U-173 - 1st War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed	Date	Arrived	Date	Days at Sea
Kiel	15 June 1942	Lorient	20 September 1942	98

 

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

None

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
			Unterseebootes  "  U  173  "
			1st Patrol
			Beginning:  7 June 1942
			Ending    :   20 September 1942
			Patrol under Operations Order No. 50
			Times:  D.G.Z.
			All naval squares
			Kommandant:  Korv.-Kapt,    B  e  u  c  k  e
			Distribution: 2 x O.K.M.     1 x B.d.U.     1 x 2. A.d.U.-Boote     1 x 2. U-Flottille     1 x 27. U-Flottille     1 x Agru-Front.
				© U-boat Archive 2023 - all rights reserved

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

	- 1 -
		07.06.42	Stettin, Harbor
		15.20		Put to sea from U-boat base.
		08.06.42	Central, western Baltic	Transit to diving square at Hela.  Independent training, Transit to Kiel.
		09.06.42	Kiel, Wik	Radio Direction finder calibration, degaussing.
		until	U-boat Base	Dry-docked, magnetic compass calibration, outfitting.
		15.06.42
		15.06.42
		07.00	Kiel, U-boat Base	Departed for Kristiansand South together with U-255.
		08.00	AO 7723	Position.
		10.00		Taken in convoy behind Sperrbrecher.
		12.00	AO 7469	Position, day's run:  48 nm
		16.00	AO 7192	Position.
		18.00	Kattegat	Escort changed, Vorpostenboot.
		20.00	AO 4799	Position.
		24.00	AO 4761	Position.
		16.06.42
		04.00	AO 4491	Position.
		08.00	AO 4443	Position.
		09.03		Dived.  Test dive.
		09.54		Surfaced.
		12.00	AN 3637	Position, day's run:  210 nm
		16.00	AN 3615	Position.
		16.35	Kristiansand South	Made fast, oil supply.
		17.06.42	Skagerrak, northern North Sea
		06.00		Put to sea from Kristiansand South.
		06.26		Dived, test dive.
		06.45		Surfaced.
		06.45		Taken in convoy, Vorpostenboot, transit under the Norwegian coast.
		08.00	AN 3539	Position.
			WSW 1, Sea 1, 9/10, 1006 mb, +12°C
		12.00	AN 3521	Position, day's run:  150 nm     5 nm
		16.00	AN 3168	Position.
		17.45		Released escort for Stavanger.
		20.00	AN 3113	Position.
		22.22		Crash dive for training, afterwards test dive depth A +40 meters.
		23.25		Surfaced.

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

	- 2 -
		18.06.42	Northern North Sea
		24.00	AN 2893	Position.
		04.00	AN 2359	Position.
		05.31		Crash dive for aircraft, was unseen.
		06.25		Surfaced.
		08.00	AN 2322	Position.
			W 2-3, Sea 3, 9/10, 1005, +12°C, high Swell
		12.00	AF 8742	Position, day's run:  147 nm     12 nm
		14.00	AF 8715	2 large steamers in sight bearing 270°T on southerly course, distance 8 nm.  The steamers were seen very late.  Because a maneuver ahead would bring me to the limit of the German mine warning area, I refrain from an attack.  I suspect Swedish.  One of the two steamers apparently had a red cross on its smokestack. (hospital ship?)
		14.45		Outgoing Radio Message:  My position is AF 8718.
		16.00	AF 8749	Position.
		20.00	AF 8448	Position.
		20.34		Crash dive for aircraft, was unseen, afterwards depth control training in high Swells.
		22.30		Surfaced.
		24.00	AF 7639	Position.
		19.06.42	North Sea
		04.00	AF 7397	Position.
		08.00	AF 7358	Position.
			NNW 1-2, Sea 3, 3/10, 1024 mb, +12°C
		12.00	AF 7319	Position, day's run:  160 nm
		16.00	AF 7311	Position.
		16.10		Crash dive for aircraft.
		18.21		Surfaced.
		20.00	AF 4892	Position.
		24.00	AF 4857	Position.
		20.06.42	North Sea
		04.00	AF 4841	Position.
		08.00	AF 4726	Position.
			NNW 1-2, 2/10, 1025 mb, +10°C
		12.00	AF 4711	Position, day's run:  152 nm     15 nm  = 167 nm
		15.53		Crash dive for training.
		16.00	AE 6923	Position.
		16.33		Surfaced.
		20.00	AE 6594	Position.
		24.00	AE 6821	Position.
		21.06.42	North Sea
		04.00	AE 6766	Position.
		08.00	AE 6789	Position.
			WSW 1, Sea 1, 1018 mb, +10°C
		12.00	AE 9143	Position, day's run:  154 nm     6 nm
		16.00	AE 8396	Position.
		20.00	AE 8629	Position.
		24.00	AE 8655	Position.

	Sun and Moon Data 18.06.42
	Sun and Moon Data 19.06.42
	Sun and Moon Data 20.06.42
	Sun and Moon Data 21.06.42

	- 3 -
		22.06.42	North Atlantic
		04.00	AE 8678	Position.
		08.00	AE 8862	Position.
			SE 1, Sea 1, 1010 mb, +9°C, Vis. greatly changing
		10.32		Test dive.
		10.40		Fire control training submerged.  During the all around sweep before surfacing at 11 meters strongly smoking steamer in sight bearing 50°T, course east, distance 8000 meters.  Steamer was estimated at just over 1000 tons, coastal steamer or patrol vessel.  Attack does not seem worthwhile or appropriate to me.  Due to visibility deterioration passes out of sight quickly.
		11.50		Surfaced.
		12.00	AE 8883	Position, day's run:  122 nm     5 nm
		16.00	AM 1126	Position.
		20.00	AM 1149	Position.
		24.00	AL 3431	Position.
		23.06.42	North Atlantic
		04.00	AL 3511	3 days since the last navigation fix, offset about 60 nm.
		08.00	AL 2659
			NW 1, 10/10, 1020 mb, +14°C
		12.00	AL 2684	Position, day's run:  186 nm
		16.00	AL 2796	Position.
		20.00	AL 2928	Position.
		24.00	AL 2948	Position.
		24.06.42	North Atlantic
		04.00	AL 5111	Position.
		07.00		Sent Short Signal weather report on request:  56°N, 29°W, steady, 1008 mb, +12°C, 9-10/10 Nimbus, Vis. up to 10 nm, Sea 1, no Swell.
		08.00	AL 4253	Position.
			S 1, Sea 1-2, 10/10, 1026 mb, +14°C
		09.53		Dived.
		11.45		Surfaced.
		12.00	AL 4249	Position, day's run:  187 nm     5 nm
		16.00	AL 4431	Position.
		20.00	AL 4489	Position.
		24.00	AL 4718	Position.
		25.06.42
		04.00	AK 6967	Position.
		04.15		Crash dive for training, dived due to thick fog.
		07.15		Surfaced.
		08.00	AK 9313	Position.
			SW 1, Sea 0-1, 9/10, 1030 mb, +14°C, Vis. greatly changing
		08.36		Dived again due to fog, flushed the empty regulating and reserve fuel oil tank.
		12.00	AK 9262	Surfaced, position, Day's run:  132 nm     20 nm
		16.00	AK 9219	Position.
		20.00	AK 9168	Position.
		24.00	AK 9421	Position.

	Sun and Moon Data 22.06.42
	Sun and Moon Data 23.06.42
	Sun and Moon Data 24.06.42
	Sun and Moon Data 25.06.42

	- 4 -
		26.06.42	North Atlantic
		04.00	AK 9441	Position.
		08.00	AK 8691	Position.
			SSW 4, Sea 4, increasing, 10/10, 1022 mb, +15°C
		10.36		Crash dive for training, afterwards proceeded submerged, because the boat pounded strongly in the heavy swells.
		12.00	AK 8921	Position, day's run:  151 nm     5 nm
		16.00	AK 8924	Position.
		18.53		Surfaced.
		20.00	AK 8916	Position.
		21.35		Outgoing Radio Message:  Request meeting with Schäfer, because for 6 days the First Watch Officer has had tooth and jaw discomfort with glandular swelling.  Onboard means have not helped.  Position AK 88, SW 5, fog, +12°C, 1009 mb falling.
		21.45		Dived due to thick fog.
		24.00	AK 8918	Position.
		27.06.42	North Atlantic
		04.00	AK 8941	Position.
		05.00		Surfaced.
		05.43		Incoming Radio Message:  1)  Meeting point Schäfer, Beucke on 30 June at 10.00 hours in LF 1575.  From 12.00 hours bearing signals from Beucke.  Patient treatment and filling with fuel.  Beucke report execution and inventory of the tanker.  2.)  etc.
		08.00	AK 8868	Position.
			SW 4-5, Sea 5, 10/10, 1016 mb, +16°C
		12.00	AK 8888	Position, day's run:  60 nm     29 nm
		16.00	BD 2166	Position.
		20.00	BD 2145	Position.
		24.00	BD 1393	Position.
		28.06.42	North Atlantic
		04.00	BD 1631	Position.
		08.00	BD 1652	Position.
			SW 1-2, Sea 2, 10/10, 1024 mb, +14°C
		12.00	BD 1673	Position, day's run:  128 nm
		16.00	BD 1836	Position.
		16.10		Test dive, Kommandanten muster.
		16.25		Surfaced.
		17.50		Smoke feather in sight bearing 270°T.
		18.00		To the right of the smoke feather suddenly from the light haze a black wall like a destroyer.  In order not to be seen, crash dive!  Submerged recognized that the steamer ejects thick smoke every 1-2 minutes.  The destroyer was therefore an illusion.  The smoking seemed to me at the moment suspicious.  Steamer bearing barely shifted out.
		18.38		Surfaced, only smoke and the forward mast of the steamer is recognized.

	Sun and Moon Data 26.06.42
	Sun and Moon Data 27.06.42
	Sun and Moon Data 28.06.42

	- 5 -
		continued
		28.06.42
		18.38		Maneuvered ahead.
		19.06		Port lookout reported a periscope abeam to port 500 meters.  Hard to starboard.  On easing ruder failure.  Thereupon I ordered crash dive.  The lookout swore to have seen a thick night periscope which was thought to be a U-boat trap working with a submarine.  However, listening and all around sweep give no indication of a submarine.  Cautiously I ran off a bit.
		20.00		The steamer is now in sight in 330°T, 4 nm away.  2 masts, 1 smokestack, about 4000 tons.  By plotting it runs about 9 knots, course 65°.  It now smokes only moderately, seems harmless, moved away from him to the limit of visibility.
		21.00		Surfaced, steamer bears 0°T, 10 nm away.  Maneuvered ahead.  Reported the steamer by Short Signal, to possibly hear if the steamer is neutral.
		29.06.42	North Atlantic
		00.17		Am positioned ahead of the steamer, dived for twilight attack.
		00.45		Steamer has set lights.  I looked at him from 100 meters away.  He is Irish, prescribed illumination, certainly unarmed.  Let him go, without stopping.
		01.37		Surfaced, course for the meeting point with Schäfer.
				Outgoing Radio Message:  Steamer was Irish, did not stop.  Position VO 3683 inexact.  On time at meeting point with Schäfer only at higher speed, running at 11 knots.  S 1, light Swell, 1009 mb, +15°C, steady.
				- Beucke -
		02.10		Shadow in sight ahead.  Turned stern to.  Steamer lays beam on, bearly shifeted in 10 minutes, then suddenly out strongly.  Maneuvered ahead 1/2 hour.  Steamer bearing stays fixed.  Have the feeling that he has seen or heard us.  The night is very bright.  Turned towards the steamer despite target angle 90°.  At 2500 meters it is easily seen with the naked eye.  Suddenly barely shifted, had nearly stopped.  Shot from 2000 meters 1 Ato and thereafter a 2-fan Eto.
				Range = 2000 meters, target speed = 7 knots, target angle  = 90°, torpedo speed = 40 knots, lead angle = +10°.
				Range = 1800 meters, target speed = 3 knots, target angle = 92°, torpedo speed = 30 knots, lead angle = +10°
				Firing angle 22.3°, Target bearing   4.15°.
				Firing angle 11.7°, depth = 3 meters, tubes I-III.
				Miss.
				The fast independent was about 5000-6000 tons.  Because I am convinced that the fellow detected me I let him go.  Possible trap.
		04.00	BD 1673	Position.

	Sun and Moon Data 28.06.42
	Sun and Moon Data 29.06.42

	- 6 -
		continued
		29.06.42
		08.00	BD 1835	Position.
			SSW 1, Sea 1, 10/10, 1020 mb, +17°C
		09.35		Incoming Radio Message:  To Beucke, arrive at meeting point 24 hours later.
		12.00	BD 1873	After 6 days finally a navigation fix.  The sun shone through.  Offset nearly 100 nm to the SW.  Day's run (including that sailed) 310 nm    10 nm
		16.00	BC 6665	Corrected position.
		20.00	BC 6689	Position.
		20.30		Test dive.
		21.06		Surfaced.
		24.00		Position.
		30.06.42	North Atlantic
		04.00	BC 9311	Position.
		08.00	BC 9265	Position.
			NW 2, Sea 2, 10/10, 1019 mb, +17°C
		12.00	BC 9297	Position, day's run:  188.5 nm     1.5 nm
		16.00	BC 9554	Position.
		17.18		Schäfer in sight.  Agreed that oil transfer would be attempted about 21.00 hours because the Sea State was still too high.
		20.00	BC 9578	Position.
		21.40		Oil taken over.  Transfer of the patient is not possible, delayed until morning.
		24.00	BC 9572	Position.
		01.07.42	Central Atlantic
		00.30		Oil take over ended.    Afterwards U-402 takes over.  Agreed on meeting point for dawn.
		01.54		Test dive.
		02.18		Surfaced.
		04.00	BC 9554	Position.
		08.00	BC 9551	Position.
			WSW 4, Sea 4, 9/10, 1017 mb, +17°C	At lightness Schäfer not in sight.  Search unsuccessful.  The wind freshens significantly from the SW.
		12.00	BC 9551	Position, day's run:  100 nm     1.5 nm  .   Have hove to.  Sent bearing signals several times for Schäfer.
		16.00	BC 9551	Position.
				Because Schäfer does not approach, I ran to the original meeting place and moved back and forth there.  Gave corresponding Short Signal.
		20.00	BC 9575	Position.
		23.35		Submerged for the night.  Sea State is 6-7 to the west.
		24.00	BC 9575	Position.

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

	- 7 -
		02.07.42	Central Atlantic
		04.00	BC 9575	Position.
		08.00	BC 9575	Position.
			W 6-7, 10/10, 1018 mb, +17°C
		08.x7		Surfaced.
		11.40		Because the wind and Sea State has not decreased, I suggest shifting the meeting point to CC 60 by Short Signal..
		12.00	BC 9545	Position, day's run:  40 nm     16 nm
		12.50		Incoming Radio Message:  Schäfer take over leadership of meeting with Beucke.
		16.00	BC 9734	Position by sun navigation fix.
		19.31		Radio Message from B.d.U.:  "Beucke" by report of U-402 oiling was settled.  If further oiling is necessary, report how much oil was taken over.
		20.00	BC 9755	Position.
		21.17		Radio Message was answered:  Due to weather no patient treatment.  WB 1755, W 4, Sea 4, abating.
		24.00	BC 9776	Position.
		03.07.42	Central Atlantic
		04.00	CD 1338	Position.
		08.00	CD 1358	Position.
			W 2, Sea 1-2, 10/10, 1024 mb, +21°C
		12.00	CD 1376	Position, day's run:  150 nm
		15.40		Dived.
		16.00		Surfaced.
		16.00	CD 1373	Position.
		20.00	CD 1539	Position.
		24.00	CD 1563	Position.
		04.07.42	Central Atlantic
		04.00	CD 1562	Position.
		08.00	CD 1520	Position.
			Wind 0, Sea 0, 10/10, 1030 mb, +24°C
		12.00	CD 1529	Position, day's run:  70 nm     1 nm
		12.00		Dived to listen.
		12.25		Surfaced.
		15.30		Dived to listen.
		15.50		Surfaced.
		16.00	CD 1554	Position.
		17.10		U-460 in sight.
		17.55 - 19.30	CD 1555	Meeting with supply boat U-460.
				Patient treatment, took over 300 kg of provisions.
		20.00	CD 1555	Position.
		24.00	CD 1574	Position.

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

	- 8 -
		05.07.42	Central Atlantic
		01.07		The execution of the patient treatment by Schäfer was reported by Short Signal:  Have completely finished supply task.
		04.00	CD 1734	Position.
		08.00	CD 1746	Position.
			SW 1, Sea 1, 2/10, 1029 mb, +24°C
		12.00	CD 3996	Position, day's run:  164 nm     2 nm
		16.00	CD 6346	Position.
		20.00	CC 6295	Position.
		24.00	CC 6527	Position.
		06.07.42	Central Atlantic
		01.40		Dived, test dive.
		01.59		Surfaced.
		04.00	CC 6542	Position.
		08.00	CC 6723	Position.
			SW 2, Sea 1-2, 9/10, 1023 mb, +24.5°C
		12.00	CC 6742	Position, day's run:  191.5 nm     0.5 nm
		16.00	CC 5992	Position.
		16.45		Several steamers in sight abeam to port, bearing 130°T.  After 1/2 hours plotting have the impression that the enemy steers 340°, 9 knots.
		18.15		Dived with enemy bearing 150°T, to run before the seas during the attack.
				Steamers turn out to be one independent, its bridge, bow, and stern each with one mast pretending to be three steamers.
				It steers 0-30°, so that I do not get close.  He passes by at target angle 90° at range = 5000 meters.
		19.23	Moved off submerged.
		19.50		Surfaced, because the steamer was no longer seen in the periscope.
		19.51		Crash dive, steamer bearing 90°, 4 nm.
		20.16		Steamer still lies on a northerly course, apparently had not seen us.  Moved off submerged to the west.
		20.59		Surfaced.
				Steamer out of sight.  Pursued on course 30°, then 65° and 90°.  Steamer not found.  Steamer was estimated at 3000-4000 tons, high bridge, very low cargo hatches.
		07.07.42	Central Atlantic
		01.00		Search broken off, came to old course (229°).
		04.00	CC 6747	Position.
		08.00	CC 5997	Position.
			SSW 1-2, Sea 2, 10/10, 1019 mb, +24°C
		12.00	CC 8383	Position, day's run:  193 nm     10 nm
		16.00	CC 8347	Position.
		20.00	CC 8293	Position.
		24.00	CC 8528	Position.

	Sun and Moon Data 05.07.42
	Sun and Moon Data 06.07.42
	Sun and Moon Data 07.07.42

	- 9 -
		08.07.42	Central Atlantic
		04.00	CC 8558	Position.
		08.00	CC 8578	Position.
			W 1, Sea 1, 2.10, 1021 mb, +25°C
		12.00	CC 8738	Position, day's run:  168 nm
		16.00	CC 8757	Position.
		17.52		Crash dive for training.
		18.12		Surfaced.
		20.00	CC 7996	Position.
		24.00	DE 1226	Position.
		09.07.42	Central Atlantic
		01.32		Outgoing Radio Message:  Junkers compressor crank case cracked.  Welded unsuccessfully.  Suggest spare parts from supply boat.  Naval square DE 12, W 1, Sea 1, +27°C, 1025 mb, steady.
		04.00	DE 1278	Position.
		05.28		Lookouts report green star, which rose over the horizon and fell again, ran towards it in 350°, for 20 nm.
		07.21		Because it was possible the star was shot from U-158.
				Outgoing Radio Message:  Naval square CD 1274 green star.  Search so far without results, question Rostin.
		07.39		Dived to listen, temporarily faint sounds in 340-0°T.
		08.00	DE 1169	Position (W 1, Sea 1, 3/10, 1024 mb, +26°C)
		08.30		Surfaced.
		08.43		Incoming Radio Message:  From B.d.U.:  Position Rostin unlikely, despite this continue searching for one day.  Caution for enemy U-boats.
		09.21		The accidentally wrongly specified square at 07.21 hours in Radio Message was corrected by Short Signal:  My position is naval square DE 12.
		12.00	CE 1247	Position, day's run:  183 nm     3 nm
				The entire day search up to 25 nm around the suspected sighting location of the green star.
		16.00	DE 1249	Position.
		20.00	DE 1137	Position.
		22.00		Broke off the search, reported by Radio Message:
		24.00	DE 1167	Position.
		10.07.42
		04.00	DE 1421	Position.
		08.00	DE 1441	Position.
			SSW 1-2, Sea 1, 1028 mb, +28°C
		12.00	DD 3932	Position, day's run:  204 nm
		15.55		Crash dive for training.
		17.02		Position.
		20.00	DD 3973	Position.
		24.00	DD 6262	Position.

	Sun and Moon Data 08.07.42
	Sun and Moon Data 09.07.42
	Sun and Moon Data 10.07.42

	- 10 -
		11.07.42	Central Atlantic
		04.00	DD 6256	Position.
		08.00	DD 6276	Position.
			S 1, Sea 0-1, 3/10, 1025 mb, +27C
		12.00	DD 6436	Position, day's run:  161 nm     2 nm
		16.00	DD 6456	Position.
		20.00	DD 5695	Position.
		24.00	DD 5925	Position.
		12.07.42	Central Atlantic
		04.00	DD 5945	Position.
		08.00	DD 5825	Position.
			WSW 1, Sea 0-1, 2/10, 1024 mb, +28.5°C
		12.00	DD 8225	Position, day's run:  168 nm
		16.00	DD 8245	Position.
		19.43		Dived, crash dive for training.
		20.00	DD 8195	Position, surfaced.
		24.00	DD 8425	Position.
		13.07.42	Central Atlantic
		04.00	DD 8445	Position.
		08.00	DD 7695	Position.
			S 1, Sea 0-1, 3/10, 1025 mb, +28°C
		12.00	DD 7924	Position, day's run:  166 nm     0.5 nm
		15.47		Crash dive for training, boat went to depth = A meters, Failures inserted.
		16.00	DD 7945	Position.
		16.09		It was reported that Matr.Gefr. Schmidt was missing.
		16.15		Surfaced, ran back.
				Man is rescued.  Schmidt was using the over deck WC, the watch had not paid attention.
		16.30		Clocks set back 4 hours.
		13.00		Crash dive for training, instruction regarding the above case.
		13.30		Surfaced.
		16.00	DD 7895	Position
		16.32		Crash dive for training.
		17.02		Surfaced.
		20.00	DO 2147	Position.
		24.00	DO 1389	Position,
		14.07.42	Central Atlantic
		04.00	DO 1614	Position.
		08.00	DO 1553	Position.
			S 1, Sea 0-1, 3/10, 1022 mb, +28°C
		12.00	DO 1571	Position, day's run:  189 nm     3 nm
		15.50		Crash dive for training.
		16.00	DO 1723	Position.
		16.45		Surfaced.
		20.00	DO 1717	Position
		24.00	DN 3694	Position.

	Sun and Moon Data 11.07.42
	Sun and Moon Data 12.07.42
	Sun and Moon Data 13.07.42
	Sun and Moon Data 14.07.42

	- 11 -
		15.07.42	Central Atlantic
		04.00	DN 3973	Position.
		08.00	DN 6251	Position.
			E 1, Sea 0-1, 7/10, 1020 mb, +27°C
		12.00	DN 6192	Position, day's run:  180 nm     2 nm
		16.00	DN 6179	Position.
		20.00	DN 5638	Position.
		24.00	DN 5645	Position.
		16.07.42	Caicos Passage
		04.00	DN 5563	Position.
		08.00	DN 5558	Position.
			E 2, Sea 1-2, 5/10, 1018 mb, +29°C
		10.50		Incoming Radio Message:  Pfeffer and Beucke via previous objective and DL 60 go to DA 80 and 90.  Focal point DA 8120.  All naval squares.
		12.00	DN 5567	Position, day's run:  176 nm
		15.00		Crash dive for training.
		16.00	DN 5832	Position.
		20.00	DN 5846	Position.
		24.00	DN 5783	Position.
		17.07.42	Windward Passage
		04.00	DN 8111	Position.
		08.00	DN 7353	Position.
			WNW 1-2, Sea 1-2, 8/10, 1020 mb, +29°C
		12.00	DN 7374	Position, day's run:  180 nm     2 nm
		15.45		Headed for the coast of Cuba.  Dived, went up to 4 nm off the coast submerged.
		16.00	DN 7389	Position.
		20.00	DN 7397	Position.
		20.14		Surfaced.
		24.00	DN 7633	Position.
		18.07.42	Caribbean Sea
		04.00	DN 7655	Position.
		08.00	DN 7647
			ENE 2-3, Sea 2-3, 5/10, 1016 mb, +29°C
		09.08		Patrol vessel off Guantanamo in sight bearing 220°T, thereupon dived and closed.  At 5000 meters the patrol vessel came about and ran off to the northwest.  Moved off to the south submerged.
		11.10		All around sweep.  2-smokestack destroyer old type in sight bearing 20°T, range = 5000 meters.
		11.12		Destroyer came about to the west.
		11.36		1 4-smokestack destroyer and 1 patrol vessel bearing 260°T.  Changing easterly course, range - 6000 meters.
		11.46		Destroyer and patrol vessel out of sight in the southeast.
		11.55		3 patrol vessels bearing 290-300°T, southerly course, drew past before the boat at 4000-6000 meters.  Ancient comic vessels, the entire Cuban Grand Fleet.

	Sun and Moon Data 15.07.42
	Sun and Moon Data 16.07.42
	Sun and Moon Data 17.07.42
	Sun and Moon Data 18.07.42

	- 12 -
		continued
		18.07.42
		12.00	DN 7594	Position, day's run:  124 nm     16 nm
				Depth control and all around sweeps are very difficult in the high Sea State.
		12.10		Flying boat bearing 130°T, 3000 meters away.
				Afterwards in and out of sight several times.  Overflew the boat 2 times at 400 meters altitude.  Either we were seen from land this morning or a convoy is approaching.
				Initially remained on an westerly course.
		12.30		The patrol vessels are out of sight in the south.
		12.42		The 2-smokestack destroyer is in sight again bearing 57°T, southeast course, range - 5000 meters, quickly passed out of sight.
		12.45		Moved off to the southwest submerged.
		16.00	DN 7822	Position.
		20.00	DN 7732	Position.
		24.00	DN 7484	Position.
		19.07.42	Caribbean Sea
		04.00	DM 9695	Position.
		08.00	DM 9691	Position.
			E 0-1, Sea 0, 2-3/10, 1016 mb, +29.5°C
		12.00	DM 9672	Position, day's run:  164 nm     6 nm
		13.32		Crash dive for aircraft in direction 80°T, 6000 meters away.
		14.00		Surfaced.
		14.25		Crash dive for aircraft in direction 180°T, about 2000 meters away, came out of a cloud on opposite course, was probably not seen.
		15.20		Surfaced.
		16.00	DM 9586	Position.
		18.48		Crash dive for aircraft in direction 140°T, 6000 meters away.
		19.00		Surfaced.
		20.00	DM 9577	Position.
		24.00	DM 9714	Position.
		20.07.42	Caribbean Sea
		04.00	DM 8927	Position.
		08.00	DM 8862	Position.
			NE 1, Sea 1, 5/10, 1014 mb, +28°C
		12.00	DM 8875	Position, day's run:  165 nm     5 nm
		15.18		Crash dive for aircraft in direction 180°T, distance 3000 meters.  At depth 60 meters 3 bombs, probably depth charges, lay quite close.  A number of electrical devices, manometer etc. fail.
		16.00	DM 8786	Position.
		16.15		I want to surface and determine if both periscopes are out of service, nothing is seen, therefore remained submerged until darkness.
		20.00	DM 8789	Position.

	Sun and Moon Data 18.07.42
	Sun and Moon Data 19.07.42
	Sun and Moon Data 20.07.42

	- 13 -
		continued
		20.07.42
		22.34		Surfaced, ran off to the SE, into a presumably calm area to carry out repairs.
		24.00	EB 2135	Position.
				The following damage is not repaired:  both periscopes, fire control system, depth sounder, gyro compass, a few daughter compasses, also the rudder is not entirely operable.
		21.07.42
		02.00		Outgoing Radio Message:  1.)  At depth 60 meters 3 aircraft bombs DM 87.  Both periscopes out of service.  Repair unlikely.  2.)  Caicos and Windward nothing.  South of Cuba sea and air patrol.  3.)  18 June one patrol vessel easterly course AE 88.  4.)  180 cbm.  All naval squares.  E 1, Sea 1, 1015 mb, +31°C.
		04.00	EB 2245	Position.
		06.35		Incoming Radio Message:  Beucke.  If none of the two periscopes are operable, occupy naval square DO 30 and DP 10 as attack area.
		08.00	EB 2531	Position.
			E 2, Sea 1-2, 2/10, 1016 mb, +28°C
		12.00	EB 2645	Position, day's run:  135 nm     16 nm
		16.00	EB 2686	Position.
		20.00	EB 2939	Position.
		22.35		Test dive, afterwards repair of the rudder system.
		24.00	EB 2939	Position.
		22.07.42
		01.15		Surfaced.
		04.00	EB 2695	Position.
		08.00	EB 2656	Position.
			NE 1-2, Sea 1, 4/10, 1014 mb, +29°C
		12.00	EB 2659	Position, day's run:  155 nm     8 nm
		16.00	EB 2699	Position.
		17.31		Test dive, afterwards repair of the forward periscope and replacement of the gyro-compass globe.
		20.00	EB 2932	Position.
		22.30		Surfaced.
		24.00	EB 2936	Position.
		23.07.42	Caribbean Sea	During the last days I have moved back and forth in position from ED 22 - 29, to await repairs to the periscopes.  Enemy air reconnaissance was not observed here.

	Sun and Moon Data 20.07.42
	Sun and Moon Data 21.07.42
	Sun and Moon Data 22.07.42
	Sun and Moon Data 23.07.42

	- 14 -
		continued
		23.07.42
				On the fixed periscope the tilting mirror is smashed and was provisionally replaced by a ground glass mirror.  Lght intensity is reduced by about 50%, the enlargement is very out of focus.  The air search periscope is flooded.  Drying attempts were to no avail.  Also the internal optics must be ruined.
				To remain ready to crash dive, for the most part the work must be limited to the dark part of the night.
				Because I can still not decide, to give up the operations area in the Gulf of Mexico, I report by Radio Message to B.d.U.:  Fixed periscope smashed tilting mirror is provisionally replaced.  Air search periscope is unusable.
		04.00	EB 2683	Position.
		08.00	EB 2619	Position.
			E 1, 2/10, 1017 mb, +29°C
		08.35		Incoming Radio Message:  Leadership accepts that Beucke goes to Pfeffer operations area.  If not, report "No" by Short Signal.
				Held course for the Yucatan Strait.
		12.00	EB 2531	Position, day's run:  145 nm     10 nm
		14.00		Crash dive for aircraft astern, course athwart, coming out of the clouds.  At depth 70 meters 3-4 bangs in quick succession.  Only minor failures.
		15.35		Surfaced.  I had just given the order to blow when I saw a land-based aircraft pounce on us out of a cloud at 2000-3000 meters.
		15.56		Crash dive.  At depth 45 meters the first aircraft bombs explode.  The aft diving plane fails in the hard up position.  Boat takes on a strong down by the stern attitude, rises and was caught at depth 25 meters by stopping the motors.  The third bomb falls later further off, the boat went to depth A +20 meters.
		16.00	EB 2287	Position.
		17.40		Boat went to depth 50 meters, then to 30 meters.  As soon as we reach 30 meters 2 further bombs explode, about 100 meters away.  May be a coincidence.  I must accept an oil trace or strong air blowing from the forward periscope, which I had observed at 15.35 hours, or that we were seen at depth 30 meters.
		20.00	EB 2279	Went to the old depth.
		21.15		Turbine sounds in 130°T and 210°T, shifted ahead and astern, were tracked constantly (only with the KDB, the GHG picked up nothing).
				Waited until sunset at 22.00 hours, because I still must expect being sighted by aircraft at periscope depth.
		22.05		At periscope depth.  Nothing seen.  If the periscope was better.
		22.45		Waited for more darkness and surfaced in a rain squall.
				A rubber boat floats 500 meters ahead of the boat.
				The boat has no oil trace.
		24.00	EB 2277	Position.

Sun and Moon Data 23.07.42

	- 15 -
		24.07.42	Caribbean Sea
			On the basis of today's experience, I am again considering the chances of success for operating in the Gulf of Mexico.
			The following is determined:
			1)  The enemy air is heavy and alert.  After a dive for aircraft I have little prospect of getting further information on the aircraft.  If no bombs fall, I do not know if we were seen.  The second dangerous attack today would probably not have happened to me with an operable air search periscope.
			2)  There are full moon nights ahead.  The fixed periscope is much too weak for a submerged attack in the full moon.  Therefore in the next period I only have poor attack opportunities.
			3)  Another disadvantage is the failure of the depth sounder and the bad GHG which did not get better despite the shipyard work before leaving.  I am quite dependent on both devices under the coast.  Together I find the failure of the air search periscope and the weakness of the aft periscope as not a minor handicap in the strongly watched sea area and judge the success possibilities in a free sea area as greater.  Because the B.d.U. has left the decision to me in the last Radio Message, I decide to go to area DO/DP.
		01.19		Therefore I send the Short Signal "No".
		04.00	EB 2435	Position.
		08.00	EB 2521	Position.
			E 2, Sea 1, 4/10, 1017 mb, +29°C
		08.45		Dived due to strong, low cloudiness and the suspicion of a deployed U-boat hunt, proceeded submerged during the day.
		12.00	EB 2526	Position, day's run:  135 nm     23 nm
		16.00	EB 2534	Position.
		20.00	EB 2538	Position.
		20.20		Surfaced.
		24.00	EB 2645	Position.
		25.07.42	Caribbean Sea
		00.00		Light in sight bearing 180°T.  Was distinguished as a steamer.
		02.00		It is the Argentinian "RIOGRANDE" (3500 tons) on the way to Pensacola.  Properly illuminated.  Only Morse traffic.  Buenas noches.
		04.00	EB 2645	Position.
		08.00	EB 2683	Position.
			E 3, Sea 3, 2-4/10, 1016 mb, +28°C
		12.00	EB 2694	Position, day's run:  125 nm     21 nm
		16.00	EB 3725	Position.
		20.00	EB 3764	Position.
		20.00		Crash dive for training.
		20.40		Surfaced.
		24.00	EB 3847	Position.

	Sun and Moon Data 24.07.42
	Sun and Moon Data 25.07.42

	- 16 -
		26.07.42	Caribbean Sea
		04.00	EB 3882	Position.
		08.00	EB 3889	Position.
			E 4, Sea 4, 3-4/10, 1016.5 mb, +28°C
		08.20		Crash dive for approaching aircraft.  First seen at 500 meters while taking a navigation fix in the twilight at 500 meters.  Recognized at the last moment, that no direct attack would follow, therefore did not shoot.
		12.00	EB 6311	Position, day's run:  129 nm     10 nm
		13.10		Boat at periscope depth.  Land-based aircraft in direction 60°T, 80 meters away at altitude 150 meters.
		16.00	EB 6314	Position.
		20.00	EB 6318	Position.
		22.38		Surfaced.
		24.00	EB 6346	Position.
		27.08.42	Caribbean Sea
		04.00	EB 6622	Position.
		04.32		Bright moonlit night.  At about 1000 meters range a white star like an aircraft Recognition Signal.  Dived.
		07.44		Surfaced.
		08.00	EB 6625	Position.
		08.54		Dived.  Proceeded submerged due to unfavorable cloudiness and diesel repairs (13 hours).
		12.00	EB 6626	Position, day's run:  54 nm     34 nm
		16.00	EB 6634	Position.
		20.00	EB 6636	Position.
		23.05		Surfaced.
		24.00	EC 4413	Position.
		28.07.42	Caribbean Sea
		02.50		Lookout and machine gun position simultaneously report a flying bright light abeam to starboard, duration 3 seconds.  Turned out of the sea.  Nothing further happens.
		04.00	EC 4481	Position.
		08.00	EC 4731	Position.
			E 4, Sea 3-4, 3/10, 1011 mb, +28°C
		08.30		Dived due to cloudiness.  Proceeded submerged,  40 nm navigation offset to the south.
		12.00	EC 7131	Position, day's run:  74 nm     29 nm
		13.05		Surfaced.
		16.00	EC 4877	Position.
		20.00	EC 4882	Position.
		24.00	EC 4972	Position.
		29.07.42	Caribbean Sea
		04.00	EC 4919	Position.
				The health of the crew is bad.  The cook has been isolated for 3 weeks due to open sores over the entire body.  The diesel and electrical personnel after overcoming the

	Sun and Moon Data 26.07.42
	Sun and Moon Data 27.07.42
	Sun and Moon Data 28.07.42
	Sun and Moon Data 29.07.42

	- 17 -
		continued
		29.07.42		oil scabies now have red dog and consistently swollen arm glands.  6 men have severe ear aches
				The air is extraordinarily humid.  The temperature in the boat is between 33 and 40°C.
		08.00	EC 4923	Position.
		08.40		Test dive, afterwards awaited the breaking up of the cloudiness.
		11.06		Surfaced.
		12.00	EC 4699	Position.
			E 3-4, 4/10, 1012 mb, +28°C
		12.22
		16.00	EC 5474	Position.
		20.00	EC 5472	Position.
		21.54		Surfaced.
		24.00	EC 5458	Position.
		30.07.42	Caribbean Sea
		04.00	EC 5464	Position.
		08.00	EC 5517	Position.
			E 3, Sea 4-5, 10/10, 1015 mb, +28°C
		09.05		Dived.
		12.00	EC 5519	Position, day's run:  50 nm     26 nm
		16.00	EC 5527	Position.
		20.00	EC 5529	Position.
		21.50		Surfaced.
		24.00	EC 5563	Position.
		31.07.42	Caribbean Sea
		04.00	EC 5613	Position.
		08.00	EC 5398	Position.
			E 4, Sea 4, 3/10, 1017 mb, +28°C
		12.00	EC 5379	Position, Day's run due to navigation offset 70 to the west: 70 nm     20 nm
		14.15		Dived.  Repairs to the express valve of the negative buoyancy tanks.
		16.00	EC 5622	Position.
		20.00	EC 5622	Position.
		21.30		Piston sounds bearing 350°T.  Nothing seen in the periscope.  I want to surface, the port diesel cannot be reversed.  Remained at periscope depth, it was darker.  Sound bearing steadies and was louder.  Changed course to let the bearing shift.  Suddenly 3 depth charges explode, not too close, no damage.  Went to depth A +60 meters.  In the KDB 3 vessels are heard, which momentarily stop, took the sounds astern, and ran off to the west.

	Sun and Moon Data 29.07.42
	Sun and Moon Data 30.07.42
	Sun and Moon Data 31.07.42

	- 18 -
		01.08.42	Caribbean Sea
		00.29		Surfaced.
		04.00	EC 5636	Position.
		08.00	EC 6168	Position.
			E 4-5, 5/10, 1016 mb, +28°C
		09.00		Dived.
				For 5 days we torment laboriously forward to the east. The Trade Winds blow incessantly from the east, freshen in the morning up to 8, subside during the night to 4 and push a massive sea before it.  Mostly no weapons use.  Cloudiness is mostly such that one is not safe from surprise from the air.  Under these conditions, it is best to proceed submerged during the day and at night at higher speed (both LF) and blow main ballast tank 7 to gain ground to the east.
		12.00	EC 6192	Position, day's run:  50 nm     26 nm
		16.00	EC 6193	Position.
		20.00	EC 6271	Position.
		21.30		Surfaced.
		24.00	EC 6254	Position.
		02.08.42	Caribbean Sea
		04.00	EC 6238	Position.
		08.00	EC 6312	Position.
			E 4, Sea 4, 5/10, 1018 mb, +28°C
		12.00	EC 3952	Position, day's run:  90 nm     18 nm
		14.45		Dived.
		16.00	EC 3931	Position
		20.00	EC 3698	Position.
		21.26	EC 3698	Surfaced.
		24.00	EC 1445	Position.
		03.08.42	Mona Passage
		04.00	EC 1118	Position.
		08.00	EC 1134	Position.
			E 3, Sea 2-3, 3/10, 1020 mb, +28°C
		09.05		Crash dive for aircraft, that apparently flew a barrier flight over the Mona Passage.
		12.00	EC 1135	Position, day's run:  88 nm     19 nm
		16.00	EC 1133	Position.
		20.00	DO 7877	Position.
		22.00		Surfaced.
		24.00	DO 7845	Position.
		04.08.42	Central Atlantic
		04.00	DO 7598	Position.
		08.00	DO 7563	Position.
			E 2, Sea 2, 2/10, 1021 mb, +28°C
		11.02		Incoming Radio Message from B.d.U.:  1)  U-509 and Beucke go to attack area naval square EE southern third and EO.  See Lassen, Piening, Markworth, U-108 situation reports.  Beucke after leaving up to now attack area give short situation report.

	Sun and Moon Data 01.08.42
	Sun and Moon Data 02.08.42
	Sun and Moon Data 03.08.42
	Sun and Moon Data 04.08.42

	- 19 -
		continued
		04.08.42
		12.00	DO 7616	Position, day's run:  104 nm     20 nm
		16.00	DO 7397	Position.
		20.00	DO 8171	Position.
		21.36		Test dive.
		22.00		Surfaced.  Outgoing Radio Message:  From EB 20 through the Caribbean-Mona held up by Trade Winds up to 8 and air, EC 56 locating, depth charges.  Mona night air.  Position DO 81.  All naval squares.  143 cbm, 12 + 8 torpedoes.
		24.00	DO 8241	Position.
		05.08.42	Central Atlantic
		04.00	DO 8253	Position.
		08.00	DO 8342	Position.
			ENE 2, Sea 1-2, 3/10, 1022 mb, +28°C
		10.05		Crash dive for aircraft bearing 0°T.
				Assume air reconnaissance after taking bearing on our radio message yesterday.
		11.30		Surfaced.
		12.00	DO 8353	Position, day's run:  154 nm     4 nm
		16.00	DO 9141	Position.
		20.00	DO 9153	Position.
		24.00	DO 9163	Position.
		06.08.42	Central Atlantic
		01.30		Test dive, listened.
		01.50		Surfaced.
		04.00	DO 9251	Position.
		08.00	DO 9319	Position.
			ENE 2, Sea 1-2, 4/10, 1020 mb, +28°C
		12.00	DO 9329	Position, day's run:  152 nm     1 nm
		16.00	DP 7118	Position.
		20.00	DP 7218	Position.
		24.00	DP 7257	Position.
		07.08.42	Central Atlantic
		04.00	DP 7297	Position.
		08.00	DP 7618	Position.
			E 2, Sea 1, 1-2/10, 1022 mb, +28.5°C
		12.00	DP 7658	Position, day's run:  153 nm     1 nm
		16.00	DP 7968	Position.
		20.00	DP 8718	Position.
		22.10		Test dive, listened.
		23.55		Surfaced.
		24.00	DP 8789	Position.
		08.08.42	Central Atlantic
		04.00	EE 2162	Position.
		08.00	EE 2193	Position.
			E 3-4, Sea 3, 5/10, 1021 mb, +27.5°C
		09.37		Steamer in sight bearing 40°T.  Comes quickly with the bridge over the horizon, had bow left 30°, zigzags to target angle 0°.  Because the diesel is smoking,

	Sun and Moon Data 04.08.42
	Sun and Moon Data 05.08.42
	Sun and Moon Data 06.08.42
	Sun and Moon Data 07.08.42
	Sun and Moon Data 08.08.42

	- 20 -
		continued
		08.08.42		dived in the hope that the steamer lay on his general course.  The steamer first came in sight very late in the periscope  which was very poor [refering to the periscope], and ran past at the limit of our range on course about 255°.
		11.46		Surfaced, maneuvered ahead.
		12.00	EE 2199	Position, day's run:  131 nm     7 nm
		16.00	EE 1638	Position.
		18.11		Boat is ahead of the steamer, which zigzags from 20-30° to both sides around general course 255° and runs at 13 knots.  Dived to attack.
		19.13		2-fan from tubes V and IV.
				Target speed = 13 knots, target angle 60°, range = 1000 meters, depth 4 meters.
				Miss.
				Because the data was perfect, I suspect that the target was undershot, high Swell.  The KDB listener reports one torpedo ran in direction 200° (shooting angle 160°).  Turned for a bow attack.  Just be fore the shot the boat cut under, and when it came up again target angle was already 140°.
		20.00	EE 1642	Position.
		20.29		Surfaced.
		20.30		Dived, because it was still a little too bright and the steamer was only 5 nm away.
		20.45		Surfaced, steamer bears 250°T, steers 230°.  Starboard diesel out of service for 1/4 hour, steamer was lost in the darkness.
		22.47		Pursued in 230°, dived to listen.  Sound bearing in 300°T, quite faint.
		23.00		Surfaced.
		23.30		Gave up steamer pursuit, because the steamer was not in sight, I have to listen at least once an hour, sacrificing the gained ground again.
				Moved off to the south.
		24.00	EE 1567	Position.
		09.08.42	Central Atlantic
		04.00	EE 1678	Position.
		08.00	EE 1961	Position.
			E 2, Sea 2-3, 4/10, 1021 mb, +28°C
		12.00	EE 2773	Position, day's run:  220 nm     8 nm
		16.00	EE 5131	Position.
		20.00	EE 5241	Position.
		23.47		Test dive, listened.
		24.00	EE 5283	Position.
		10.08.42	Central Atlantic
		00.05		Surfaced.
		04.00	EE 5535	Position.
		08.00	EE 5676	Position.
			E 3, Sea 2-3, 5/10, 1020 mb, +28°C
		12.00	EE 5928	Position, day's run:  156 nm     0.5 nm

	Sun and Moon Data 08.08.42
	Sun and Moon Data 09.08.42
	Sun and Moon Data 10.08.42

	- 21 -
		continued
		10.08.42
		16.00	EE 5991	Position.
		20.00	EE 8331	Position.
		24.00	EE 8361	Position.
		11.08.42	Central Atlantic
		00.05		Dived and listened.
		00.30		Surfaced.
		04.00	EE 8394	Position.
		08.00	EE 8637	Position.
			E 2, Sea 1, 2/10, 1018 mb, +28°C
		12.00	EE 8637	Position, day's run:  115 nm     1 nm
		16.00	EE 8394	Position.
		20.00	EE 8361	Position.
		23.45		Test dive, listened.
		24.00	EE 8352	Position.
		12.08.42	Central Atlantic
		00.10		Surfaced.
		04.00	EE 8372	Position.
		08.00	EE 8526	Position.
			NNE 0-1, Sea 1, 4/10, 1016 mb, +28°C
		12.00	EE 8554	Position, day's run:  116 nm     0.5 nm
		16.00	EE 8574	Position.
		20.00	EE 8579	Position.
		21.50		Test dive, listened.
		24.00	EE 8584	Position.
		13.08.42	Central Atlantic
		00.05		Surfaced.
		03.45		Dived to listen.
		04.00	EE 8594	Position.
		04.10		Surfaced.
		08.00	EE 8648	Position.
			E 1, Sea 0, 3/10, 1017 mb, +28°C	Empty lifeboat of the English steamer "CLAN MAC NAUGHTON" passed drifting.  10 nm east an enormous oil slick.
		12.00	EE 8659	Position, day's run:  108 nm     3 nm
		16.00	EE 8662	Position.
		13.25		Dived, listened.
		13.57		Surfaced.
		20.00	EE 8398	Position.
		23.10		Surfaced.
		23.30		Surfaced.
		24.00	EE 8363	Position.
		14.08.42	Central Atlantic
		04.00	EE 5999	Position.
		08.00	EE 8322	Position.
			W 1, Sea 0-1, 4/10, 1018 mb, +28°C
		12.00	EE 8315	Position, day's run:  138 nm     2 nm

	Sun and Moon Data 10.08.42
	Sun and Moon Data 11.08.42
	Sun and Moon Data 12.08.42
	Sun and Moon Data 13.08.42
	Sun and Moon Data 14.08.42

	- 22 -
		continued
		14.08.42
		16.00	EE 8261	Position.
		20.00	EE 8193	Position.
		23.35		Dived, listened.
		24.00	EE 8434	Position.
		15.08.42	Central Atlantic
		00.30		Very faint sounds bearing 220°T.
		00.40		Surfaced, ran 12 knots in the direction of the sound bearing.
		01.42		Dived, listened, no further sound bearings.
		02.08		Surfaced.
		04.00	EE 8458	Position.
		08.00	EE 8724	Position.
			SSE 1-2, Sea 1, 5/10, 1019 mb, +28°C
		12.00	EE 8757	Position, day's run:  150 nm     2 nm
		12.45		Crash dive for aircraft bearing 340°T.
		14.32		Surfaced.
		16.00	EE 8783	Position.
		18.15		Incoming Radio Message:  . . . Beucke report situation.
		20.00	EE 8793	Position.
		24.00	EE 8887	Position.
		16.08.42	Central Atlantic
		00.35		Outgoing Radio Message:  4 days 82, 83, 85, 86 nothing, today 87 light air.  Intention 21 to 88 naval square EE and EO.  110 cbm, 10 + 8 torpedoes.  E 2, Sea 1, Cumulonimbus, Vis. good.
		02.05		Dived to listen.
		22.20		Surfaced.
		04.00	EE 8887	Position.
		08.00	EE 8863	Position.
			E 1-2, 8/10, 1018 mb, +27.5°C
		12.00	EE 8831	Position, day's run:  142 nm     3 nm
		14.54		Incoming Radio Message:  . . . Beucke monitor south of the latitude of ED 9930.  Proceed via [ED] 9950, EN 3340 and 70.
				I intend after EO 14, to initially go to the 100-meter line.
		16.00	EE 8851	Position.
		20.00	EE 8871	Position.
		23.47		Dived to listen.
		24.00		Surfaced, port diesel out of service. Cooling water pump and drive for lubricating oil pump - because of protracted repairs, came to an easterly course.
		24.00	EE 8797

	Sun and Moon Data 14.08.42
	Sun and Moon Data 15.08.42
	Sun and Moon Data 16.08.42

	- 22a -
		17.08.42	Central Atlantic
		04.00	EO 2153	Position.
		04.20		Dived to listen.
		04.35		Surfaced.
		08.00	EO 2241	Position.
		11.38		Smoke cloud bearing 120°T.  Because the port diesel is out of service, maneuvered ahead with the starboard diesel.
		12.00	EO 2252	Position, day's run:  164 nm     1 nm
		13.01	EO 2252	Steamer plotted on course 265°, 12 knots.  Am ahead of the steamer, dived to attack.
		13.45		Steamer comes in the light-weak periscope, steers 290°.  At GF to attack position.
		14.36		2-fan from tubes II and III, Etos.
				Perfect data, 123 RPM clocked.
				Target speed = 12 knots, target angle = red 70°, lead angle = 22°, range 1200 meters, depth 3 meters, spread angle 4°,  miss.
				By sound bearing the left torpedo passed just before the bow, the right torpedo 15° right of the steamer, apparently a gyro angle failure.
		14.38		Shot from tube IV, Eto
				Target speed = 12 knots, target angle red 90°, lead angle = 23.5°, range = 1200 meters, depth 3 meters.
				When the shot went, the enemy turned hard starboard in target angle 180°, therefore miss.
				Steamer stopped, shot 3 minutes later with artillery in the vicinity of the boat, then ran off to the north.  I accept that the right torpedo  (fan shot) broached and betrayed the boat.  It is also possible that I was seen before the second shot despite the most economical periscope use.
		16.06		Surfaced, enemy bears 330°T, 8 nm away.
				In the mean time the port diesel  is ready for GF (oil pump dismantled colling water pump disengaged).
				Maneuvered ahead.
		16.30		Outgoing Radio Message:  1.)  Steamer EO 2163, course 290°, 12 knots, small zigzags.
				2.)  18.00 hours 600-meter wavelength U-boat sighting report in naval square EO 3675.
		20.00	EO 2115	Position.
				Enemy plotted on course 305°, 12 knots.  At sunset the steamer bore 65°T, passed out of sight.  I expect that at darkness the steamer will take course for Trinidad (265°).  This was confirmed by sound bearings.  Due to the bright moon, I initially held off to the west,  to attack after moonset (24.00 hours).
		20.58		Dived, sound bearing 115°T.
		21.15		Surfaced.
		22.25		Dived, sound bearing 125°T.
		22.35		Surfaced, got ahead of the enemy on course 200°.
		23.00		Steamer gave U-boat sighting report on the 600-meter wavelength.  From 14.38 hours going to Paramaribo.
		23.47		Dived.  By plotting the boat is 3 nm from the steamer.
		23.47		However, do not get any sound bearings.
		24.00	EO 1323	Position.

Sun and Moon Data 17.08.42

	- 23 -
		18.08.42	Central Atlantic
		00.30		Surfaced.  It has gotten very dark.  Because there is no indication where the steamer might be, moved off to the southeast.  Continued diesel repairs.
		04.00	EO 2117	Position.
		08.00	EO 2182	Position.
			E 2, Sea 1-2, 4/10, 1015 mb, +28.5°C
		12.00	EO 2196	Position, day's run:  205 nm     13 nm
		16.00	EO 2513	Position.
		20.00	EO 2531	Position.
		24.00	EO 2379	Position.
		19.08.42	Central Atlantic
		04.00	EO 2383	Position.
		05.14		Test dive and listened.
		05.31		Surfaced.
		08.00	EO 2388	Position.
			SbyE 1-2, Sea 1, 5/10, 1015 mb, +28.5°C
		12.00	EO 2618	Position, day's run:  154 nm     0.5 nm
		16.00	EO 2618	Position.
		20.00	EO 2622	Position.
		23.30		Diesel repairs ended.
		24.00	EO 2392	Position.
		20.08.42	Central Atlantic
		04.00	EO 2398	Position.
		02.00 - 06.00		After moonset 2 torpedoes downloaded from the over deck canisters.
		07.17		Test dive.
		07.26		Surfaced.
		08.00	EO 2629	Position.
			E 0-1, Sea 1, 4/10, 1018 mb, +28.5°C
		12.00	EO 2618	Position, day's run:  134 nm     0.5 nm
				Scholtz recently reported NW-traffic in EE 35 and 38, Neitzel says east-west traffic a bit to the east of his.  Because within the last 3 days in EE 21 - 23 I have seen only 1 steamer, in any case, the traffic lane seems to turn west to the south of us.  Therefore I gave up the intention to go to EO 14 and will go to EO 30.  Considering the usability of the periscopes, listening gear, and the depth sounder, operation in the free sea area is as favorable as in the vicinity of land.  The fixed periscope is usable for day attack, the 6X magnification is worthless.  Since I am thankful the periscope is watertight after the tilting mirror repair, I refrain from attempting a possible improvement.
				From previous experience, even under the most favorable conditions, the range of both listening devices is still not greater than the eye, usually far lower.
				The deep depth sounder is out of service.  If the

	Sun and Moon Data 18.08.42
	Sun and Moon Data 19.08.42
	Sun and Moon Data 20.08.42

	- 24 -
		continued
		20.08.42		(up to 100-meter) still reflects, cannot be checked up to now.
		16.00	EO 2641	Position.
		20.00	EO 2658	Position.
		24.00	EO 2696	Position.
		21.08.42	Central Atlantic
		04.00	EO 3475	Position.
		03.00 - 05.00		Downloaded 2 torpedoes from the over deck canisters.
		06.25		Test dive and listened.
		06.45		Surfaced.
		08.00	EO 3479	Position.
			SE 2, Sea 1, 4/10, 1015 mb, +28°C
		12.00	EO 3498	Position, day's run:  138 nm     0.5 nm
		16.00	EO 3571	Position.
		20.00	EO 3517	Position.
		24.00	EO 3515	Position.
		22.08.42	Central Atlantic
		03.45		Test dive and listened.
		04.00	EO 3548	Position.
		04.05		Surfaced.
		08.00	EO 3812	Position.
			SE 2, Sea 2-3, 7/10, 1018 mb, +29C
		12.00	EO 3845	Position, day's run:  142 nm     0.5 nm
		16.00	EO 3872	Position.
		20.00	EO 3813	Position.
		24.00	EO 3558	Position.
		23.08.42	Central Atlantic
		03.54		Test dive and listening.
		04.00	EO 3534	Position.
		04.04		Surfaced.
		08.00	EO 3558	Position.
			E 1, Sea 0, 1/10, 1018 mb, +28.5°C
		12.00	EO 3579	Position, day's run:  147 nm     0.25 nm
		16.00	EO 3684	Position.
		20.00	EO 3553	Position.
		24.00	EO 3557	Position.
		24.08.42	Central Atlantic
		04.00	EO 3569	Position.
		06.00		Test dive and listening.
		06.25		Surfaced.
		08.00	EO 3649	Position.
			SE 0-1, Sea 0-1, 2/10, 1016 mb, +28.5°C
		12.00	EO 3651	Position, day's run:  152 nm     0.5 nm
		16.00	EO 3684	Position.
		20.00	EO 3916	Position.
		24.00	EO 3649	Position.

	Sun and Moon Data 20.08.42
	Sun and Moon Data 21.08.42
	Sun and Moon Data 22.08.42
	Sun and Moon Data 23.08.42
	Sun and Moon Data 24.08.42

	- 25 -
		25.08.42	Central Atlantic
		04.00	EO 3616	Position.
		05.57		Test dive and listened.
		06.14		Surfaced.
		08.00	EO 3616	Position.
			E 0-1, Sea 1, 10/10, 1020 mb, +28°C
		12.00	EO 3649	Position, day's run:  144 nm     0.5 nm
		16.00	EO 3913	Position.
		20.00	EO 3919	Position.
		24.00	EO 3645	Position.
		26.08.42	Central Atlantic
		02.20		Test dive and listened.
		02.44		Surfaced.
		04.00	EO 3612	Position.
		08.00	EO 3348	Position.
			NE 1, Sea 1-2, 4/10, 1018 mb, +29°C
		12.00	EO 3315	Position, day's run:  145 nm     0.5 nm
		16.00	EE 9971	Position.
		20.00	EE 9941	Position.
		24.00	EE 9974	Position.
		27.08.42	Central Atlantic
		04.00	EO 3314	Position.
		06.12		Test dive and listened.
		06.29		Surfaced.
		08.00	EO 3344	Position.
			NE 1, Sea 0-1, 7/10, 1-17 mb, +28°C
		12.00	EO 3377	Position, day's run:  144 nm     0.5 nm
		13.55		Crash dive for aircraft, abeam to starboard about 2000 meters away, flying parallel.  Boat gets away badly.  At depth 20 meters 2 aircraft bombs fall, very close.  Apparently one ahead to starboard, the other astern to port.  Everything is a mess.  Both diving planes fail.  Boat settled to depth A +80 meters, despite all men forward, GF and stern down attitude.  Water intake in the stern room.  With a short blow of 5 and 1 via the emergency blow valve, balanced and pumped at depth A meters.  Because there was even more negative buoyancy, leaking torpedo tubes were suspected.  After diving plane was first in service after pumping the stern room, in which 8 tons of water had run.  Water intake took place via the hull valve for flooding the torpedo compensating tanks, whose flange detached from the pressure hull.  Was tightened, then held fairly well.
				Failures:  attack periscope, fire control system, E-motor spare cooling pump, bearing plate cracked and brush holder broken.  Gyrocompass, nearly all daughter compasses shattered, illuminated magnetic compass, both depth gages in the control room, many command elements, less important apparatus and lighting

	Sun and Moon Data 25.08.42
	Sun and Moon Data 26.08.42
	Sun and Moon Data 27.08.42

	- 26 -
		continued
		27.08.42		Seal at the coning tower hatch and radio direction finder partially squeezed out, water level and oil sight glasses burst, nearly all clocks in pieces.  Both WCs destroyed.  Valves and hull closures loosened and detached.
		13.55
				Because both periscopes are out of service remained submerged until darkness.  Began repairs.
		20.00	EO 3312	Position.
		20.40		Surfaced.  Over deck damage:  canisters 7 and 8 crushed, apparently also 3 and 4 cracked.  All 4 canisters with torpedoes.  Sight of the 10.5 cm cannon, both daughter compasses smashed, UZO torn away.  Bottleneck of the periscope lightly bent.  External damage to the over deck cladding.  Condition of the torpedo tubes:  Tubes V and VI firing linkage cannot be cocked, hull shutter cannot be opened.  Tube IV stop bolt abutment sheered at the torpedo, pistol damaged.  Outer tube door fairing cannot be completely opened.  Tube I-III still not examined.  Tube I gyro angle setting gear out of service.
				Moved off to the NE for repairs.
		24.00	EO 3391	Position.
		28.08.42	Central Atlantic
		04.00	EP 1143	Position.
		08.00	EF 7783	Position.
			E 1, Sea 0-1, 1-2/10, +30°C
		12.00	EF 7762	Position, day's run:  119 nm     14 nm
		16.00	EF 7577	Position.
		20.00	EF 7548	Position.
		22.52		Outgoing Radio Message:  9 days EO 20 and 30 nothing.  In 36 Thursday aircraft bombs.  4 canisters with torpedoes dented.  Periscopes still out of service, 5 torpedo tubes, repairs in EF 70.  Naval squares, 78 cbm, loss of 10 cbm possible.
				Missing 247 of 22 August, 64 of 23 August.
		24.00	EF 7524	Position
				Up to now repaired and in service again:  Tubes II and IV with torpedoes.  Mechanical fire control system, UZO as sight.  Gyro compass (without amplifier), steering daughter compass conning tower, transmitter for main rudder and aft diving plane, alarm system, cable breaks, lighting, oil and water level glasses, manometers.

	Sun and Moon Data 27.08.42
	Sun and Moon Data 28.08.42

	- 27 -
		29.08.42	Central Atlantic
		04.00	EF 7283	Position.
		08.00	EF 7262
			ENE 2, Sea 1-2, 1/10, 1024 mb
				Sounding of the external main ballast and reserve fuel tanks shows unexplained fuel oil loss.  Main ballast and reserve fuel oil tanks were completely pumped out.  Total quantity 70 cbm determined.  Loss amounts to 6 cbm.
		12.00	EF 4978	Position.
		16.00	EF 4942	Position.
		20.00	EF 4925	Position.
		24.00	EF 4941	Again in service:  Tube I ( the torpedo had a jammed gyro angle rudder, works smoothly after minor repair).  Tubes III and V with torpedoes.  Various electrical apparatus.
				From 20.00 hours to 23.00 hours [over deck] canisters examined.
				Tube 7 completely smashed, as well as the torpedo.  The torpedo was wedged in, the tube made free flooding.  Tube 8 was half full of water, (overpressure) the torpedo slightly dented in several places, was pulled and stored in tube 6.  Tube 8 was flooded, to get heavier forward.  Tubes 3 and 4 are dented, however dry.  The 4 empty tubes (5, 6, 9, 10) were undamaged because they were carried free flooded.
				The fixed periscope is still not in service despite continual work.  Inside many parts are torn off, prisms shattered.  Unfortunately we are missing the necessary tools.
		30.08.42	Central Atlantic
		00.32		Test dive and listened.
		00.52		Surfaced.
		04.00	EF 4924	Position.
		08.00	EF 4965	Position.
			ENE 3-4, Sea 4, 10/10, 1021 mb, +26°C
		10.16		Due to rain and bad visibility, because the boat is not ready for day attack, proceeded submerged.
		12.00	EF 4926	Position, day's run:  104 nm     2 nm
		13.40		Surfaced.
		16.00	EF 4689	Position.
				Attack periscope is now checked in all parts and repaired except for the lenses in the upper part.  Opening the bottleneck again to get to the point of damage is not possible.  The periscope is unusable.  Because in the current condition I believe the success possibility of the boat is slight and after the effect of the last aircraft bombs I do not trust the sensitive apparatus of the torpedoes, I believe return transit and corresponding early completion of shipyard overhaul is more correct than lingering another 14 days in the operations area.

	Sun and Moon Data 29.08.42
	Sun and Moon Data 30.08.42

	- 28 -
		continued
		30.08.42
		18.44		Therefore Radio Message to B.d.U.:  Both periscopes out of service, not clear to dive deep.  Mistrust torpedoes.  By listening 2 gyro-failures.  Last aircraft bombs very close.  Suggest return transit without supply.  68 cbm EF 40 naval squares.  Weather.
		20.00	EF 4691	Position.
		22.00		Incoming Radio Message:  Beucke.  1)  Delay return transit according to fuel situation, no supply.  2)  Mistrust of torpedoes is only correct after aircraft damage and if gyro angle failure is determined with certainty.
		24.00	EF 4666	Position.
				Began return transit.
		31.08.42	Central Atlantic
		04.00	EF 5421	Position.
		08.00	EF 5167	Position.
			SE 3, Sea 3, 3-4/10, 1032 mb, +26°C
		12.00	EF 5214	Position, day's run:  152 nm     4 nm
		16.00	EF 2885	Position.
		20.00	EF 2891	Position.
		21.17		Test dive.
		21.35		Surfaced.
		24.00	EF 2917	Position.
				Today further aircraft bomb damage was determined, cracks in the base plate and motor bearing plate of the E-compressor.
		01.09.42	Central Atlantic
		04.00	EF 2684	Position.
		08.00	EF 2662	Position.
			SE 1-2, Sea 1-2, 3/10, 1032 mb, +25°C
		12.00	EF 3412	Position, day's run:  165 nm     0.5 nm
		16.00	EF 3183	Position.
		20.00	EF 3139	Position.
		24.00	DQ 9877	Position.
				The hull valve for flooding the aft torpedo compensating tanks was secured today by means of second welded tabs against pressure effect.
		02.09.42	Central Atlantic
		04.00	DQ 9867	Position.
		08.00	DQ 9917	Position.
			E 2, Sea 2, 5/10, 1030 mb, +26°C

	Sun and Moon Data 30.08.42
	Sun and Moon Data 31.08.42
	Sun and Moon Data 01.09.42
	Sun and Moon Data 02.09.42

	- 29 -
		continued
		02.09.42
		01.10		Steamer in sight bearing 70°T, estimated 20,000 tons.  2 masts, 2 thick smokestacks, quickly passed out of sight with a zigzag.  After half an hour I have him again.  Altogether could plot for 3/4 hours.  He ran at 20 knots, general course 0°.  Am positioned hopelessly astern.
				Outgoing Radio Message:  Naval square DQ 9681.  Very large 2 smokestack vessel.  20 knots, course 0°, small zigzags.
		12.00	DQ 9671	Position, day's run:  157 nm
		16.00	DQ 9659	Position.
		20.00	DR 7417	Position.
		22.50		The makeshift anchoring and mounting of the E-compressor is finished.  However, since failure of the E-compressor can be expected with little enemy action, and the Junkers compressor has been out of action for a long time, sent the following Radio Message:  If possible, request by a southbound boat Junkers compressor bushing with nozzle set.  E-compressor is limitedly operable, base plate and motor bearing plate are cracked.  NS 94, course for AK 19.  Weather.
		24.00	DR 7185	Position.
		03.09.42	Central Atlantic
		00.10		Test dive and listened.
		00.27		Surfaced.
		04.00	DR 7165	Position.
		05.50		Incoming Radio Message from B.d.U.:  Beucke.  Pick up spare parts from Vowe.
				Course for CD 8155.
		08.00	DR 4794	Position.
			E 2-3, Sea 3, 2/10, 1032 mb, +25°C
		12.00	DR 4766	Position, day's run:  168 nm     0.3 nm
		16.00	DR 4499	Position.
		20.00	DR 4463	Position.
		24.00	DR 4196	Position.
		04.09.42	Central Atlantic
		04.00	DR 4163	Position.
		08.00	DR 1793	Position.
			E 3, Sea 2-3, 3/10, 1034 mb, +26°C
		12.00	DR 1739	Position, day's run:  168 nm
		16.00	DR 1493	Position.
		20.00	DR 1463	Position.
		24.00	DR 1169	Position.
			Today the fixed periscope was taken apart once again and the lenses in the bottleneck examined.  Between the individual

	Sun and Moon Data 02.09.42
	Sun and Moon Data 03.09.42
	Sun and Moon Data 04.09.42

	- 30 -
		continued
		04.09.42	lenses lay fine glass, dirt and dust.  After cleaning all reachable parts now, with a fixed tilting mirror, a poor, disturbed by many stains and cloudy, view is possible, which allows a panoramic view of the immediate surroundings.
		05.09.42	Central Atlantic
		01.02		Test dive.
		01.12		Surfaced.
		04.00	DR 1136	Position.
		08.00	DF 7854	Position.
			NE 2, Sea 2, 2/10, 1040 mb, +25°C
		12.00	DF 7587	Position, day's run:  172 nm     0.3 nm
		16.00	DF 7552	Position.
		20.00	DF 7286	Position.
		24.00	DF	Position.
		06.09.42	Central Atlantic
		04.00	DF 4893	Position.
		08.00	DF 4837	Position.
			ENE 2, Sea 1-2, 4/10, 1040 mb, +26°C
		12.00	DF 4592	Position, day's run:  172 nm
		16.00	DF 4536	Position.
		20.00	DF 4263	Position.
		22.25		Crash dive for training.
		22.45		Surfaced.
		24.00	DF 1899	Position.
		07.09.42	Central Atlantic
		04.00	DF 1941	Position.
		08.00	DF 1674	Position.
			ENE 1-2, Sea 0-1, 2/10, 1039 mb, +24°C
		12.00	DF 1618	Position, day's run:  182 nm
		16.00	DF 1372	Position.
		20.00	DF 1313	Position.
		24.00	CD 8743	Position.
		08.09.42	Central Atlantic
		04.00	CD 8484	Position.
		08.00	CD 8428	Position.
			ENE 1-2, Sea 0-1, 4/10, 1041 mb, +29°C
		10.27		Crash dive for training.
		11.08		Surfaced.
		12.00	CD 8182	Position, day's run:  192 nm
		12.20		Supply boat Vowe in sight.
		13.00 - 18.10		Took over provisions and Junkers compressor.
		16.00	CD 8158	Position.
		20.00	CD 8158	Position.
		24.00	CD 8163	Position.

	Sun and Moon Data 04.09.42
	Sun and Moon Data 05.09.42
	Sun and Moon Data 06.09.42
	Sun and Moon Data 07.09.42
	Sun and Moon Data 08.09.42

	- 31 -
		continued
		09.09.42	Central Atlantic
		04.00	CD 8221	Position.
		08.00	CD 5895	Position.
		08.46		Steamer in sight bearing 332°T, easterly course.  Maneuvered ahead of the steamer and ran along ahead of the steamer until the beginning of darkness.
		12.00	CD 5958	Position, day's run:  130 nm
		15.10		A second steamer in sight bearing 180°T, steers opposite course.
				Due to attack prohibition on Route "Anton" reported both steamers by Short Signal.
				Outgoing Radio Message (Short Signal).
		15.41		1)  1 steamer square CD 60, course 90°, intend to attack.
		15.50		2)  1 steamer square CD 5992, westerly course.
		17.00		The second Short Signal was repeated by Control with the supplement:  Not own ship.
		16.00	CD 6748	Position.
		20.00	CD 6767	Position.
		19.40		Steamer set lights.
		20.45		Steamer halted with a shot before the bow.  It is the Portuguese "AMARANTE" (7900 tons) with coal for Lisbon, prescribed markings and illumination.  Course was plotted at 90°, therefore proper.  Only Morse traffic.
		21.26		Test dive.
		22.20		Surfaced.
		24.00	CD 6844	Position.
		10.09.42	North Atlantic
		00.05		Outgoing Radio Message:  1)  First reported steamer was Portuguese with coal.  2)  Starboard compressor taken over from Vowe.  3)  Naval square CD 68.  Weather etc.
		04.00	CD 6825	Position.
		08.00	CD 6674	Position.
			NW 1-2, Sea 1, 4/10, 1034 mb, +23°C
		12.00	CD 6655	Position, day's run:  184 nm     2 nm
		15.40		Incoming Radio Message:  1)  . . . .  2)  Beucke etc. from 11 September at 08.00 hours switch to Ireland Circuit.
		16.00	CD 6639	Position.
		20.00	CE 4193	Position.
				Clocks advanced 4 hours.
				The taken over Junkers compressor is installed and operational.
		11.09.42	North Atlantic
		04.00	CE 4193	Position.
		08.00	CE 4255	Position.  Switched to Ireland Circuit.
			N 1-2, Sea 1, 0/10, 1032 mb, +22°C
		12.00	CE 4318	Position, day's run:  160 nm
		12.22	[blockade runners]	Incoming Radio Message:  For outbound boats U-904/U-907 occupy 600-meter wavelength continuously.

	Sun and Moon Data 09.09.42
	Sun and Moon Data 10.09.42
	Sun and Moon Data 11.09.42

	- 32 -
		continued
		11.09.42
		12.22		Schug, Thurmann from now until 12 September 24.00 hours, Beucke and Zurmühlen afterwards until 14 September 24.00 hours, etc . . .
		16.00	CE 4323	Position.
		20.00	CE 2771	Position.
		24.00	CE 2756	Position.
		12.09.42	Azores area
		00.20		Test dive.
		00.42		Surfaced.
		02.28		Outgoing Radio Message:  For shipyard. Replacements:  both periscopes including prisms, E-compressor baseplate and motor bearing plate, 4 canisters.    - U-173 -
		04.00	CE 2817	Position.
		08.00	CE 2822	Position.
			NE 1, Sea 1, 0/10, 1030 mb, +20°C
		12.00	CE 2896	Position, day's run:  170 nm     0.5 nm
		16.00	CE 2658	Position.
		16.32		Crash dive for U-boat bearing 60°T, apparently on opposite course.
		17.00		U-boat briefly seen in the periscope, was heard on the same bearing, sound bearing shifted to 76°T and disappeared about 17.30 hours.  Moved off to the north submerged.
		18.19		Surfaced, hauled out to the north.
		19.22		Outgoing Short Signal:
				1 U-boat square CE 2667.
				The most likely scenario it that it was a German U-boat, that saw me at the same time and after I dived evaded on the surface to the south.
		20.00	CE 2662	Position.
		20.41		Short Signal of 19.22 hours was confirmed.
		24.00	CE 3416	Position.
				Occupied the 600-meter wavelength.
		13.09.42	North Atlantic
		04.00	CE 3431	Position.
		08.00	CE 3276	Position.
			SbyE 1, Sea 1, 2/10, +21°C
		12.00	CE 3293	Position, day's run:  166 nm     6 nm
		16.00	CE 3357	Position
		20.00	SE 3363	Position.
		24.00	CF 1228	Position.

	Sun and Moon Data 11.09.42
	Sun and Moon Data 12.09.42
	Sun and Moon Data 13.09.42

	- 33 -
		14.09.42	North Atlantic
		02.00		Outgoing Officer-Only Radio Message:  End Point Kern unknown.  Order 487 I d unclear.  Question mine point Order 481 B I 1 d.
		04.00	CF 1312	Position.
		07.45		Test dive.
		08.00	BE 7888	Position.
			ESE 1, Sea 1, 2/10, +21°C
		08.00		Surfaced.
		10.45		Incoming Officer-Only Radio Message from B.d.U.:
				Subject entry route Lorient.
		12.00	BE 7945	Position, day's run:  200 nm     0.5 nm
		16.00	BE 7953	Position.
		20.00	BE 8714	Position.
		24.00	BE 8486	Position.
				Abandoned the 600-meter wavelength.
		15.09.42	North Atlantic
		04.00	BE 8548	Position.
		08.00	BE 8553	Position.
			E 2, Sea 1-2, 1/10, 1035 mb, +15°C
		12.00	BE 8612	Position, day's run:  208 nm
		16.00	BE 8394	Position.
		20.00	BE 9146	Position.
		24.00	BE 9129	Position.
		16.09.42	North Atlantic
		00.02		Test dive.
		00.20		Surfaced.
		04.00	BE 9212	Position.
		08.00	BE 6886	Position.
			E 2, Sea 2, 8/10, 1036 mb, +16°C
		08.10		Crash dive for training.  Proceeded submerged due to very bad cloudiness.
		12.00	BE 6892	Position, day's run:  186 nm     8 nm
		16.00	BE 6868	Position.
		20.00	BE 6869	Position.
		21.55		Surfaced, charging transit.
		24.00	BE 6951	Position.
		17.09.42
		02.35		Dived - proceeded submerged.
		04.00	BE 6938	Position.
		07.30		Surfaced to take a navigation fix.
		07.55		Dived - proceeded submerged.
		08.00	BE 6936	Position.
		12.00	BF 4714	Position.
		15.05		3 aircraft bombs at about 25 nm range.
		16.00	BF 4712	Position.
		20.00	BF 4721	Position.
		24.00	BF 4722	Position.

	Sun and Moon Data 14.09.42
	Sun and Moon Data 15.09.42
	Sun and Moon Data 16.09.42
	Sun and Moon Data 17.09.42

	- 34 -
		18.09.42	Bay of Biscay
		00.35		Surfaced, charging transit.  Very bright moonlit night.
		04.00	BF 4732	Position.
		05.48		Dived.
		07.30		Surfaced for a navigation fix.
		07.42		Dived.
		08.00	BF 4812	Position.
			ESE 2, Sea 1, 1-2/10, 1028 mb, +15°C
		11.30		Several aircraft bombs at about 15 nm range.
		12.00	BF 4822	Position, day's run:  41 nm     34 nm
		16.00	BF 4831	Position.
		16.05		Further aircraft bombs at about 15 nm range.
		19.05		Further aircraft bombs at the same range.
		19.15		Further aircraft bombs at the same range.
		20.00	BF 4598	Position.
		24.00	BF 4599	Position.
		19.09.42	Bay of Biscay
		02.08		Surfaced, charging transit.  The sky is cloudy, strong marine phosphorescence.
		04.00	BF 4679	Position.
		07.00		Dived, proceeded submerged.
		08.00	BF 4689	Position.
		12.00	BF 4694	Position, day's run:  37 nm     38 nm
		16.00	BF 4696	Position.
		20.00	BF 5474	Position.
		21.30		Surfaced to take a navigation fix.
		21.40		Dived.
		24.00	BF 5475	Position.
		20.09.42	Bay of Biscay
		02.00		Surfaced.  High bright light 2000 meters away, vessel not distinguished.
		02.30	BF 5475	Dimmed vessel 800 meters abeam to starboard.  Morses unreadable with dimmed top lantern.  Crash dive.
		03.00	Surfaced, charging transit.
		04.00	BF 5485	Position.
		07.17		Dived, proceeded submerged.
		08.00	BF 5574	Position.
		12.00	BF 5576	Position.
		12.30		Surfaced.
		13.24		Crash dive for formation of 2 aircraft.  Distance 3000 meters bearing 30°T, course N to NW.  Suspect Ju 88.
		14.10		Surfaced.
		11.34		Radio Message from 2.U-Flottille:  U-173 immediately report arrival.
		14.58		Outgoing Radio Message:  20.00 hours.    - Beucke -
		15.40		Radio Message from 2.U-Flottille:  U-173 escort positioned 19.00 hours Lucie 2.
		16.00	BF 5534	Position.
		20.30		Escort vessel in sight Point Lucie 2.
		20.00	BF 6743	Position.
		20.45		Radio Message from 2.U-Flottille:  Beucke display red lanterns over the entire horizon.
		22.45		Boat made fast Lorient.

	Sun and Moon Data 18.09.42
	Sun and Moon Data 19.09.42
	Sun and Moon Data 20.09.42

 

	Enclosures to U-173's KTB - click on the text at left to proceed to the document
Chart	Track chart covering the entire patrol

 

	Comments of the Befehlshabers der Unterseeboote
	on the Kriegstagebuch "U-173" from 7.6. - 20.9.42.
	Even taking into account that it is the first patrol of the boat and Kommandant and operational freedom was limited by damage to both periscopes, the conduct patrol lasting more than 3 months was unsatisfactory.  The Kommandant is not blameless for the lack of success.  With greater toughness and more skill he could have gotten more out of it.
	In detail it is noted: 1.) Aircraft lookout during the entire patrol was unsatisfactory.  The boat was often seen and bombed. 2.) On 28 June the Kommandant was immediately inclined to suspect a boat trap. The steamer later turned out to be a harmless Irishman. 3.) On 29 June after the misses the enemy was let go too early, again because a U-boat trap was suspected. Instead of a 2- fan a 3-fan would have been more appropriate. 4.) On 6 July moved off too long submerged.  The steamer should have been a certain prey. 5.) On 8 August again a 3-fan would have been more correct.  Also this steamer was lost by awkward behavior at dusk. 6.) Am 17 August after the many failures the Kommandant should have forced success and shot a 4-fan. Steamer was also again lost at dusk. To maneuver ahead by listening is wrong and has little prospect of success.  Sound bearings are a very good indication.  They must be used to get visual contact as quickly as possible.
		Signed in draft:    D  ö  n  i  t  z
		For correctness:
		Oberleutnant M.A. and Adjutant

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