U-504 - 3rd War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed	Date	Arrived	Date	Days at Sea
Lorient	2 May 1942	Lorient	7 July 1942	67

 

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
29 May 42	21.37	18°27'N, 81°33'W	ALLISTER	1,597	British
8 Jun 42	06.59	18°27'N, 85°09'W	TELA	3,901	Honduran
8 Jun 42	18.07 - 18.35	18°45'N, 85°09'W	ROSENBORG	1,512	British
11 Jun 42	02.10 - 03.31	17°51'N, 84°33'W	CRIJNSSEN	4,282	Netherlander
11 Jun 42	02.10 - 03.31	18°09'N, 84°33'W	AMERICAN	4,846	American
14 Jun 42	19.12	17°33'N, 84°15'W	REGENT	3,280	Latvian
			Total = 19,418
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.

---

				K  r  i  e  g  s  t  a  g  e  b  u  c  h
				=======================
				of the Unterseebootes  "U  504"
				3rd Patrol
			Beginning:  1.4.42                                                  Ending:       7.7.1942
			Times:	D.G.Z.
			All Naval Squares.
			Kommandant:	Korv.Kapt.  Poske.
			Distribution:	2 x O.K.M.
				1 x B.d.U.
				1 x 2.A.d.Uboote.
				1 x 2.Uflottille.
				© U-boat Archive 2023 - all rights reserved

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

	- 1 -
		01.04. - 02.05.42	Lorient	Shipyard period and new outfitting of the boat.
		02.05.42	Lorient
		20.00		Cast off, put to sea for patrol.
		20.48	Off the Citadel	Test dive in the harbor.
		20.58	W 1-2, Sea 1, 2/10, Vis. good	Surfaced.
		21.05		Convoy intake (Sperrbrecher).
		21.40		Escort service ended (Point L 2).
		21.45		On course 215°, speed 16.5 knots.
		03.05.42
		00.00	BF 5530
			W 1-2, Sea 1, 0/10, Vis. good
		04.00	BF 5810
			W 1-2, Sea 1, 0/10, Vis. good, light Swell, moonshine
		06.00	BF 5840	Dived to proceed submerged, course 240°, 2 knots.
		08.00	BF 5760
		12.00	BF 5760	Day's run:  Surfaced 124 nm, Submerged 11 nm
		16.00	BF 5790
		18.00	BF 5790	Came to Great Circle course 264°, speed 2 knots.
		22.00	BF 5770	Surfaced.  Course 264°, speed 14.5 knots.
			W 1-2, Sea 1, 0/10, Vis. very good, light Swell, moonshine
		04.05.42
		00.00	BF 5770
			W 1, Sea 0-1, 0/10, Vis. very good, moonshine
		04.00	BF 4970
			W 1, Sea 0-1, 1/10, Vis. very good
		06.32	BF 7320	Dived to proceed submerged, course 264°, speed 2 knots.
		08.00	BF 7310	Came to course 262°.
		12.00	BF 7230	Day's run:  Surfaced 122 nm, Submerged 27 nm
		16.00	BF 7230
		20.00	BF 7230
		22.30	BF 7220	Surfaced.  On surfacing 3-4 vessels . . .
			W 3-4, Sea 2-3, 0/10, Vis. good

	Sun and Moon Data 02.05.42
	Sun and Moon Data 03.05.42
	Sun and Moon Data 04.05.42

	- 2 -
		continued
		04.05.42		with set lights bearing 0°T, about 12 nm away on southerly course.
				Avoided on course 200°, speed 14.5 knots.
		23.48	BF 7210	Again came to course 262°.
		05.05.42
		00.00	BF 7210
			W 3, Sea 2, 0/10, Vis. good
		04.00	BF 7110
			SE 2, Sea 3, 0/10, Vis. good, long Swell
		06.37	BE 9350	Navigation fox by Atair, Schedir, Arkturus, North Star, 150°T, 15 nm
		07.00	BE 9350	New course 255°, transit speed diesel-electric 7.5 knots.
		08.00	BE 9320
			ESE 3, Sea 3, 0/10, Vis. very good, long Swell
		12.00	BE 9260	Day's run:  Surfaced 173 nm, Submerged 21 nm
			SSE 4, Sea 3-4, 0/10, Vis. very good
		16.00	BE 9270
			SSE 4, Sea 3-4, 0/10, Vis. very good
		19.10	BE 9270	Crash dive for training, damage control exercises.
		20.00	BE 9190
		21.10	BE 9180	Surfaced.  Course 252°, speed 7 knots.
			SSW 4, Sea 3-4, 10/10, Vis. medium
		06.05.42
		00.00	BE 9180
			SSE 4, Sea 3-4, 91/0, Vis. good
		04.00	BE 9110
			SSW 4, Sea 3, 6/10, Vis. good
		05.16	BE 8630	Short Signal:  6 May 14° longitude.    "U-504".
		05.37	BF 8630	Incoming Radio Message 0526/6/51:  Poske reported by Short Signal 14°.
		08.00	BE 8630
			S 4, Sea 2-3, 10/10, Vis. good
		12.00	BE 8640	Day's run:  Surfaced 155 nm, Submerged 8 nm
			S 4, Sea 2-3, 10/10, Vis. good
		16.00	BE 8560
			SSW 3, Sea 3, 2/10, Vis. very good

	Sun and Moon Data 04.05.42
	Sun and Moon Data 05.05.42
	Sun and Moon Data 06.05.42

	- 3 -
		continued
		06.05.42
		19.00	BE 8580	Crash dive, damage control exercises.
		20.00	BE 8580
		20.53	BE 8580	Surfaced.  Course 252°, sped 7 knots.
			S 3, Sea 2, 4/10, Vis good
		07.05.42
		00.00	BD 8570
			S 3, Sea 2, 4/10, Vis. good
		04.00	BE 8620
			S 3, Sea 2, 5/10, Vis. good
		08.00	BE 8710
			SSW 3-4, Sea 3, 7/10, Vis. good
		12.00	BE 7930	Course 252°, speed 7 knots.
			SSW 3, Sea 2-3, 6/10, Vis. good	Day's run:  Surfaced 158 nm, Submerged 4.5 nm
		15.20	BE 7950	Difference between dead reckoning and actual position after a navigation fix by longitude and mid day latitude 90°T, 7 nm.
		16.00	BE 7950
			SSW 3, Sea 2-3, 8/10, Vis. good
		21.24	BE 7970	Radio Message 2030/7/144/256:  Poske, Prätorius, Mohr, Feiler:  tomorrow between 01.00 ahd 05.00 hours send weather report.  Mohr add radiosonde.
		08.05.42
		00.00	BE 7890
			E 2, Sea 1-2, 6/10, Vis. medium
		04.00	CF 1320
			W 1-2, Sea 1, 5/10, Vis. medium
		04.35	CF 1320	Weather Radio Message:  43°N, 23°W, rising, 1009 mb, air +19°C, Cumulus, clear to cloudy, Vis. 10 nm, W 2, W-Swell medium-high.    U-504.
		07.39	CF 1230	Difference between dead reckoning and actual position after a navigation fix by Atair and Arkturus, 10°T, 6 nm.
		08.00	CF 1230
			W 1-2, Sea 1, 8/10, Vis. medium
		12.00	CF 1220	Day's run:  Surfaced 163 nm, Submerged -- nm
			WNW 5, Sea 3, 7/10, Vis. good
		16.00	CF 1210
			W 5-6, Sea 5, 7/10, Vis. good, overcast
		17.22	CE 3360	Crash dive for training, damage control exercises.
		18.26	CE 3360	Surfaced.
			W 5-6, Sea 5-6, 7/10, Vis. good
		18.50	CE 3360	Course 230°, speed 4.5 knots.
		20.00	CE 3360
			W 5-6, Sea 5-6, 6/10, Vis. good, overcast

	Sun and Moon Data 06.05.42
	Sun and Moon Data 07.05.42
	Sun and Moon Data 08.05.42

	- 4 -
		continued
		08.05.42
		22.50	CE 3350	Radio Message 1746/8/153:  Poske, Rostin new objective square is naval square DA 90.  You are reminded of Schacht situation report.
				Based on the situation reports from Schacht and Folkers I intend to head for the ordered square through the Caicos and Windard Passage and the Yucatan Strait.
		09.05.42
		00.00	CE 3350
			WNW 6, Sea 5-6, 5/10, Vis. good
		04.00	CE 3370
			W 6-7, Sea 6, 7/10, Vis. good
		08.00	CE 3530
			NW 7, Sea 6, 3/10, Vis. good
		12.00	CE 3550	Day's run:  Surfaced 110 nm, Submerged 2 nm
			NW 6, Sea 5-6, 3/10, Vis. good
		16.00	CE 3570
			NW 6, Sea 5-6, Vis. good
		20.00	CE 3730	Course 260°, speed 5 knots.
			NW 5, Sea 4-5, 8/10
		10.05.42
		00.00	CE 3720
			NW 5, Sea 4-5, 7/10, Vis. medium
		04.00	CE 2960
			NW 5, Sea 3, 10/10, Vis. medium, long Swell
		08.00	CE 2950
			NW 4, Sea 3-4, 9/10, Vis. medium
		12.00	CE 2940	Day's run:  Surfaced 142 nm
			WSW 5, Sea 4, 9/10, Vis. good
		16.00	CE 2860
			WSW 7, Sea 5-6, 10/10, Vis. good
		17.00	CE 2860	To save fuel on course 300°, speed 2 knots (both E-motors).
		18.30	CE 2860	Course 330°, speed 2 knots.
		20.00	CE 2860
			WSW 7, Sea 5-6, 0/10, Vis. medium, misty

	Sun and Moon Data 08.05.42
	Sun and Moon Data 09.05.42
	Sun and Moon Data 10.05.42

	- 5 -
		11.05.42
		00.00	CE 2860
			W 6, Sea 4-5, 6/10, Vis. medium
		04.00	CE 2860
			W 5, Sea 4-5, 5/10, Vis. medium
		06.00	CE 2860	Course 330° (port E-motors LF ahead).
		08.00	CE 2860
			W 8, Sea 7, 10/10, Vis. medium
		12.00	CE 2860	Day's run:  Surfaced 22 nm, Submerged -- nm
			W 7, Sea 6, 10/10, Vis. medium
		14.12	CE 2860	Due to weather conditions dived to proceed submerged.
				Course 260°, 2.5 knots.
		16.00	CE 2860
		20.00	CE 2860
		21.55	CE 2850	Surfaced, it has abated, course 260°, 6 knots.
			WSW 2-3, Sea 3-4, 10/10, Vis. good
		12.05.42
		00.00	CE 2840
			WNW 2-3, Sea 3-4, 10/10, Vis. good
		04.00	CE 2760
			WNW 3, Sea 3, 10/10, Vis. good, long Swell
		08.00	CE 2750
			SW 3, Sea 2, 10/10, Vis. good
		12.00	CE 1990	Day's run:  Surfaced 118 nm, Submerged 20 nm
			SW 3, Sea 2-3, 9/10, Vis. good
		16.00	CE 1970	Difference between dead reckoning and actual position after a navigation fix by longitude and mid day latitude 255°T, 21 nm.
			SW 3, Sea 2-3, 8/10, Vis. good
		20.00	CE 1890	Course 250°, 6.5 knots.
			SW 4-5, Sea 3-4, 0/10, Vis. good	19.45 hours Radio Message:  1844/12/159/263:
				1)  Schug, Schnee, U-402 and Dieterichs tomorrow between 01.00 and 05.00 hours send weather report.
				2) On 13 May at 08.00 hours Poske switch to Greenland, Zimmermann to Ireland Circuit.
		13.05.42
		00.00	CE 4210
			SW 3-4, Sea 3, 0/10, Vis. good
		04.00	CE 4130
			SW 4, Sea 3, 10/10, Vis. medium
		08.00	CE 4140
			SW 3, Sea 2-3, 10/10, Vis. good
		12.00	CD 6360	Day's run:  Surfaced 142 nm, Submerged -- nm
			W 3, Sea 2-3, 6/10, Vis. good

	Sun and Moon Data 11.05.42
	Sun and Moon Data 12.05.42
	Sun and Moon Data 13.05.42

	- 6 -
		continued
		13.05.42
		15.31	CD 6360	Crash dive for training, damage control exercises.
		16.00	CD 6350
		16.31	CD 6380	Surfaced.
			W 3, Sea 2, 3/10, Vis. good
		20.00	CD 6370
			W 4-5, Sea 3-4, 1/10, Vis. good
		14.05.42
		00.00	CD 6280
			W 5-6, Sea 4-5, 3/10, Vis. good
		04.00	CD 6520
			W 5-6, Sea 5, 10/10, Vis. medium
		08.00	CD 6520
			W 5-6, Sea 5, 8/10, Vis. good
		12.00	CD 6520	Day's run:  Surfaced 98 nm, Submerged 2 nm
			NW 7, Sea 6, 5/10, Vis. good
		13.58	CD 6520	Course 230°, speed 4.5 knots.
		16.00	CD 6540
			W 7, Sea 6-7, 5/10, Vis. good
		20.00	CD 6460
			W 5-6, Sea 5, Vis. good
		15.05.42
		00.00	CD 6480
			W 2-3, Sea 3, 10/10, Vis. good
		04.00	CD 6470
			WNW 2-3, Sea 3, 0/10, Vis. medium, rainy
		08.00	CD 5930
			WNW 5, Sea 3-4, 10/10, Vis. medium
		12.00	CD 5950	Day's run:  Surfaced 130 nm
			NW 3, Sea 2-3, 2/10, Vis. good
		16.00	CD 5880
			NW 3, Sea 2, 6/10, Vis. good
		16.30	CD 5880	Difference between dead reckoning and actual position after a navigation fix by longitude and mid day latitude 230°T, 20.4 nm.
		20.00	CD 8210
			NNW 3, Sea 2, 6/10, Vis. very good, Swell
		16.05.42
		00.00	CD 8150
			W 2-3, Sea 3, 10/10, Vis. good, Swell
		04.00	CD 8170
			NNW 3, Sea 2, 3/10, Vis. good, Swell

	Sun and Moon Data 13.05.42
	Sun and Moon Data 14.05.42
	Sun and Moon Data 15.05.42
	Sun and Moon Data 16.05.42

	- 7 -
		continued
		16.05.42
		08.00	CD 7390
			NNW 2, Sea 1, 5/10, Vis. good
		08.30	CD 7390	Difference between dead reckoning and actual position after a navigation fix by Arkturus, Schedir and North Star 80°T, 10.5 nm.
		12.00	CD 7620	Day's run:  Surfaced 161 nm
			NNW 4-5, Sea 4, 4/10, Vis. good
		16.00	CD 7610
			N 4-5, Sea 3-4, 6/10, Vis. good
		19.10	CD 7550	Crash dive for training, damage control exercises.
		20.00	CD 7550
		20.26	CD 7550	Surfaced, course 247°, speed 7 knots.
			NNE 4-5, Sea 3-4, 5/10, Vis. good
		17.05.42
		00.00	CD 7570
			NNE 2-3, Sea 1-2, 3/10, Vis. good, long Swell
		04.00	CD 7550
			NNE 2-3, Sea 1, 4/10, Vis. good
		08.00	CD 7720
			NNE 1-2, Sea 1, 5/10, Vis. good
		12.00	CC 9960	Day's run:  Surfaced 172 nm, Submerged 2.5 nm
			N 1, Sea 0-1, 6/10, Vis. good
		16.00	CC 9970
			N 1, Sea 0-1, Vis. good, light Swell
		20.00	DE 3120
			N 1, Sea 1, 6/10, Vis. good
		18.05.42
		00.00	DE 2360
			N 1, Sea 1-2, 8/10, Vis. good, light Swell
		04.00	DE 2380
			N 1, Sea 1, 1/10, Vis. good
		08.00	CE 2530
			N 1, Sea 0-1, 4/10, Vis. good, light Swell
		12.00	DE 2550	Day's run:  Surfaced 201 nm
			N 1, Sea 0-1, 4/10, Vis. good
		16.00	DE 2490	19.54 hours in accordance with Outbound Orders after crossing 50°W Short Signal:  183 cbm.  U-504.
			N 1, Sea 0-1, 3/10, Vis. good, light Swell
		20.00	DE 2710
			N 1, Sea 0-1, 3/10, Vis. very good	22.17 hours        DE 2710
				Radio Message 2140/18/263:
				U-504 reported it has 183 cbm fuel inventory.  Signal was received garbled at 19.50 hours on Greenland Circuit.

	Sun and Moon Data 16.05.42
	Sun and Moon Data 17.05.42
	Sun and Moon Data 18.05.42

	- 8 -
		19.05.42
		00.00	DE 1930
			N 1, Sea 0-1, 7/10, Vis. very good
		04.00	DE 1950
			NNE 1-2, Sea 0-1, 6/10, Vis. good
		08.00	DE 1890
			SE 1-2, Sea 0-1, Vis. good
		12.00	DE 4220	Day's run:  Surfaced 198 nm, Submerged -- nm
			SE 1-2, Sea 2, 2/10, Vis. good
		14.58	DE 4210	Crash dive for training, damage control exercises/
		15.38	DE 4240	Surfaced, course 240°, speed 8.5 knots.
			E 2, Sea 1, 3/10, Vis. very good
		16.00	DE 4240
			E 2, Sea 1, 2/10, Vis. very good
		20.00	DE 4150
			SE 4, Sea 3, 5/10, Vis. very good
		20.05.42
		00.00	DE 4170
			E 3, Sea 2, 4/10, Vis. very good
		04.00	DD 6620
			SE 3, Sea 2, 1/10, Vis. good
		08.00	DD 6640
			SE 3-4, Sea 3, 2/10, Vis. good
		08.50	DD 6640	Shadow in sight bearing 20°T, boat came to course 180°, speed 9 knots, on a parallel course to determine enemy courser and speed.
		09.00	DD 6560	Course 310°, speed 10 knots.  Because the enemy shifted quickly to the north, enemy course about 340°.  Due to the beginning of dawn did not increase speed and set off to the west, to maneuver ahead in daylight.
		09.10		The enemy passed out of sight quickly and at sunrise was no longer seen.  So he must have run at least 16 knots.
		10.42	DD 6520	Boat came to course 240° again, speed 7.6 knots.
		12.00	DD 6520	Day's run:  Surfaced 202 nm, Submerged 2 nm
			ESE 3-4, Sea 2-3, 4/10, Vis. good
		16.00	DD 6540
			ESE 4, Sea 3, 4/10, Vis. good
		20.00	DD 6490
			ESE 4-5, Sea 3, 7/10, Vis. good
		21.20	DD 6480	Difference between dead reckoning and actual position after a navigation fix by longitude and mid day latitude 50°T, 13 nm.
			ESE 5, Sea 4, 9/10, Vis. good, overcast

	Sun and Moon Data 19.05.42
	Sun and Moon Data 20.05.42

	- 9 -
		21.05.42
		00.00	DD 6480	Course 238°, speed 7.5 knots.
			SE 5, Sea 4, 10/10, Vis. good, overcast, medium Swell
		04.00	DD 6710
			SE 5-6, Sea 5, 10/10, Vis. good, medium Swell
		08.00	DD 5960
			E 5, Sea 4, 10/10, Vis. medium
		12.00	DD 5980	Day's run:  Surfaced 160 nm
			ESE 6, Sea 5, 10/10, Vis. medium
		16.00	DD 5890
			ESE 5, Sea 4, 10/10, Vis. medium
		20.00	DD 8220
			ESE 5, Sea 4-5, 10/10, Vis. medium
		22.05.42
		00.00	DD 8240	Course 236°, speed 8 knots.
			SE 3, Sea 2-3, 8/10, Vis. good
		04.00	DD 8190
			SE 3, Sea 2, 6/10, Vis. good
		08.00	DD 8420
			SE 1, Sea 0-1, 8/10, Vis. good, a bit hazy
		12.00	DD 7660	Day's run:  Surfaced 184 nm
			NW 1, Sea 0-1, 2/10, Vis. good
		16.00	DD 7680
			N 1, Sea 0-1, 1/10, Vis. good, light Swell
		20.00	DD 7910	Difference between dead reckoning and actual position after a navigation fix by longitude and mid day latitude 0°T, 10 nm.
			N 1, Sea 0-1, 1/10, Vis. good
		23.30	DD 7830	Crash dive, damage control exercises.
			N 1, Sea 0-1, 2/10, Vis. good
		23.05.42
		00.00	DD 7860
			Wind 0, Sea 0, 4/10, Vis. good
		04.00	DD 7850
			Wind 0, Sea 0, 0/10, Vis. good, light Swell
		08.00	DO 2110
			Wind 0, Sea 0, 4/10, Vis. medium
		12.00	DO 1360	Day's run:  Surfaced 196 nm, Submerged 1.5 nm
			E 1, Sea 0-1, 5/10, Vis. good
		16.00	DO 1370	Difference between dead reckoning and actual position after a navigation fix by longitude and mid day latitude 337°T, 7.5 nm.
			SE 1, Sea 0-1, 5/10, Vis. good
		20.00	DO 1520
			SE 1, Sea 0-1, 5/10, Vis. very good

	Sun and Moon Data 21.05.42
	Sun and Moon Data 22.05.42
	Sun and Moon Data 23.05.42

	- 10 -
		continued
		24.05.42
		00.00	DO 1540
			SE 1-2, Sea 1, 6/10, Vis. good
		04.00	DO 1480
			SE 1-2, Sea 1, 7/10, Vis. good
		08.00	DO 1710
			SE 1, Sea 1, 3/10, Vis. good, rainy
		12.00	DN 3950	Day's run:  Surfaced 202 nm
			SEbyE 3, Sea 2-3, 2-3/10, Vis. good
		16.00	DN 3970
			SEbyE 3, Sea 2-3, 8/10, Vis. good
		20.00	DN 6220
			SEbyE 2, Sea 1-2, 7/10, Vis. good
		25.05.42
		00.00	DN 6240
			SEbyE 2, Sea 1-2, 7/10, Vis. good
		02.10	DN 6420	Difference between dead reckoning and actual position after a navigation fix by Alphard, Dubhe, Castor, Procyon and North Star 93°T, 10 nm.
		04.00	DN 6420	Headed for the center of the Caicos Passage, new course 238°, speed 8.2 knots.
			SEbyE 2, Sea 1, 3/10, Vis. good, moonshine
		08.00	DN 6410
			SEbyE 2, Sea 1, 5/10, Vis. good
		11.10	DN 5660	Crash dive for training.
		12.00	DN 5650	Day's run:  Surfaced 195 nm, Submerged 2 nm
			SEbyE 2, Sea 1, 7/10, Vis. good
		12.15	DN 5680	Surfaced.  A small vessel in sight bearing 60°T, about 8 nm away, about R-Boot size.  Hauled off to the south and ran out of sight.
			SE 2, Sea 1, 7/10, Vis. good
		13.12	DN 5670	Came to course 244°, speed 9.2 knots.
		16.00	DN 5590
			E 2, Sea 1, 7/10, Vis. good
		18.45	DN 5810	Difference between dead reckoning and actual position after a navigation fix by sun position lines 0°T, 5 nm.
		19.03	DN 5810	New course 205°.
		20.00	DN 5850
			S 2, Sea 1, 8/10, Vis. good
		21.21	DN 5840	Came to course 160°.
		26.05.42
		00.00	DN 5880
			SSE 2, Sea 1, 7/10, Vis. good
		03.00	DN 8220	Came to course 235°.
		04.00	DN 8250
			SSE 2, Sea 1, 7/10, Vis. good
		08.00	DN 8180
			SSE 2, Sea 1, 4/10, Vis. good
		11.40	DN 8410	Difference between dead reckoning and actual position after a navigation fix by Fomalhaut, Venus and Vega 325°T, 12 nm.

	Sun and Moon Data 24.05.42
	Sun and Moon Data 25.05.42
	Sun and Moon Data 26.05.42

	- 11 -
		continued
		26.05.42
		12.00	DN 7660	Day's run:  Surfaced 240 nm, Submerged 1 nm
			SSE 2, Sea 1, 4/10, Vis. good
		12.03	DN 7660	On course 340°, 12.2 knots.
		12.10	DN 7660	New course 235°, speed 9.2 knots.
		12.25	DN 7660	On course 200°.
		12.30		Flying boat in sight bearing 45°T.  Crash dive to course 190°, speed 3.2 knots.
		13.46	DN 7660	Surfaced on course 214°, speed 10 knots.
			S 2, Sea 1, 5/10, Vis. good
		16.00	DN 7650
			S 2, Sea 1, 5/10, Vis. good
		18.21	DN 7920	Aircraft bearing 0°T, aircraft course 310°.  Crash dive!
		18.50	DN 7920	Surfaced.
			S 1, Sea 0, 2/10, Vis. very good
		18.54	DN 7920	Course 214°, speed 10 knots.
		20.00	DN 7910
			S 1, Sea 0, 2/10, Vis. good
		20.39		Smoke cloud in sight bearing 40°T.  On course 235°.  Speed 12.2 knots.
		20.41	DN 7910	Course 250°.
		20.47	DN 7940	Came to speed 14.7 knots.
		21.38		To 15 knots.
		21.45		2 masts heads in sight, turned to port to course 205°.
		21.49		Turned further to course 120°.  Began to maneuver ahead.
		21.59		New course 110°.
		22.01	DN 7860	Speed increased to 16 knots.
		22.06		On course 115°.
		22.12		"        120°.
		22.14		"        125°.
		22.16		"        130°.
		22.24		"        125°.
		22.25		Came to course 120°.  Enemy course 110°. 12 knots.  (confirmed by running bearings and distance estimate).
		22.32		On course 115°.
		22.45		"       120°.
		22.48		"        125°.
		22.49		"        130°.
		22.50		Enemy turned to starboard on course 140°.
		22.53		On course 140°.
		22.54		"       145°.
		23.06	DN 7970	Land-based aircraft bearing 315°T.  Crash dive!
		23.10		On course 180°.
		23.15		Because my course comes too close to land, on course 210°, speed 2.4 knots.
				Intention:  Carry out a new maneuver ahead south of the enemy.
		27.05.42
		00.00	DN 7970	Surfaced.
			S 2, Sea 1, 4/10, Vis. good

	Sun and Moon Data 26.05.42
	Sun and Moon Data 27.05.42

	- 12 -
		continued
		27.05.42
		00.07		Flying boat in sight.  Crash dive!
		00.09		Speed 4.1 knots.
		00.20		Speed 3.2 knots.
		00.27	DN 7970	Surfaced.  Under land a gray vessel in sight, apparently an auxiliary warship.
			S 2, Sea 1, 4/10, Vis. good
		00.32		Again a flying boat in sight in the vicinity of the vessel.  Crash dive!  Speed 3.2 knots.
		01.16	DN 7890	At periscope depth.  A flying boat flies exactly towards the boat bearing 180°T.  Due to the clear water went to depth A -50 meters.  The flying boat came exactly from the direction of the vessel, which is now about 7000 meters away.
		01.45		To periscope depth.
		01.51	DN 7890	Surfaced.  Course 330°, speed 10 knots.  In the twilight nothing more is seen.  Continued transit.  A pursuit behind the steamer no longer seems promising.
			S 2, Sea 1, 4/10, Vis. good
		02.13		Came to course 225°, speed 10 knots.
		04.00	DN 7890
			S 2, Sea 1, 4/10, Vis. good, light Swell
		04.12	DN 7890	Vessel in sight bearing 40°T, about R-Boot sized.  Came to course 250°, to remain unseen.
		04.14		On course 150°.
		04.16		Speed increased to 12.2 knots.
		04.28		On course 180°, speed 9.5 knots.
		05.47	EC 1230	Difference between dead reckoning and actual position after a navigation fix on the Navassa Island Lighthouse 88°T, 3 nm.
		08.00	EC 1290	Course 180°T, speed 9.5 knots.
			SSE 2, Sea 1, 8/10, Vis. good
		11.50	EC 1530	Difference between dead reckoning and actual position after a navigation fix 355°T, 13 nm.
		12.00	EC 1530
			ESE 2-3, Sea 2-3, 8/10, Vis. good, low Swell
		13.00	EC 1560	New course 250°T, speed 10 knots.
		13.30		Transit speed, 8.4 knots, diesel-electric.
		16.00	EC 1550
			ESE 3, Sea 2-3, 4/10, Vis. good
		17.30	EC 1540	Surf ahead to starboard.
		17.43		Shallow sounder shows 30 meters, depth falls quickly to 22 meters, then increases again to 300 meters and 1000 meters.
				Because the ship's position by celestial navigation fix agrees exactly, there must be an elongated, shallow bank not noted on the chart.  This runs from φ = 17°10'N and λ = 75°31'W to φ = 17°17'N and λ =75°35'W in a width of about 1 nm.
		20.00	EC 1490
			SE 3, Sea 2, 4/10, Vis. good

Sun and Moon Data 27.05.42

	- 13 -
		28.05.42
		00.00	EC 1480
			ESE 4, Sea 3, 5/10, Vis. good
		02.15	EC 1710	Difference between dead reckoning and actual position after a navigation fix 70°T, 19 nm.
		04.00	EB 3930
			E 2, Sea 1, 7/10, Vis. good, Swell, moonshine
		08.00	EB 3920
			E 3, Sea 3, 5/10, Vis. good
		12.00	EB 3850	Day's run:  Surfaced 197 nm
			E 3-4, Sea 3, 5/10, Vis. good
		16.00	EB 3840
			ESE 4, Sea 3, 4/10, Vis. good
		20.00	EB 3750
			E 4, Sea 3, 5/10, Vis. good
		29.05.42
		00.00	EB 2960
			E 4, Sea 1-2, 8/10, Vis. good
		04.00	EB 2670
			E 4, Sea 3, 9/10, Vis. good
		08.00	EB 2560
			E 4, Sea 3, 10/10, Vis. good
		11.40	EB 2280	Course change to 315°.
		12.00	EB 2280	Day's run:  Surfaced 195 nm
			E 2-3, Sea 1-2, 4/10, Vis. good, moonshiine
		12.01	EB 2280	Test dive.
		12.50	EB 2280
			E 2-3, Sea 2, 5/10, Vis. good
		16.00	EB 2240
			E 2-3, Sea 2, 5/10, Vis. very good
		19.35	EB 2130	Smoke cloud in sight bearing 110°T.
		19.38		Came to course 125°, speed 9 knots.
		19.40		Initiated maneuver ahead at 15 knots for enemy course 270°.
		20.00	EB 2130
			E 2, Sea 1-2, 6/10, Vis. very good
		20.55	EB 2120	Dived to attack
		21.37	EB 2120	Shot from tube I and II with speed = 10 knots, target angle 120° and 130°, torpedo speed = 30 knots, range = 1000 meters, running time 114 seconds.
				Hit center from tube II.
				The steamer sank quickly over the sternpost and disappeared after about 1.5 minutes.
		21.40	EB 2120	Surfaced.
			E 2, Sea 1-2, 5/10, Vis. very good	From wreckage and statements from 8 survivors of the crew it was the 1597 sized steamer "ALLISTER" from Kingston on the way from Jamaica for Honduras with bananas.  Crew members were given water and some food and bandages for some light wounds on their raft.
		22.20	EB 2120	Continued on course 325°, speed 8 knots.

	Sun and Moon Data 28.05.42
	Sun and Moon Data 29.05.42

	- 14 -
		30.05.42
		00.00	DM 8780
			E 2, Sea 1-2, 6/10, Vis. partly good, rainy
		04.00	DM 8740
			E 3, Sea 2-3, 3/10, Vis. good
		06.10	DM 7930	Came to course 305°.
		08.00	DM 7930
			E 2, Sea 1-2, 0/10, Vis. very good, full moon
		10.11	DM 7680	Difference between dead reckoning and actual position after a navigation fix 121°T, 11 nm.
		12.00	DM 7670	Day's run:  Surfaced 183 nm, Submerged 5 nm
			E 2, Sea 1-2, 0/10, Vis. very good
		12.21		Test dive.
		13.10	DM 7640	Surfaced.  Course 305°, 8 knots.
			E 2-3, Sea 2, 1/10, Vis. very good
		16.00	DM 7520
			E 2-3, Sea 2, 1/10, Vis. very good
		20.00	DM 7270
			E 2, Sea 1, 2/10, Vis. very good
		31.05.42
		00.00	DM 7150
			E 1, Sea 0-1, 1/10, Vis. good
		04.00	DM 7110
			E 1, Sea 0-1, 2/10, Vis. good
		08.00	DL 6980
			E 1, Sea 0-1, 5/10, Vis. good
		12.00	DL 6860
			E 1. Sea 0-1, 4/10, Vis. good
		16.00	DL 6820
			E 1, Sea 0-1, 2/10, Vis. very good
		16.30	DL 6810	Several mastheads and smokestacks in sight bearing 100°T.
		16.46		Came to course 230°, speed 15 knots.  2 passenger steamers come, about 25000 GRT with 2 smokestacks, 2 freighters and at times 3 destroyer masts in sight.  Enemy zigzags at high speed around about 230°.  Attempted at 17 knots to maneuver ahead at enemy target angle 50°.  The enemy bearing shifted ahead.  Plotting showed enemy speed 18-20 knots.  Only the passenger steamers and the destroyers zigzag, while the freighters maintain a straight course.
				The high speed cannot be maintained with the high water temperature, the diesels smoke very heavily, therefore
		17.08	DL 6810	came to course 260°, speed 15 knots.
		17.18		Came to course 300°, to remain at the limit of visibility.
		17.35		Came to course 300°, speed 8.4 knots diesel-electric.  Continued transit because the convoy slowly passes out of sight.  Attempted to send KR-

	Sun and Moon Data 30.05.42
	Sun and Moon Data 31.05.42

	- 15 -
		continued
		31.05.42		Radio Message,which was not received by Control.
		20.00	DL 6490
			E 1, Sea 0-1, 1/10, Vis. very good
		21.40	DL 6490	Vessel with smoke feather in sight bearing 60°T.
		22.00	DL 6450	Came to course 26° and began maneuver ahead.
		22.07		It turns out to be an own boat.
		22.10		Ran to meet on course 30°.
		22.39		Stopped in hailing range.  U-106 (Rasch) gave experiences in this sea area, which were already at hand from the situation reports of other boats.
		22.56		Continued on course 325°, 7 knots diesel-electric.
		01.06.42
		00.00	DL 6450
			N 2, Sea 1, 3/10, Vis. very good
		00.20		Radio Message 2153/31/265 and 2245/31/269:
		01.25		1)  Sighted:  20 May DD 6450 fast freighter course 340°.
				26 May DN 7960 freighter course 120°, could not reach shooting position due to strong air.
				31 May DL 6825 two-smokestack passenger steamers, 2 freighters, 3 destroyers, course 230°, 18 knots.
				2)  Sank:
				29 May "ALLISTAR" EB 2120 course 270°.
				3)  "Caicos Windward" no air, no sea.  DN 7980 strong air working together with sea.
				4)  12 + 8 torpedoes, 143 cbm DL 61 high pressure weather, all naval squares.
				5)  Going to DL 54 until the end of the full moon there suspected "Tampico"- traffic.
				6)  Radio Message 1736/31 hereby settled.
				7)  Just now naval square DL 6450 "met "Rasch".
				Poske.
		03.10	DL 6170	Difference between dead reckoning and actual position after a navigation fix 350°T, 7 nm.
		03.45		Came to course 260°.
		04.00	DL 6170
			E 1, Sea 0-1, 1/10, Vis. good, moonshine
		04.05		Came to course 255°.
		07.31	DL 5380	Radio Message:  0650/1/275:
				To Poske:  Operate on traffic between naval square DL 68 and DA 90.  Focal point initially DL 68.  Slowly to DL 90 with decreasing moon.
			I intend to go from DL 54 via DL 28  on the traffic route in accordance with Radio Message 0650 and there in long legs to DL 68 to catch traffic from Galveston-New Orleans and Tampico-Florida Strait.

	Sun and Moon Data 31.05.42
	Sun and Moon Data 01.06.42

	- 16 -
		continued
		01.06.42
		08.00	DL 5380
			E 1, Sea 0-1, 1/10, Vis. good
		08.20		Speed 7 knots.
		12.00	DL 5530	Day's run:  Surfaced 199 nm
			E 1, Sea 0-1, 2/10, Vis. good, moonshine
		12.50		Difference between dead reckoning and actual position after a navigation fix 61°T, 6 nm.
		16.00	DL 5510
			E 1, Sea 1, 3/10, Vis. very good
		20.00	DL 5510
			E 1, Sea 1, 3/10, Vis. very good
		22.54		Came to course 265°.
		02.06.42
		00.00	DL 5440
			E 1, Sea 0-1, 3/10, Vis. good
		00.50		Came to course 30°, speed 6.5 knots.
		03.15	DL 5440	Difference between dead reckoning and actual position after a navigation fix 232°T, 12 nm.
		04.00	DL 5440
			NE 2, Sea 1, 4/10, Vis. good
		08.00	DL 5180
			NE 4, Sea 2, 4/10, Vis. good
		12.00	DL 5160	Day's run:  Surfaced 164 nm
			NE 1, Sea 2-3, 3/10, Vis. good
		12.30		Difference between dead reckoning and actual position after a navigation fix 320°T, 4 nm.
		12.48		Test dive.
		13.15	DL 5130	Surfaced.
			NE 3, Sea 2, 3/10, Vis. good
		16.00	DL 2870
			NE 2-3, Sea 1-2, 4/10, Vis. good
		20.00	DL 2850
			NE 3, Sea 2, 4/10, Vis. good
		03.06.42
		00.00	DL 2820
			NE 3, Sea 2-3, 4/10, Vis. good
		01.45	DL 2580	Came to course 75°, speed 7 knots.
		03.15	DL 2590	Difference between dead reckoning and actual position after a navigation fix 45°T, 8 nm.
		04.00	DL 2670
			NE 2, Sea 2, 3/10, Vis. good
		08.00	DL 2680
			NE 2, Sea 1-2, 2/10, Vis. good
		12.00	DL 3440	Day's run:  Surfaced 149 nm, Submerged 1.5 nm
			NE 2, Sea 1-2, 2/10, Vis. good
		12.20	DL 3440	Difference between dead reckoning and actual position after a navigation fix 50°T, 4 nm.
		16.00	DL 3450
			NE 2, Sea 1, 3/10, Vis. very good
		20.00	DL 3470
			NNE 2, Sea 1, 3/10, Vis. very good

	Sun and Moon Data 01.06.42
	Sun and Moon Data 02.06.42
	Sun and Moon Data 03.06.42

	- 17 -
		04.06.42
		00.00	NE 1-2, Sea 1, 2/10, Vis. good
		03.15	DL 2950	Difference between dead reckoning and actual position after a navigation fix 245°T, 19 nm.
		04.00	DL 2950
			NE 1, Sea 1, 2/10, Vis. good
		05.15	DL 2970	Course 100°, speed 7 knots.
		08.00	DL 2980
			NE 1, Sea 1, 4/10, Vis. good
		12.00	DL 2990	Day's run:  Surfaced 159 nm
			NE 1, Sea 1, 4/10, Vis. good
		12.16		Test dive.
		12.55	DL 6110	Surfaced.
			SE 1, Sea 0, 3/10, Vis. good
		16.00	DL 6120
			SE 1, Sea 0, 3/10, Vis. very good
		20.00	DL 6210	Course 210°, speed 7 knots.
			SE 1, Sea 0, 3/10, Vis. good
		05.06.42
		00.00	DL 6160
			SE 1, Sea 0, 4/10, Vis. very good
		03.10	DL 6160	Difference between dead reckoning and actual position after a navigation fix 20°T, 30 nm.
		04.00	DL 6160
			SE 1, Sea 0, 3/10, Vis. very good
		08.00	DL 6180
			SE 1, Sea 0, 2/10, Vis. very good
		10.10		Came to course 130°, speed 7 knots.
		12.00	DL 6450	Day's run:  Surfaced 157 nm, Submerged 2 nm
			SE 1, Sea 0, 5/10, Vis. good
		12.35	DL 6480	Difference between dead reckoning and actual position after a navigation fix 168°T, 15 nm.
		15.00	DL 6490	Masthead in sight bearing 100°T, target angle about 80°.
		15.05		Maneuvered ahead on general course 180°, speed 10 knots.  It turns out to be a freighter of about 5000 GRT.
		15.34		2 masts in sight bearing 210°T, target angle 5°, bow right.  The first steamer in the mean time had target angle 45°.  Therefore operated on the second vessel first.
		15.37		Enemy course 0°.
		15.44		Dived to attack.  Came to course 30°.
		16.00	DL 6490
		16.31		The vessel came in view in the periscope.  It was a large schooner yacht.  Therefore moved off on course 120°, to pursue the first steamer when out of sight of the yacht.
		17.07	DL 6490	Surfaced, course 50°, speed 7 knots.
			SE 1, Sea 0, 3/10, Vis. good
		17.31		Went around the still visible yacht in a large arc to the east.
		18.31	DL 6730	Vessel in sight bearing 130°T.
		18.39		Came to course 120°.
				It turned out to be a large fishing cutter.  Again started to go around to the east.  In so doing a 2nd cutter came in sight to the east near the first.

	Sun and Moon Data 04.06.42
	Sun and Moon Data 05.06.42

	- 18 -
		continued
		05.06.42
		20.00	DL 6810	Pursued the first steamer again on course 150°.
			SE 1, Sea 0, 3/10, Vis. good
		20.02		Came to course 160°, speed 15.5 knots.
		20.05		Came to course 170°.
		20.10		Aircraft in sight bearing 215°T.
				Crash dive!
		20.50	DL 6810	Surfaced.  Came to course 170° at 15.5 knots.
			SE 1-2, Sea 1, 1/10, Vis. good
		21.00		Aircraft with target angle 80° bearing 160°T.  Disappeared soon thereafter.
		21.10		Speed 6 knots.
			Due to the delays, I can no longer get the steamer off Yucatan Strait.  The further courses of the steamer are too uncertain.  Therefore broke off pursuit.
		06.06.42
		00.00	DL 6880
			SE 1-2, Sea 1, 1/10, Vis. good
		03.00	DL 6870	Difference between dead reckoning and actual position after a navigation fix 330°T, 12 nm.
		04.00	DL 6870
			SE 1-2, Sea 1, 9/10, Vis. medium
		04.01		Came to course 155°, speed 7 knots.
		08.00	DL 9250
			SE 1-2, Sea 1, 9/10, Vis. medium
		12.00	DL 9290	Day's run:  Surfaced 175 nm, Submerged 7 nm
			SE 1-2, Sea 1, 8/10, Vis. good, lightening
		12.30	DL 9260	Difference between dead reckoning and actual position after a navigation fix 30°T, 18 nm.
		16.00	DL 9370
			SE 1-2, Sea 1, 9/10, Vis. good
		20.00	DL 9650
			SE 4, Sea 2-3, 9/10, Vis. good
		20.12		Flying boat bearing 75°, course 180°.
		20.15		Crash dive!  Came to course 75°, speed 6 knots.
		20.35	DL 9650	Surfaced.  Came to course 155°, speed 6 knots.
			SE 4, Sea 2-3, 6/10, Vis. good
		07.06.42
		00.00	DL 9680
			SE 4, Sea 2-3, 3/10, Vis. good
		00.09		Steamer in sight bearing 205°T.  Range about 13 nm.
		00.15		Began to maneuver ahead.  Enemy course north.  Enemy zigzagged however irregularly around general course 345°.  Enemy speed 12 knots.  The zigzagging of the enemy amounts to 60-90°.  The interval is completely irregular, between 2 and 8 minutes.

	Sun and Moon Data 05.06.42
	Sun and Moon Data 06.06.42
	Sun and Moon Data 07.06.42

	- 19 -
		continued
		07.06.42
		01.30		Enemy target angle was 0°.
		01.43	DL 9640	Dived to attack submerged.
		02.37		In the twilight shot from tubes I and II.
				Target speed = 12 knots, target angle = 70°, 90°, range = 1100 meters, directly after the shot the enemy zigzagged hard 50° away.
				It turned out to be a freighter of 5000 GRT.  Both torpedoes ran normally.  After 67 seconds a dull impact was heard in the entire boat, however a detonation was not seen, therefore probably a Pistol failure.
		03.07	DL 9640	Surfaced.  Enemy in sight bearing 340°T.  Maneuvered ahead for night attack on course 0° and 340°, speed 15 knots.
			SE 4, Sea 3, 8/10, Vis. good
		04.00	DL 9610	Turned to attack course at 9 knots, enemy target angle 20°.
			SE 4, Sea 3, 8/10, Vis. good
		05.15		Surfaced shot from tubes III and IV.
				Target speed = 10 knots, target angle 60° and 70°, range = 1000 meters.  Miss, because the enemy turned away hard again.  The first torpedo broached several times.
				Pursued again for a 3rd attack.
		06.38	DL 9290	At enemy target angle 10° came to attack course.  Shortly before the shot the enemy zigzagged away again 90°.  As a result I was forced into his wake at a distance of about 600 meters, to await the next 90° zigzag and then shoot at a target angle of about 110° to 120°.
		07.05	DL 9260	Surface shot from tubes I and II with target speed = 12 knots, target angle 120°, range 700 meters.
				Both torpedoes broached several times and one made a visible bayonet to starboard.
				Again a miss!
			The pursuit was broken off because
			1)  further use of torpedoes is not worthwhile and
			2)  the Kommandant is no longer capable due to as a result of a very violent fever attack on this day.
		07.15		Moved off on course 170°, 7.5 knots.
		08.00	DL 9290
			SE 4, Sea 3, 8/10, Vis. good
		12.00	DL 9560	Day's run:  Surfaced 189 nm, Submerged 5 nm
			SE 4, Sea 3, 9/10, Vis. good
		12.30	DL 9560	Difference between dead reckoning and actual position after a navigation fix 150°T, 32 nm.
		15.45	DL 9950	Reduced speed to 6 knots.
		16.00	DL 9950	Test dive.
			SE 4, Sea 3, 9/10, Vis. good
		16.25	DL 9950	Surfaced.
			SE 4, Sea 3, 9/10, Vis. good
		20.00	DL 9980
			SE 3-4, Sea 3, 10/10, Vis. good
			I intend to download in the following night and then to lay on the steamer route Yucatan Channel, - Swan Islands - Panama Canal.

Sun and Moon Data 07.06.42

	- 20 -
		08.06.42
		00.00	EA 3320
			SE 3-4, Sea 2-3, 0/10, Vis. good
		00.50		To download came to course 295°, speed 2.8 knots.
		02.00		Began downloading.
		02.54		Came to course 300°.
		04.00	EA 3320
			SE 3-4, Sea 1-2, 5/10, Vis. good
		05.00		Downloading of 6 torpedoes ended.
		06.25		A shadow came in sight bearing 310°T, range about 4 nm.
				Came to course 160°.
				The unrigging of the overdeck is still not finished, the beam  is still standing.
				Too position ahead of him on enemy course 160° in target angle 10° at 15 knots.  It turned out to be a large steamer, enemy speed 13 knots.
		06.51		Turned to port to attack.
		06.59		Shot from tubes I and II with target speed = 13 knots, target angle = 70°, range = 900 meters.
				The first torpedo broached several times.
				The steamer received two hits close together and began to burn fiercely, in the fiery glow one recognized a passenger superstructure so a passenger-freighter of about 8000 GRT.  She ship sank quickly over the stern post.
		07.11		Moved off to the SE.
		07.33		Came to course 340°, speed 7 knots.
		08.00	EA 3310	Course 0°, speed 7 knots.
			S 2, Sea 1-2, 5/10, Vis. good
		10.00	DL 9970	Came to course 140°, speed 6.5 knots.
				Again in the direction of the Swan Islands!
		12.00	EA 3320	Day's run:  Surfaced 136 nm, Submerged 1.2 nm
			S 1-2, Sea 1, 5/10, Vis. good
		12.30	DL 9980	Difference between dead reckoning and actual position after a navigation fix 324°T, 10 nm.
		14.18	EA 3320	In about 80°T, approximately 17 nm away 4 masts came in sight.
		14.19		Began to maneuver ahead on enemy course approximately 300°, enemy speed 6-7 knots. Range about 14 knots.  It is a steamer with 4 masts and coal fired.
		16.00	DL 9980
			S 1-2, Sea 1, 5/10, Vis. good
		16.31		At target angle 0° dived to attack.
		17.59	DL 9980	Shot from tubes V and VI with target speed = 8 knots, target angle = 70°, range = 800 meters.  Both torpedoes ran normally.
				Miss.
		18.06	DL 9980	Surfaced to attack with artillery.
			S 1-2, Sea 1, 5/10, Vis. good	In the meantime range was about 1200 meters.  Opened fire with all weapons and closed at HF.
		18.07		Steamer transmitted the following report three times:
				sss    sss   sss
				18  rhvn 84  rhbw
				rosenborg gunnen.

Sun and Moon Data 08.06.42

	- 21 -
		continued
		08.06.42		Steamer turned away to starboard.  The 3rd 10.5 cm shot lay at the bridge, whereupon the transmitting ended immediately.
			A lifeboat is launched in the lee, therefore fire was temporarily stopped.  When the lifeboat had set off, the steamer was sunk by a total of 60 shots of 10.5 cm, of these about 30 hits.  It settled quickly over the stern.  Size at least 3000 GRT, it cannot be the one listed in "Gröner" named "ROSENBORG". Heavy loading equipment and 4 large hatches.
		18.35		Due to the Radio Message warning did not close the boats, instead moved off on a deceptive course of 220° at 15 knots.
		19.07		A steamer came in sight bearing 225° about 14 nm away. Enemy bow left, again course 130°!  Maneuvered ahead with enemy course 125°.  Target speed = 9 knots.  Own speed 15 knots.
		20.00	DL 9980	A flying boat came in sight bearing 330°T and circled over the sinking location of the previous steamer.
			S 1-2, Sea 1, 5/10, Vis. good
		20.02		Crash dive!
				The new steamer now had about target angle 20°, enemy speed is plotted at 10 knots, at 5 knots I should reach shooting position easily.
		20.19		Came to course 190°, speed 5 knots.
		20.23		The flying boat is now at the steamer, circles him several times and then flies in the direction of the sinking location.
		20.26		The steamer then sets his identification signal and came about, as a result the shooting opportunity passes, I must let him go at 5000 meters.
				The flying boat came back several times, so it was notified by the lifeboat of my departure course, especially since it never flew in a different direction.
		20.39		Came to course 130°, to possibly get the steamer after the rescue operation.
				The flying boat continues to circle.
		23.00	EA 3320	Surfaced, although the aircraft is still in sight, although it is already far off.
			SE 3-4, Sea 2-3, 0/10, Vis. good
		23.08		Moved off on course 165°, speed 10 knots.
		23.25	EA 3320	Radio Message 2231/8/121/234:
				1)  Poske and Hartenstein report situation in the night.
				2)  Between 01.00 and 05.00 hours report weather:  Kölle, Bigalk, Varendorf.

Sun and Moon Data 08.06.42

	- 22 -
		09.06.42
		00.00	EA 3550	Came to course 130°. speed 7 knots.
			SE 1, Sea 1, 5/10, Vis. good
		01.23	EA 3360	Course 100°, speed 6 knots.
		02.20	EA 3360	Came to course 340°, speed 7 knots.
		04.00	EA 3330
			SE 1, Sea 1, 5/10, Vis. good
		06.05	EA 3330	Outgoing Radio Message:
				0251/9/252 and 0311/9/254:
		07.30	DL 990	1)  Situation:  From DL 91 to EB 14 strong independent traffic, no sea, occasional air.
				2)  Sighted:
				5 June DL 6840 freighter 5000 GRT, course 180° forced off by fishermen and air, pursued in vain.
				7 June DL 9680 freighter 6000 GRT, 14 knots.  General course 350°, zigzagged up to 90°, 3 missed approaches, 3 torpedoes broached. Contact lost at night.
				8 June DL 9970 freighter 5000 GRT, course 130° forced off by continual flying boats.
				3)  Sank:  8 June EA 3320 passenger freighter 8000 GRT, course 140°, DL 9980 freighter 3000 GRT, course 330°, after double miss at 600 meters with artillery.
				4)  118 cbm, 2 Etos, 6 + 2 Ato.  DL 99, Trade Wind weather.  All naval squares.    Poske.
		08.00	DL 9980
			S 1-2, Sea 1, 6/10, Vis. good
		12.00	DL 9950	Day's run:  Surfaced 151.5 nm, Submerged 16.6 nm
			S 2, Sea 1, 3/10, Vis. good
		12.30	DL 9910	Difference between dead reckoning and actual position after a navigation fix 300°T, 17 nm.
		14.22	DL 9670	A smoke feather bearing 330°T, closed on course 330°.
		14.39		Steamer with 2 masts in sight.  Began to maneuver ahead on enemy course 170°, enemy speed 12 knots.
		14.42		Came to course 190°, speed 15.5 knots.
		16.00	DL 9910
			S 2, Sea 1, 3/10, Vis. very good
		16.09		Came to course 160°.  I am now positioned in target angle 0°.
		16.10		An aircraft comes in sight bearing 100°T.
		16.11		Crash dive!
		16.15		Came to opposite course 341°.  Speed 4 knots.
		16.40		Came to attack course 70° at 2.5 knots.  Enemy course 20°.
				The steamer is a patrol vessel with several cannons.  Therefore silent running.
		16.44	DL 9910	The vessel of about 1000 GRT, suddenly turned to target angle 90°, range 2500 meters.  I hoped that he would turn back again, because the range was too great and I only have Atos at my disposal forward.  The enemy has obviously reduced speed significantly.  Only shifts a bit and always holds at target angle 70 to 90°.  So he makes a quarter circle around us.  With the flat water frequent extension and retraction of the periscope is necessary, which causes particularly loud noise.

Sun and Moon Data 09.06.42

	- 23 -
		continued
		09.06.42
		17.10		For that reason I went slowly to depth A +20 meters.  The quite clear sound bearing disappeared suddenly at depth A -20 meters.  Water density meter indicated 1/1000, therefore a beautiful insulation layer.
		10.06.42
		00.00	DL 9940
			SE 3, Sea 2, 4/10, Vis. good
		03.36	DL 9970	Came to course 145°. speed 6.5 knots.
		04.00	DL 9970
			SE 4, Sea 3, 2/10, Vis. good
		08.00	EA 3320
			SE 4, Sea 3, 2/10, Vis. good.
		09.50	EA 3320	Large shadow bearing 55°T, course 145°.  Range about 8000 meters.
		10.06		Came to course 120°, speed 16.5 knots.  Initiated maneuver ahead.  The enemy moves ahead quickly.  At target angle 90° we are about 6000 meters away.  Apparently is a passenger steamer.
		10.40	EA 3360	Enemy passed out of sight ahead, so came to course 145° at 5 knots.
		12.00	EA 3360	Day's run:  Surfaced 135.7 nm, Submerged 9.2 nm
			SE 4, Sea 3, 3/10, Vis. good
		12.36		Came to course 105°.
		13.30		"           "       190°.
		14.30		"           "       100°.
		15.30		"           "       190°.
		16.00	EB 1170
			SE 5, Sea 4, 8/10, Vis. good
		16.30		On course 100°.
		17.30		"       190°.
		18.32		Flying boat bearing 100°T, course 0°.
		18.33		Crash dive!
		18.50		Came to course 220°, speed 3 knots.
		18.59	EB 1170	Surfaced.  Flying boat is still in sight flying off in 10°T.
			SE 5, Sea 4, 6/10, Vis. good
		19.30	EB 1170	Came to course 190°, speed 5.5 knots.
		20.00	EB 1170
			SE 5, Sea 4, 6/10, Vis. good
		20.30		Came to course 100°.
		21.30		Course 190°.
		23.15	EB 1410	Steamer in sight bearing 115°T.  Course about 320°, 14 nm away.
		23.18		Maneuvered ahead on general course 335°, enemy speed 12 knots.  The enemy zigzags about 40° to each side.

	Sun and Moon Data 09.06.42
	Sun and Moon Data 10.06.42

	- 24 -
		11.06.42
		00.00	EB 1170
			SE 5, Sea 4, 5/10, Vis. good
		01.07	EB 1170	Dived to attack with enemy target angle 0°.
		01.22		On course 20°.
		01.54	EB 1140	On course 285°.
		02.10	EB 1140	The enemy is a passenger steamer of about 14000 GRT.  At about 3000 meters and target angle 15° turned for a stern shot.  Immediately before the shot both stern torpedoes were not ready, therefore turned for a bow approach.  The range was increasing even thought the enemy had zigzagged towards.  Therefore shot a 4-fan from tubes I to IV with target speed = 12 knots, range = 2200 meters, target angle = 70°, depth = 4 meters.
				2 hits, forward and aft.  The enemy stopped, the boats were lowered.  Closed for a coup de grâce.  At range = 900 meters tube V is ready again, shot angle = 0°.
		02.22	EB 1140	Miss.  Unexplained.
		02.45		The crew is on board again.
		03.01	EB 1140	Surfaced, because in the meantime it has grown dark, maneuvered ahead for a surface attack.
			SE 3, Sea 2-3, 5/1-, Vis. good
		03.07		Came to course 90° with speed 11 knots.
		03.25	EB 1170	Turned towards to attack.
		03.31	EB 1170	Shot from tube IV.  Target speed = 3 knots, target angle = 80°, range = 500 meters.  After 25 seconds detonation at the level of the smokestack, the ship lists over to port and is sunk after 1 minute.  Type of the ship "VANDYCK" 13,241 GRT.
		04.00	EB 1140	Course 90°, speed 5.5 knots.
			SE 3-4, Sea 2-3, 5/10, Vis. good
		05.05	EB 1150	Outgoing Radio Message 0342/11/257:
				EB 1170 type "VANDYCK" course 340° sunk.  1 Eto, 3 Ato, 110 cbm.    Poske.
		08.00	EB 1160
			SE 3-4, Sea 2-3, 4/10, Vis. good
		12.00	EB 1240	Day's run:  Surfaced 133 nm, Submerged 10.2 nm
			SE 3-4, Sea 2-3, 3/10, Vis. good
		12.30	EB 1140	Difference between dead reckoning and actual position after a navigation fix 275°T, 46 nm.
		14.27	EB 1150	Crash dive for 3 aircraft, which come in sight in 70°T and on course 250°.
				Came to course 330°.
		14.50		Came to course 90°.
		15.38	EB 1150	Surfaced.
			SE 3-4, Sea 2-3, 3/10, Vis. good
		16.00	EB 1150
			SE 3-4, Sea 2-3, 3/10, Vis. good
		16.30		A smoke feather bearing 110°T, 14 nm away.
				Maneuvered ahead on general course 285°, enemy speed 11 knots.
				On course 290° and 285°.
				The enemy is already in target angle 10° and zigzags about 30° around general course 300°.
		16.52		Dived to attack.
				At the moment I only have 1 Ato forward and 1 Eto ready astern.
		17.50		Turned for a bow approach.  The enemy, a 5000 GRT freighter, still lies on the zigzag away . . .

Sun and Moon Data 11.06.42

	- 25 -
		continued
		11.06.42		in target angle 50° about 3000 meters away.  Closed at HF.
		17.58		He holds course and omits the zigzag.  Therefore . . .
		18.01	EB 1140	Shot from tube III with target speed = 11 knots, target angle = 90°, range 2000 meters.
				After 129 seconds hit at the stern.  With that a wooden deck house flies apart and the cannon hidden behind it falls over.
		18.09		Closed on course 230° to be ready for a coup de grâce.
				The steamer does not seem to settle deeper so . . .
		18.25		Shot from tube VI.  Target speed 0°, range 1000 meters.  Hit forward edge of the bridge.
		18.29	EB 1140	Surfaced.
				The writing on the lifeboats gives the name "AMERICAN", from New York.  Because the steamer surely transmitted, I did not stay longer, instead moved off on course 90°.  While running off the capsizing of the ship to 180° and sinking over the stern post was observed.
		18.45		Came to course 90°.
		19.03		Came to course 180°, speed 7 knots.
		20.00	EB 1170	Came to course 90°.
			SE 3-4, Sea 2-3, 3/10, Vis. good
		20.07		Came to course 70°, speed 8.5 knots.
		12.06.42
		00.00	EB 1160
			SE 3-4, Sea 2-3, 4/10, Vis. good
		00.01		Crash dive for aircraft bearing 340°T.
		00.05		Came to course 70°, depth A -30 meters.
		00.31		At periscope depth.
		00.34	EB 1160	Surfaced.
			SE 3-4, Sea 2-3, 4/10, Vis. good
		02.23		To download torpedoes came to course 330° before the sea.
		02.27		New course 310°, speed 7 knots.
		02.40	EB 1160	Began downloading torpedoes.
		03.52		Came to course 320°, speed 7 knots.
		04.00	EB 1160
			SE 4, Sea 3, 5/10, Vis. good
		05.50	EB 1130	Downloading the 2 Atos ended.
		06.23		Course 135°, speed 6.5 knots.
		06.32		Radio Message 0157/12/224:
				1)  Continued strong traffic from DL 91 to EB 14.  Now medium air, once a patrol vessel.
				2)  Sank:  11 June square EB 1140 "AMERICAN" 4846 GRT, course 290° .
				3)  2 Atos, 107 cbm, Trade Wind Weather.    Poske.
		08.00	EB 1130
			SE 3, Sea 2-3, 5/10, Vis. good
		12.00	EB 1240	Day's run:  Surfaced 144 nm, Submerged 13 nm
			SE 3, Sea 2-3, 5/10, Vis. good

	Sun and Moon Data 11.06.42
	Sun and Moon Data 12.06.42

	- 26 -
		continued
		12.06.42
		12.30	EB 1190	Difference between dead reckoning and actual position after a navigation fix 250°T, 26 nm.
		15.15		Course 120°, speed 6 knots.
		15.40		Came to course 140°, speed 6 knots.
		16.00	EB 1510
			SE 4, Sea 3, 3/10, Vis. good
		19.30		The Swan Islands in sight bearing 140°T.
		19.38		New course 90°.
		19.40	EB 1510	Difference between dead reckoning and actual position after a navigation fix 295°T, 20 nm.
		20.00	EB 1510
			E 5, Sea 4, 5/10, Vis. good
		13.06.42
		00.00	EB 1520	Came to course 325°, speed 7 knots.
			E 5, Sea 4, 4/10, Vis. good
		02.50	EB 1270	Difference between dead reckoning and actual position after a navigation fix 85°T, 12 nm.
		03.30		Came to course 270°, speed 7 knots.
		04.00	EB 1270
			E 4, Sea 3, 3/10, Vis. good
		08.00	EB 1180
			E 5, Sea 3-4, 1/10, Vis. good
		12.00	EB 3390	Day's run:  Surfaced 154 nm, Submerged -- nm
			SE 3-4, Sea 2, 7/10, Vis. good
		12.18		Test dive to depth A -50 meters.
		13.05		Sound bearing in 50°T from a fast piston engine.
		13.08		At periscope.  In an all around sweep, a steamer in sight bearing 50°T approximately 12 nm away.  The enemy lies at about target angle 20°.  I attempt to reach attack position submerged.
		13.12		Came to course 160°, speed 4.5 knots.
		13.15		Came to course 145°, speed 5.4 knots.  The enemy zigzags away hard.  There is no opportunity for immediate attack, therefore . . .
		13.38	EA 3390	surfaced to maneuver ahead on general course 145°.
			E 3, Sea 2-3, 5/10, Vis. good	The enemy bearing steadies, even though I run at nearly 17 knots.  The sea is against.  When after an hour actually shifts ahead, I broke off the pursuit, because I must expect an enemy speed of 17 knots.
		14.44		Came to course 330°, speed 6.5 knots.
		16.00	EA 3390
			E 3, Sea 2-3, 5/10, Vis. good
		16.50	EA 3380	Difference between dead reckoning and actual position after a navigation fix 270°T, 19 nm.
		20.00	EA 3340
			E 3-4, Sea 2-3, 4/10, Vis. good
		14.06.42

	Sun and Moon Data 12.06.42
	Sun and Moon Data 13.06.42
	Sun and Moon Data 14.06.42

	- 27 -
		14.06.42	In the last days nothing has been seen but fast runners, also no more air.  Additionally Gelhaus reports a reduction in traffic.  Therefore I believe, that the traffic here has been shifted or stopped.
		00.00	DL 9890
			E 2, Sea 1-2, 2/10, Vis. good
		02.00	DL 9860	Came to course 125°, speed 6.5 knots.
		02.52		Radio Message 0215/14/280:
				Since 11 June no traffic, no air, request freedom to maneuver.
				2 Atos, 101 cbm, Trade Wind weather.
				Square DL 9860.  Serial No. 282 of 9 June not solved.
				Poske.
		03.00	DL 9880	Difference between dead reckoning and actual position after a navigation fix 245°T, 9 nm.
		04.00	DL 9890
			E 3, Sea 2-3, 3/10, Vis. good
		08.00	EA 3310
			E 2, Sea 2, 4/10, Vis. good
		11.25	EA 3360	Radio Message 1040/14/285:
				1)  Linder and Liebe free to maneuver in sea area west of the longitude and north of the latitude of the square EG 1999.  Focal point naval square 27.  Go at new moon.
				2)  Poske:  free to maneuver.
		12.00	EA 3360	Day's run:  Surfaced 168 nm, Submerged 4.5 nm
			E 2, Sea 1-2, 5/10, Vis. good
		12.30		Difference between dead reckoning and actual position after a celestial navigation fix 242°T, 8 nm.
		13.37		Radio Message 1307/14/288:
				To Poske:  Serial No. 282 of 9 June is settled.
		15.00	EA 3390	Came to course 100°, speed 6.5 knots.
		15.02		A smoke feather came in sight in 70°T, about 15 nm away.
		15.04		Came to course 80° to maneuver ahead on enemy course 165°.
		16.00	EB 1170
			E 2, Sea 1-2, 8/10, Vis. good
		16.50	EB 1410
		17.20	EB 1420
		17.40		Dived to attack in enemy target angle 0° on course 150°.
		17.50		In relative bearing 30° sound bearing on a fast piston engine.
		17.51		Came to course 330°.
		18.00		Old sound beaing now in relative bearing 202°.  The ship is still beyond visual range.  The engine makes about 80 RPM.  Nothing is heard from the original target.
		18.17		In the direction of the sound bearing a steamer comes in sight, target angle 25°, about 1000 meters away.  It is a smaller steamer, engine aft, forward of that 2 masts with heavy shrouds.  Enemy course about 330°.
		18.23		Our steamer comes in sight out of a rain squall.  Bow right, target angle 5°.
			I want to take this steamer first and afterwards attack the other with artillery.  The first target is a normal freighter with 4 large hatches.

Sun and Moon Data 14.06.42

	- 28 -
		continued
		14.06.42	He has a flag set however did not recognize it.  Otherwise it is painted gray, without markings.
		19.12		Shot from tube III and IV with target speed = 8 knots, target angle = 60°, range 400 meters.
		19.13		The steamer, about 4500 GRT, capsizes and sank quickly.
		19.17		Moved off on course 330°, to get out of the wreckage field.  In the meantime the other steamer passed at a distance of 6000-8000 meters.
		19.22		At periscope depth and . . .
		19.29	EB 1420	Surfaced.
			E 2, Sea 1, 8/10, Vis. good
		19.30		Moved off on course 90° with speed 15 knots because in the meantime the steamer is too far off, intend to maneuver ahead again.
		19.35		On the 600-meter wavelength received:
				sss    sss    sss -de wjca-
				posn lat 17r20n long 84r23w
				unknown ship torpedoes
				17r 18gmt
				-de wjca-
				appeared on the surface but now submerged
				sss submarine
				-de wjca-
				Afterwards the steamer sent this report 4 times, first another radio station acknowledged.
				Due to the observed air danger here broke off pursuit, because only still have artillery ammunition at our disposal.
		20.00	EB 1420
			E 2, Sea 1, 8/10, Vis. good
		20.20		The Swan Islands come in sight bearing 130°T approximately 10 nm away, therefore . . .
		20.30		Came to course 60°, 12 knots.
		15.06.42
		00.00	EB 1280	Came to course 90°, speed 9 knots.
			E 2, Sea 1-2, 9/10, Vis. medium
		04.00	EB 1370
			NE 2, Sea 1, 8/10, Vis. medium
		05.47		Radio Message 0441/15/210:
				14 June sank freighter 4500 GRT EB 1420, course 150°.  Traffic DL 9950 to EB 1450 started again remains west of the Swan Islands on courses 150° and 330°.
				Seen:  1 freighter, 1 fast freighter.  No air.
				Out of torpedoes.  100 shells, 98 cbm, EB 1370 delayed return transit.  All naval squares.    Poske.
		08.00	EB 1390
			E 2, Sea 1-2, 1/10, Vis. medium
		10.30	EB 2180	Radio Message 1006/15/217:

	Sun and Moon Data 14.06.42
	Sun and Moon Data 15.06.42

	- 29 -
		continued
		15.06.42		Poske and Hartenstein begin return transit without supply.
			I intend to proceed through the Caribbean Sea within the island chain up to the Anegada Channel, because I hope to still meet vessels on this route which I can attack with artillery.  There is not a significant delay on this route.
		12.00	EB 2180	Day's run:  Surfaced 211 nm, Submerged 7 nm
			E 2, Sea 1, 4/10, Vis. good
		12.10	EB 2170	Difference between dead reckoning and actual position after a navigation fix 260°T, 12 nm.
		16.00	EB 2190
			ENE 3, Sea 1-2, 4/10, Vis. good
		18.00	EB 2370	On course 130°, speed 9 knots.
		20.00	EB 2250
			E 3-4, Sea 3, 4/10, Vis. good
		16.06.42
		00.00	EB 2640
			ENE 3-4, Sea 2, 3/10, Vis. good
		02.30	EB 2650	Difference between dead reckoning and actual position after a navigation fix 342°T, 9 nm.
		04.00	EB 2680	On course 135°, speed 9 knots.
			ESE 2-3, Sea 2, 5/10, Vis. good
		08.00	EB 3710
			ESE 2-3, Sea 2, 4/10, Vis. good
		11.00	EB 3750	Came to course 90°, speed 9 knots.
		12.00	EB 3750	Day's run:  Surfaced 189 nm
			E 2-3, Sea 1-2, 3/10, Vis. good	Difference between dead reckoning and actual position after a navigation fix 307°T, 14 nm.
		16.00	EB 3840
			SE 3-4, Sea 3, 3/10, Vis. good
		20.00	EB 3860
			SE 3-4, Sea 3, 6/10, Vis. good
		17.06.42
		00.00	EB 3950
			SE 2, Sea 1, 5/10, Vis. good
		04.00	EC 1740
			SE 2, Sea 1, 4/10, Vis. good
		08.00	EC 1760
			SE 2-3, Sea 1-2, 5/10, Vis. good
		12.00	EC 1830	Difference between dead reckoning and actual position after a navigation fix 50°T, 10 nm.
			E 3, Sea 2, 5/10, Vis. good
				Day's run:  Surfaced 210 nm
		14.02		Test dive.
		14.52	EC 1910	Surfaced.
			E 3, Sea 2-3, 5/10, Vis. good
		16.00	EC 1920
			E 3, Sea 2-3, 5/10, Vis. good
		20.00	EC 2710
			ESE 4, Sea 3, 4/10, Vis. good

	Sun and Moon Data 15.06.42
	Sun and Moon Data 16.06.42
	Sun and Moon Data 17.06.42

	- 30 -
		18.06.42
		00.00	EC 2730
			ESE 4, Sea 3, 5/10, Vis. good, rain showers
		04.00	EC 2820
			ESE 4, Sea 3, 3/10, Vis. good
		08.00	EC 2910
			E 4, Sea 3, 3/10, Vis. good
		11.30	EC 2930	Difference between dead reckoning and actual position after a navigation fix 250°T, 13 nm.
		12.00	EC 2950	Day's run:  Surfaced 206 nm, Submerged 3 nm
			E 4, Sea 3, 3/10, Vis. good
		16.00	EC 3740
			E 5-6, Sea 4-5, 2/10, Vis. good
		20.00	EC 3760
			E 4, Sea 3, 5/10, Vis. good
		19.06.42
		00.00	EC 3850
			E 4, Sea 3, 6/10, Vis. good
		04.00	EC 3940
			E 4, Sea 3, 2/10, Vis. good
		08.00	EC 3960
			E 4, Sea 3, 5/10, Vis. good
		11.30	ED 1740	Difference between dead reckoning and actual position after a navigation fix 70°T, 3 nm.
		12.00	ED 1740	Day's run:  Surfaced 198 nm
			E 4, Sea 3, 6/10, Vis. good
		16.00	ED 1760
			E 4, Sea 3, 3/10, Vis. good
		20.00	ED 1850
			E 4, Sea 3, 5/10, Vis. good
		20.06.42
		00.00	ED 1940
			E 4, Sea 3, 5/10, Vis. good
		01.45	ED 1950	Difference between dead reckoning and actual position after a navigation fix 150°T, 8 nm.
		04.00	ED 1960	New course 65°.
			E 4, Sea 3, 2/10, Vis. good
		08.00	ED 2720
			E 3-4, Sea 3, 2/10, Vis. good
		11.15	ED 2490	Difference between dead reckoning and actual position after a navigation fix 40°T, 14 nm.
		12.00	ED 2570	Day's run:  Surfaced 208 nm
			E 3, Sea 2, 3/10, Vis. good
		15.00		Test dive.
		15.40	ED 2580	Surfaced.
			E 3, Sea 2-3, 3/10, Vis. good
		16.00	ED 2550
			E 3, Sea 2-3, 3/10, Vis. good
		20.00	ED 2640	On course 10°, speed 9 knots.
			E 2-3, Sea 2, 1/10, Vis. good

	Sun and Moon Data 18.06.42
	Sun and Moon Data 19.06.42
	Sun and Moon Data 20.06.42

	- 31 -
		21.06.42
		00.00	ED 2350
			E 2, Sea 1, 1/10, Vis. good
		04.00	DO 8980
			E 2, Sea 1-2, 2/10, Vis. good
		08.00	DO 9440
			E 2, Sea 1-2, 2/10, Vis. good
		12.00	DO 9440	Day's run:  Surfaced 225 nm
			E 2, Sea 1-2, 2/10. Vis. good
		16.00	DO 9180
			E 2, Sea 0-1, 2/10, Vis. good
		20.00	DO 9130
			E 2, Sea 1, 3/10, Vis. good
		22.06.42
		00.00	DO 6870
			E 2, Sea 0-1, 2/10, Vis. good
		03.00	DO 6820	Came to course 35°, speed 10 knots.
		04.00	DO 6830
			NE 2, Sea 1, 3/10, Vis. good
		08.00	DO 6640
			NE 2, Sea 1, 3/10, Vis. good
		12.00	DO 6390	Day's run:  Surfaced 240 nm
			NE 2, Sea 1, 3/10, Vis. good
		16.00	DP 1770
			NE 2, Sea 1, 3/10, Vis. good
		20.00	DP 1750
			NE 2, Sea 1, 3/10, Vis. good
		21.00	DP 1730	On course 37°, speed 10 knots.
		23.06.42
		00.00	DP 1810
			N 1, Sea 0-1, 2/10, Vis. good
		01.30	DP 1550	Difference between dead reckoning and actual position after a navigation fix 270°T, 14 nm.
		04.00	DP 1550
			NE 1, Sea 0-1, 2/10, Vis. good
		08.00	DP 1530
			Wind 0, Sea 0, 2/10, Vis. good
		12.00	DP 1350	Day's run:  Surfaced 218 nm
			Wind 0, Sea 0, 2/10, Vis. good
		15.21	DP 1330	Test dive.
		15.34	DP 1330	Surfaced.
			Wind 0, Sea 0, 2/10, Vis. good
		16.00	DP 1330
			Wind 0, Sea 0, 2/10, Vis. good., light Swell
		20.00	DD 9860
			Wind 0, Sea 0, 2/10, Vis. good
		24.06.42
		00.00	DD 9670
			Wind 0, Sea 0, 2/10, Vis. good

	Sun and Moon Data 21.06.42
	Sun and Moon Data 22.06.42
	Sun and Moon Data 23.06.42
	Sun and Moon Data 24.06.42

	- 32 -
		continued
		24.06.42
		04.00	DD 9650
			Wind 0, Sea 0, 2/10, Vis. good
		08.00	DE 7170	Came to course 45°, speed 10 knots.
			Wind 0, Sea 0, 2/10, Vis. medium, hazy
		12.00	DE 7120	Day's run:  Surfaced 235 nm, Submerged 1 nm
			Wind 0, Sea 0, 1/10, Vis. good
		16.00	DE 4790
			Wind 0, Sea 0, 1/10, Vis. good
		20.00	DE 4820	New course 48°, speed 10 knots.
			Wind 0, Sea 0, 2/10, Vis. good
		25.06.42
		00.00	DE 4830
			Wind 0, Sea 0, 4/10, Vis. good
		04.00	DE 4620
			Wind 0, Sea 0, 4/10. Vis. medium, hazy
		08.00	DE 4360
			Wind 0, Sea 0, 4/10, Vis. medium, hazy
		12.00	DE 5110	Day's run:  Surfaced 240 nm
			Wind 0, Sea 0, 3/10, Vis. good
		16.00	DE 2760
			E 1, Sea 0, 3/10, Vis. good
		20.00	DE 2810
			E 0-1, Sea 0, 4/10, Vis. good
		26.06.42
		00.00	DE 2590
			NE 0-1, Sea 0, 2/10, Vis. good
		01.10		Difference between dead reckoning and actual position after a navigation fix 270°T, 20 nm.
		04.00	DE 2640
			E 0-1, Sea 0, 1/10, Vis. good
		08.00	DE 2380
			E 0-1, Sea 0. 1/10, Vis. medium, hazy
		12.00	DE 3120	Day's run:  Surfaced 240 nm
			SSE 1, Sea 0-1, 10/10, Vis. good, rain showers
		16.00	DE 3120
			SSE 1, Sea 0-1, 10/10, Vis. good, rain showers
		20.00	CC 9970
			E 1, Sea 1-2, 4/10, Vis. good
		21.57		Radio Message 2010/26/140/202:
				Brest for Feiler, Lorient for Poske, Hartenstein, U-159, Rosenstiel, Gelhaus.
				Nazaire for Hellriegel, Dieterichs, Prätorius, Rehwinkel, Pallice for Hinsch, Löser.
		22.00		New course 58°, speed 10 knots.

	Sun and Moon Data 24.06.42
	Sun and Moon Data 25.06.42
	Sun and Moon Data 26.06.42

	- 33 -
		27.06.42
		00.00	CC 9930
			E 1, Sea 0-1, 1/10, Vis. good
		04.00	CD 7480
			E 0-1, Sea 0, 0/10, Vis. medium, hazy
		08.00	CD 7540	New course 61°, speed 10 knots.
			E 1, Sea 0-1, 10/10, Vis. medium
		12.00	CD 7530	Day's run:  Surfaced 237 nm
			E 1, Sea 0-1, 4/10, Vis. good
		15.16	CD 7370	Test dive.
		16.00	CD 7370
		16.10	CD 7370	Surfaced.
			SE 0-1, Sea 1-2, 3/10, Vis. good
		20.00	CD 7360
			E 1-2, Sea 1, 2/10, Vis. good
		28.06.42
		00.00	CD 8110
			E 1, Sea 0-1, 2/10, Vis. good
		04.00	CD 5790
			E 1-2, Sea 1, 1/10, Vis. good
		08.00	CD 5850
			Wind 0, Sea 0, 2/10, Vis. good, light Swell
		12.00	CD 5910	Day's run:  Surfaced 236 nm, Submerged 2 nm
			Wind 0, Sea 0, 1/10, Vis. good
		16.00	CD 5680
			E 0-1, Sea 0, 1/10, Vis. good, light Swell
		20.00	CD 6440
			E 0-1, Sea -, 2/10, Vis. good, light Swell
		21.30		Difference between dead reckoning and actual position after a navigation fix 90°T, 8 nm.
		29.06.42
		00.00	CD 6430
			E 0-1, Sea 0, 1/10, Vis. good
		04.00	CD 6280
			E 0-1, Sea 0, 2/10, Vis. good
		08.00	CD 6340
			E 0-1, Sea 0, 1/10, Vis. good
		12.00	CD 6330	Day's run:  Surfaced 242 nm
			E 0-1, Sea 0, 2/10, Vis. good
		15.15	CD 1770	Test dive.
		16.00	CE 1780
		16.20	CE 1780	Surfaced.
			E 0-1, Sea 0, 2/10, Vis. good
		16.55	CE 1780	2 steamers came in sight bearing 320°, 13 nm away.

	Sun and Moon Data 27.06.42
	Sun and Moon Data 28.06.42
	Sun and Moon Data 29.06.42

	- 34 -
		continued
		29.06.42
		17.05		Dived.
		17.22		Course 63°, speed 2.5 knots.
		17.39		On the side of the hull the steamers had Swedish neutrality markings painted.  It was thought to be the Swedish steamers "MARGARETE JOHNSON" and "SKOGALAND" reported in Radio Message 1958/26/23/141/20.
		18.26	CE 1780	Surfaced and continued on course 65°, speed 10 knots.
			E 0-1, Sea 0, 1/10, Vis. good
		18.51		Outgoing Radio Message 1803/29/268:
				Naval square CE 1750 Swedish "MARGARETE JOHNSON" and "SKOGALAND" southerly course.
				Poske.
		19.20		The two steamers pass out of sight.
		20.00	CE 1790
			E 0-1, Sea 0, 1/10, Vis. good, light Swell
		22.02	CE 1840	Smoke feather bearing 210°T, 14 nm away.  Enemy course 0°.
		22.15		Course 45°, speed 15 knots.
		22.32		At 16 knots on course 55° and 65°.
				This steamer was thought to be one of the homebound Swedes.  Details could not distinguished with certainty.
		22.48		Came to 12 knots.
		23.16		Again came to transit speed 10 knots.
		23.25		The steamer passed out of sight.
		30.06.42
		00.00	CE 1850
			E 1, Sea 0-1, 1/10, Vis. good
		04.00	CE 1910
			E 1, Sea 0-1, 2/10, Vis. good
		08.00	CE 1690
			S 1-2, Sea 1, 8/10, Vis. good
		12.00	CE 2450	Day's run:  Surfaced 238 nm, Submerged 3 nm
			S 2-3, Sea 2, 3/10, Vis. good
		16.00	CE 2510	Difference between dead reckoning and actual position after a navigation fix 90°T, 12.5 nm.
			S 3-4, Sea 2-3, 3/10, Vis. good
		19.00		Incoming Radio Message 1750/30/188/293:
				Report weather: Löser, Diggins, Gelhaus.
				2)  Poske 1 July at 08.00 hours switch to Ireland Circuit.
		20.00	CE 2380	Course 70°, speed 10 knots.
			SW 3-4, Sea 3, 3/10, Vis. good
		01.07.42
		00.00	CE 2360
			SW 3-4, Sea 3, 3/10, Vis. good

	Sun and Moon Data 29.06.42
	Sun and Moon Data 30.06.42
	Sun and Moon Data 01.07.42

	- 35 -
		continued
		01.07.42
		04.00	CE 3150
			SW 3-4, Sea 3, 5/10, Vis. good
		08.00	CE 3220	Course 70°, speed 10 knots.
			SW 3-4, Sea 3, 9/10, Vis. good
		12.00	BD 9980	Day's run:  Surfaced 238 nm
			W 3-4, 8/10, Vis. good
		16.00	BD 9960
			W 4, Sea 3, 5/10, Vis. good
		20.00	BE 7750
			W 3, Sea 2-3, 2/10, Vis. good
		02.07.42
		00.00	BE 7760	Difference between dead reckoning and actual position after a navigation fix 250°T, 16 nm.
			W 4, Sea 3, 5/10, Vis. good
		04.00	BE 7820
			W 4, Sea 3, 6/10, Vis. good
		08.00	BE 7670
			SSW 5, Sea 4, 6/10, Vis. good
		11.15	BE 7650	Test dive.
		11.55	BE 7650	Surfaced.
			SW 6, Sea 5, 10/10, Vis. medium
		12.00	BE 7650	Day's run:  Surfaced 220 nm, Submerged 1.5 nm
			SW 6, Sea 5, 10/10, Vis. medium
		16.00	BE 8440
			SW 6, Sea 5, 8/10, Vis. good
		20.00	BE 8430
			SW 6, Sea 5, 10/10, Vis. medium
		03.07.42
		00.00	BE 8270
			SW 6, Sea 5, 10/10, Vis. god
		04.00	BE 8260
			SW 6, Sea 5, 10/10, misty
		12.00	BE 9110	Day's run:  Surfaced 236 nm
			SW 5, Sea 4, 10/10, misty rain showers
		16.00	BE 6780
			SW 5, Sea 4, 10/10, misty, rain showers
		18.45	BE 6840	Course 90°, speed 15 knots.
		20.00	BE 6850
			SW 5, Sea 4, 10/10, Vis. bad, drizzle
		04.07.42
		00.00	BE 6940
			SW 5, Sea 4, 10/10, Vis. 500-1000 meters, rain showers
		04.00	BF 4740
			SW 6, Sea 5, 10/10, Vis. 500-1000 meters, misty, rain showers

	Sun and Moon Data 01.07.42
	Sun and Moon Data 02.07.42
	Sun and Moon Data 03.07.42
	Sun and Moon Data 04.07.42

	- 36 -
		continued
		04.07.42
		06.00	BF 4750	Dived to proceed submerged.  Course 90°, speed 2.5 knots.
		08.00	BF 4750
		12.00	BF 4760	Day's run:  Surfaced 234 nm, Submerged 14 nm
		16.00	BF 4840
		20.00	BF 4840
		23.42	BF 4850	Surfaced, course 90°, speed 11 knots.
			SW 5, Sea 4, 5/10, Vis. good
		05.07.42
		00.00	BF 4850
			SW 4-5, Sea 4, Vis. good, 2/10
		03.23	BF 4940	Crash dive before a fast approaching vessel, that was sighted in 10°T, 6000 meters range.  Approximate course 170°.
		04.00	BF 4940
		08.00	BF 4940
		12.00	BF 4950	Day's run:  Surfaced 46 nm, Submerged 40 nm
		16.00	BF 4950
		20.00	BF 4950
		23.32	BF 4950	Surfaced to proceed on the surface on course 90°, speed 11 knots.
			SW 4, Sea 3, 4/10, Vis. good
		23.45		Difference between dead reckoning and actual position after a navigation fix 140°T, 21 nm.
		06.07.42
		00.00	BF 4950
			SW 4, Sea 3, 4/10, Vis. good
		00.21		Avoidance maneuver for fishermen.
		00.26		Short Signal
				Position off return harbor in 30 hours.
		01.07		Incoming Radio Message 0042/6/80:
				Poske will be off Lorient 7 July 06.30 hours.  Signal was heard with Volume 5.
		04.00	BF 5750
			SW 3-4, Sea 2-3, 4/10, Vis. good
		05.15	BE 5760	Dived to proceed submerged on course 45°.
		08.00	BF 5840
		12.00	BF 5810	Day's run:  Surfaced 44 nm, Submerged 36 nm
		16.00	BF 5810
		20.00	BF 5810
		23.20	BF 5570	Surfaced, speed 15 knots.
			SW 3-4, Sea 2-3, 6/10, Vis. good

	Sun and Moon Data 04.07.42
	Sun and Moon Data 05.07.42
	Sun and Moon Data 06.07.42

	- 37 -
		07.07.42
		00.00	BF 5570
			SW 3-4, Sea 2-3, 6/10, Vis. good
		04.00	BF 5530
			SW 3-4, Sea 2-3, 6/10, Vis. good
		06.27		Taken in convoy (Point L 2) Sperrbrecher.
		08.10	Lorient	Made fast.  Berth A 3.
				Day's run:  Surfaced 94 nm, Submerged 29 nm
				K.Kapt. and Kommandant.

Sun and Moon Data 07.07.42

 

	Enclosures to U-504's KTB - click on the text at left to proceed to the document
ChartA	Track chart covering the entire patrol 2 May - 7 July 1942
ChartB	Track chart of the period in the operations area 29 May - 15 June 1942

 

	Comments of the Befehlshabers der Unterseeboote
	on the Kriegstagebuch of "U 504" from 1.4.42 to 7.7.42.
	In comparison to the encountered independent traffic, the success could have been greater with a little more luck and fewer misses.  The behavior on 20 May was clumsy.  When a shadow is sighted it is necessary to maintain contact until the course of the enemy can be determined.
		Signed in draft:    D  ö  n  i  t  z  .
		For correctness:
		Leutnant z.S. and Adjutant

---

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