U-boat Archive - U-boat KTB - U-180 1st War Patrol

U-180 - 1st War Patrol

Translation by Jerry Mason with the help of Andi Forster

Departed	Date	Arrived	Date	Days at Sea
Kiel	9 February 1943	Bordeaux	3 July 1943	145

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

Ships Hit
Date	KTB Time	Position	Ship	Tons	Nationality	Convoy
18 Apr 43	03.36 - 04.16	35°09'S, 36°00'E	CORBIS	8,132	British
3 Jun 43	23.40	7°39'S, 18°45'W	BORIS	5,166	Greek

			Total = 13,298
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.

16 May 1942

         Commissioning by the Kommandanten in

Bremen (Shipyard: A.G. Weser)

17 to 21 May 1942

Fitting out and remaining work in the shipyard.

21 and 22 May 1942

Transit from Bremen to Kiel

23 to 25 May 1942

Fifth U.-Flottille

26 May to 11 June 1942

U.A.K. Testing Kiel

12 and 13 June 1942

Transit to Stettin

14 and 15 June 1942

Transit to Rönne and sound trials by U.A.G. "Schall"

16 and 17 June 1942

Transit to Danzig U.A.G.

18 to 25 June 1942

U-boat Base Danzig

26 June to 17 July 1942

U.A.G. testing Danzig

18 July 1942

Transit to Hela

19 July to 16 August 1942

Agru Front Hela

17 Aug 1942

Transit to Danzig

18 to 20 August 1942

U.A.G. testing Danzig

21 to 30 August

25th U.-Flottille Danzig

31 August 1942

Transit to Gotenhafen

1 to 9 September 1942

Tactical training

10 September 1942

Transit to Danzig

11 and 12 September 1942

25th U.Flottille Danzig



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

- 1 -

13 September 1942

Transit to Rönne

14 September 1942

Sound trials by U.A.G. "Schall"

15 and 16 September 1942

Transit to Kiel

17 and 18 September 1942

Transit to Bremen

19 September to 19 December 1942

Shipyard period in Bremen A.G.Weser

Final adjustments and overhaul

20 to 22 December 1942

Transit to Kiel

23 to 25 December

Fifth U.-Flottille

26 and 27 December 1942

Transit to Rönne

Sound trial for the propellers by U.A.G. "Schall"

28 December 1942

Transit to Kiel

28 December 1942 to 7 January 1943

Agru-Front

8 and 9 January 1943

Transit to Kiel

10 to 19 January 1943

Shipyard Deutsche Werke Kiel

20 January to 1 February 1942

Outfitting of the boat for the Front

9 February   Put to sea for the first patrol.



               Korv. Kpt. and Kommandant










			K r i e g s t a g e b u c h

				"U-180"





			Beginning on:	9 February 1943
			Ending on:	3 July 1943






				Kommandant:
				Korv.Kapitän Musenberg.
				===================

- 1 -




	09.02.43	Kiel Bay, western Baltic
	08.00	S 3, Sea 2, heavily cloudy, Vis. 8 nm	Put to sea from U-boat Base Kiel for war patrol.
	08.10		Embarked: Herr Subhas Chandra Bose and Herr Abid Hasen.
			The boat has cargo for the German Naval Attaché in Japan and for the Kaiserlich Japanese Kriegsmarine as well as for Ship 28. The guests and the cargo were to be transferred to a Japanese U-boat in the vicinity of Madagascar.
	11.15		Taken in convoy (Point Rot 15) by Sperrbrecher 131. Great Belt cruise to Point Schwarz 24.

	10.02.43	Kattegat and Skagerrak
		SE 5, Sea 3, light overcast
	09.30		Sperrbrecher released and escort taken over by two Vorpostenboote (VÖK and VÖR). Transit through the Kattegat and Skagerrak to Kristiansand.
	17.50		Vorpostenboote released.
	19.33		Stopped at Kristiansand-Marviken for fuel supply.
			Day's run: Kiel-Kristiansand 372 nm.

	11.02.43	Northern North Sea
	07.30	W 2, Sea 1, light overcast, Vis. 10 nm	Cast off Kristiansand under escort by Vorpostenboot PLG.
		W 2, Sea 1, light overcast, Vis. 10 nm	Transit on the route to Egersund.
	12.23 - 12.57	AN 3529	Test dive and deep dive.
	16.45		Stopped at Egersund.
			Day's run: Kristiansand-Egersund 85 nm.

	12.02.43	Northern North Sea
	11.30	W 6-7, Sea 5, overcast, Vis. 5 nm	Put to sea from Egersund under escort by Vorpostenboot PLG.
			Transit to the north under the coast.
	16.20	AN 3134	Released Vorpostenboot, set off from the coast for independent transit.
	20.00	AN 3113
	24.00	AN 2947

	13.02.43	Northern North Sea
	00.00	AN 2947	Course: 0°, turns for 10 knots.
		NWbyW 8, Sea 6-7, overcast, Vis. 3 nm

	Sun and Moon Data 09.02.43
	Sun and Moon Data 10.02.43
	Sun and Moon Data 11.02.43
	Sun and Moon Data 12.02.43
	Sun and Moon Data 13.02.43

- 2 -



	continued
	13.02.43	Northern North Sea
	04.00	AN 2863
	07.30	AN 2853	Dived to proceed submerged.
	08.00	AN 2853
	12.00	AN 2396
		Lat. - 60° 00'N
		Long. - 4° 00'E	Day's run: 129.5 nm Surfaced
			11 nm Submerged.
	16.00	AN 2369
	18.07		Surfaced.
	20.00	AN 2363

	14.02.43	Northern North Sea
	00.00	AF 8784	Course: 345°, turns for 10 knots.
		N 5, Sea 4, overcast, rain, Vis. 3-4 nm
	07.30	AF 8472	Dived to proceed submerged.
	08.00	AF 8472
	12.00	AF 8445
		Lat. - 62° 10'N
		Long. - 3° 06'E	Day's run: 106 nm Surfaced, 27.5 nm Submerged.
	16.00	AF 8441
	18.25		Surfaced.
	20.00	AF 7599

	15.02.43	Northern North Sea
	00.00	AF 7328	Course: 295°, turns for 14 knots.
		NE 1, Sea 1, heavily cloudy, Vis. 4-5 nm
	04.00	AF 4866
	08.00	AF 4816	Dived to proceed submerged.
	12.00	AF 4496
		Lat. - 64° 40'N
		Long. - 1° 40'W	Day's run: 153.7 nm Surfaced, 21.8 nm Submerged.
	16.00	AF 4496
	20.00	AF 4493
	21.12		Surfaced.

	16.02.43	Norwegian Sea
	00.00	AF 4476
		NNW 5, Sea 4, heavily cloudy, Vis. 4 nm
	08.00	AE 6859
	08.30		Dived to proceed submerged.
	12.00	AE 6858
		Lat. - 63° 54'N
		Long. - 7° 30'W	Day's run: 136.5 nm Surfaced, 19 nm Submerged.

	Sun and Moon Data 13.02.43
	Sun and Moon Data 14.02.43
	Sun and Moon Data 15.02.43
	Sun and Moon Data 16.02.43

- 3 -



	continued
	16.02.43	Norwegian Sea
	16.00	SE 6881
	19.55		Surfaced.
	20.00	AE 6875

	17.02.43	Iceland-Faros Strait
	00.00	AE 9123	Course: 256°, turns for 10 knots
		WbyS 5, Sea 5, overcast, Vis. 3 nm, +8°C
	08.00	AE 8337
	09.00		Dived to proceed submerged.
	12.00	AE 8364
		Lat. - 63° 08'N
		Long. - 11° 30'W	Day's run: 103 nm Surfaced, 22 nm Submerged.
	16.00	AE 8359
	20.00	AE 8381	Surfaced.

	18.02.43
	00.00	AE 8384	Course: 210°, turns for 7 knots.
		WSW 9, Sea 8, few clouds, squalls, Vis. greatly changing
	04.00	AE 8387
	08.00	AE 8616
	09.22		Dived to proceed submerged.
	12.00	AE 8615
		Lat. - 62° 32'N
		Long. - 12° 46'W	Day's run: 34 nm Surfaced, 22 nm Submerged.
	14.00		Surfaced.
	16.00	AE 8312
	16.24		Dived.
	20.00	AE 8619
	20.10		Surfaced.

	19.02.43	Iceland-Faros Strait
	00.00	AE 8555	Course: 280°, turns for 7 knots.
		SW 6, Sea 5, overcast, +3°C, Vis. 2-3 nm
	04.00	AE 8546
	08.00	AE 8546
	09.00	SW 10-12 and more, hurricane, Sea 9, 983 mb, hail and snow squalls, Vis. 1 nm
	08.55		Dived to proceed submerged.
	12.00	AE 8548
		Lat. - 62° 11'N
		Long. - 15° 06'W	Day's run: 51 nm Surfaced, 18.5 nm Submerged.

	Sun and Moon Data 16.02.43
	Sun and Moon Data 17.02.43
	Sun and Moon Data 18.02.43
	Sun and Moon Data 19.02.43

- 4 -



	continued
	19.02.43	Iceland-Faros Strait
	16.00	AE 8547
	19.59		Surfaced.
	20.00	AE 8493

	20.02.43	North Atlantic
	00.00	AE 7931	Course: 210°, turns for 9 knots.
		WSW 5, Sea 4, lightly cloudy, Vis. 3 nm
	04.00	AE 7958
	08.00	AL 3112
	12.00	AL 2237
		Lat. - 60° 39'N
		Long. - 19° 45'W	Day's run: 113 nm Surfaced, 15 nm Submerged.
	16.00	AL 2251
	20.00	AL 2247

	21.02.43	North Atlantic
	00.00	AL 2274	Course: 205°, turns for 7 knots.
		SW 6, Sea 4-5, against, Vis. 2-3 nm
	04.00	AL 2283
	08.00	AL 2422	According to general Radio Message instructions dived to proceed submerged due to disposition of a reconnaissance line against a NE-bound convoy, to avoid being disturbed by aircraft.
	12.00	AL 2424
		Lat. - 59° 55'N
		Long. - 20° 22'W	Day's run: 76 nm Surfaced, 7.5 nm Submerged.
	16.00	AL 2424
	20.00	AL 2448

	22.02.43	North Atlantic
	00.00	AL 2624	Course: 220°, turns for 7 knots.
		WSW 7-8, Sea 6-7, overcast, rain, Vis. 5 nm
	04.00	AL 2646
	08.00	AL 2815
	12.00	AL 2814

	Sun and Moon Data 19.02.43
	Sun and Moon Data 20.02.43
	Sun and Moon Data 21.02.43
	Sun and Moon Data 22.02.43

- 5 -



	continued
	22.02.43	North Atlantic
	12.00	AL 2814
		Lat. - 58° 03'N
		Long. - 21° 03'W	Day's run: 99.4 nm Surfaced, 4.4 nm Submerged.
	16.00	AL 2738
	20.00	AL 2729
		The bad weather period of the last few days has shown that the boat is slowed significantly by the Sea State and sustaining the RPM results in greatly increased fuel consumption. Speed loss in Sea State 6-8 is 50-70%. A fuel calculation based on the naval square AL 2261 on 20 February and an inventory of 400 cbm shows that now for round trip at RPM for 8-9 knots requires 385 cbm, leaving only 15 cbm available reserve for a period of about 4.5 months. Therefore I sent a Radio Message to Leadership concerning the fuel situation.
		The characteristics of the boat in a heavy Sea State are good.

	23.02.43	North Atlantic
	00.00	AL 2746	Course: 250°, turns for 7 knots.
		SW 7, Sea 5-6, rain, Vis. 1-2 nm
	04.00	AL 2746
	08.00	AL 1869
	12.00	AL 1859
		Lat. - 57° 23'N
		Long. - 23° 28'W	Day's run: 88 nm Surfaced.
	12.10		Incoming Radio Message 1224/26/136.
			Boat received orders to get 60 cbm from Vowe in square BD 8111. Fuel and further cargo for Japanese boat will be taken over.
	14.35	AL 2771	The first steamer in sight to port bearing 150°T, approximate course 60°, estimated range 6 nm. Steamer was only distinguished 2 times briefly, when the boat was especially high on a swell, immediately turned towards and pursued, steamer did not come in sight anymore due to continual snow and hail squalls. Boat was swamped 2 times by heavy seas from astern. The type of steamer was a 1 smokestack steamer of the CANADIAN LINE (17-18 knots).
		WbyS 6-7, very high Swell

	Sun and Moon Data 22.02.43
	Sun and Moon Data 23.02.43

- 6 -



	continued
	23.02.43	North Atlantic
			I suspect that on our first sighting we saw one another because we were lifted very high out. I broke off the search after an hour because in the prevailing weather conditions it seems pointless and weapons use is not possible.
			In the over running seas 3 restraining belts had their hooks completely broken.
			The danger of breakage or staining of individual parts of the restraining belts exists most of all at the moment of immersion. Therefore, make sure that the lanyard of the belts are always slightly tensioned in order to avoid strong jolts. The easiest way to achieve this would be through a small attachment railing at about 20-30 cm from floor level.
	16.00	AL 2771
	20.00	AL 2774

	24.02.43	North Atlantic
	00.00	AL 0132	Course: 220°, turns for 8 knots.
		WSW 4, Sea 3, cloudy, Vis. 1-2 nm
	04.00	AL 0129
	08.00	AL 0143
	09.20		Dived to maintain the torpedoes.
	12.00	AL 1996
		Lat. - 56° 46'N
		Long. - 24° 30'W	Day's run: 103 nm Surfaced, 7 nm Submerged.
	13.15		Surfaced to ventilate.
	13.45		Dived.
	16.00	AL 0171
	18.25		Surfaced.
	20.00	AL 1999

	25.02.43	North Atlantic
	00.00	AL 4139	Course: 200°, turns for 8 knots.
		WNW 6-7, Sea 5, heavily cloudy, rain, Vis. changing
	04.00	AL 4165
	08.00	AL 4197

	Sun and Moon Data 23.02.43
	Sun and Moon Data 24.02.43
	Sun and Moon Data 25.02.43

- 7 -



	continued
	25.02.43	North Atlantic
	12.00	AL 4428
		Lat. - 55° 00'N
		Long. - 25° 12'W	Day's run: 80.5 nm Surfaced, 5 nm Submerged.
	16.00	AL 4465
	20.00	AL 4725

	26.02.43	North Atlantic
	00.00	AL 4727
		SW 3-4, Sea 3, overcast, Vis. up to 5 nm
	04.00	AL 4749
	08.00	AL 4777
	10.16		Dived.
	12.00	AK 9336
		Lat. - 53° 33'N
		Long. - 26° 38'W	Day's run: 104.8 nm Surfaced, 3.5 nm Submerged.
	12.50		Surfaced.
	16.00	AK 9361
	20.00	AK 9383

	27.02.43	North Atlantic
	00.00	AK 9382	Course: 230°, turns for 8 knots.
		SbyW 7, Sea 5-6, heavily overcast, Vis. 3 nm
	04.00	AK 9397
	08.00	AK 9612
	11.40		Dived for depth control training in heavy seas.
	12.00	AK 9536
		Lat. - 52° 31.5'N
		Long. - 27° 58'W	Day's run: 71.5 nm Surfaced, 0.8 nm Submerged.
	15.20		Surfaced.
	16.00	AK 9563
	20.00	AK 9591

	28.02.43	North Atlantic
	00.00	AK 9824
		Wind 0, medium Swell, Vis. 5 nm
	04.00	AK 9848
	08.00	AK 9877
	12.00	BD 2362
		Lat. - 50° 40.5'N
		Long. - 29° 21'W	Day's run: 118.5 nm Surfaced.

	Sun and Moon Data 25.02.43
	Sun and Moon Data 26.02.43
	Sun and Moon Data 27.02.43
	Sun and Moon Data 28.02.43

- 8 -



	continued
	28.02.43	North Atlantic
	13.00 - 13.43		Test dive.
	16.00	BD 2383
	20.00	BD 2631

	01.03.43	North Atlantic
	00.00	BD 2655	Course: 230°, turns for 8 knots.
		SbyW 2-3, Sea 2, misty, Vis. 2-3 nm
	04.00	BD 2676
	08.00	BD 2914
	12.00	BD 2944
		Lat. - 48° 44.5'N
		Long. - 31° 06.5'W	Day's run: 134 nm Surfaced, 2 nm Submerged.
	16.00	BD 2893
	20.00	BD 5228
	20.21 - 22.00		Test dive.

	02.03.43	North Atlantic
	00.00	BD 5251
		S 1-2, Sea 1, light overcast, Vis. 4 nm
	04.00	BD 5278
	08.00	BD 5463
	12.00	BD 5494
		Lat. - 46° 35'N
		Long. - 32° 58'W	Day's run: 140 nm Surfaced, 2 nm Submerged.
	16.00	BD 5725
	20.00	BD 5777
	20.05	BD 8111	Arrived in the tanker square and met U-468, who is also to supply. Because the tanker is not present, I believe at the moment it has moved off refueling another boat before the sea. Therefore by night moved back and forth in position in the lee of the tanker square to meet the tanker the next day.

	03.03.43	North Atlantic
	00.00	SE 1-2, Sea 1, lightly cloudy, Vis. 3-4 nm

	Sun and Moon Data 28.02.43
	Sun and Moon Data 01.03.43
	Sun and Moon Data 02.03.43
	Sun and Moon Data 03.03.43

- 9 -



	continued
	03.03.43	North Atlantic
	04.00	BD 4999
	08.00	BD 7336	Search courses for the tanker.
	12.00	BD 7333
		Lat. - 45° 33'N
		Long. - 33° 55'W	Day's run: 165 nm Surfaced
	14.45	BD 8111	U-tanker in sight.
	15.00 - 22.00		60 cbm oil, 600 liters of lubricating oil, provisions for 14 days and additional cargo for Japanese U-boat taken over.
	16.00	BD 8111
	20.00	BD 8111
	22.00 - 01.00		Took over screening for U-tanker, which had seen a flashing light bearing 300°T, we ourselves had not seen it.

	04.03.43	North Atlantic
	00.00	BD 8111
		NE 1, Sea 1, clear sky
	01.00	BD 8111	Continued the transit, course 180°, turns for 8 knots.
	04.00	BD 8147
	08.00	BD 8414
	09.33 - 09.55		Exercise dive.
	12.00	BD 8447
		Lat. - 44° 42'N
		Long. - 34° 08'W	Day's run: 79.2 nm Surfaced, 1.1 nm Submerged.
	16.00	BD 7669
	17.20	BD 7693	Drifting English lifeboat, provisions and water were half consumed, canned fruits were manufactured in the fall of 1942; condition of the raft suggests it was drifting a long time, (Mussels affixed)
	20.00	BD 7699

	05.03.43	Atlantic
	00.00	BD 7966
		E 1-2, Sea 1, isolated clouds, Vis. good

	Sun and Moon Data 03.03.43
	Sun and Moon Data 04.03.43
	Sun and Moon Data 05.03.43

- 10 -



	continued
	05.03.43	Atlantic
	04.00	CE 1212
	08.00	CE 1245
	12.00	CE 1512
		Lat. - 40° 58'N
		Long. - 33° 57'W	Day's run: 167 nm Surfaced.
	16.00	CE 1549
	20.00	CE 1816

	06.03.43	West of the Azores
	00.00	CE 1873	Course: 180°, turns for 8 knots.
		NE 2-3, Sea 1-2, light overcast, Vis. good
	04.00	CE 4219
	08.00	CE 4276
	08.05	CE 4276	Portuguese steamer with perfect neutrality markings, requested name by Morse, ALVARO MARTINS HOMEN 1000 GRT, name and appearance match Gröner.
	11.00 - 11.45		Exercise dive.
	12.00	CE 4517
		Lat. - 39° 10'N
		Long. - 34° 11'W	Day's run: 175 nm Surfaced, 3 nm Submerged.
	16.00	CE 4572
	20.00	CE 4818

	07.03.43	West of the Azores
	00.00	CE 4875
		NNE 5, Sea 4, Vis. good
	04.00	CE 7242
	08.00	CE 7275
	12.00	CE 7515
		Lat. - 36° 25'N
		Long. - 34° 06'W	Day's run: 165 nm Surfaced.
	16.00	CE 7572
	20.00	CE 7819

	08.03.43	West of the Azores
	00.00	CE 7873
		NE 6, Sea 5, overcast, rain, Vis. 2-3 nm

	Sun and Moon Data 05.03.43
	Sun and Moon Data 06.03.43
	Sun and Moon Data 07.03.43
	Sun and Moon Data 08.03.43

- 11 -



	continued
	08.03.43	Southwest of the Azores
	04.00	DG 1127
	08.00	DG 1181
	12.00	DG 1421
		Lat. - 33° 55'N
		Long. - 33° 53'W	Day's run: 151 nm Surfaced.
	16.00	DG 1454
	16.28 - 17.43		Exercise dive.
	20.00	DG 1476

	09.03.43	Southwest of the Azores
	00.00	DG 1718	Course: 180°, turns for 8 knots.
		NNE 4, Sea 4, overcast, Vis. medium
	04.00	DG 1773
	08.00	DG 4119
	12.00	DG 4173
		Lat. - 31° 25.0'N
		Long. - 33° 57.0'W	Day's run: 149 nm Surfaced, 4 nm Submerged.
	16.00	DG 4419
	20.00	DG 4473

	10.03.43	South of the Azores
	00.00	DG 4716
		NE 3, Sea 3, overcast
	04.00	DG 4773
	08.00	DG 7116
	12.00	DG 7149
		Lat. - 28° 44'N
		Long. - 34° 03'W	Day's run: 156 nm Surfaced.
	15.00		Incoming Radio Message 1412/10/358.
			Boat was to report when naval square JA 24 can be reached and what day's run is expected in view of the Trade Winds.
	16.00	DG 7416
	20.00	DG 7457
	20.15		Outgoing Radio Message 2015/10/361. Question was answered with: Days run average 140 nm and 45 days to named square, at the same time asked whether the boat is subject to any attack restrictions.

	Sun and Moon Data 08.03.43
	Sun and Moon Data 09.03.43
	Sun and Moon Data 10.03.43

- 12 -



	continued
	10.03.43	South of the Azores
		The specified low day's run results from the consideration that with turns for 8 knots the boat will on average make 6 knots over the ground considering the Trade Winds and the winter half of the year in the south. Turns for 8 knots must be maintained as transit speed, because otherwise the boat cannot make the entire trek without another supply due to its relatively high fuel consumption. (In so doing a leeway of around 50 cbm was expected for operations) The boat has about 30% higher fuel consumption compared to the type IX D 2 at low speeds.
	23.00		Incoming Radio Message 2245/10/64.
			Attack free only on un-escorted independents outside of Route Anton.
		Thus, the selection of the course is a mixture of the hope of meeting an independent and the safety of the embarked guests also in relation to the air danger.

	11.03.43	West of the Canary Islands
	00.00	DG 7725	Course: 160°, turns for 8 knots.
		NE 3, Sea 2, light overcast, Vis. good
	04.00	DG 7759
	08.00	DS 2111
	10.15 - 11.04		Exercise dive.
	12.00	DS 2146
		Lat. - 26° 08'N
		Long. - 33° 13'W	Day's run: 158 nm Surfaced, 2 nm Submerged.
	16.00	DS 2424
	20.00	DS 2459

	12.03.43	Southwest of the Canary Islands
	00.00	DS 2732
		NNE 3, Sea 2, light overcast, Vis. good
	04.00	DS 2769
	08.00	DS 5212
	11.50		Incoming Radio Message: 1131/12/376.
			On request the boat received orders to ensure that the meeting point naval square JA 2432 is reached with certainty on 23 April 1943.

	Sun and Moon Data 10.03.43
	Sun and Moon Data 11.03.43

- 13 -



	continued
	12.03.43	Southwest of the Canary Islands
	12.00	DS 5254
		Lat. - 23° 28'N
		Long. - 32° 05'W	Day's run: 174 nm Surfaced.
		The order to be at the meeting point on 23 April means that from square DS 52 the boat must cover 6400 miles in 41 days. That requires a day's run of 156 nm per day. Because with RPM for 8 knots considering the Trade Winds and the time of year I cannot count on this day's run, from 13 March 1943 at 00.00 hours initially I will go to RPM for 10 knots to create a bit of leeway with the good weather conditions. Will check after 5 days.
	16.00	DS 5522
	20.00	DS 5567

	13.03.43	Southwest of the Canary Islands
	00.00	DS 5839	Course: 160°, turns for 10 knots.
		NE 2-3, Sea 1, few clouds, Vis. good
	04.00	DS 5975
	08.00	DS 8354
	12.00	DS 8634
		Lat. - 20° 00'N
		Long. - 30° 56'W	Day's run: 209 nm Surfaced.
	16.00	DS 8691
	20.00	DS 8961	All diesels run at high speed briefly for training, they smoke so heavily that going quickly to high speed for a maneuver ahead without being noticed is nearly impossible.

	14.03.43	West of Cape Verde
	00.00	EH 2335
		ENE 1-2, Sea 1, overcast, Vis. good
	04.00	EH 3174
	08.00	EH 3446
			Radio Message: with Keyword "Nelke"
			1003/14/333; 1017/14/334; 1025/14/336; and 1100/14/337.
			Instructions concerning Recognition Signal exchange and bearing signals with Japanese U-boat.
	12.00	EH 3722
		Lat. - 16° 42'N
		Long. - 30° 14.5'W	Day's run: 210 nm Surfaced.

	Sun and Moon Data 12.03.43
	Sun and Moon Data 13.03.43
	Sun and Moon Data 14.03.43

- 14 -



	continued
	14.03.43	West of Cape Verde
	16.00	EH 3791
	18.15 - 19.35		Exercise dive.
	20.00	EH 6163

	15.03.43	West of Cape Verde
	00.00	EH 6277	Course: 140°, turns for 10 knots.
		E 3-4, Sea 2-3, overcast, Vis. good
	04.00	EH 6552
	08.00	EH 6596
	12.00	EH 6983
		Lat. - 13° 52'N
		Long. - 28° 38.5'W	Day's run: 195.5 nm Surfaced, 2.5 nm Submerged.
	16.00	EH 6959
	20.00	EJ 7117

	16.03.43	Southwest of Cape Verde
	00.00	EJ 7182
		NE 3-4, Sea 2-3, heavily overcast, Vis. 4 nm
	04.00	EJ 7183
	08.00	EJ 7573
	12.00	EJ 7834
		Lat. - 11° 22.5'N
		Long. - 26° 32.5'W	Day's run: 204 nm Surfaced.
	16.00	EJ 7944
	20.00	EJ 7988

	17.03.43	South of Cape Verde
	00.00	ES 1365	Course: 130°, turns for 10 knots.
		NO 3-4, Sea 3, cloudy, Vis. good
	04.00	ES 2184
	08.00	ES 2436
	10.00 - 11.06		Diving training.
	12.00	ES 2546
		Lat. - 09° 13'N
		Long. - 24° 21'W	Day's run: 195 nm Surfaced, 2 nm Submerged.

	Sun and Moon Data 14.03.43
	Sun and Moon Data 15.03.43
	Sun and Moon Data 16.03.43
	Sun and Moon Data 17.03.43

- 15 -



	continued
	17.03.43	South of Cape Verde
	16.00	ES 2586
	20.00	ES 2917

	18.03.43	South of Cape Verde
	00.00	ES 2983
		NE 2-3, Sea 2, overcast, Vis. good
	04.00	ES 6114
	08.00	ES 6156
	12.00	ES 6178
		Lat. - 07° 56'N
		Long. - 21° 47'W	Day's run: 214 nm Surfaced.
	13.35		Incoming Radio Message 1059/18/496 and 1619/18/472.
			Instructions to head for naval square FD 3155 to provide Doctor's assistance to an Italian U-boat.
	16.00	ES 6462
	20.00	ES 6732

	19.03.43	South of Cape Verde
	00.00	ES 6768	Course: 175°, turns for 8 knots.
		NE 2, Sea 1-2, few clouds, Vis. good
	04.00	ES 6115
	08.00	ES 9199
	12.00	ES 9544
		Lat. - 03° 55'N
		Long. - 21° 42'W	Day's run: 200 nm Surfaced.
	16.00	ES 9574
	20.00	ES 9762

	20.03.43	Near the Equator
	00.00	ES 9792
		Wind 0, Swell 1, Vis. good
	04.00	ES 3134
	07.00	FD 3155 (FD)	Boat is positioned at the meeting point with the Italian U-boat. Boat not distinguished, therefore search courses around the meeting square.
	09.18 - 09.48		Dived to listen - without success -.
	12.00	FD 3153
		Lat. - 01° 57'N
		Long. - 22° 09'W	Day's run: 140.8 nm Surfaced, 2 nm Submerged.

	Sun and Moon Data 17.03.43
	Sun and Moon Data 18.03.43
	Sun and Moon Data 19.03.43
	Sun and Moon Data 20.03.43

- 16 -



	continued
	20.03.43	Near the Equator
	16.00	FD 3159
	19.56		Outgoing Radio Message: 1801/20/493.
			Report to Leadership that up to now there has been no meeting with the Italian, bearing signals from him which he should send from 12.00 hours half-hourly were heard only at 14.00 and 15.00 hours, ran 30 nm in the direction of the bearing without a successful meeting.
	20.00	FD 3431
	21.34		Incoming Radio Message 2114/20/494.
			Instruction to attempt meeting with the Italian U-boat by the same program (sending bearing signals).

	21.03.43	Near the Equator
	00.00	FD 3197
		NNE 1, Sea 0-1, Vis. good
	04.00	FD 3186
	08.00	FD 3155	Boat is positioned at the meeting point for the Italian U-boat.
	12.00	FD 3155
		Lat. - 1° 59'N
		Long. - 22° 12'W	Day's run: 116 nm Surfaced.
	15.15		Outgoing Radio Message: 1457/21/569.
			Report to Leadership that despite searching the Italian U-boat was not met and no bearing signals were heard.
	16.00	FD 3155
	17.45		Incoming Radio Message: 1655/21/401.
			Instructions to the boat, to send own bearing signals from 18.00 hours and if there is no meeting on 04.00 hours on 22 March to continue transit.
	20.00	FD 3154

	22.03.43	Near the Equator
	00.00	FD 3154
		N 1, Sea 0, overcast, Vis. good
	04.00	FD 3155	Outgoing Radio Message: 0338/22/406.
			Report to Leadership that up to 03.30 hours half-hourly

	Sun and Moon Data 20.03.43
	Sun and Moon Data 21.03.43
	Sun and Moon Data 22.03.43

- 17 -



	continued
	22.03.43	Near the Equator
	04.00		bearing signals were given. Continued transit meeting not successful.
	08.00	FD 3198
	12.00	FD 3527
		Lat. - 01° 14'N
		Long. - 21° 28'W	Day's run: 105 nm Surfaced.
			Course: 137°, turns for 8 knots.
	16.00	FD 3559
	20.00	FD 3833
	21.00 - 21.25		Exercise dive.

	23.03.43	Equator
	00.00	FD 3943
		SSE 1, Sea 0-1, Vis. good, overcast
	04.00	FD 3983
	08.00	FD 6336
	12.00	FE 4157	Day's run: 176 nm Surfaced, 1.3 nm Submerged.
		Lat. - 00° 51'N
		Long. - 19° 32'W
	16.00	FE 4431	A fresh water condenser failed. In response strong control of water consumption and water rationing was ordered. An unpleasant failure in the tropics, especially with the type IX D 1 because of the diesels with fresh water cooling which have repeatedly had leakages with their sensitive piping system. Failure means the crew can only wash with seawater for the duration of the journey.
	20.00	FE 4542

	24.03.43	South Atlantic
	00.00	FE 4585	Course: 137°, turns for 8 knots.
		SE 1-2, Sea 0-1, overcast, Vis. good
	04.00	FE 4835
	08.00	FE 4945
	12.00	FE 4988
		Lat. - 02° 55.6'S
		Long. - 13° 36.1'W	Day's run: 170 nm Surfaced.
	16.00	FE 7336
	20.00	FE 8151
		A new check of the action radius and the required speed settings shows: based on square FE 85 on 25 March 1943 08.00 hours

	Sun and Moon Data 22.03.43
	Sun and Moon Data 23.03.43
	Sun and Moon Data 24.03.43

- 18 -



	continued
	24.03.43	South Atlantic
		route to the meeting place = 425 nm in 29 days - a day's run of around 5 knots over the ground. The boat will go on 25 March 1942 08.00 hours to turns for 9 knots: that gives a leeway of 2 days for the route to the meeting point, which is necessary for the weather conditions.
		That leaves a total of about 35 cbm as reserve fuel available for operations etc., with economical return transit (turns for 8 knots).

	25.03.43	South Atlantic
	00.00	FE 8192
		SE 2-3, Sea 2, few clouds
	04.00	FE 8513
	08.00	FE 8529
	09.12 to 09.48		Exercise dive.
	12.00	FE 8559
		Lat. - 04° 33'S
		Long. - 15° 20'W	Day's run: 164 nm Surfaced, 2 nm Submerged.
	16.00	FE 8673
	20.00	FE 8926

	26.03.43	FE 9744	Course 120°, turns for 9 knots.
	00.00	SSE 2-3, Sea 2, individual clouds, Vis. good
	04.00	FE 9784
	08.00	FM 2211
	12.00	FM 2242
		Lat. - 06° 00.9'S
		Long. - 13° 26.2'W	Day's run: 180 nm Surfaced.
	16.00	FM 2259
	20.00	FM 2377

	27.03.43	South Atlantic at Ascension Island
	00.00	FM 2626
		SE 2, Sea 1-2, few clouds, Vis. good
	04.00	FM 3441
	08.00	FM 3482
	08.57 - 10.20		Exercise dive.

	Sun and Moon Data 24.03.43
	Sun and Moon Data 25.03.43
	Sun and Moon Data 26.03.43
	Sun and Moon Data 27.03.43

- 19 -



	continued
	27.03.43	South Atlantic at Ascension Island
	12.00	FM 3498
		Lat. - 07° 27'S
		Long. - 10° 55.8'W	Day's run: 169 nm Surfaced, 3 nm Submerged.
	16.00	FM 3441
	20.00	FM 3866

	28.03.43	South Atlantic
	00.00	FM 3976	Course: 120°, turns for 9 knots.
		SSE 2, Sea 2, few clouds, Vis. good
	04.00	FM 6332
	08.00	FN 4119
	12.00	FN 4167
		Lat. - 08° 51'S
		Long. - 08° 24.8'W	Day's run: 172 nm Surfaced.
	12.57 - 14.07		Exercise dive.
	16.00	FN 4276
	20.00	FN 4534

	29.03.43	South Atlantic
	00.00	FN 4642	With remarkably skilled work Masch.Mt. Maßen sawed out the broken out teeth of the gear wheels of the fresh water maker and replaced them with new ones, unfortunately the pump cannot be placed in operation because the axles are not aligned and bang.
		SE 3, Sea 2-3, overcast, Vis. good
	04.00	FN 4658
	08.00	FN 4696
	10.52 - 11.18		Exercise dive.
	12.00	FN 5716
		Lat. - 10° 21'S
		Long. - 06° 11'W	Day's run: 150 nm Surfaced, 5.5 nm Submerged.
	16.00	FN 5756
	17.30	FN 5768	3 drifting bales of cotton (old because mussels are already attached).
	20.00	FN 5877

	30.03.43	South Atlantic
	00.00	FN 8227
		SE 4, Sea 3, Vis. medium, heavy overcast
	04.00	FN 8291
	08.00	FN 8611
	12.00	FN 8634
		Lat. - 12° 24'S
		Long. - 04° 14'W	Day's run: 168 nm Surfaced.

	Sun and Moon Data 27.03.43
	Sun and Moon Data 28.03.43
	Sun and Moon Data 29.03.43
	Sun and Moon Data 30.03.43

- 20 -



	continued
	30.03.43	South Atlantic
	16.00	FN 8694
	16.30 - 16.xx		Exercise dive.
	20.00	FN 9714

	31.03.43	South Atlantic
	00.00	FN 9758
		SSE 3, Sea 2, lightly overcast, Vis. good
	04.00	FN 9798
	08.00	FU 3242	Course: 149°, turns for 9 knots.
	12.00	FU 3284
		Lat. - 14° 30'S
		Long. - 2° 24'W	Day's run: 164 nm Surfaced, 2 nm Submerged.
	15.34 - 15.56		Exercise dive.
	16.00	FU 3534
	20.00	FU 3569

	01.04.43	South Atlantic, St. Helena	Course: 149°, turns for 9 knots
	00.00	FU 3913
		SE 3-4, Sea 3, overcast, Vis. good
	00.55 - 01.20		Exercise dive.
	04.00	FU 3955
	08.00	FU 3998
	12.00	FU 4141
		Lat. - 16° 53'S
		Long. - 01° 00'W	Day's run: 162 nm Surfaced, 3 nm Submerged.
	16.00	FV 4176
	20.00	FV 4429

	02.04.43	South Atlantic, north of St. Helena
	00.00	FV 4492
		SE 4-5, Sea 4, overcast, Vis. good
	04.00	FV 4815
	08.00	FV 4857

	Sun and Moon Data 30.03.43
	Sun and Moon Data 31.03.43
	Sun and Moon Data 01.04.43
	Sun and Moon Data 02.04.43

- 21 -



	continued
	02.04.43	South Atlantic
	12.00	FV 7222
		Lat. - 19° 15.2'S
		Long. - 00° 22.3'E	Day's run: 164 nm Surfaced.
	16.00	FV 7264
	20.00	FV 7299

	03.04.43	South Atlantic
	00.00	FV 7619
		SE 3-4, light overcast, Sea 3, Vis. medium
	04.00	FV 7682
	08.00	FV 7934
	12.00	FV 7965
		Lat. - 21° 26'S
		Long. - 01° 32'E	Day's run: 147 nm Surfaced.
	16.00	FV 8777
	20.00	GG 3127

	04.04.43	South Atlantic
	00.00	GG 3183
		SE 3, Sea 2, isolated clouds, Vis. good
	04.00	GG 3436
	08.00	GG 3548
	08.32 - 09.04		Exercise dive.
	12.00	GG 3822
		Lat. - 23° 47'S
		Long. - 03° 01'E	Day's run: 164 nm Surfaced, 1.5 nm Submerged.
	16.00	GG 3864
	20.00	GG 3977

	05.04.43	South Atlantic
	00.00	GG 6354
		SE 2, Sea 1-2, overcast, Vis. medium
	04.00	GG 6389
	08.00	GG 6663
	12.00	GH 4476
		Lat. - 26° 19'S
		Long. - 04° 39'E	Day's run: 174 nm Surfaced.
	16.00	GH 4729

	Sun and Moon Data 02.04.43
	Sun and Moon Data 03.04.43
	Sun and Moon Data 04.04.43
	Sun and Moon Data 05.04.43

- 22 -



	continued
	05.04.43	South Atlantic
	17.45 - 18.05		Exercise dive.
	20.00	GG 4793

	06.04.43	South Atlantic
	00.00	GH 7213	Course: 149°, turns for 9 knots.
		SSE 3, Sea 2-3, completely overcast, Vis. medium
	04.00	GH 7258
	08.00	GH 7332
	12.00	GH 7647
		Lat. - 28° 33'S
		Long. - 06° 19'E	Day's run: 170 nm Surfaced, 1 nm Submerged.
	16.00	GH 7687
	17.17 - 17.44		Exercise dive.
	20.00	GH 7953

	07.04.43	South Atlantic at the level of Luderitz Bay
	00.00	GH 7991
		SEbyS 4, Sea 3-4, overcast, Vis. good
	04.00	GQ 2322
	08.00	GQ 2364
	10.30 - 10.55		Exercise dive.
	12.00	GQ 2398
		Lat. - 30° 51'S
		Long. - 07° 29'E	Day's run: 141 nm Surfaced, 3 nm Submerged.
	16.00	GQ 3476

	08.04.43	South Atlantic
	00.00	GQ 3753	Course: 149°, turns for 9 knots.
		SE 1-2, Sea 1, Swell, overcast, Vis. good
	04.00	GQ 3795
	08.00	GQ 6241
	12.00	GQ 6284
		Lat. - 33° 28'S
		Long. - 09° 22'E	Day's run: 182 nm Surfaced.

	Sun and Moon Data 05.04.43
	Sun and Moon Data 06.04.43
	Sun and Moon Data 07.04.43
	Sun and Moon Data 08.04.43

- 23 -



	continued
	08.04.43	South Atlantic
	15.15 - 15.58		Exercise dive.
	16.00	GQ 6529
	20.00	GQ 6596

	09.04.43	South Atlantic, level of Cape Town
	00.00	GQ 6919	Course: 133°, turns for 9 knots.
		S 4, Sea 3-4, overcast, rain, Vis. medium
	04.00	GQ 6959
	08.00	GQ 6999
	12.00	GR 7112
		Lat. - 35° 28'S
		Long. - 11° 29'E	Day's run: 160 nm Surfaced, 1.5 nm Submerged.
	15.38 - 15.57		Exercise dive.
	16.00	GR 7151
	20.00	GR 7191

	10.04.43	South Atlantic, southwest of the Cape of Good Hope
	00.00	GR 7277
		SbyW 2, Sea 0-1, overcast, Vis. good, long Swell
	04.00	GR 7519
	08.00	GR 7559
	11.10 - 11.34		Exercise dive.
	12.00	GR 7674
		Lat. - 37° 04'S
		Long. - 13° 48'E	Day's run: 146 nm Surfaced, 2 nm Submerged.
	16.00	GR 7924
	20.00	GR 7964

	11.04.43	Close to the Cape of Good Hope
	00.00	GR 7996	Course: 133°, turns for 7 knots.
		SSW 1, Sea 1, few clouds, Vis. good, long Swell	The previous good weather allows a reduction in speed for the last days.
	04.00	GZ 3215
	08.00	GZ 3253

	Sun and Moon Data 08.04.43
	Sun and Moon Data 09.04.43
	Sun and Moon Data 10.04.43
	Sun and Moon Data 11.04.43

- 24 -



	continued
	11.04.43	Near the Cape of Good Hope
	12.00	GZ 3345
		Lat. - 38° 35'S
		Long. - 16° 24'E	Day's run: 144 nm Surfaced.
	16.00	GZ 3384
	20.00	GZ 3634

	12.04.43	South of the Cape of Good Hope
	00.00	JJ 1441	Course: 133°, turns for 7 knots.
		SW 1, Sea 0, medium Swell, few clouds
	04.00	JJ 1481
	08.00	JJ 1731	Course: 90°.
	08.48 - 09.13		Exercise dive.
	12.00	JJ 1819
		Lat. - 40° 09'S
		Long. - 18° 10'E	Day's run: 141 nm Surfaced, 1 nm Submerged.
	16.00	JJ 1919
	20.00	JJ 1919

	13.04.43	South of the Cape of Good Hope
	00.00	JJ 1938
		S 1, Sea 1, few clouds
	04.00	JJ 2727
		Fog lightening
	05.00	Fog, mist
	10.53 - 11.10		Exercise dive.
	12.00	JJ 2576
		Lat. - 39° 47'S
		Long. - 22° 30'E	Day's run: 186 nm Surfaced, 1 nm Submerged.
	16.00	JJ 2593
	20.00	JJ 2684

	14.04.43	Southeast of Cape of Good Hope
	00.00	JJ 2695	Course: 90°, turns for 8 knots.
		S 5, Sea 4, overcast
	04.00	JK 2247

	Sun and Moon Data 11.04.43
	Sun and Moon Data 12.04.43
	Sun and Moon Data 13.04.43
	Sun and Moon Data 14.04.43

- 25 -



	continued
	14.04.43	Southeast of the Cape of Good Hope
	08.00	JK 2237
	12.00	JK 2194	Course: 65°.
		Lat. - 39° 52'S
		Long. - 23° 52'E	Day's run: 156 nm Surfaced.
	16.00	JK 2347
	18.00	NE 2-3, high long Swell
	20.00	JK 2354
		NE 2-3

	15.04.43	Southeast of the Cape of Good Hope
	00.00	JK 2337
		NE 0-1, Sea 0-1, lightly cloudy
	04.00	JK 5111
	06.49 - 07.20		Test dive.
	08.00	KZ 78x8
	12.00	KZ 7854
		Lat. - 38° 39'S
		Long. - 28° 12.5'E	Day's run: 145 nm Surfaced, 2 nm Submerged.
	16.00	KZ 7838
	20.00	KZ 7915

	16.04.43	Southeast of the Cape of Good Hope
	00.00	KZ 7934
		N 1, Sea 0-1, few clouds, Vis. good
	04.00	KZ 8478
	08.00	KZ 8485
	09.35 - 09.59		Exercise dive.
	12.00	KZ 8546
		Lat. - 37° 44'S
		Long. - 31° 37'E	Day's run: 167 nm Surfaced, 1 nm Submerged.
	16.00	KZ 8562
	20.00	KZ 8474

	17.04.43	Southeast of the Cape of Good Hope
	00.00	KZ 8355	Course: 55°, turns for 8 knots.
		S 3-4, Sea 3, overcast, rain, Vis. 3 nm

	Sun and Moon Data 14.04.43
	Sun and Moon Data 15.04.43
	Sun and Moon Data 16.04.43
	Sun and Moon Data 17.04.43

- 26 -



	continued
	17.04.43	Southeast of the Cape of Good Hope
	04.00	KZ 8359
	06.20 - 07.07		Exercise dive.
	08.00	KZ 9115
	12.00	KZ 9136
		Lat. - 36° 36'S
		Long. - 34° 55'E	Day's run: 182.5 nm Surfaced, 1.5 nm Submerged.
			Incoming Radio Message 1425/17/420.
			Boat received instructions concerning meeting 23 April 1943 in naval square JA 2432. Alternate square 28 April 06.00 naval square KC 9694. After execution free to maneuver in KP and KQ lower third and KZ and JA upper third, focal point off KP 84, because east-west traffic is suspected at the level of this harbor.
	16.00	KZ 6978
	20.00	KZ 6998

	18.04.43	Indian Ocean east of Port Elizabeth	Course: 55°, turns for 8 knots.
	00.00	KZ 6981
		NE 4, Sea 3, overcast, Vis. good
	01.45		Shadow in sight bearing 323°T, 3-4 nm away, bright moonshine, 2 days before the full moon.
		I intend a surface attack in the half hour between moonset and the beginning of twilight, because after maneuvering ahead for a submerged attack it will be too dark and still too bright for a surface attack. Maneuvered ahead and matched speed, after moonset attacked.
	03.36	KZ 6568	03.36 hours 2 associated single shots, 1st hit at the forward edge of the bridge, 2nd hit after edge of the bridge. Range 900 meters. Tanker stopped and showed no indication of sinking. SOS was given 3 times, radio call-sign was distorted by own radio transmissions. Coup de grâce 04.10 hours missed, 2nd coup de grâce 04.16 hit forward. Tanker burned and sank quickly. First coup de grâce missed because target speed 0 was set, however the tanker reversing was not noticed immediately.

	Sun and Moon Data 17.04.43
	Sun and Moon Data 18.04.43

- 27 -



	continued
	18.04.43	Indian Ocean, east of Port Elizabeth
		Indian Ocean, east of Port Elizabeth	At dawn 4 drifting boats were sighted, 3 of which capsized with Malayans [illegible word] and the only floating boat (but overloaded) Englishmen. The weather, current and the condition of the boats make a landing any of the shipwrecked almost impossible.
			It turns out to be the tanker CORBIS 8132 GRT with heating oil for Capetown. Course 200°, speed 9 knots.
			25 minutes after "CORBIS" sank at a distance of 5 nm from the sinking location a heavy concussion in the boat, probably the tanker was first crushed at depth at this time.
		The position and the course of the tanker lead to the suspicion that the routes are widely scattered and cannot be assumed to be only under the coast despite the favorable current conditions.
	04.00	KZ 6xxx
	08.00	KZ 6644
	12.00	KZ 6621
		Lat. - 34° 40'S
		Long. - 36° 45.5'E	Day's run: 106 nm Surfaced, 27.5 nm Submerged.
	16.00	KZ 6395
	17.25 - 17.46		Exercise dive.
	20.00	JA 41x8

	19.04.43	Indian Ocean	Course: 55°, turns for 8 knots.
	00.00	JA 4128
		SEbyE 3, Sea 2, overcast, rain, Vis. medium
	04.00	JA 4131
	08.00	JA 1875	Course: 0°. Came to course 0° because there is still enough leeway to the meeting point, to cross the entry and exit courses to Durban as far as possible, and not reveal the meeting place by arriving there early.
	12.00	JA 1738
		Lat. - 33° 05'S
		Long. - 38° 24'E	Day's run: 150 nm Surfaced, 1 nm Submerged.
	16.00	JA 1498
	20.00	JA 1466

	20.04.43	Indian Ocean	Course: 5°, turns for 8 knots.
	00.00	JA 1199
		SSE 1-2, Sea 1, few clouds, Vis. good

	Sun and Moon Data 18.04.43
	Sun and Moon Data 19.04.43
	Sun and Moon Data 20.04.43

- 28 -



	continued
	20.04.43	Indian Ocean
	04.00	JA 1138
	08.00	EQ 7769
	10.48	Sea 0, high medium-long Swell	Mastheads abeam to starboard bearing 100°T, bow right 30°, steamer comes out very quickly, so that the order to crash dive had to be given immediately because going to high speed with the unavoidable heavy smoke development would betray the boat immediately. After 23 minutes the ship came in sight in the periscope. Initiated bow approach. Mirror flat sea, high medium-long swell, course against the swell. Boat broached three times at a distance between 1000 meters and 600 meters with the entire conning tower out and was seen. Thereafter the steamer ran on a ramming course. I attempted to get past ahead for a stern shot, the boat must have been picked up by the wake because the steamer turned after and remained in target angle 0°, boat could only be steered in depth at HF or GF. To avoid being rammed went deep. The boat was at depth 30 meters when it was overrun by the steamer. Maneuvered ahead in the lee (due to own strong smoke development) after surfacing with periscope all around sweep. Steamer zigzagged. After 2-hour pursuit range had increased about 1/2 nm. In addition, an engine failed so I broke off pursuit. Modern fast runner with passenger superstructure, well camouflaged, was a completely different color on both sides so that submerged for a time there was the impression that we were dealing with 2 steamers. The behavior of the steamer must be considered very clever. I suspect that he often sighted me during the maneuver ahead due to own strong smoke development because he repeatedly put me astern.
	10.50	Crash dive.
	12.00	EQ 7764
		Lat. - 30° 28'S
		Long. - 38° 25'E	Day's run: 158 nm Surfaced, 10 nm Submerged.
	12.38		Surfaced.
	16.00	KQ 7765
	17.40 - 18.12		Exercise dive.
	18.30		Outgoing Radio Message: 1724/20/458.
	20.00	KQ 7818	Tanker "CORBIS" for Cape Town course 200° sunk naval square KZ 6568. 20 April steamer KQ 7764 course 280°, before attack broached due to swells. Maneuver ahead broken off because the steamer was faster. Boat smokes like an old coal steamer.

	21.04.43	Indian Ocean
	00.00	KQ 7589	Course: 45°, turns for 8 knots.
		Wind 0, medium Swell, few clouds, Vis. good

	Sun and Moon Data 20.04.43
	Sun and Moon Data 21.04.43

- 29 -



	continued
	21.04.43	Indian Ocean
	04.00	KQ 7563
	06.00 - 06.42		Exercise dive.
	08.00	KQ 7615
	12.00	KQ 7373
		Lat. - 28° 55.5'S
		Long. - 40° 22.0'E	Day's run: 176.2 nm Surfaced, 3 nm Submerged.
			Course: 163°.
	16.00	KQ 7388
	20.00	KQ 7626

	22.04.43	Indian Ocean	Course: 163°, turns for 5 knots.
	00.00	KQ 7653
		S 1, Sea 0, light overcast, Vis. good
	04.00	KQ 7667
	06.00 - 06.30		Exercise dive.
	08.00	KQ 7694	Course: 148°.
	12.00	KQ 7963
		Lat. - 30° 30'S
		Long. - 41° 00'E	Day's run: 99 nm Surfaced, 1 nm Submerged.
	16.00	KQ 8772
	20.00	KQ 2127

	23.04.43	Indian Ocean	Course 153°, turns for 10 knots.
	00.00	JA 2183
		SSE 4, Sea 4, medium Swell, overcast, Vis. good
	02.40	JA 2432	Japanese U-boat in sight bearing 169°T, bow right 110°, 1000 meters. Boat was out of sight again in a short time. Under the assumption that the boat dived, I also submerged until the beginning of lightness, then initiate Recognition Signals.
	03.00 - 05.20		Dived.
	04.00	JA 2432
	06.00		Sent bearing signals in accordance with orders, Japanese U-boat came in sight after the first bearing signal exchange,

	Sun and Moon Data 21.04.43
	Sun and Moon Data 22.04.43
	Sun and Moon Data 23.04.43

- 30 -



	continued
	23.04.43	Indian Ocean, south of Madagascar	because both boats steered converging courses.
	06.23	JA 2432	Exchanged Recognition Signals. Transfer is impossible at the moment due to the weather conditions, therefore I will proceed in the wake of the Japanese boat, course 70°, 8 knots and initially run with so that Herrn Bose will not lose any time. Using the International Morse Signal Book we soon agree on a satisfactory procedure deviating from the usual one. Since our ability to express ourselves is cumbersome, I intend to send over a signalman as soon as possible.
	08.00	JA 2195
	12.00	JA 2254
		Lat. - 31° 30'S
		Long. - 42° 38'E	Day's run: 155.5 nm Surfaced, 4.8 nm Submerged.
	16.00	JA 2263
	20.00	JA 2324

	24.04.43	Indian Ocean, south of Madagascar	Course: 70°, turns for 8-9 knots.
	00.00	KQ 8998
		SE 3-4, Sea 3, medium Swell, overcast, Vis. good
	04.00	KQ 9781
	08.00	KQ 9765
	11.40		Signalman sent aboard the Japanese boat. First Watch Officer set to the Japanese boat by rubber boat for welcome and discussions. Understanding is difficult, because only broken German or English was spoken.
		We agreed that we should first run together in the hope of better weather, since very good weather is required for the transfer with available means - 4 small light inflatable boats with net bottoms. Delivery of a torpedo canister - contents gun barrels and ammunition - as well as transfer of three torpedoes endangers the outer hull plating in rough seas; likewise the boxes with documents and construction drawings are endangered by sea water, especially since the packaging in no way takes into account a transfer at sea.

	Sun and Moon Data 23.04.43
	Sun and Moon Data 24.04.43

- 31 -



	continued
	24.04.43	Indian Ocean, south of Madagascar
	12.00	KQ 9766
		Lat. - 30° 37'S
		Long. - 45° 47'E	Day's run: 190 nm Surfaced.
	16.00	KQ 9854
	18.10		Outgoing Radio Message: 1737/24/376/492.
			Met on 23 April 06.20 hours. Exchange not possible up to now due to weather. No improvement for now, am running with. From 30 April return transit is only possible with supply. Transfer by on board means only in good weather, sensitive items, heavy weights, fuel tank endangerment. Plant allows running without stopping if necessary. KQ 99.
	20.00	KQ 9914

	25.04.43	Indian Ocean, south of Madagascar	Course: 70°, turns for 8-9 knots.
	00.00	KQ 9923	A quite clear SE monsoon has come up so there is not much hope for calmer weather.
		SSE 3-4, Sea 3, medium Swell, overcast, Vis. good
	04.00	KR 7471
	08.00	KR 7456
	12.00	KR 7431
		Lat. - 29° 20.5'S
		Long. - 49° 05.5'E	Day's run: 194 nm Surfaced.
	13.00		The First Watch Officer was picked up again to discuss the Japanese boat because there is too much misunderstanding message exchange with with flags.
		Results: After this discussion the following options follow from the previously established points.
		1.) If the boat receives supply on the way home, then we can run with up to 5 May.
		2.) The boat can receive fuel from the Japanese boat if we keep running together.
		3.) From 14 May the boats must continue on to Japan because the Japanese U-boat cannot give enough fuel for return transit to Bordeaux.
		4.) The aim is transfer at the first acceptable weather position so that a.) Herr Bose gets to Japan quickly - Japanese boat plans to run at 18 knots. b.) with this our boat still has time to operate off Durban.
		5.) On sighting the enemy we attack up to 70°E, from 70°E the Japanese U-boat attacks. The meeting point is the location at the moment of sighting of the enemy. After 10 hours on to full hours radio bearing signals, send and receive according to program from the first meeting 23 April 1943.

	Sun and Moon Data 24.04.43
	Sun and Moon Data 25.04.43

- 32 -



	continued
	25.04.43	Indian Ocean, south of Madagascar
	13.22 - 13.39		Exercise dive.
	16.00	KR 7277	Course: 55°, turns for 8-9 knots.
	20.00	KR 7254
	21.10		Outgoing Radio Message 2047/25/62/499.
			After consultation suggest running with until good weather and if necessary have been offered fuel oil take over from the other boat.
		I decided to this version of the Radio Message, as it provides the most time freedom of action in terms of time.
		Fire hoses were prepared for the takeover. Pipe pieces served as connecting sleeves, double gripping line served as the mainstay with the hoses connected by strips made from mattress covers; buoyed by empty un-soldered food preservation tins. Couplings for the Japanese boat are turned [on a lathe].
	23.45		Incoming Radio Message: 1500/27/410.
			To ensure the ordered transfer as far as possible, proceed according to the situation. Requested supply anticipated about naval square DG provided, but possibly as soon as the first half of May. Supply in the local area.
			The time group of this Radio Message from 24 April was 1737/24/376/492.

	26.04.43	Indian Ocean	Course: 55°, turns for 8-9 knots.
	00.00	KR 7235
		SE 4, Sea 3-4, Swell, lit overcast, Vis. good
	04.00	KR 4987
	08.00	KR 4968
	12.00	KR 4933
		Lat. - 27° 30.5'S
		Long. - 51° 46.0'E	Day's run: 172 nm Surfaced, 1 nm Submerged.
	16.00	KR 5481
	20.00	KR 5429	A small farewell party for Herrn Bose and Herrn Hasen. As farewell gift they were each be presented with a large U-boat badge made by soldiers of the crew in Aluminum signifying the admission of both guests into comradeship of the U-Boot men. For Herrn Bose I added picture of the boat with

	Sun and Moon Data 25.04.43
	Sun and Moon Data 26.04.43

- 33 -



	continued
	26.04.43	Indian Ocean	the dedication: I wish and hope very much that we have brought you to a beautiful and great future for your people.
			Herr Bose thanked us in warm words and wrote in a similar sense in the boat's Guest Book.

	27.04.43	Indian Ocean, southeast of Madagascar	Course: 55°, turns for 8-9 knots.
	00.00	KR 5287
		SE 3, Sea 2-3, medium Swell, overcast, Vis. good
	01.53 03.20		It had grown calmer. Signal lamp exchange, with preparations to begin transfer. The Japanese boat lay stopped athwart the seas and drifted very much faster than we. After a few attempts, I lay in the only possible position with the stern into the wind - stern in the direction of the Japanese U-boat. The entire transfer was performed in this position. Transfer lasted until 14.10 hours and was successful due to the very good work of both crews. All items were transferred safely, albeit with some very considerable difficulties, the extraction of the torpedo canister and transfer of the torpedoes were especially difficult, since the transfer had to be carried out without the rubber boat - which was far too small.
	09.00	Freshening to SE 4	Almost all the lines of the take over harnesses were broken by strain; with the first torpedo the tail line broke and had to be re-attached to the now vertical torpedo with a lot of patience. If the boat were not pressure-proof at the level of the takeover harness due to negative buoyancy tank plating, the transfer of the torpedoes and delivery of the canister would not have been possible. The large dingy of the Japanese U-boat had been smashed on the transit by the seas.

	Sun and Moon Data 26.04.43
	Sun and Moon Data 27.04.43

- 34 -



	continued
	27.04.43	Indian Ocean	A total of 146 large cases, gold bars and three torpedoes were taken over, a total of about 11 tons. Due to the cargo on the outbound and return transits the crew lived virtually the entire trip on all fours.
			Unfortunately along with the cargo quantities of cockroaches and other beetles as well as a type of quite small mites were taken over.
		Unfortunately, for reasons of space and weight, I had to refuse several hundred pounds of canned pineapple, coffee etc., which were a gift to the crew. After the transfer was completed the First Watch Officer was sent over to say thanks and farewell. As a thank you to the Kommandant of the Japanese U-boat I sent a U-boat badge made of Aluminum with the following inscription: May the joint conduct home of the insurgent freedom fighter by a German and a Japanese U-boat finally liberate the Indian people from English foreign rule.
		From the Japanese U-boat the following letter arrives: To the German crew from the Japanese crew. Many greetings from Japanese crew. We are hopeful for your efforts for the formation of the new world order. And on parting we wish you a safe journey and a happy return home. Once more many greetings
		Herr Bose was sent over on the last boat, the crew sent off the Indian freedom fighter with 3 cheers.
	14.03		Last greeting exchange by International Signal Book: Thank you for your excellent support, wish you a pleasant journey, and good luck.
	04.00	KR 5276
	08.00	KR 5276
	12.00	KR 5276

- 35 -



	continued
	27.04.43	Indian Ocean
	12.00	KR 5276
		Lat. - 26° 19'S
		Long. - 53° 17.5'E	Day's run: 123 nm Surfaced.
	16.00	KR 5294
	18.15		Ending of work on the over deck.
	19.00		Outgoing Radio Message: 15.00/27/410.
			Report seamanship feat 27 April naval square KR 5276. 210 cbm. 1000 nm at turns for 8 knots consumed 21.8 cbm = 30% more than IX D 2.

	28.04.43	Indian Ocean	Course: 200°, turns for 5 knots.
	00.00	KR 5169
		SE 3, Sea 2-3, overcast, rain, Vis. medium
	04.00	KR 5438
	08.00	KR 5444
		High Swell
	10.48 - 11.28		[Dive for training]
	12.00	KR 5722
		Lat. - 27° 23'S
		Long. - 52° 17.5'E	Day's run: 122.5 nm Surfaced, 1 nm Submerged.
	16.00	KR 5742	Turns for 8 knots.
	20.00	KR 4996

	29.04.43	Indian Ocean
	00.00	KR 7322	Course: 220°, turns for 8 knots.
		SE 2, Sea 1, few clouds, Vis. good
	04.00	KR 7349
	06.15 - 06.45		Dived for training.
	08.00	KR 7377
	12.00	KR 7538
		Lat. - 29° 30'S
		Long. - 50° 15'E	Day's run: 164 nm Surfaced, 1 nm Submerged.
	16.00	KR 7583
	20.00	KR 7815
	20.30	Toast on the occasion of the birthday of the Emperor of Japan. Comrades: We have the joy and honor on today's date, the birthday of the "Tenno Heika" [Ten Thousand Years - The Japanese Emperor], of having two Japanese comrades in arms in our midst. We salute the "Tenno Heika" in homage and wish him personal well-being and health as well as the victorious fulfillment of the common goal only to bring about a new

	Sun and Moon Data 27.04.43
	Sun and Moon Data 28.04.43
	Sun and Moon Data 29.04.43

- 36 -



	continued
	29.04.43	Indian Ocean	and just world heritage. We give greetings and congratulations in the old soldier's form in a triple cheer from the "Tenno Heika"expression.

	30.04.43	Indian Ocean
	00.00	KR 7841
		EbyN 3-4, Sea 2-3, overcast, Vis. good
	04.00	ER 7782
	06.15 - 06.45		Exercise dive.
	08.00	JB 1113
	12.00	JB 1149
		Lat. - 31° 37.5'S
		Long. - 48° 32.0'E	Day's run: 161 nm Surfaced, 1 nm Submerged.
	16.00	JB 1411
	20.00	JA 3661

	01.05.43	Indian Ocean	Course: 220°, turns for 8 knots.
	00.00	JB 3685
		ENE 1, Sea 0, partly overcast, Vis. good
	04.00	JB 3916
	06.08 - 06.39		Exercise dive.
	08.00	JA 6215
	12.00	JA 6215
		Lat. - 33° 43'S
		Long. - 46° 09'E	Day's run: 178 nm Surfaced, 1.5 nm Submerged.
	16.00	JA 3739
	17.15		Incoming Radio Message: 1652/1/442.
			Instructions to operate on traffic route KE 3460, KE 2330, KZ 3740, KY 6760 because here in the last weeks of April an Italian U-boat sank 4 steamers.
			A check of fuel and weight conditions of the boat shows: The boat can make the return transit with the available fuel. In terms of weight the boat has become so heavy that it is no longer possible to remain in the operational area, return transit must be started/continued.
			The boat will be at the supply place about on 10 June. From 1 June the regulating tank pumping will be acceptable,

	Sun and Moon Data 29.04.43
	Sun and Moon Data 30.04.43
	Sun and Moon Data 01.05.43

- 37 -



	continued
	01.05.43	Indian Ocean	reducing all fillings, if there is no shooting opportunity until then. So the boat will only have to take over fuel from the supplier in order to remain ready to dive with respect to weight.
	20.00	JA 3755
	20.35		Outgoing Radio Message: 1934/1/445.
			On return transit over ordered traffic route if there are no further shooting opportunities regulating [regulating tank pumping capability will be acceptable] from 1 June by adoption of all possibilities except for jettisoning ammunition. About 10 June naval square DG for supply. Position JA 38. Nothing seen since 20 April.
			After final trim test in the homeland U-boat Command requested that the boat be balanced since the boat was 7 tons too heavy and 120 meter-tons stern heavy, while the boat lay the dock for balancing and weight alleviation, Berlin decreed only to shift trim by 100 meter-tons bow heavy and to carry out no weight change. So the boat operated 7 tons too heavy, took on a payload of about 11 tons, so that the boat is now too heavy by 18 tons.

	02.05.43	Indian Ocean	Course: 275°, turns for approximately 8 knots.
	00.00	JA 3717
		SE 3, Sea 2, half overcast, Vis. good
	04.00	JA 2924
	06.20 - 06.45		Exercise dive.
			Boat experienced a strong shudder after expressing [the negative buoyancy tanks] shortly before oscillating at depth 25 meters. The approval of the posts at the vents showed that all the vents worked properly, likewise the light signal system in the control room panel showed no malfunction. The shudder was like grounding on sandy soil. The Torp. Mech claims to have felt a strong impact on the fore deck and then heard a low-pitched sound on the side of the hull. The boat suffered no noticeable damage. I suspect that a vent had jammed and first sprung lose at depth 25 meters, especially since up to the shudder the boat was very light and afterwards immediately heavy. A second possibility consists of striking a drifting object. Charted depth is over 4000 meters. Sounder is out of service.

	Sun and Moon Data 01.05.43
	Sun and Moon Data 02.05.43

- 38 -



	continued
	02.05.43	Indian Ocean
	08.00	JA 2835
	12.00	JA 2834
		Lat. - 32° 59.4'S
		Long. - 43° 06.5'E	Day's run: 165 nm Surfaced, 2 nm Submerged.
	16.00	JA 2816
	20.00	JA 2735

	03.05.43	Indian Ocean	Course: 275°, turns for 8 knots.
			Transit on ordered traffic route.
			(in accordance with Radio Message 1652/1/442 of 1 May 1943)
	00.00	JA 2721
		W 2, Sea 1, few clouds, Vis. good
	04.00	JA 1932
	06.05 - 06.47		Exercise dive.
	08.00	JA 1688	Course: 270°.
		Overcast, rain
	12.00	JA 1914
		Lat. - 32° 58.6'S
		Long. - 39° 55.0'E	Day's run: 161 nm Surfaced, 1 nm Submerged.
	16.00	JA 1826
	20.00	JA 1815	With a more thorough check of fuel consumption and weight of the boat, a previously unimagined possibility arose to ease the weight of the boat in order to obtain sufficient regulating tank fillings and thus stay ready to dive. It was to take the transmission and lubricating oil from the internal tanks through the vents into the already carried pumped main ballast and reserve fuel oil tanks through a makeshift line with a hand pump. By this measure the boat can remain in the operations area until 10 May and remain ready to dive in terms of weight up to the supply square.

	Sun and Moon Data 02.05.43
	Sun and Moon Data 03.05.43

- 39 -




	04.05.43	Indian Ocean	Course: 270°, turns for 8 knots.
	00.00	JA 1734
		S 1, Sea 0-1, clear sky, Vis. good
	04.00	JA 1716
		Strong summer lightening
	06.25 - 06.51		Exercise dive.
	08.00	KZ 3935
	12.00	KZ 3926
		Lat. - 32° 58.2'S
		Long. - 36° 53'E	Day's run: 156.5 nm Surfaced, 1.5 nm Submerged.
	12.25		Course: 345°.
	16.00	KZ 3682
	20.00	KZ 3619

	05.05.43	Indian Ocean	Course: 345°, turns for 8 knots.
	00.00	KZ 3372
		NW 0-1, Sea 0, few clouds, Vis. good, summer lightening
	04.00	KZ 3317
	06.00		Course: 230°.
	06.08 - 06.27		Exercise dive.
	08.00	KZ 3232
		Lat. - 31° 29.8'S
		Long. - 35° 33'E	Day's run: 173.5 nm Surfaced, 0.5 nm Submerged.
	16.00	KZ 3278
	20.00	KZ 3438

	Sun and Moon Data 04.05.43
	Sun and Moon Data 05.05.43

- 40 -




	06.05.43	Indian Ocean, at the level of Durban
	00.00	KZ 3457
		W 2, Sea 0-1, overcast, rain, Vis. changing
	04.00	KZ 3477
	06.15 - 06.59		Exercise dive.
	08.00	KZ 2934
	12.00	KZ 2975
		Lat. - 33° 23'S
		Long. - 32° 43.5'E	Day's run: 182 nm Surfaced, 2 nm Submerged.
	16.00	KZ 2927	Course: 30°.
	20.00	KZ 2689

	07.05.43	Indian Ocean, at the level of Durban
	00.00	KZ 2668
		N 5-6, Sea 4-5, overcast, rain, Vis. medium
	04.00	KZ 3417
		Strong summer lightening
	06.25 - 06.53		Exercise dive.
	08.00	KZ 3176
	12.00	KZ 3125
		Lat. - 31° 11.6'S
		Long. - 34° 20.3'E	Day's run: 153 nm Surfaced, 1.5 nm Submerged.
	16.00	KP 9791	Course: 15°, turns for 8 knots.
		Because nothing was sighted for 3 days on the ordered traffic route with courses, that crossed all previously steered courses of sighted or sunk steamers, I suspect that inbound and outbound traffic to Durban has been shifted to the north because of the 5-6 sinkings. Therefore I intend to carry out a leg to the north from KP 97 to KP 91 to KP 59.
	20.00	KP 9735

	08.05.43	Indian Ocean
	00.00	KP 9493	Course 15°, turns for 8 knots.
		S 3, Sea 2-3, few clouds, Vis. good

	Sun and Moon Data 06.05.43
	Sun and Moon Data 07.05.43
	Sun and Moon Data 08.05.43

- 41 -



	continued
	08.05.43
	04.00	KP 9517
	06.05 - 06.43		Exercise dive.
	08.00	KP 9272	Course 330°.
	12.00	KP 9137
		Lat. - 28° 35.5'S	Day's run: 166 nm Surfaced, 1 nm Submerged. (13378.5)
		Long. - 34° 43.0'E	Course: 310°.
	13.54	KP 9123	2 high masts bearing 45°T, bow right 5°.
	13.57	Both masts in sight with crow's nests. 13.57 hours Crash dive. 14.20 hours one corvette and a modern destroyer in sight in the periscope, approaching the diving location at high speed. Ran off at high speed athwart the enemy course. 2-meter depth setting for the torpedoes is impossible due to Sea State and Swell. Went to depth A -10 meters to depth A +10 meters. Ships must suspect me, ran on listening courses. Asdic questionable, only brief sounds like falling pebbles was heard in the conning tower. Listening conditions seem very unfavorable, Volume decreased passing depth A -30 meters quickly from 5 at times to 0. 2-hour listening pursuit, no depth charges.
	16.58	Surfaced. I gave up going closer to the coast because the condition of the boat and low regulating tank fillings do not allow a long forced submergence. 3 exhaust gas valves and both propeller shaft bushings leak heavily. The assumption that the condition of the exhaust valves would be improved by 4-hourly grinding and the stern tubes by re-stuffing the packing was a fallacy, as this assumption applied only up to the daily exercise dive depth. It should be noted that since boat's commissioning at least 3 of 6 exhaust valves and both propeller shaft bushings always leaked heavily, the bushings were tightened just after the overhaul of the same before the start of the remote patrol by the Deutscheswerft A.G. The bushings of the stern tubes on this boat were shortened by Deschimag due to lack of space.
		The boat proceeded one hour 10 minutes at periscope depth and at depth A -40 meters to A +10 meters for 1 hours and 40 minutes. In this period the boat took on 6 tons of water. Accordingly, for listening pursuit the boat it was necessary to pump 3 cbm per hour from the regulating tanks and 900 liters trim water out of the trim tanks, unless the main bilge pump was turned on.
		Pump-able regulating tank filling when surfacing was still 3 cbm.

- 42 -



	continued
	08.05.43	Indian Ocean	Began return transit.
	20.00	KF 9162	Due to fuel situation and due to weight conditions, in order to remain ready to dive weight-wise up to the supply point.

	09.05.43	Indian Ocean
	00.00	KP 9161	Course: 160°, turns for 8 knots.
		NE 2, Sea 1, overcast, Vis. medium
	04.00	KP 9541	Course: 205°.
	06.30 - 07.03		Exercise dive.
	08.00	KP 9496
	12.00	KP 9841
		Lat. - 30° 26.6'S
		Long. - 35° 03'E	Day's run: 141.5 nm Surfaced, 10 nm Submerged.
	13.00	Thunderstorms, rain	Course 220°.
	16.00	KP 9794
	20.00	KZ 3125

	10.05.43	Indian Ocean	Course: 220°, turns for 7 knots.
	00.00	KZ 3145
		SbyW 3, Sea 2, few clouds, Vis. good
	04.00	KZ 3174
	06.14 - 06.40		Exercise dive.
	12.00	KZ 2628
		Lat. - 32° 06.5'S
		Long. - 33° 14.0'E	Day's run: 136 nm Surfaced, 1 nm Submerged.
	16.00	KZ 2645
	20.00	KZ 2594

	11.05.43	Indian Ocean, at the level of Durban	Course: 240°, turns for 7 knots.
	00.00	KZ 2587
		Wind 0, Sea 0, overcast, Vis. good
	04.00	KZ 2817
	06.18 - 06.40		Exercise dive.
	08.00	KZ 2756

	Sun and Moon Data 08.05.43
	Sun and Moon Data 09.05.43
	Sun and Moon Data 10.05.43
	Sun and Moon Data 11.05.43

- 43 -



	continued
	11.05.43	Indian Ocean
	12.00	KZ 2745
		Lat. - 33° 13.5'S
		Long. - 30° 24.5'E	Day's run: 158.5 nm Surfaced, 1 nm Submerged.
	16.00	KZ 1967
	20.00	KZ 1973

	12.05.43	Indian Ocean, at the level of Port Elizabeth	Course: 260°, turns for 8 knots.
	00.00	KZ 1897
	04.00	KZ 1871
	06.32 - 07.12		Dived for training.
	08.00	KZ 4135	Course 200°,
			Aircraft type Handley Page Hampdon bearing 320°T, astern to starboard covered by our own smoke cloud, approaching: range = 4000-5000 meters. Aircraft went on a parallel course and turned at range = 1500 meters athwart the boats course to attack. At range = 1000 meters opened fire, burst of fire well positioned at the target, hits observed on the cockpit.
	09.15	KZ 4155
		NE 7-8, Sea 7



			At range = 400 meters the aircraft was on the correct course for the wind. At this moment I gave the order to crash dive. Before I got below I realized from an altitude of 150 meters [the aircraft turned sharply] over the right wing, lost altitude very quickly, the altitude of the aircraft when getting below was at most 20 meters.
			I believe that the aircraft turned away due to the hits and did not complete its right turn before the wind (7-8), but impacted the water; there were no aircraft bombs.
	09.20		Crash dive.
	10.30		Surfaced.
	12.00	KZ 4188
		Lat. - 34° 30'S
		Long. - 27° 18'E	Day's run: 182 nm Surfaced, 4 nm Submerged.
	16.00	KZ 4452
	20.00	KZ 4488

	Sun and Moon Data 11.05.43
	Sun and Moon Data 12.05.43

- 44 -




	13.05.43	Indian Ocean	Course: 190°, turns for 8 knots.
	00.00	KZ 4752
		NE 7, Sea 6, overcast, rain, Vis, medium
	04.00	KZ 4782
	06.50 - 07.28		Exercise dive.
	08.00	KZ 7125
	12.00	KZ 7181
		Lat. - 37° 22'S
		Long. - 26° 50'E	Day's run: 174.5 nm Surfaced, 1.5 nm Submerged.
	16.00	KZ 7171
	20.00	KY 9394
	22.00		Outgoing Radio Message: 1834/13/2157/13/422.
			4-7 May ordered traffic route nothing. Legs to KP 59 nothing. 8 May KP 9123 a destroyer and a corvette, crow's nests on both masts. Course 220°. 12 May KZ 4155 Handley Page. Shoot down very likely, after defense while crash diving just 20 meters altitude. Coastal traffic located at Cape St. Lucia. First 22 June supply square because there is still a possibility of lightening the boat. KY 95.

	14.05.43	Indian Ocean, south of the Agulhas Bank	Course: 270°, turns for 8 knots.
	00.00	KY 9384
		NW 4, Sea 4, overcast, rain, Vis. medium
	04.00	KY 9374
	06.56 - 07.22		Exercise dive.
	08.00	KY 9294
	12.00	KY 9284
		Lat. - 37° 11'S
		Long. - 24° 40'E	Day's run: 118 nm Surfaced, 2 nm Submerged.
	16.00	KY 9277
	20.00	KY 9426

	15.05.43	Indian Ocean, south of the Agulhas Bank	Course: 250°, turns for 8 knots.
	00.00	KY 9419
		SW 3, Sea 2, half overcast, Vis. good
	04.00	KY 8665
	07.02 - 07.36		Exercise dive.
	08.00	KY 8658
	12.00	GR 9999
		Lat. - 38° 01'S
		Long. - 21° 58'E	Day's run: 136.5 nm Surfaced, 2 nm Submerged.

	Sun and Moon Data 13.05.43
	Sun and Moon Data 14.05.43
	Sun and Moon Data 15.05.43

- 45 -



	continued
	15.05.43	South Atlantic, south of the Agulhas Bank
	16.00	JJ 2122
	20.00	JJ 2115

	16.05.43	South Atlantic, south of the Agulhas Bank	Course: 250°, turns for 8 knots.
	00.00	JJ 1361
		SW 2, high Swell, overcast, Vis. good
	04.00	JJ 1354
	07.20 - 07.51		Exercise dive.
	08.00	JJ 1347
	12.00	JJ 1465
		Lat. - 39° 26'S
		Long. - 18° 20'E	Day's run: 191 nm Surfaced, 1 nm Submerged.
	16.00	JJ 1425	Course 330°, turns for 7 knots.
	20.00	JJ 1415

	17.05.43	South Atlantic southwest of Cape Town	Course: 300°, turns for 7 knots.
	00.00	GZ 3397
		SE 2, Sea 1, overcast, rain, Vis. medium
	04.00	GZ 3381
	07.24 - 07.43		Exercise dive.
	08.00	GZ 3344
	12.00	GZ 3256
		Lat. - 38° 33'S
		Long. - 15° 39.7'E	Day's run: 139.5 nm Surfaced, 1.5 nm Submerged.
	16.00	GZ 3219
		[U-180 had 6 fresh water cooled Daimler Benz diesels in three pairs]	Fresh coolant water loss has continually grown worse, the 3 engines had to be shut down temporarily. It turned out that No. 1 had seven No. 2 six, No. 3 five leaks in the cooling water jackets. Duration of repair (soldering) 2 1/2 days per engine. Since only one fresh water maker is operable - the other already failed on 23 March - as soon as there are leaks, it cannot meet the needs of the crew and the diesel so that the stocks must be drawn down.

	Sun and Moon Data 15.05.43
	Sun and Moon Data 16.05.43
	Sun and Moon Data 17.05.43

- 46 -



	continued
	17.05.43	South Atlantic southwest of Cape Town
		Therefore fresh water may be a question of life for this type. Detecting and finding the leaks with the current design of the diesels is difficult and time-consuming, constructive change is required in such a way that it is immediately apparent which cylinder is leaking.
	20.00	GZ 3132
	22.15		Outgoing Radio Message: 2135/17/468.
			Brine pump one failed on 23 March, replacement requested from the supplier, because for three weeks many cylinder cooling jackets leak. To find and solder there is significant loss of fresh water, as a result at the moment two engines out of service.
			- Musenberg -

	18.05.43	South Atlantic
	00.00	GR 7985
		SE 3, Sea 1-2, half overcast, Vis. good	Course: 300°, turns for 7 knots.
	04.00	GR 7948
	07.22 - 07.44		Exercise dive.
	08.00	GR 7861
	12.00	GR 7192
		Lat. - 36° 59.2'S
		Long. - 12° 18.0'E	Day's run: 182.5 nm Surfaced, 1.5 nm Submerged.
	16.00	GR 7455
	20.00	GR 7417

	19.05.43	South Atlantic
	00.00	GQ 9623	Course: 300°, turns for 7 knots.
		S 2, Sea 1, overcast, Vis. good
	04.00	GQ 9376
	08.00	GQ 9266
	08.28 - 0828		Exercise dive.
	12.00	GQ 9255
		Lat. - 31° 51.5'S
		Long. - 09° 23'E	Day's run: 156 nm Surfaced, 1 nm Submerged.

	Sun and Moon Data 17.05.43
	Sun and Moon Data 18.05.43
	Sun and Moon Data 19.05.43

- 47 -



	continued
	19.05.43	South Atlantic
	16.00	GQ 9215
	20.00	GQ 6795

	20.05.43	South Atlantic, west of Cape Town	Course: 315°, turns for 7 knots.
	00.00	GQ 6755
		SW 1, Sea 0, overcast, Vis. good
	04.00	GQ 6715
	08.00	GQ 5695
	08.15 - 08.34		Exercise dive.
	12.00	GQ 5659
		Lat. - 34° 06.4'S
		Long. - 07° 17.8'E	Day's run: 145.7 nm Surfaced, 1 nm Submerged.
	16.00	GQ 5624
	20.00	GQ 5374

	21.05.43	South Atlantic
	00.00	GQ 5264
		N 3, Sea 2, few clouds, Vis. good
	04.00	GQ 5225
	08.00	GQ 2878
	08.28 - 08.46		Exercise dive.
	12.00	GQ 2777
		Lat. - 32° 19.4'S
		Long. - 04° 59.9'E	Day's run: 157 nm Surfaced, 1 nm Submerged.
	16.00	GQ 2728
	20.00	GQ 2713

	22.05.43	South Atlantic, west of Cape Town	Course: 315°, turns for 7 knots.
	00.00	GQ 1669
		SbyW 1-2, Sea 0-1, few clouds, Vis. good
	04.00	GQ 1653
	08.00	GQ 1621
	08.37 - 09.10		Exercise dive.

	Sun and Moon Data 19.05.43
	Sun and Moon Data 20.05.43
	Sun and Moon Data 21.05.43
	Sun and Moon Data 22.05.43

- 48 -



	continued
	22.05.43	South Atlantic, west of Cape Town
	12.00	GQ 1268
		Lat. - 30° 32'S
		Long. - 02° 49.9'E	Day's run: 157.5 nm Surfaced, 1 nm Submerged.
	16.00	GQ 1129
	20.00	GG 9787

	23.05.43		Course: 315°, turns for 7 knots.
	00.00	GG 8569
		SW 1, Sea 0, half overcast, Vis. good
	04.00	GG 8529
	08.00	GG 8679
	08.54 - 09.20		Exercise dive.
	12.00	GG 8565
		Lat. - 28° 40'S
		Long. - 00° 38.4'E	Day's run: 155.5 nm Surfaced, 1 nm Submerged.
	16.00	GG 8528
	20.00	GG 8512

	24.05.43	South Atlantic
	00.00	GG 8192
		SbyE 4, Sea 3, overcast, Vis. good
	04.00	GG 8152
	08.00	GG 8115
	08.30 - 09.00		Exercise dive.
	12.00	GG 4994
		Lat. - 27° 08.5'S
		Long. - 1° 15'E [typo W]	Day's run: 135 nm Surfaced, 1.5 nm Submerged.
	16.00	GG 4954
	20.00	GG 4917

	25.05.43	South Atlantic
	00.00	GG 4597
		SbyW 4, Sea 3-4, overcast, Vis. medium
	04.00	GG 4557
	08.00	GG 4617

	Sun and Moon Data 22.05.43
	Sun and Moon Data 23.05.43
	Sun and Moon Data 24.05.43
	Sun and Moon Data 25.05.43

- 49 -



	continued
	25.05.43	South Atlantic
	08.15 - 09.10		Exercise dive.
	12.00	GG 4423
		Lat. - 25° 30.6'S
		Long. - 3° 11.6'W	Day's run: 145 nm Surfaced, 1 nm Submerged.
	16.00	GG 4172
	20.00	GF 6362

	26.05.43	South Atlantic	Course: 315°, turns for 7 knots.
	00.00	GF 6322
		SE 2, Sea 1-2, overcast, Vis. medium
	04.00	GF 3972
	08.00	GF 3862
	08.56 - 09.18		Exercise dive.
	12.00	GF 3812
		Lat. - 23° 32'S
		Long. - 05° 19'W	Day's run: 158 nm Surfaced, 1 nm Submerged.
	16.00	GF 3498
	20.00	GF 3455

	27.05.43	South Atlantic, south of St. Helena
	00.00	GF 3415
		E 2, Sea 1, overcast, Vis. medium
	04.00	GF 2395
	08.00	GF 2358
	09.02 - 09.51		Exercise dive.
	12.00	GF 2239
		Lat. - 22° 05.5'S
		Long. - 07° 18'W	Day's run: 144.4 nm Surfaced, 2 nm Submerged.
	16.00	FU 7897
	17.15 - 17.54		Crash dive for training for aircraft to depth A +20 meters.
	20.00	FU 7857

	Sun and Moon Data 25.05.43
	Sun and Moon Data 26.05.43
	Sun and Moon Data 27.05.43

- 50 -




	28.05.43	South Atlantic	Course: 330°, turns for 7 knots.
	00.00	FU 7815
		E 1, Sea 0, light overcast, Vis good
	04.00	FU 7496
	08.00	FU 7461
	08.50 - 09.35		Exercise dive.
	10.39 - 10.55		Crash dive for aircraft for training to depth A +20 meters.
	12.00	FU 7413
		Lat. - 20° 09.5'S
		Long. - 08° 50.5'W	Day's run: 141.5 nm Surfaced, 4.5 nm Submerged.
	16.00	FU 7147
	16.42 - 16.58		Crash dive for training for aircraft to depth A +20 meters.
	17.08 - 17.20		"
	20.00	FT 9338

	29.05.43	South Atlantic	Course: 300°, turns for 7 knots.
	00.00	FT 6985
		E 2 Sea 1, light overcast, Vis. good
	04.00	FT 6946
	08.00	FT 6911
	08.46 - 09.20		Exercise dive.
	12.00	FT 6591
		Lat. - 18° 00.0'S
		Long. - 10° 17.6'W	Day's run: 152 nm Surfaced, 3 nm Submerged.
	15.10 - 16.00		Crash dive for training for aircraft to depth A +20 meters 2 times.
	16.00	FT 6557
	20.00	FT 6278

	30.05.43	South Atlantic, west of St. Helena
	00.00	FT 6166
		SE 3, Sea 2, overcast, Vis. medium
	04.00	FT 6131

	Sun and Moon Data 28.05.43
	Sun and Moon Data 29.05.43
	Sun and Moon Data 30.05.43

- 51 -



	continued
	30.05.43	South Atlantic
	08.00	FT 3782
	08.23 - 08.50		Exercise dive.
	12.00	FT 3741
		Lat. - 15° 56.2'S
		Long. - 11° 44.0'W	Day's run: 146 nm Surfaced, 4 nm Submerged.
	16.00	FT 2698
	16.39 - 17.35		2 times crash dive for training for aircraft to depth A +20 meters.
	20.00	FT 2659

	31.05.43	South Atlantic	Course: 330°, turns for 7 knots.
	00.00	FT 2624
		SE 3, Sea 2, overcast, Vis. good
	04.00	FT 2375
	08.00	FT 2263
	08.37 - 08.37		Exercise dive.
	10.23 - 10.56		Crash dive for training to depth A +20 meters.
	12.00	FT 2222
		Lat. - 13° 52.5'S
		Long. - 13° 7.2'W	Day's run: 144 nm Surfaced, 4 nm Submerged.
	16.00	FM 8873
	20.00	FM 8817
		The crash dive exercises to depth A +20 meters have shown: the boat goes to the intended depth only with forward diving plane hard [down], aft diving plane to 20° [up]. At depth A +10 meters aft diving plane to neutral, then oscillate the boat at depth A +20. At any lower diving plane position, the boat oscillates too early (propeller wake and high stability) and then can no longer be caught bow down even with diving planes subsequently placed hard. In the process greatest bow down 23°, flood center after 10 seconds flood aft after 22-23 seconds, express at depth 30 meters; stern is then below depth A meters after 110 seconds and below the water surface after 50 seconds. At higher speeds must flood aft quicker to avoid too large a bow down angle. The above attempts were carried out at transit speed - turns for 7 knots.

	Sun and Moon Data 30.05.43
	Sun and Moon Data 31.05.43

- 52 -



	continued
	31.05.43	South Atlantic	It is a fallacy to assume that the boat would be invisible to aircraft on leaving the surface because the white bubbles after expressing the negative buoyancy tanks is easy to see directly from the aircraft, these bubbles first appear [at the surface] after 120 seconds - when expressing at depth 30 meters expression is finished at depth A or A +10 meters - and precisely indicates the diving location again to the aircraft. Therefore it would be very desirable to avoid the air bubble when expressing by means of a corresponding technical modification (Japanese U-boats have just such equipment).

	01.06.43	South Atlantic, south of Ascension
	00.00	FM 8498	Course: 330°, turns for 7 knots.
		SE 3, overcast, Sea 3, Vis. medium
	04.00	FM 8456
	08.00	FM 8424	At the level of Ascension already a boat was attacked by aircraft, air reconnaissance from Ascension must be expected, therefore from 08.00 hours MG and Fu.M.B. watch was set, turns for 9 knots.
	08.31 - 09.21		Exercise dive.
	11.52	FM 7393	Crash dive for aircraft, course 230°, bearing 320°T, 2-engined, very high.
	12.00	FM 8174
		Lat. - 11° 47'S
		Long. - 14° 29'W	Day's run: 148 nm Surfaced, 1.4 nm Submerged.
	13.30		Surfaced, course 310°, proceeding submerged had shown again that the boat takes on 3 tons of water, that means with the current filling of the aft trim tank is empty after 1 1/4 hours. At the moment there is no possibility to improve the trim, the 2 tons of gold on board is already forward.



	16.00	FM 7367

	Sun and Moon Data 31.05.43
	Sun and Moon Data 01.06.43

- 53 -



	continued
	01.06.43	South Atlantic, south of Ascension
	20.00	FM 7316

	02.06.43	South Atlantic	Course: 310°, turns for 9 knots.
		FM 4899
		SE 4, Sea 3, overcast, rain, Vis. medium
	04.00	FM 4855
	08.00	FM 4814
	08.30 - 09.14		Exercise dive.
	12.00	FM 4489
		Lat. - 10° 09.9'S
		Long. - 16° 37.0'W	Day's run: 166 nm Surfaced, 8 nm Submerged.
	16.00	FM 4473
	20.00	FL 6638

	03.06.43	South Atlantic
	00.00	FL 6387
		SE 3, Sea 3, few clouds, Vis. good
	04.00	FL 6266
	08.00	FL 6225
	08.31 - 08.53		Exercise dive.
	10.14	FL 6212	Crash dive for aircraft. Aircraft course 150°T, 260°R, very high.
	10.59		Surfaced.
	12.00	FL 3793
		Lat. - 8° 11.5'S
		Long. - 19° 02'W	Day's run: 182.5 nm Surfaced, 4 nm Submerged.
	14.50	FL 3756	Crash dive for aircraft. Aircraft course 110°T, 245°R, 8000 meters, very high.2-engined.
	15.46		Surfaced.
	16.00	FL 3753
	17.07	FL 3754	Smoke cloud in sight, bearing 215°T. Single smokestack steamer comes in sight, shift shows enemy speed 9 knots, maneuvered ahead at 13 knots, higher speed impossible due to own smoke. Radio Message questioning attack permission because the boat is in an area where [I am] not free to attack.
	20.00	FL 3734

	Sun and Moon Data 01.06.43
	Sun and Moon Data 02.06.43
	Sun and Moon Data 03.06.43

- 54 -



	continued
	03.06.43	South Atlantic	The message was sent again at 19.00 hours on Norddeich because at first we were not heard. Answered at 21.15 hours: Shoot if not a neutral.
			Since it is daytime but too late for a twilight attack, attempted a night attack. The steamer was nearly lost in the twilight because he is positioned before a very unfavorable horizon and at the appropriate time made an evening zig zag of 50° to port.
	23.40	FL 3816	3-fan sank steamer "BORIS" Greek from Santos to Freetown with wood, minerals, piece goods and cotton. Steamer course 90°, evening zigzag to 40°. 2 coup de grâce because the steamer did not sink, floated on its wood cargo.

	04.06.43	South Atlantic
	00.00	FL 3812	Course: 330°, turns for 14 knots to move off.
		SE 2, Sea 1, few clouds, Vis. good
	04.00	FL 3437
	08.00	FL 3142	Turns for 9 knots.
	08.30 - 08.51		Exercise dive.
	12.00	FD 9998
		Lat. - 5° 37.8'S
		Long. - 20° 05.7'W	Day's run: 218 nm Surfaced, 4.5 nm Submerged.
	16.00	FD 9952
	20.00	FD 9675
	21.03		Outgoing Radio Message: 2025/4/464.
			Crash dive for aircraft: 1 June FM 73, course 230°, 11.50 hours, 3 June FL 62 course 150°, 1015 hours and FL 37 course 110°, 14.50 hours, apparently regular reconnaissance from Ascension for east-west traffic, no detections, aircraft very high. 3 June FL 3816 23.40 hours sank "BORIS" from Santos to Freetown with wood, minerals and piece goods course 90°, evening zigzag to 40°.

	05.06.43	South Atlantic
	00.00	FD 9566
		SE 2, Sea 1, few clouds, Vis. good
	04.00	FD 9531
	08.00	FD 9258
	12.00	FD 9139
		Lat. - 3° 13.6'S
		Long. - 21° 42.7'W	Day's run: 175 nm Surfaced

	Sun and Moon Data 03.06.43
	Sun and Moon Data 04.06.43
	Sun and Moon Data 05.06.43

- 55 -



	continued
	05.06.43	South Atlantic
	16.00	FD 6794
	20.00	FD 6755

	06.06.43	South Atlantic, Equator
	00.00	FD 6713
		SE 2, Sea 1, lightly cloudy, Vis. good
	04.00	FD 6471
	08.00	FD 5638
	12.00	FD 5378
		Lat. - 1° 11.8'S
		Long. - 23° 20.9'W	Day's run: 158 nm Surfaced
	16.00	FD 5269
	20.00	FD 5234

	07.06.43	South Atlantic, Equator	Course: 330°, turns for 7 knots.
	00.00	FD 2885
		SE 2, Sea 1, clear sky, Vis. good
	01.25		Passed the Equator in a northerly direction at longitude 24° 01.5'W.
	04.00	FD 2843
	08.00	FD 2811
	08.24 - 08.55		Exercise dive.
	12.00	FD 2455
		Lat. - 1° 00.8'N
		Long. - 24° 49.5'W	Day's run: 158 nm Surfaced, 2 nm Submerged.
	16.00	FD 2916	The sinking of "BORIS" makes down loading torpedoes necessary, in fact 2 stern torpedoes to the bow room, 2 torpedoes from the forward upper deck canisters into the bow room. The boat finally gets sufficient fillings for the trim tanks, while the down loaded weight has practically no effect. The down loading takes 12 hours as a result of the loaded condition of the boat in the rooms.
	20.00	FD 2177

	08.06.43	Central Atlantic
	00.00	FD 1368
		SE 1, Sea 0-1, lightly cloudy, Vis. good

	Sun and Moon Data 05.06.43
	Sun and Moon Data 06.06.43
	Sun and Moon Data 07.06.43
	Sun and Moon Data 08.06.43

- 56 -



	continued
	08.06.43	Central Atlantic
	04.00	FD 1326
	08.00	ES 7981
	08.30 - 09.08		Exercise dive.
	12.00	ES 7823
		Lat. - 03° 14'N
		Long. - 26° 36'W	Day's run: 171.6 nm Surfaced, 1.5 nm Submerged.
	16.00	ES 7573
	16.05		Incoming Radio Message: 1145/8/382 concerning question, how much fuel the boat required to get from the supply square to the homeland.
	16.40	ES 7545	Steamer in sight bearing 4°T, 10 nm away.
		The steamer was already out to the smokestack when sighted. It was seen too late because the horizon in the direction of the steamer was obscured by our own smoke. The order to crash dive had to be given immediately because due to the characteristics of the boat increasing speed to match speed or maneuver ahead generates such a noticeable cloud of smoke that the boat would be detected immediately. Initiated submerged attack and at range = 2500 meters shot two associated single shots. Luckily, shots missed, because it turns out later that it was a neutral - Spanish. The illumination conditions were unfavorable - against the sun - of the painted flag on the side of the hull only the middle strip was distinguished as a bright line and was thought to be wood cargo amidships. Check by the First Watch Officer and Ob.Sturm. gave the same impression. The red stripes over and under the yellow did not stand out from the ship's side at all. That it was a Spaniard was only seen first from a position behind, however clearly there. My opinion that it was not a neutral was strengthened by the Radio Message received on 5 June, in which the neutrals in our transit route were listed and at our location we were not expected to meet.
	20.00	ES 7463
	23.00		Outgoing Radio Message 2213/8/395.
			Arrival naval square DG center with 8 cbm; 44 cbm requested. 8 June ES 7545 16.40 hours Spaniard course 200°.
			- Musenberg -

- 57 -




	continued
	09.06.43	Central Atlantic	Course: 300°, turns for 7 knots.
			The course is continued farther than intended, but it is impossible for this boat to steer a course where smoke rises from the aft over the bridge.
	00.00	ES 7426
		SSE 2, Sea 1, few clouds, Vis. good
	08.00	ER 9392
	08.29 - 08.58		Exercise dive.
	12.00	ER 9328
		Lat. - 04° 48.5'N
		Long. - 28° 27.3'W	Day's run: 140 nm Surfaced, 8.5 nm Submerged.
	13.55		Incoming Radio Message: 1255/9/302. concerning orders to head for naval square DG 74. (for supply)
	16.00	ER 6979
	20.00	ER 6866
	22.20 - 01.57		Stopped to repack the stern tubes.

	10.06.43	Central Atlantic
	00.00	ER 6838	Course: 325°, turns for 7 knots.
		SSE 1, Sea 0-1, half overcast, Vis. good
	04.00	ER 6825
	08.00	ER 6582
	08.55 - 09.14		Exercise dive.
	12.00	ER 6521
		Lat. - 06° 48'N
		Long. - 29° 26'W	Day's run: 133.8 nm Surfaced, 1 nm Submerged.
	16.00	ER 6249
	20.00	ER 6216

	11.06.43	Central Atlantic
	00.00	ER 3872	Course: 350°, turns for 7 knots.

	Sun and Moon Data 09.06.43
	Sun and Moon Data 10.06.43
	Sun and Moon Data 11.06.43

- 58 -



	continued
	11.06.43	Central Atlantic	Course: 350°, turns for 7 knots.
	00.00	ER 3872
		NE 1, Sea 0m lightly overcast, Vis. good
	04.00	ER 3814
	08.00	ER 3493
		Rain
	09.05 - 09.25		Exercise dive.
	12.00	ER 3439
		Lat. - 09° 18.7'N
		Long. - 29° 51.5'W	Day's run: 151.8 nm Surfaced, 1 nm Submerged.
		Overcast, rain
	16.00	ER 3195
	20.00	ER 3164

	12.06.43	Central Atlantic, southwest of Cape Verde
	00.00	ER 3123
		NE 4, Sea 3-4, overcast, rain, Vis. medium
	04.00	EH 9783
	08.00	EH 9728
	08.45 - 09.05		Exercise dive.
	12.00	EH 9724
		Lat. - 11° 14.2'N
		Long. - 30° 22.1'W	Day's run: 122 nm Surfaced, 1 nm Submerged.
	16.00	EH 9476
	20.00	EH 9445

	13.06.43	Central Atlantic

	Sun and Moon Data 11.06.43
	Sun and Moon Data 12.06.43
	Sun and Moon Data 13.06.43

- 59 -



	continued
	13.06.43	Central Atlantic
	00.00	ER 9178
		NE 3, Sea 2, overcast, Vis. medium
	04.00	EH 9144
	08.00	EH 8333
	08.48 - 09.14		Exercise dive.
	12.00	EH 5991
		Lat. - 13° 24.1'N
		Long. - 30° 54.2'W	Day's run: 133 nm Surfaced, 1 nm Submerged.
	16.00	EH 5961
	20.00	EH 5689

	14.06.43	Central Atlantic
	00.00	EH 5663
		NE 3, Sea 2, overcast, Vis. good
	04.00	EH 5622
	08.00	EH 5357
	09.08 - 09.30		Exercise dive.
	12.00	EH 5352
		Lat. - 15° 36'N
		Long. - 31° 10'W	Day's run: 134 nm Surfaced, 1 nm Submerged.
	16.00	EH 2978
	20.00	EH 2946

	15.06.43	Central Atlantic, west of Cape Verde	Course: 350°, turns for 7 knots.
		NE 4, Sea 3, half overcast, Vis. good

	Sun and Moon Data 13.06.43
	Sun and Moon Data 14.06.43
	Sun and Moon Data 15.06.43

- 60 -



	continued
	15.06.43	Central Atlantic, west abeam Cape Verde
	00.00	EH 2913
	04.00	EH 2648
	08.00	EH 2617
	09.15 - 09.25		Exercise dive.
	12.00	EH 2522
		Lat. - 17° 40.5'N
		Long. - 32° 02.8'W	Day's run: 136 nm Surfaced, 1 nm Submerged.
	16.00	EH 2257
	20.00	EH 2224
	22.28		Outgoing Radio Message: 2229/9/302.
			Position 19 June 14.00 hours at meeting point with supplier (DG 7777)
			- Musenberg -

	16.06.43	Central Atlantic
	00.00	DS 8876
		NE 4, Sea 3, overcast, Vis. good
	04.00	DS 8842
	08.00	DS 8812
	12.00	DS 8496
		Lat. - 19° 38'N
		Long. - 32° 35.3'W	Day's run: 122 nm Surfaced.
	16.00	DS 8462
	20.00	DS 8197	Turns for 8 knots.

	17.06.43	Central Atlantic
	00.00	DS 8136
		NE 3-4, Sea 3, light overcast, Vis. good
	04.00	DS 5789

	Sun and Moon Data 15.06.43
	Sun and Moon Data 16.06.43
	Sun and Moon Data 17.06.43

- 61 -



	continued
	17.06.43	Central Atlantic
	08.00	DS 5755
	10.12 - 10.44		Crash dive for training.
	11.16 - 11.38		Crash dive for training to depth A +20 meters.
	12.00	DS 5719
		Lat. - 21° 56.9'N
		Long. - 35° 10.0'W	Day's run: 139 nm Surfaced, 3 nm Submerged.
	16.00	DS 5472
	20.00	DS 5417

	18.06.43	Central Atlantic
	00.00	DS 4396
		NE 3, Sea 2, overcast, Vis. good
	04.00	DS 4338
	08.00	DS 1993
	10.50 - 11.31		2 times crash dive for training at higher speed.
	12.00	DS 1928
		Lat. - 24° 38.3'N
		Long. - 33° 48.0'W	Day's run: 158 nm Surfaced, 1.5 nm Submerged.
	16.00	DS 1685
	20.00	DS 1651

	19.06.43	Central Atlantic	Course: 354°, turns for 7 knots.
	00.00	DS 1379
		NE 3, Sea 2, overcast, Vis. good
	04.00	DS 1345
	08.00	DS 1312
	09.00	DG 7776	U-530 in sight bearing 320°T, 6 nm away.
	10.15		Began fuel oil transfer. Course 270°.
	12.00	DF 9996
		Lat. - 26° 49.9'N
		Long. - 34° 25.8'W	Day's run: 134 nm Surfaced.

	Sun and Moon Data 17.06.43
	Sun and Moon Data 18.06.43
	Sun and Moon Data 19.06.43

- 62 -



	continued
	19.06.43	Central Atlantic
	16.00	DF 9995
	19.00		Fuel oil transfer ended, return transit via DG 7777 for U-530 to give a Metox to U-572.
	20.00	DF 9995
	23.00	DG 7777	Met U-572, U-530 gave a Metox to the boat.
	23.15		Together return transit with U-530.
			Course 50°, turns for 9 knots.

	20.06.43	Central Atlantic, 900 nm west abeam the Canary Islands
	00.00	DG 7775
		NE 2, Sea 0-1, light overcast, Vis. good
	04.00	DG 7755
	08.00	DG 7735
	08.48 - 09.14		Exercise dive.
	12.00	DG 7572
		Lat. - 27° 49.3'N
		Long. - 32° 54.8'W	Day's run: 134.5 nm Surfaced, 1 nm Submerged.
	16.00	DG 7552
	20.00	DG 7299

	21.06.43	North Atlantic	Course: 50°, turns for 9 knots.
	00.00	DG 7349
		E 2, Sea 1, light overcast, Vis. good
	04.00	DG 7334
	08.00	DG 5775
	08.40 - 09.09		Exercise dive.
	12.00	DG 5751
		Lat. - 29° 56.8'N
		Long. - 30° 14.0'W	Day's run: 186 nm Surfaced, 1 nm Submerged.
	16.00	DG 5731
	20.00	DG 5548

	Sun and Moon Data 19.06.43
	Sun and Moon Data 20.06.43
	Sun and Moon Data 21.06.43

- 63 -




	22.06.43	North Atlantic	Course: 50°. turns for 9 knots.
	00.00	DG 5529
		NNE 1, Sea 0, few clouds, Vis. good
	04.00	DG 5296
	08.00	DG 5554	Course 36°.
	08.24 - 08.45		Exercise dive.
	12.00	DG 2986
		Lat. - 32° 13'N
		Long. - 27° 36'W	Day's run: 192.5 nm Surfaced, 1 nm Submerged.
	16.00	DG 2963
	20.00	DG 3478

	23.06.43	North Atlantic	Course: 36°, turns for 9 knots.
	00.00	DG 3452
		NE 2-3, Sea 2, lightly cloudy, Vis. good
	04.00	DG 3198
	08.00	DG 3245
	08.04 - 08.36		Dived for training.
	12.00	DG 3213
		Lat. - 34° 45.7'N
		Long. - 25° 32.1'W	Day's run: 183.5 nm Surfaced, 1.5 nm Submerged.
	16.00	CE 9959
	20.00	CE 9935

	24.06.43	North Atlantic
	00.00	CF 7549
		NE 1, Sea 0, few clouds, Vis. good
	04.00	CF 7526
	08.00	CF 7293

	Sun and Moon Data 22.06.43
	Sun and Moon Data 23.06.43
	Sun and Moon Data 24.06.43

- 64 -



	continued
	24.06.43	North Atlantic
	08.04 - 08.35		Exercise dive.
	12.00	CF 7312
		Lat. - 37° 24'N
		Long. - 23° 16.5'W	Day's run: 192.5 nm Surfaced, 1.5 nm Submerged.
	16.00	CF 4938
	20.00	CF 4933

	25.06.43	North Atlantic	Course 42°, turns for 9 knots.
	00.00	CF 5473
		NE 3, Sea 1-2, overcast, Vis. medium
	04.00	CF 5429
	07.43 - 08.14		Exercise dive.
	08.00	CF 5196
	12.00	CF 5241
		Lat. - 39° 48'N
		Long. - 20° 59'W	Day's run: 180 nm Surfaced, 1 nm Submerged.
	16.00	CF 5222
	20.00	CF 2865

	26.06.43	North Atlantic	Course: 50°, turns for 9 knots.
	00.00	CF 2927
		NE 2, Sea 0-1, overcast, Vis. medium
	04.00	CF 2697
		NE 4, high Swell
	07.38		Dived to proceed submerged.
	08.00	CF 3448
	12.00	CF 3446

	Sun and Moon Data 24.06.43
	Sun and Moon Data 25.06.43
	Sun and Moon Data 26.06.43

- 65 -



	continued
	26.06.43
	12.00	CF 3446
		Lat. - 41° 32'N
		Long. - 18° 20'W	Day's run: 151 nm Surfaced, 8.6 nm Submerged.
	16.00	CF 3455
	20.00	CF 3453
	21.14		Surfaced.

	27.06.43	North Atlantic	Course: 66°.
	00.00	GF 3517
		NE 4, Sea 3, overcast, Vis. medium
	00.34		Dived to proceed submerged.
	04.00	GF 3515
	08.00	GF 3521
	08.06		Surfaced.
	11.25		Dived to proceed submerged.
	12.00	GF 3377
		Lat. - 42° 04'N
		Long. - 16° 17'W	Day's run: 59 nm Surfaced, 35 nm Submerged.
	16.00	GF 3575
	19.39		Surfaced.
	20.00	GF 3376
		NE 5, Sea 4, misty
	23.23		Dived to proceed submerged.

	28.06.43	North Atlantic	Course: 64°.
	00.00	CH 1141
	04.00	CH 1118
	07.07		Surfaced.
	08.00	CH 1124
	10.35		Dived to proceed submerged.

	Sun and Moon Data 26.06.43
	Sun and Moon Data 27.06.43
	Sun and Moon Data 28.06.43

- 66 -



	continued
	28.06.43
	12.00	CH 1133
		Lat. - 42° 50'N
		Long. - 13° 58'W	Day's run: 81.8 nm Surfaced, 30.7 nm Submerged.
	16.00	BE 9887
	19.00		Surfaced.
	20.00	BE 9886
	23.27	EbyN 3, overcast, misty	Dived to proceed submerged.

	29.06.43	North Atlantic
	00.00	BE 9893	Course 74°.
	04.00	BE 9971
	06.31		Surfaced.
	08.00	BE 9957
	11.07	EbyN 5, Sea 4, misty, low Stratus	Dived to proceed submerged.
	12.00	BE 9964
		Lat. - 43° 20'N
		Long. - 12° 00'W	Day's run: 64.9 nm Surfaced, 25.5 nm Submerged.
	16.00	BE 9965
	19.00		Surfaced.
	20.00	BF 7741
	23.46	EbyN 5, Sea 3-4, misty, low Stratus	Dived to proceed submerged.

	30.06.43	Bay of Biscay	Course 61°.
	00.00	BF 7734
	04.00	BF 7732
	06.00		Surfaced.
	07.30		Aircraft ahead to port. Aircraft came out of the clouds, so that it was too late to crash dive. I attempted to keep the aircraft always astern and in so doing ran in two full circles. The aircraft circles at a distance of

	Sun and Moon Data 28.06.43
	Sun and Moon Data 29.06.43
	Sun and Moon Data 30.06.43

- 67 -



	continued
	30.06.43	Bay of Biscay
			1500 to 2000 meters. The aircraft does not succeed in starting an abeam approach. After the second full circle the aircraft flies from astern to attack, at this moment the extractor claw of the MG C/30 broke, so that there were no shots during the approach. At the appropriate moment hard rudder. The aircraft flew over the boat astern in a turn and threw no bombs. It can be accepted that the aircraft did not bomb because they probably did not have us in their cross hairs, and the bombs would have gone behind the boat due to the turn. The machine gun fire from the aft quadruple gun after the overflight lay a bit too short. Altitude of the aircraft over the boat was about 100 meters. Own light anti-aircraft machine guns could not be used aft as a result of their mountings. Type 4-eigined Boeing, British markings. After the overflight I gave the order to crash dive immediately. I believe that with heavy aircraft, I can get deep in a timely manor if I give the order to crash dive immediately after overflight.
	08.00	BF 7578
	12.00	BF 7576
		Lat. - 43° 57'N
		Long. - 9° 58'W	Day's run: 64.3 nm Surfaced, 31.8 nm Submerged.
	16.00	BF 7584
	20.00	BF 7582	Surfaced.
	20.32	BF 7559	Crash dive for aircraft, 4-engined 7000 meters away.

	01.07.43	Bay of Biscay
	00.00	BF 7534
	00.10		Surfaced for navigation fix.
	00.25		Dived to proceed submerged.
	02.10		Course 136°, navigation fix showed that we are too far to the north, there has not been a navigation fix for 3 days.

	Sun and Moon Data 30.06.43
	Sun and Moon Data 01.07.43

- 68 -



	continued
	01.07.43
	04.00	BF 7535
	05.00		Surfaced.
	05.10		Crash dive due to detection.
	06.05		Surfaced.
	06.15	BF 7645	2 destroyers in sight, Recognition Signals exchanged and was taken under escort by the destroyers.
	08.00	BF 7652	The together submerged transit up to the intake by the destroyers was complicated by the fact that U-530's listening gear was out of service and we could only receive Underwater Telegraphy using our listening gear because our Underwater Telegraphy receiver was out of service. Underwater Telegraphy signals are blurred in the listening gear. During the submerged transit depth charge and aircraft bomb series were heard repeatedly.
	08.12	BF 7653	Crash dive for three 4-engined aircraft.
	08.45		Surfaced.
	09.00		Crash dive for aircraft.
	09.18		Surfaced.
	11.55	BF 8427	Crash dive for 9 aircraft in direct approach from astern, later it turned out that there were own JUs, which took over fighter escort. The JUs did not give timely Recognition Signals.
	12.00	BF 8427
		Lat. - 44° 29'N
		Long. - 7° 24'W	Day's run: 55.5 nm Surfaced, 29.6 nm Submerged.
	12.22		Surfaced.
	13.53		Liberator abeam to starboard, was forced off by three JUs. It was agreed with the destroyers that we would dive only with direct danger and obvious approach.
	16.00	BF 8435

- 69 -



	continued
	01.07.43	Bay of Biscay
	20.00	BF 8523

	02.07.43	Bay of Biscay	Course: 82°, turns for 12 knots.
	00.00	BF 8388
		ENE 2-3, Sea 2, few clouds, Vis. good
	04.00	BF 9184
	08.00	BF 9272
	12.00		Day's run: 236 nm Surfaced.
			Route Handgepäck.
	14.30		Taken in convoy by Minensuch, Sperrbrecher and Flakjäger.
	16.06		Gironde objective buoy.
	19.30		Made fast at the Le Verdon buoy, took 3 cbm fuel from U-518 which came alongside because I am not certain I can reach Bordeaux. The sounding of the last remaining contents of the fuel tanks are inexact and show about 2 cbm.

	03.07.43	Gironde
	05.30		Ready for sea, proceeded under escort on the Gironde to Bordeaux.
			Made fast Bordeaux.
		Total days at sea 145; total distance covered 2208.3 nm.
			[distance is wrong more like 12600 nm]
		On board, 3 July 1943

			Korv.Kapt. and Kommandant.

	Sun and Moon Data 01.07.43
	Sun and Moon Data 02.07.43
	Sun and Moon Data 03.07.43

	Enclosures to U-180's KTB - click on the text at left to proceed to the document

Radio	Excerpt of the Radio Log

Evaluation	Evaluation of the system



	Comments of the Befehlshabers der Unterseeboote
	on the K.T.B. of "U-180" (Musenberg) from 9.2. - 3.7.43.

	First patrol of the Kommandant with a new boat.
	The special task was carried out as planned and was well considered. The boat coped well with the difficulties of first testing a completely new engine layout and gained valuable experience. The combat task had to step into the background because of the special circumstances of the patrol. Therefore the sinking of two steamers is especially pleasing. The behavior during the aircraft attacks was good, a shoot down can be accepted as likely. The special technical experience of the boat will be evaluated and considered separately. The boat will no longer be used as a combat boat.
	Accredited successes:
	1 steamer 8132 GRT sunk
	1 steamer 5166 " "
	1 aircraft shoot down likely

		For the Befehlshabers der Unterseeboote
		The Chief of the Operations Department.



	Copy.
	- - - -

	Subject: Loading of goods on U-180 (Musenberg)
	Addressed: KTB U-189 from 9.2. to 3.7. B.No. 1/Skl. 20 727/43 gKdos

	R e m a r k s .

	The loading and outfitting of this boat was done by Skl. Qu AU without the input of 1/Skl. I g. Pursuant to consultation of 1/Skl. 1 ga with Skl. AU b (Korv.Kpt. Reschke) in pursuit of the matter on page 30 of the KTB by Skl. Qu AU, because this section concerned Skl. AU, and a copy of the KTB is not yet available for the official on charge, he has requested a copy of an extract.


	I.V.
	signed in draft von Wangenheim


	B.No. 1.Skl. 22 129/43 gK
	----------------------------



	Copy.

	Seekriegsleitung Berlin, 9. 8. 43.
	B.No. 1.Skl. 22 129/43 gK


	To
	Skl. Qu AU Pr. 1


	Subject: U-180 (Musenberg)
	Addressed: Consultation 1.Skl. with Skl. Qu AU b.


	U-180 reported on page 30 of the KTB under 24. 4. 43.:
	"Signalman guest sent aboard the Japanese boat. First Watch Officer set to the Japanese boat by rubber boat for welcome and discussions. Understanding is difficult, because only broken German or English was spoken. We agreed that we should first run together in the hope of better weather, since very good weather is required for the transfer with available means - 4 small light inflatable boats with net bottoms. Delivery of a torpedo canister - contents gun barrels and ammunition - as well as transfer of three torpedoes endangers the outer hull plating in rough seas; likewise the boxes with documents and drawings are endangered by sea water, especially since the packaging in no way takes into account a transfer at sea."
	The above excerpt will be sent in accordance consultation by 1 / Skl. Iga with Skl. Qu AU b with a request to examine the matter and to arrange for it to be done.

	I.V.
	signed in draft von Wangenheim


	F.d.R.

	Reg.Ob.Insp.













			K r i e g s t a g e b u c h " U 180 "

			Kommandant : Fregattenkapitän Musenberg

			Beginning : 4 July 1943

			Ending : 30 September 1943.















		4 July

		to

		30 September		Shipyard period in U-boat Base Bordeaux.


		30 September 1943		Off-duty with the evening flag parade.


				Closed out at decommissioning


				Signed in draft Musenberg
				Frg.Kapt. and Kommandant.

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				16 May 1942
				Commissioning by the Kommandanten in
				Bremen (Shipyard: A.G. Weser)

				17 to 21 May 1942
				Fitting out and remaining work in the shipyard.

				21 and 22 May 1942
				Transit from Bremen to Kiel

				23 to 25 May 1942
				Fifth U.-Flottille

				26 May to 11 June 1942
				U.A.K. Testing Kiel

				12 and 13 June 1942
				Transit to Stettin

				14 and 15 June 1942
				Transit to Rönne and sound trials by U.A.G. "Schall"

				16 and 17 June 1942
				Transit to Danzig U.A.G.

				18 to 25 June 1942
				U-boat Base Danzig

				26 June to 17 July 1942
				U.A.G. testing Danzig

				18 July 1942
				Transit to Hela

				19 July to 16 August 1942
				Agru Front Hela

				17 Aug 1942
				Transit to Danzig

				18 to 20 August 1942
				U.A.G. testing Danzig

				21 to 30 August
				25th U.-Flottille Danzig

				31 August 1942
				Transit to Gotenhafen

				1 to 9 September 1942
				Tactical training

				10 September 1942
				Transit to Danzig

				11 and 12 September 1942
				25th U.Flottille Danzig

				© U-boat Archive 2023 - all rights reserved

	- 1 -




				13 September 1942
				Transit to Rönne

				14 September 1942
				Sound trials by U.A.G. "Schall"

				15 and 16 September 1942
				Transit to Kiel

				17 and 18 September 1942
				Transit to Bremen

				19 September to 19 December 1942
				Shipyard period in Bremen A.G.Weser
				Final adjustments and overhaul

				20 to 22 December 1942
				Transit to Kiel

				23 to 25 December
				Fifth U.-Flottille

				26 and 27 December 1942
				Transit to Rönne
				Sound trial for the propellers by U.A.G. "Schall"

				28 December 1942
				Transit to Kiel

				28 December 1942 to 7 January 1943
				Agru-Front

				8 and 9 January 1943
				Transit to Kiel

				10 to 19 January 1943
				Shipyard Deutsche Werke Kiel

				20 January to 1 February 1942
				Outfitting of the boat for the Front

				9 February Put to sea for the first patrol.

				Korv. Kpt. and Kommandant