sea 1, 6/10, Vis. 3000 meters, 1022 mb, moon rising
		03.01	AE 8229	Dived.
		04.52	AE 8229	Surfaced.
			NNE 3, Sea 2-3, nearly overcast, hail showers, 1020 mb, Vis. changing
		05.52	AE 8235	Dived.
		12.00	AE 8233	Surfaced        44 nm
			Lat.:     63°31'N	Submerged    26 nm
			Long.:  13°12'W	Day's run       70 nm
		20.00	AE 8311
		08.09.44
		00.00	AE 5978	Surfaced.
		00.10	N 2, Sea 1, Swell, Altocumulus, 4/10, Vis. 4500 meters, 1027 mb, moon	Difference between dead reckoning and actual position after a navigation fix:  270°T, 8 nm.
		01.58	AE 5973	Dived.
		04.34	NE 2, Sea 1, Swell, Altocumulus, 3/10, Vis. 4500 meters, 1026 mb	Surfaced.
		05.34	AE 5958	Dived.
		12.00	AE 5959	Surfaced        31.5 nm
			Lat.:     63°58'N	Submerged    25.0 nm
			Long.:  11°43'W	Day's run       56.5 nm
		20.00	AE 5964
		23.50	AE 5962	Surfaced.
		23.57	NE 1, Swell 1, 2/10, Vis. 3000-5000 meters, 1027 mb	Incoming ßß completely garbled, not heard by Control; because not understandable, did not repeat.
		09.09.44
		01.05		Difference between dead reckoning and actual position after a navigation fix:  192°T, 7 nm.
		01.46	AE 6744	Dived.
		04.33	AE 6745	Surfaced.
			SW 1, Swell 1, Cumulostratus, Vis, 6000 meters, freshening, 1025 mb
		05.41	AE 6734	Dived.
		12.00	AE 6755	Surfaced        33.5 nm
			Lat.:     64°02'N	Submerged    25.0 nm
			Long.:  09°04'W	Day's run       58.5 nm
		20.00	AE 6756
		23.35	AE 6784	Surfaced.
		10.09.44	SE 1, Swell 1, overcast, Alto- Cirrostratus, Vis, 2000 meters, 1021 mb
		02.02	AE 6845	Dived.
		04.16	E 0-1, Swell, 9/10, hazy, Vis. 2000 meters, 1021 mb	Surfaced.
		05.43	AE 6852	Dived.
		12.00	AE 6853	Surfaced        46 nm
			Lat.:     64°09'N	Submerged    25 nm
			Long.:  07°01'W	Day's run       71 nm

	Sun and Moon Data 07.09.44
	Sun and Moon Data 08.09.44
	Sun and Moon Data 09.09.44
	Sun and Moon Data 10.09.44

	- 58 -
		continued
		10.09.44	North of the Faroes
		20.00	AE 6862
		23.35	AE 6863	Surfaced.
		23.46	SW 0-1, Swell 1, 2/10, haze, Vis. 4000 meters, 1026 mb	Naxos detection from 125°T, dived.
		11.09.44
		00.45	AE 6863	Surfaced.
		00.46	Ground fog, 200-400 meters high, Vis. 3000-5000 meters	Naxos detection from 0°T.
		02.23		Surfaced.
		02.25		Naxos detection from 180°T, turned away.  Repeated after 3 minutes at Volume 2-3, dived.
		02.28
		03.01		Surfaced.
		03.58	AE 6942	Naxos detection from 180°T, dived.
		04.40	Vis. was somewhat better	Surfaced.
		05.17	AE 6943	Naxos detection, louder from 160°T, dived.
		12.00	AE 6927	Surfaced        21 nm
			Lat.:     64°12'N	Submerged    27 nm
			Long.:  05°19'W	Day's run       48 nm
		20.00	AE 6929
		23.31	AE 6929	Surfaced.
		23.34	SW 2, Swell 1, overcast, Vis. 3000 meters, 1031 mb	Naxos detection, growing louder, shifting from 70°-30°T, dived.
		12.09.44	In general, it may be said of Very Long Wavelength Program Times, that these should be adhered to by the transmitting site, since any unnecessary longer stay at receiving depth represents an increased discharge of the battery.
		00.22	AE 6937	Surfaced.
		00.27		Naxos detection from 230°T, Volume 0-1, was louder, the irregular impulses com at a second interval, At Volume 2-3, dived
		00.28
		00.31
		01.53	AE 6937	Surfaced.  6-minute detection observed.  Remained in the same direction and was louder, at Volume 3 dived.
		02.04
		02.48		Incoming Radio Message 2011/11/108:  1.)  Lauterbach:  Go to Bergen, on 12 September at 08.00 hours switch to Coastal Circuit.
				2.)  Mühlendahl. . . .
		03.04	Light marine phosphorescence	Immediately after surfacing again detection with only slight shift to the right, Volume 0-1, impulses are irregular.  After 4 minutes no detection, then occurring on the old bearing.  Detection observed by Fliege [Wanze antenna] continually until the boat could no longer turn fast enough with hard rudder.  The possibility that the aircraft flew past I believe is mot likely, because then the detection occurred in the opposite sector to the right.  At Volume 2-3 dived.
		03.13  )
		03.17  )
		03.22	AE 6938
				Radar gear must be worked with reduced power.
		04.30	SE 6938	Surfaced.  Immediate detection from 0°T.  Impulses 2 seconds, Volume 1, then increasing to 2 with impulses 1 second, at Volume 3 dived.
		04.33
				Economical operation [intermittant operation of radar] is apparently no longer common, because of snorkeling.

	Sun and Moon Data 10.09.44
	Sun and Moon Data 11.09.44
	Sun and Moon Data 12.09.44

	- 59 -
		continued
		12.09.44	North of the Faroes
		12.00	AE 6963	Surfaced          5 nm
			Lat.:     64°08'N	Submerged    29 nm
			Long.:  04°06'W	Day's run       34 nm
		20.00	AF 4744
			Our battery is in a very bad condition, according to the E-meter readings, only half of the discharge value calculated from the table on the basis of acidity and density is discharged.  This provides no reassurance when traveling through air endangered squares.
		13.09.44
		00.14	AF 4747	Surfaced.
			SSW 2, Sea 1-2, Altostratus, 2/10, Vis. 2500 meters, 1026 mb	From 00.17 hours until diving continual detection with Volume from 0-1, changing from the direction 120-180°T, always turned the bow towards, by this the radar carrier flies back and forth in this sector.
		00.21		Limit bearings with Fliege lie at 90°T, after 6 minutes, then repeated and shifted to 170°T, irregular impulses only very faint shifting back to 130°T and then occurring from 190°T.  Despite immediate turning turning after, grew louder and irregular impulses 1 second.
		00.40
		00.50
		01.02
		01.07	AF 4772	At Volume 2-3 dived.
		02.18	AF 4772	Surfaced.
		02.31	Moon faint in ground haze as a crescent in 35°T.	Faint Naxos detection from 180°T, not heard momentarily, then from 210°T and from 170°T with changing Volume, probably 2 locator's, because impulses were irregular and not occurring from the same direction.
		02.34
		02.37		At Volume 2 dived.
		04.00	AF 4775	Difference between dead reckoning and actual position after a navigation fix:  90°T, 19 nm.  Surfaced.
			Unchanged, moon crescent brighter
		04.12		Detection barely audible from 120°T, shifted growing louder over the sectors up to 210°T.  Impulses with growing Volume, 1 second, narrow maximum.
		04.23		2nd locator.  Possibly the 2 gear are in one aircraft.  Continually turned towards, 210°T.
		04.23
		04.26	AF 4785	Dived at Volume 2.
		05.12		5 very bright, quite close, quickly following one another, detonations ahead to starboard.
		12.00	AF 4789	Surfaced        15.5 nm
			Lat.:     63°37'N	Submerged    27.0 nm
			Long.:  02°32'W	Day's run       42.5 nm
		20.00	AF 7132
		23.36	AF 7132	Surfaced.  Immediately on surfacing from 100°T Naxos detection with Volume 1.  Taken ahead.  Shifted slowly with increasing strength to the NW.
			S 2, Sea 2, low Stratus, 7/10, Vis. 2000 meters, 1032 mb
		23.45		Two locators from the same sector.  One locator was louder.
		23.48		Dived at Volume 3.
		14.09.44
		01.23	AF 7136	Surfaced.  Immediate detection astern from 30°T.
		01.33	Freshening	Moved off.  2nd locator comes in 110°T.

	Sun and Moon Data 12.09.44
	Sun and Moon Data 13.09.44
	Sun and Moon Data 14.09.44

	- 60 -
		continued
		14.09.44	North of the Shetlands	Volume 1-2, tone level 900 Hz, whereas the 1st locator was at 600 Hz and in the meantime the 1st increased in Volume to 3, dived.
		01.34
		01.35
		03.47	AF 7136	Surfaced.
		03.48	S 2, Sea 2, 8/10, Vis. 2500 meters, 1032 mb	Detection from 350°T, moved off.  Detection up to Volume 1-2.  2nd locator from 310°T (about Volume 1), thereafter the 1st locator could not be heard.  Momentarily no detections
		03.51
		04.25		Now and then again heard at Volume 1-2.
		04.36		Then a new 3rd locator and 1st locator both from the NW sector, slowly growing louder.  Dived at Volume 3 from the 3rd locator.
		04.51	AF 7217
				Duration of the different times heard:  1st gear 11 minutes, 2nd gear 17 minutes, 3rd gear 25 minutes.  The times overlapped.  The impulses did not come from the same direction, so that with the 3rd radar carrier it had to be assumed it was moving back and forth in position, by which the increase and decreasing in Volume was explained.  Possibly circling flying in a carousel. Hopefully I have gotten away from this "club", which I had with me yesterday and and finally left behind today.  I do not think I was detected with certainty.  It is possible that the surveillance has indications of my presence.  They are not sure about the course and to where I am going.  The signs suggest that the Englander performs barrier flights with course SW-NE and it can easily monitor the two routes to Trondheim and Bergen by means of fewer consecutive aircraft.  Returning approximately every half hour.  Still 250 nm to Hellesøy!
		12.00	AF 7242	Surfaced        15.5 nm
			Lat.:     63°13'N	Submerged    27.0 nm
			Long.:  01°18'W	Day's run       42.5 nm
		20.00	AF 7249
		22.35	AF 7257	Surfaced.  The dubious area seems to be over.  Well it is not the Bay of Biscay.  So we weren't detected!
		15.09.44	SSE 2-3, Sea 3, overcast, Cumulonimbus, Vis. 2000 meters, 1023 mb
		04.00	AF 7646	Set off briskly.
		05.32	AF 7682	Dived.
		12.00	AF 7686	Surfaced        92 nm
			Lat.:     61°57'N	Submerged    26 nm
			Long.:  02°00'E	Day's run       118 nm
		20.00	AF 7934

	Sun and Moon Data 14.09.44
	Sun and Moon Data 15.09.44

	- 61 -
		continued
		15.09.44	West of Norway
		17.40		Incoming Radio Message:  0834/15/90:  1)  Bode, Steinmetz, Lauterbach, Engel, Stock:  Go to Bergen.
				2)  etc.  . . .
		20.00	AF 7932
		22.06	AF 7932	Surfaced.
		16.09.44
		00.28	SSE 4, Sea 4, overcast, showers, Vis. 1000 meters, 1020 mb, freshening	Outgoing ßß:  Position 30 hours off escort intake point.  Navigation uncertain, request Radio Navigation support.
				"U-539"
				Short Signal was sent on alternate frequency on 54 meters, however not heard or acknowledged.
		04.00	AF 8788	From soundings the boat is a bit north and behind.
			SSE 5, Sea 5, light marine phosphorescence	From the breakers from ahead the Fliege breaks off from its base.  Continued on with finger antenna.  From the seas parts of the conning tower cladding were torn away.
		04.29		Outgoing ßß:  Position 24 hours off escort intake point, my navigation is uncertain, request Radio Navigation support at the beginning of darkness.    "U-539"
				Sent on Coastal and repeated correctly.
		05.17	AN 2411	Dived.
		12.00	AN 2411	Surfaced        75 nm
			Lat.:     60°41'N	Submerged    30 nm
			Long.:  04°20'E	Day's run      105 nm
		16.00	AN 2442
		17.12		Incoming Radio Message 1314/16/9:  From 11. U.-Flottille.
				To Radio Message 0429/16/4:  Which boat is off which objective point?  Send again.
				That's great!  I wonder where that went astray.  Also perhaps something could have been asked a little bit earlier.
		22.03	AN 2445	Surfaced.
		22.25	S 2, Sea 1, 8/10, Vis. 2000 meters, 1022 mb	Outgoing Radio Message 2202/16/21:  Lauterbach to 11. U-Flottille.  Position 8 hours from Hellesøy, request Bergen North.
				If something is still incomprehensible, I do not understand.
		2x.x8		Incoming Radio Message 1743/16/15:  11. U-Flottille to Lauterbach:  Escort positioned 17 September 06.00 hours Hellesøy.  Radio Beacon Group Bergen North runs from 02.00 to 05.00 hours.
		23.50		Difference between dead reckoning and actual position after a navigation fix:  320°T, 26 nm.
		17.09.44
		00.06	AN 2339	Dived, until the radio beacons run.
		01.55	AN 2336	Surfaced.
				Bearings from the radio beacons confirm my position.
		04.00	AN 2415	Visual bearing from Holmengra.
		06.02	S 1, Sea 1, overcast, Vis. 1500 meters, 1022 mb	After a few difficulties due to bad visibility and haze I am abeam Hellesøy Lighthouse.
		06.23		Taken in convoy and proceeded through the inner Hellesøy Fjord.
		09.48	Bergen	Made fast Bergen - Marineholm.
		12.00		Surfaced        79 nm
				Submerged    24 nm
				Day's run      103 nm

	Sun and Moon Data 15.09.44
	Sun and Moon Data 16.09.44
	Sun and Moon Data 17.09.44

	- 62 -
		continued
		17.09.44		Reported to the Chef der 11. U-Flottille.
				Report at F.d.U. West.
		11.30		Took over fresh provisions.
		14.45		Muster by F.d.U. West and Award Ceremony.
		15.44		Cast off to continue transit to Germany.
		16.15		Fired the 3.7 cm.
		16.34		Convoy intake with U-716 (Dunkelberg).
				Transit to Stavanger, on archipelago route
		18.09.44
		00.43		Passed Haugesund.
		05.13		Made fast Stavanger at Coal Pier.
		08.45		Boat shifted to Slaughterhouse Pier.
		12.00		Day's run:  Surfaced 108 nm
		16.00		Area conference at Chef 17. U-Jagd.
		17.26		Cast off Stavanger.
		17.49		Åmøyfjorden dived.  Trim test.
		18.08		Surfaced.
		18.17		Convoy intake by escort U-Jäger 1713 and 1711.  Continued transit to Kristiansand South.
		19.09.44
		00.00	SE 1, Sea 1, Vis. 2500 meters, 1036 mb	Passed Signal Station released from convoy.
		06.50		Made fast Narvik U-boat Base.   [Marviken?]
				Surfaced      126 nm
				Submerged       1 nm
				Day's run      127 nm
		14.00		Escort conference at Seekommandant.
		20.01		Cast off.
		20.00		Switched to Baltic Security Circuit.
		20.57		Taken in convoy.  Transit to Kiel.
		21.05		Outgoing Radio Message 2012/21:  To 5. U-Flottille:  U-716 and U-539 departed Kristiansand South for Kiel.  Radio Circuit Baltic Security Circuit.   from Lauterbach.
				In convoy transit through the Skagerrak.
		20.09.44
		00.00	EbyN 1-2, Sea 1, 8/10, Vis. 2500 meters, 1030 mb
		09.07		Incoming Radio Message 0827/34:  U-539 (Lauterbach) U-716 (Dunkelberg) from 5. U-Flottille:
			Lat.:     57°30'N
			Long.:  11°30'E	U-539 run into Flensburg.
				U-716 run into Kiel.
		12.00		Day's run:  Surfaced 149 nm
		12.15		Outer escort change
		19.00	Abeam Anholt.
		21.09.44	EbyN 1, Sea 1, Altocumulus, 3/10, Vis. 6 nm, 1030 mb	Transit through the Great Belt.
		10.43		Incoming Radio Message 1014/62:  5. U-Flottille to U-539 (Lauterbach) U-716 (Dunkelberg).
				Immediately confirm Serial No. 34 and 52.
				Outgoing Radio Message 1058/63:  Lauterbach to 5. U-Flottille.  Arrival Flensburg 22 September 09.30 hours.  Serial No. 34 and 52 are hereby confirmed.
		12.00		Day's run:  Surfaced 17x nm

	Sun and Moon Data 17.09.44
	Sun and Moon Data 18.09.44
	Sun and Moon Data 19.09.44
	Sun and Moon Data 20.09.44
	Sun and Moon Data 21.09.44

	- 63 -
		continued
		21.09.44
		15.20		Incoming Radio Message: 1451/68:  U-539 (Lauterbach-Emden).   In recognition of your achievements in the name of the Führer I award you the German Cross in Gold.
				Ob.d.M. and B.d.U.
				Congratulations 5. and 33. U-Flottille.
		17.00	Abeam Kjelsnor
		20.43	E 1, Sea 1, 7/10, Vis. 4000 meters, 1030 mb, 18 meters water	Anchored in Anchorage G.
		20.53		Weighed anchor and moved further.
		21.21		Anchored in Anchorage G.
		22.09.44
		05.30	E 1, Sea 1, 7/10, misty, 1024 mb	Weighed anchor, on prescribed route to Flensburg.
		09.30		Made fast Flensburg U-boat Base.
				Day's run:  Surfaced 114 nm
				On board, 22 September 1944.
				Kaptlt. and Kmdt.

	Sun and Moon Data 21.09.44
	Sun and Moon Data 22.09.44

 

	Enclosures to U-539's KTB - click on the text at left to proceed to the document
Radio	Excerpt of the Radio Log

 

	Comments of the Befehlshabers der Unterseeboote
	on the K.T.B. of "U-539" (Lauterbach-Emden) from 22.3.022.9.44
	3rd patrol without snorkel demanded increased stress and strain especially for the transit through the Bay of Biscay.  Carried off a patrol in a traffic rich operations area of the Caribbean as in the "old times".   In spite of the enemy defenses the boat operated with good luck, ability and excellent commitment.  The deserved successes were realized.  The outstanding performance was recognized by the award of the German Cross in Gold.
	On the K.T.B. guidance: too voluminous.  Be more concise.
	Recognized success:  1 steamer 3000 GRT sunk   1 tanker 5498    "    "   ("HOLLYWOOD")       1 tanker 9977    " sinking accepted   ("BRITTANNIA")       1 tanker 9000    " torpedoed   1 tanker 10000  " torpedoed   ("MOBILOIL")
		For the Befehlshabers der Unterseeboote
		- The Chief of the Operations Department -

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