U-405 - 6th War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed	Date	Arrived	Date	Days at Sea
Bergen	7 February 1943	St. Nazaire	23 March 1943	45

 

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
1 Mar 43	00.39	59°15'N, 36°24'W	RPT-1 (transported)	35	Soviet Union	HX-227
1 Mar 43	00.39	59°15'N, 36°24'W	RPT-3 (transported)	35	Soviet Union	HX-227
1 Mar 43	00.39	59°15'N, 36°24'W	WADE HAMPTON	7,176	American	HX-227
9 Mar 43	22.20	55°57'N, 18°55'W	HMS LCT-2341 (transported)	291	British	SC-121
9 Mar 43	22.20	55°57'N, 18°55'W	BONNEVILLE	4,665	Norwegian	SC-121
			Total = 12,202
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.

---

			Patrol	Copy No. 1
				K  r  i  e  g  s  t  a  g  e  b  u  c  h
			"  U  405  "                   Beginning:                   16.12.42               Concluding:                 23.3.43
			Kommandant:                  K.Kapt.      H  o  p  m  a  n
			Distribution: Copy No.   O.K.M.   1 - 2 B.d.U.   3 Komd.Adm. der U-Boote   4 6. U-Flottille   5 27. U-Flottille   6 Agru-Front   7 F.d.U.-West   8
			Enclosures:     1 Track chart for Copy No. 2 - 5 and 8 1 Excerpt of the Radio Log   "         " 2 - 5 and 8 3 Firing reports   "         " 2 - 5 and 8    Barograph strips   "         "     8
				© U-boat Archive 2025 - all rights reserved

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

	- 1 -
		16.12.42	Bergen	Began shipyard period.
		23.01.43		Pier-side testing.
		23.01.43
		12.00		Cast off Marineholm.  AK cruise on the measured mile. There is an aircraft salvage ship of the Air Base with an He 59 in the vicinity.  Shoots several white, red and green stars, the aircraft seems to be drifting off.
		13.00
		14.00
		14.05		Ran towards, a man swims in the vicinity of the aircraft.
		14.10		Man rescued.  Salvage ship drives around in the area like a humming top, interferes with my maneuvers and calls me, I should still fish out a man who drifted off in a dinghy.
		14.20		Man was rescued with the rubber boat.  Had to back strongly when taking him over because otherwise the escort vessel would run the boat over.
				Was asked to recover the aircraft which drifted towards the barrier and the cliffs.
				Closed with E-motors over the forestem, because the boat maneuvered badly in the strong squalls and there was only a little space left before reaching the islets.  Put a line over, the man on the aircraft worked well.  Attached the line to the port float.  Hauled the aircraft over the stern from the coast.  The line broke at the float, maneuvered once again.  The port wing contacted the forestem and was lightly damaged when the aircraft turned quickly in a gust.  Then moved forward taking the towline to the stern.  Since with both diesels AK against one another I could not turn against the wind,  I had to go back and forth tacking away clear of the coast and into the wind.  The aircraft towed well and steered in starboard echelon from me.
				In the meantime the salvage ship made off and left the work to me.
		15.15		The line broke once again.  A tug sent for assistance takes over the rest of the towing.  I remained in the area an hour, then performed a trim test.  Cylinder block of the starboard diesel exhibits too much play.  Must be removed once again.
		18.15		Made fast Laksevåg shipyard.
				After being clothed, the rescued people went to the Air Base by ferry.  The rubber boat was handed in the next day.  The Air Base took no notice of our assistance.  The leadership of the salvage ship made a helpless, unseamanship impression.

	- 2 -
		01.02.43		2nd sea trial.
		14.00		Cast off the shipyard.
				AK cruise on the measured mile.
				Deep dive test.
		17.30		Made fast.
		02.02.43		Final adjustments.
				Took over the boat.
		03.02.43
		13.10		Cast off from the shipyard.  Damage control exercises, crash dives.  Attack periscope is full of water.  A nut on the bottle was not tight.
		16.05		Made fast Marineholm.
				Took over the boat.
		___________________________________________________________________________________
		04.02.43		Torpedo loading Askøy and ammunition loading.  Periscope offloaded Skoldegrunnkay. [Skoltegrunnskaien]
		05.02.43		Provisions loading, took over the boat, medical examination.
		06.02.43		Magnetic compass calibration, radio direction finder calibration, installed the periscope.
		07.02.43	Bergen, Marineholm
		14.00		Cast off Marineholm to load drinking water alongside "UNITAS", because in Marineholm on Sunday the water piping was shut off and would not be ready for 6 hours.
		15.00		Cast off UNITAS.  Farewell by Flottillenchef.
		15.30		Final trim test in Puddefljord.
		16.15		Convoy intake by "UNITAS", transit to Hellisøy.
		18.58		Released from convoy.
		19.13	NW 4-5, Sea 4, overcast, Vis. 4-6 nm	Passed Hellisøy.  Transit into the North Atlantic via square AE 6585.  LF Diesel-electric.
		24.00	Abating, Vis. medium
			AN 2326
		___________________________________________________________________________________
		08.02.43	Norwegian Sea
		04.00	AF 8746
		08.00	AF 8479
			NW 4, Sea 3, overcast
		09.17		Detection on the gear, dived, balanced the boat.
		11.00		After surfacing the starboard E-motor bearing ran hot (100°C).  Had to be replaced.  Because of this the starboard E-motor was out of service for 14 hours.
		12.00	AF 8449	Day's run Surfaced        182 nm
			SE 4, Sea 4, overcast	Submerged    4.4 nm

	Sun and Moon Data 07.02.43
	Sun and Moon Data 08.02.43

	- 3 -
		continued
		08.02.43
		16.00	AF 8413	After raising a torpedo the steel band tore at the rivet.  The torpedo fell on the bunks, then the aft band broke.  The bandes were just checked.  Torpedo examined, rudder linkage was sluggish, battery fine.  Want to strike it down tomorrow, because it must be re-regulated in better weather.
			Norwegian Sea
			SE 4, driving snow, long Swell
		19.40		Radio Message 1837 to switch to Ireland Circuit on 9 September at 08.00 hours.
		20.00	AF 7393
		24.00	AF 7352
			SSW 6, Swell, Vis. 2 nm, hail and snow
		___________________________________________________________________________________
		09.02.43
		04.00	AF 7312
			SW 4, overcast, rain, Vis. 5 nm
		08.00	AF 4896
		12.00	AF 4856	Day's run Surfaced  154 nm
			SSW 3, Sea 4, overcast, Vis. 6 nm
		15.20	Norwegian Sea	U-boat in sight.  Turned away, so as not to be recognized.  Boat ran on the same course,  it can only be Dauter, who left before me.  However he should already be a day ahead of me.
		16.00	AF 4815
			SW 2, misty, overcast
		16.38		Boat in sight again.  Recognition Signals exchanged, thereupon closed.  Navigation ecompared with Dauter.
		20.00	AF 4495
			NNW 4, rain showers, Vis. 3 nm
		24.00	AF 4484
			NNW 6-7, overcast, high Swell
		___________________________________________________________________________________
		10.02.43
		04.00	AF 4474
			NNW 6-7, overcast, Vis. 4 nm

	Sun and Moon Data 08.02.43
	Sun and Moon Data 09.02.43
	Sun and Moon Data 10.02.43

	- 4 -
		continued
		10.02.43
		08.00	AE 6694
		10.57		Balanced the boat.
		12.00	AE 6684	Day's run Surfaced        161 nm
			Abating, Vis. improving	Submerged       2 nm
				163 nm
		16.00	Norwegian Sea
			AE 6674
			NW 2-3, medium-Swell, overcast
		20.00	AE 6587	Ran at HF through the Passage, because the Sea State does not permit higher speed.
			NW 4, Wind shifting left
		24.00	AE 6763
		___________________________________________________________________________________
		11.02.43
		04.00	AE 6785
			W 5, overcast, Vis. 2 nm
		08.00	AE 9117
			SSE 3, overcast, Vis. 400 meters - 6 nm
		10.15		Breaking up cloud deck with cloud height 200 meters.  Fu.M.B. taken in due to the Sea State.  Am positioned shortly before the patrol vessel line Medallanbucht Faroes.  Dived.  Proceeded submerged.  S-gear from a patrol vessel far off.
		12.00	AE 8367	Day's run Surfaced        185.4 nm
				Submerged       2.6 nm
				188 nm
		20.00	AE 8386	Surfaced.  Continued on with 1 diesel LF.  The diesel was too hot in the high Sea State with diesel-electric drive.  Diesel stopped several times due to excessive exhaust pressure, was very heavily strained.
			W 7, high Swell, Vis. 1-3 nm
		24.00	AE 9621
			WSW 6, Sea 8, overcast
		___________________________________________________________________________________
		12.02.43
		04.00	AE 8566
			Weather improving
		08.00	AE 8589
			WSW 4-5, rain, Vis. 3-4 nm
		11.00	North Atlantic	Balanced the boat.
		12.00	AE 8824	Day's run Surfaced        108.5 nm
			SSW 7, high Swell, squalls	Submerged        15 nm
				123.5 nm

	Sun and Moon Data 10.02.43
	Sun and Moon Data 11.02.43
	Sun and Moon Data 12.02.43

	- 5 -
		continued
		12.02.43
		16.00	AE 8816
			SSW 6, high Swell, hail showers
		20.00	AE 8842
		24.00	AE 8765
		___________________________________________________________________________________
		13.02.43
		04.00	AE 8787
			W 4-5, overcast, medium Swell
		08.00	AL 3215
			W 6, medium Swell
		12.00	AL 3137	Day's run Surfaced        110.5 nm
			W 8, Sea 7, rain squalls, Vis. 200 meters - 1 nm	Submerged           4 nm
				114 nm
		13.15	North Atlantic	Dived to balance the boat, pull torpedoes from the tubes to recharge.  Periscope pulled apart and sealed. Was not sealed with wax.
		1532		Surfaced.
		16.00	AL 3128
			WSW 10, Sea 7, showers
		17.34		Radio Message 1507.  Until disposition in planned reconnaissance line occupy as temporary attack areas Dauter square 34, Friedrich square 31, Hopman square 32.  All AK.
		20.00	AL 3143
		24.00	AL 2239
		___________________________________________________________________________________
		14.02.43
		04.00	AL 2226
			SW 6, Sea 6, overcast
		08.00	AL 2246
		11.07		Balanced the boat.
		12.00	AL 2166	Day's run Surfaced        84.5 nm
			SW 8, Sea 7, cloudy, Vis. good	Submerged      9.8 nm
				94.3 nm
		16.00	North Atlantic
			AL 2156

	Sun and Moon Data 12.02.43
	Sun and Moon Data 13.02.43
	Sun and Moon Data 14.02.43

	- 6 -
		continued
		14.02.43
		20.00	AL 2151
			SW 9-10, Vis. good, cloudy, sun
		24.00	AL 1269
			WNW 11, rain showers, Sea 9, Vis. low
		___________________________________________________________________________________
		15.02.43
		04.00	AL 1191
			NW 9, hail, rain, Sea 8, Vis. 100 meters - 2 nm
		08.00	AL 1284
		09.35		Dived. Pulled and recharged the torpedoes.
		12.00	AL 1272	Day's run Surfaced        89 nm
				Submerged      9 nm
				98 nm
			North Atlantic
		15.00	NW 5, Swell, Vis. medium	Surfaced.
		20.00	AL 1193
		22.27		Radio Message 2118.
				1.  Friedrich, Hopman, Dauter, Bernbeck, Förster, Schutz, Struckmeier, Marks, Hornkohl, and Stock form Group "Neptun".  On 18 February at 08.00 boats be in named order in reconnaissance line from AD 8718 to AK 3497, course 235°, day's run 100 nm.
				2.)  Boats arriving early do not remain in position instead set off to the east or west. By day remain submerged if possible, so that the line is not picked up by air early.
				Transit into position, it is not very far.
		24.00	AL 1174
			SW 5, rain, Vis. low
		___________________________________________________________________________________
		16.02.43
		04.00	AL 3246
		08.00	AL 3216
			SSW 6, Sea 5, rain showers, misty, Vis. bad

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

	- 7 -
		continued
		16.02.43
		10.42		Dived.
		12.00	AD 8878	Day's run Surfaced        125 nm
				Submerged     11 nm
				136 nm
			North Atlantic
		14.30		Surfaced.
		16.00	AD 8874
			SW 7, Sea 6, overcast, Vis. low
		20.00	AD 8764
			Vis. up to 1 nm
		24.00	AD 8728
			SW 9, Sea 8	Reached patrol line.
		___________________________________________________________________________________
		17.02.43
		00.17		Radio Message 2254.  Orders for Group "Ritter" patrol and reconnaissance line.
		04.00	AD 8486
			WSW 7, overcast, Sea 7, Vis. 3 nm, freshening
		08.00	AD 8486
			WSW 8-11, Sea 8-9, overcast, Vis. 50 meters - 3 nm
		09.15		At lightness submerged in position in accordance with orders.  Torpedoes pulled.
		12.00	AD 8488	Day's run Surfaced     102.2 nm
				Submerged     8.8 nm
				111 nm
		15.00	WSW 10-11, snow and hail squalls	Surfaced to ventilate and for Radio Messages.
		16.00	AD 8494
		16.02		Radio Message 1021 Group "Neptun"
				1.)  Tale up ordered position in the line immediately, do not be sighted by air.
				2.)  At 20.00 hours switch to "Diana" Circuit.
		17.00		Dived.
		18.00	SW 11-12, cloudy, hail squalls	Surfaced for Program Time.
		20.00	AD 8489
			W 9-10, hail squalls, overcast

	Sun and Moon Data 16.02.43
	Sun and Moon Data 17.02.43

	- 8 -
		continued
		17.02.43
		22.34		Radio Message 2308. Amendment to orders for Group Ritter.
		23.33		Radio Message 2308.  Bernbeck cannot reach position with the weather.
				That is understandable, we can also barely get ahead and the pumps cannot keep up, went partly to E-motors, because the diesel bilge floods despite pumping.
		24.00	AD 8486
			W 10-12, Sea 8-9, squalls
		___________________________________________________________________________________
		18.02.43
		01.00		Cooling water pump port diesel failed.  On disassembly a 3-inch [illegible word possibly Schäkel] was found over the piston, the connecting rod was bent.  It is certain sabotage!
		04.00	AD 8728
			Abating, W 7, Sea 6, cloudy, Vis. 3 nm
		00.06		Radio Message 2331.  Orders to exchange position in patrol line.
		08.00	AD 8758
			W 7
		10.45		Radio Message 1026.  1.  Group "Neptun" contrary to orders first 19 February set off in reconnaissance line.
		12.00	AD 8743	Day's run Surfaced        80 nm
			W 2, medium Swell, overcast	Submerged    7.5 nm
				87.5 nm
			North Atlantic
		16.00	AD 8757
			SE 4-5, Sea 4, snow showers, overcast, Vis. up to 1000 meters
		17.35		Radio Message 1733:  Group "Neptun" 19 February at 08.00 hours contrary to previous orders course 250° and day's rum 80 nm.
		20.00	AD 8745
		23.40		Radio Message 2322.
				Last reconnaissance order canceled.  From 20 February new patrol line from AK 2438 to 0269.  Westbound convoy expected on 20 February.
		23.50		Dived due to weather.  Transit to new position is faster submerged.

	Sun and Moon Data 17.02.43
	Sun and Moon Data 18.02.43

	- 9 -
		continued
		18.02.43
		24.00	AD 8758
			SSW 11, rain squalls, Sea 8
		___________________________________________________________________________________
		19.02.43
		04.00	AD 8785
		06.20		Surfaced.
				Groups "Ritter" and "Knappen" now form a lengthening of our patrol line.
		08.00	AK 3114
			NW 10, Sea 8, overcast
		12.00	AK 3144	Day's run Surfaced        93.3 nm
			W 11, abating, Sea 8-9, rain squalls, Vis. low	Submerged    20 nm
				113.5 nm
			North Atlantic
		16.00	AK 3177
			W 6, cloudy, sun, Swell abating
		17.18		Radio Message 1706.  Set off from ordered line at 10.00 hours on course 130°.
		18.45		Dived for aircraft detection.
		20.00	AK 3344	Detection turned out to be a harmonic of a short wave transmission on the radio.
		20.45		Surfaced.
		24.00	AK 2466
			ESE 8-9, rain, overcast
		___________________________________________________________________________________
		20.02.43	North Atlantic
		04.00	AK 2468
			SE 6-7, Sea 5, rain, Vis. low
		08.00	AK 2468
			SSW 8
		10.19		Radio Message 0947.
				To Group "Neptun", Groups "Ritter" and Knappen".  Contrary to previous orders due to weather conditions in the ordered position line remain in position as patrol line.

	Sun and Moon Data 18.02.43
	Sun and Moon Data 19.02.43
	Sun and Moon Data 20.02.43

	- 10 -
		continued
		20.02.43
		11.00		Diesels have sea water in the lubricating oil and had to be stopped.  4% sea water.
		11.10		Went to E-motors, dived to work in calm on the cause of the malfunction.  Additionally the head of the periscope has flooded 4 times.  The damaged area is on the port diesel.  Oil pumped out and replaced, so that the starboard diesel will be ready as soon as possible.  The separator does not work despite shipyard overhaul.
		12.00	AK 2493	Day's run Surfaced       124 nm
				Submerged      9 nm
				133 nm
			North Atlantic
		16.00	AK 2492
			SSW 11, Sea 8, cloudy, Vis. low
		16.22		Surfaced.  Starboard diesel and periscope are in service again.  No weather improvement, we have a new low every day.
				Radio Message 1358.  Enemy report from Höltring
				For us it is hopeless.  Over 400 nm exactly against the Sea State 7-8.  Therefore remained in position. My decision was later confirmed by orders.  Also Group "Ritter" will remain in position.
		18.20	[U-135]	Radio Message from Schütt.  He is no better, with weather and malfunctions.  In my opinion, he is in the wrong position.
		18.25		Dived after charging for further repairs.
		20.00	AK 2493
		22.00	SW 11-12, Sea 8, cloudy, Vis. up to 3 nm	Surfaced.
		22.47		Radio Message 1917.
				Group "Neptun" including Lohmann and Fraatz from 22.00 hours course 260° speed 3 knots.  Circuit from 21 February at 04.00 hours "Hubertus".
		24.00	AK 2491
			WSW 11, Sea 8, overcast, squalls, hail, Vis. low
		___________________________________________________________________________________

Sun and Moon Data 20.02.43

	- 11 -
		21.02.43
		04.00	AK 2482
			SSW 9, squalls
		05.02		Radio Message 0403.  New orders concerning position line Group "Neptun" for 22 February and 23 February at 00.00 hours.  Lohmann and Fraatz are added.
		08.00	AK 2473
		10.08		Balanced the boat.
		12.00	AK 2449	Day's run Surfaced         57 nm
				Submerged   18.5 nm
				75.5 nm
			North Atlantic
		16.00	AK 2395
			W 9, hail, Vis. up to 2 nm
		20.00	AK 2394
			WSW 7, overcast, Vis. medium
		23.00		Port diesel in service again to charge, battery is driven down to half.
		24.00	AK 2395	Reached position for 22 February at 00.00 hours.
			SSW 5, rain
		___________________________________________________________________________________
		22.02.43
		04.00	AK 2384
			S 9, Sea 7, overcast
		08.00	AK 2512
			SSW 10, rain, Vis. 1 nm
		10.20		Dived to reload and repair the flooded periscope head.
		12.00	AK 1633	Day's run Surfaced        63.5 nm
				Submerged     4.5 nm
				68 nm
			North Atlantic
		14.53		Surfaced.
		16.00	AK 1634
			WSW 6, cloudy, sun, Vis. good
		20.00	AK 1628
			W 9, Sea 8, overcast, Vis. medium
		24.00	AK 1627	Reached position for 23 February.
			W 8, squalls, Sea 7
		___________________________________________________________________________________

	Sun and Moon Data 21.02.43
	Sun and Moon Data 22.02.43

	- 12 -
		23.02.43
		04.00	AK 1641
		08.00	AK 1565
			W 9, Sea 7-8, hail showers, cloudy, Vis. 1000 meters - 2 nm
		11.10		Balanced the boat.
		12.00	AK 1559	Day's run Surfaced          72 nm
				Submerged    11.7 nm
				83.7 nm
			North Atlantic
		16.00	AK 1571
			W 5, Sea 5, cloudy, squalls, Vis. good
		20.00	AK 1574	Knocked down antenna lines repaired.  Main ballast and reserve fuel oil tank IV converted.  [for use as a ballast tank]  For the first time today no storm low.
			WSW 4, Sea 3, driving snow
		24.00	AJ 3394	Reached position.
			WSW 4, Sea 3, driving snow
		___________________________________________________________________________________
		24.02.43
		04.00	AJ 3622
			WSW 3, Vis. good, moonshine
		08.00	AJ 3652
			WSW 4, moonshine, cloudy
		10.30		Coarse system of the UZO failed.  Short in the UZO.
				Balanced the boat.
		12.00	AJ 3646	Day's run Surfaced        97 nm
			WSW 4, Vis. good	Submerged      5 nm
				102 nm
		13.00		Diesel run at AK, it is the first possibility on this patrol.
		16.00	AJ 3676	As always, we are too far to the north, the others rake to the south, there is great excitement, to see the Radio Messages is only very bitter for us.
		20.00	AJ 3832	It freshens again.
			WSW 6
		24.00	AJ 3829	Reached position for 25 February.
		___________________________________________________________________________________

	Sun and Moon Data 23.02.43
	Sun and Moon Data 24.02.43

	- 13 -
		25.02.43
		04.00	AJ 3851
			S 8, overcast, Vis. 4-5 nm
		08.00	AJ 3766
		11.20		Balanced the boat.
		12.00	AJ 3767	Day's run Surfaced          115 nm
			SW 7, rain, Vis. low	Submerged       2.1 nm
				117.1 nm
		16.00	AJ 3758
			S 8, misty, rain, Vis. 1 nm
		20.00	AJ 3782
			WSW 6
		24.00	AJ 3773	Reached position for 26 February.
			W 2, medium Swell, Vis. 1-2 nm
		___________________________________________________________________________________
		26.02.43
		04.00	AJ 3774	UZO dismantled.
			W 2-3, low Swell
		08.00	AJ 2998
		12.00	AJ 6131	Day's run Surfaced          94 nm
			W 2, driving snow, Vis. 200 - 2000 meters	Submerged       4.3 nm
				98.3 nm
			North Atlantic
		12.45		Radio Message 1202
				"Neptun" boats pay attention, NE-bound convoy is expected today.  Remain in reached position line as patrol line.  Free to use higher speed to monitor.
		16.00	AJ 6124
			NNE 2
		20.00	AJ 6118
		24.00	AJ 5362	Reached position in patrol line.  Moved back and forth in the direction of the position line at increased speed.
			N 4, Vis. 2 nm
		___________________________________________________________________________________
		27.02.43
		02.47	N 5, Vis. 200 meters, driving snow	Short Signal from Friedrich.
				Convoy AJ 5331, course 40°.
		03.35		Operated on convoy.  2 x HF against the seas.

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

	- 14 -
		continued
		27.02.43
		04.35		Jumped in as Radio Message repeater 2 times.  Control station did not hear.
		04.54	WNW 5, driving snow, Vis. 200 meters	Radio Message 0432 from Friedrich  . . . .
				Afterwards switched to Group Circuit.  Expect to have contact on the convoy at 09.00 hours.  Unfortunately Friedrich gave no enemy speed.  Plotted at 8 knots.
		08.50		Dived to listen.  Nothing heard.
		11.00		Requested bearing signals from Friedrich.  Radio Message was repeated.  Stood by for bearing signals from 05.00 hours, unfortunately he gives none, despite knowing that we are in the vicinity and  stating his navigation is inexact.
		12.00	AJ 2689	Day's run Surfaced          192 nm
			NNW 3, squalls, Vis. improving	Submerged         1 nm
				193nm
		13.13		Short Signal.
				Enemy convoy located naval square AJ 2921, course 30°, speed 7 knots, holding contact.    Friedrich.
				With exact navigation at the convoy, it is SW of me, turned towards it with a lead of 10 nm.
		14.32		Requested bearing signals again.
		15.17		Radio Message from Friedrich.
			[same position as above]	Have lost contact.  Last convoy position 11.05 hours square AJ 2921.
				Such nonsense.  I assumed this position on the basis of the Short Signal of 13.00 hours.  Turned further to the north and pursued at high speed.
				Control still has no knowledge of the convoy, as newly received position line order shows.
		16.40	WSW 3-4, squalls, Vis. good	Radio Message sent:
				1602.  Friedrich reported 03.00 hours NE course 7 knots.  11.00 hours contact lost.  Naval square AJ 2839, general course 30°.  Group Circuit.   Hopman
				1703.  Position naval square 2667, WSW 5, Sea 4, 1015 mb rising, Vis. 10 nm.   Hopman

Sun and Moon Data 27.02.43

	- 14 a-
		continued
		27.02.43
		17.14		1 destroyer in sight square 2653.
				Short Signal sent:
				Avoided to the east and continued to maneuver ahead.
		18.25	Squalls, Vis. good	Dived before an approach of the destroyer.  No sounds except the destroyer heard.
				With the good visibility smoke clouds would have to have been seen, if it was an escort.
		19.32		Either it was a sweeper sent out or a remote escort.
				Continued to pursue on course 30°.
		20.00	AJ 2663
			WNW 5, Vis. good
		21.23		Dived before the approach of a "TRIBAL"
				Suspect radar from both destroyers, which approached from target angle 0°, appeared as mastheads on the horizon.  My Fu.M.B. had so much noise, that a detection could not be heard.  After surfacing went around the destroyers to the east, maneuvered ahead again.
		24.00	AJ 2663
			WNW 2, Vis. 4 nm
		___________________________________________________________________________________
		28.02.43
				After I had the destroyers behind me, I turned towards again, under the assumption that they were a stern sweeper or remote escort.
		04.00	AJ 3274	It was misty, therefore reduced speed a bit.
			S 4, Vis. deteriorating
		06.18	Vis. 200 meters - 2 nm	A large steamer with 1 destroyer running just ahead, bearing 10°T, 1500 meters.  Turned away and began to maneuver ahead to attack.  Before anything came in sight, artillery in the immediate vicinity.  We

	Sun and Moon Data 27.02.43
	Sun and Moon Data 28.02.43

	- 15 -
		continued
		28.02.43
				must be close to the steamer again, however you cannot see your hand before your eyes, because we are now in a snow storm.  We were probably shot at by radar.
				Dived and made a hook.  S-gear.  At depth A meters the first depth charge series, lays over us, however relatively harmless.  It only rained splinters.
				3 series a total of 17 charges.  Depth A +70 meters.
				Besides S-gear, there is a series of small detonations which are like a series of 10-12 echo sounding impulses from a fast-moving aircraft.
				Phenomenon observed three times.
		08.00	AJ 3282	Radio Message sent:
				06.18 hours naval square AJ 3257 1 steamer, 3 destroyers, course 60°, artillery, depth charges, no further sound bearings.  SE 5, Sea 4, 1015 mb, falling, snow showers.
				Hopman
		09.12		Radio Message sent on Ireland Circuit.
		10.27		Hornkohl reports with Radio Message 1016.
				09.30 hours AD 9688 broad band in 20°T dived before detection 120 cm.  Vis. 1 nm.
				That must be another formation.  Because there were no sighting reports, I stick with our steamer and pursue on course 60°.
		11.45		Radio Message 1044.
				Leadership accepts that in Hopman report enemy position 3157 was meant.
				Probably destroyer supplying stragglers.
				The assumption was incorrect and was corrected in a Short Signal by me.
		12.00	AJ 3265	Day's run Surfaced          2212 nm
			SE 8, Sea 6-7, misty, rain, Vis. 2000-3000 meters	Submerged       11.1 nm
				232.1 nm
			North Atlantic
		13.36		1 large steamer abeam to port.
		14.00		Turned away to hold contact, because the seas are too heavy for a surface attack.  In so doing got between 2 columns and saw 5-6 large steamers.  Destroyer came from ahead and forced me to submerge.

Sun and Moon Data 28.02.43

	- 16 -
		continued
		28.02.43		Radio Message 1358 sent:
				5 steamers naval square AJ 3341, course 90°, Sea 7, Vis. 3000 meters, 62 cbm.
				Convoy zigzagged around 77°, speed 7 knots.
				Bearing signals have no purpose yet because no one is in the vicinity.
				Maneuvered ahead on the starboard side of the convoy to the very front.  It seems to have no flank escort.
				Reported course change to 40° by Radio Message.  Here there was a good opportunity for Fat with the low visibility weather.
		16.00	SE 8, Sea 7, strongly misty, rain, Vis. 1-2 nm
		16.39		Radio Message 1542:
				1.  Hopman as soon as there are indications if it is a large convoy or only 5 ships report this.
				2.  Leadership accepts that the main convoy was located by sound bearings from Hornkohl.
				3.  Boats operate on the most favorable part range-wise.
		16.40		Radio Message 1625 sent:
				Convoy square AJ 3342, easterly course, widely spaced.
		17.17		Reply Radio Message 1712.  Answer to question of Leadership.
				Partial convoy.  No weapons use possible.
				Thank God it has now abated somewhat.  The convoy closes up, some of the steamers run at 12 knots.  I hope to get into shooting position at night. The steamers have large draft so the torpedoes will still steer.
		19.32		The convoy zigzagged in a long rain squall, actually I expected the evening zigzag later because it first gets dark after 21.00 hours.  Radio Message "Convoy changed course to the north" not sent because he later zigzagged back again.
		20.00	AJ 3334
			S 5, rain showers, Vis. low, high Swell
		20.15		The forward steamer comes in sight again.  Convoy has a made a 100° course changed to port.

Sun and Moon Data 28.02.43

	- 17 -
		continued
		28.02.43
		20.37		Course change to 60°.  I cannot make out the other steamers due to the visibility.  The columns must now proceed in broad echelon.  Our steamer now runs at 11 knots.  Maneuvered ahead for attack, as soon as it is dark, then still get contact on the others.
		21.33		Three-fan tubes I, III, IV, target angle 90°, speed 11 knots, range - 800 meters, depth 5 meters.
			[H.S.O. = probably Merchant Officer -  a former merchant ship officer]	It is a Nords-steamer.  My H.S.O. estimates draft 8 meters.
				Miss on steamer.  My only explanation is that the torpedoes under steered in the Sea State.  After 7 minutes 2 detonations with a 4 second interval.
		22.00		The so-called main convoy seems to have been an iceberg, as Förster reported.  Shame, that I am alone here in the lousy weather.  Tube IV was reloaded, in the Sea State faultless work by the men.
		22.51	Vis. low, becoming 1000 meters, pitch dark
				Maneuvered ahead to attack.  Because I was shooting with fixed angle 0° with the failed UZO, the Torpedo Officer did not find the target early enough.  Had to reset once again to 400 meters and recognized that I am already too close.  With hard rudder I just passed behind his stern.  He Morsed Recognition Signal, because he probably saw my wake, however he stubbornly continued on his course.
				The moment I maneuvered ahead, he immediately passed out of sight, so another unsuccessful approach.
		24.00	AJ 1384
			S 5, rain showers, pitch black, Vis. 1000-1500 meters, steep Swell
		___________________________________________________________________________________
		01.03.43
		00.25		New attack from the starboard side.
		00.39		2-fan from tubes II and IV, depth 4 meters, speed 11 knots, target angle 90°.
				2 detonations after 48 and 52 seconds.
				Fiery glow aft of the cargo hold and bridge.  Steamer stopped immediately.  Also burned strongly on the port side.  Forward a bright Magnesium light,

	Sun and Moon Data 28.02.43
	Sun and Moon Data 01.03.43

	- 18 -
		continued
		01.03.43
				searchlight endangered position, extinguishes after a few seconds, probably because it no longer has power.  Illuminated the boat momentarily.  Shot with 2 cm high into the sky.  On the steamer wavelength he sent at low Volume, then cut out:
				SSS de cvn 33 torpedoed port side.
				"  de cyd 33  "
				"  de cyd 33  "
		01.35		Radio Message sent:
				Partial convoy dispersed on course 60°, speed 11 knots.  1 steamer 2 hits burning abandoned.
				Hopman.
		01.47		Dived to reload and repair the high pressure distributor.
		02.15		Several small detonations and cracking heard.  Steamer sank.
		05.00		Very slow propeller sounds heard in the vicinity.
		05.38		Surfaced.  Searched the area.
		08.00	AJ 1381
			WSW 4-5, Sea 4, overcast, medium Swell, Vis. 2-3 nm
				At the sinking location drifted a large field with apparently flour sacks and fat packets, lockers, lifeboats, life jackets.
		10.54		Radio Message 1023:
				Subsequent arrival in France ordered.  Again a great joy for us.
				At lightness mastheads come in sight to the north.  Ran on changing courses from north via east to west.
				Held contact.
				Steamer barely makes way, close by him sometimes alongside a destroyer mast.
				Short Signal sent:
				1 steamer, 1 destroyer square AK 1383.  Very low speed.
				Intend to haul out to the NW, to be ahead of him, if he wants to go further.
		12.00	AK 1383	Day's run Surfaced          181 nm
			W 5, Swell, Vis. good, sun	Submerged     13.4 nm
				194.4 nm
			North Atlantic
		12.25		Radio Message 1136 sent:
				00.39 hours naval square AK 1385 motor ship 9000 tons, similar to "PERTHSHIRE".  2 hits . . .

Sun and Moon Data 01.03.43

	- 19 -
		continued
		01.03.43
				sunk.  Drifting sacks.  Radio call-sign "CYD".  Searching further for dispersed convoy.  7 + 2 torpedoes.  W 5, Vis. 10 nm, medium Swell, 1019 mb, rising, +2°C.
				Hopman.
		14.19		Radio Message orders:
				Operate on Struckmeier-convoy.  Hopman at own discretion.
				I suspect a U-boat trap, yet it seems to be wounded, possibly as a result of our fan.  Went a little closer and recognized, it was the type of motor ship sunk by us yesterday, of which 3 were in the convoy.
				From all sides come sighting reports of the boats, there seems to be something going on here in the area.  Leadership gave us freedom to maneuver.
		14.30		Steamer now bears 270°T.  Suddenly heavy vertical smoke cloud, as if he got his engine in service again.  A mast comes out and a broad superstructure.  Despite moving off at high speed settings the vessel always comes closer.  Thick yellow smokestack, yellow superstructure, is must be an auxiliary cruiser.
		16.03	AK 1441	Dived and made a hook, because we were certainly seen.  Unfortunately the swell is too high to attack submerged.
			W 5, clear, sun, Vis. good
				Vessel ran over our diving location and off on course 90-100°.
				Surfaced, wounded is easily in sight again.  I decide to close submerged as soon as possible because the sea is calmer.  Steamer passed out of sight briefly, now it seems to be underway.
		18.50		In sight again, pursued.  Runs on course 250°, 10 knots.
		19.23 20.56	SW 4-5, cloudy, sun, Vis. good	Masts come in sight to starboard, that are in favorable position, operated on it.  Turns out to be a wounded again, suddenly stands vertically and sinks.  Square 1442.
				Crew was probably picked up by the auxiliary cruiser.
		21.00		Pursued the independent.
				Radio Message 2125 sent:
				19.00 hours naval square 1442, 2 large steamers, course 250°.  One of which sank without detonation at 20.56 hours.  Search for second ship continues, Vis. good, 1031 mb rising.  OZO out of service, 57 cbm.

Sun and Moon Data 01.03.43

	- 20 -
		continued
		01.03.43
				By mistake sent:  "Have new contact".  Now it goes against the sea again.  That is unpleasant because my watertight forecastle is jammed open.  Much water comes over.
				Will take the large steamer first and then go to the convoy, because the direction is about the same and I have freedom to maneuver.
				Several Radio Messages concerning the convoy from Marks and Struckmeier, there must be a large navigation difference.
		24.00	AK 1359
			SW 4, medium Swell, Vis. 4-5 nm
		___________________________________________________________________________________
		02.03.43
		04.00	AJ 9898	Contact keepers have lost the convoy.  Hope to still locate the convoy with long legs.
			S 5, Sea 3, Vis. decreasing to 1 nm
		08.00	AJ 3315	When checking the plotting sheets, it turns out that the wounded ship was 45 nm from the detonation location from the fan shot at the column on 28 February at 21.33 hours, it had drifted at the location since 1 March and sank there in the evening. The expedient navigation fix of 18 nm in the course of the morning skewed the drifting at the location.
			SSW 5, clear, Vis. 5 nm
		12.00	AJ 3261	Day's run Surfaced      230 nm
				Submerged      5 nm
				235 nm
			North Atlantic
		14.15		Dahlhaus reports the sinking of a steamer, which must have come from our convoy.
		16.00	AJ 3249
			SW 6, clear, Vis. medium
		20.00	AJ 3167
			Vis. deterioration
		21.25		Radio Message sent after earlier attempt.
				28 February 22.00 hours three-fan on partial convoy in broad echelon.  1st steamer missed, 2 detonations after 7 minutes, drifting steamer U-boat trap suspected.  Sinking reported.  Assume hit fan 9000 ton position naval square AJ 3249.  No contact.  48 cbm, SW 7, Sea 5, 1024 mb, falling.    Hopman.
		22.36		Radio Message 2204.

	Sun and Moon Data 01.03.43
	Sun and Moon Data 02.03.43

	- 21 -
		continued
		02.03.43
		22.58		Radio Message 2240
				To Hopman:
				Reports give no clear picture.  Give new count and size of sunk ships with position and times.
				I probably expressed myself too vaguely, because I wanted to leave the decision to Leadership.
		24.00	AJ 3171
			SSW 4, rain, medium Swell, Vis. 3 nm	Now searched to the south.
		___________________________________________________________________________________
		03.03.43
		04.00	AJ 3441	Wind as always from ahead.
			S 4, overcast, Vis. 3 nm	Radio Message weather sent by Radio Message repeater.
		08.00	AJ 3711
		11.20		Balanced the boat.
		12.00	AJ 3744	Day's run Surfaced      181 nm
				Submerged      2 nm
				183 nm
			North Atlantic
		13.28		Radio Message 1245
				1.  Förster, Dauter, Stock, Hopman, if up to darkness there is no contact, break off operation and in named order occupy the following attack areas.  Square AJ 53, square 64, square 62 and square 66.
				2.  All boats in attack areas or patrol lines economical fuel consumption.  Add fuel to necessary reports.
				I had already expected a new patrol line.
		16.00	AJ 2929
			SW 6, squalls, Vis. good
		16.21		Radio Message sent after 12 previous attempts:
				1 March 00.39 hours naval square AJ 1385 motor ship 9000 GRT sunk.
				28 February 21.33 hours naval square AD 9899 motor ship 9000-10000 tons torpedoes, 1 March 20.56 hours naval square AJ 1445 sunk.
		18.00		Transit to new operations area.
		20.00	AJ 3774
			SW 6-7, Vis. good
		24.00	AJ 6225
		___________________________________________________________________________________

	Sun and Moon Data 02.03.43
	Sun and Moon Data 03.03.43

	- 22 -
		04.03.43
		04.00	AJ 6264
			WSW 5, cloudy
		08.00	AJ 6377
			SW 3, lightly misty
		10.47		Balanced the boat.
		12.00	AJ 6628	Day's run Surfaced      139 nm
			SSE 3, Vis. good	Submerged      4 nm
				143 nm
			North Atlantic
				Back and forth in position on NE-SW courses.
		15.08		Radio Message 1452
				To Group "Wildfang" and "Burggraf":
	[U-405 was stationed exactly in the middle of the "Wildfang" and Burggraf" patrol lines about 90 sea miles to the west.]			In area of the patrol line from evening 4 March 1 NE-bound convoy expected, speed of advance 7 knots.  Monitor area faultlessly.
		16.00	AJ 6667
			SSE 6, Vis. medium, misty, rain
		20.00	AJ 6654
		24.00	AJ 6657
			S 8, Vis. 500 meters - 2 nm, hail, rain
		___________________________________________________________________________________
		05.03.43
		04.00	AJ 6637
		08.00	AJ 6649
			SW 8, Sea 7, squalls, Vis. improving
		12.00	AJ 6681	Day's run Surfaced      126.5 nm
				Submerged      0 nm
			North Atlantic
		13.15		Dived, dried periscope head, bridged torn cell in battery 1.  Auxiliary drain pump no longer has suction, examined.
		15.30		Surfaced.
				Report of the failure must be put off until later because now we must maintain radio silence.
		16.00	AJ 6682

	Sun and Moon Data 04.03.43
	Sun and Moon Data 05.03.43

	- 23 -
		continued
		05.03.43
		19.37		Radio Message 1917
				Group "Wildfang" and "Burggraf" from 23.00 hours course 45°, speed 6 knots over ground.  On the morning of 6 March at 10.00 hours come about and in the evening at 21.00 hours remain in position as patrol line.
				Group was moved a bit.
		20.00	AJ 6682
			SW 8-9, snow showers, Vis. up to 5 nm
		24.00	AJ 6657	Very strong St. Elmo's fire illumination of the entire boat.
		___________________________________________________________________________________
		06.03.43
		04.00	AJ 6657
		08.00	AJ 6682
			WSW 6-7, Sea 6, misty, snow showers, Vis. 2000-3000 meters
		09.48		Steamer sighted bearing 320°T, range - 3000 meters, turned away, in so doing another 4 steamers in sight, corvettes in front of them.
		09.54		Short Signal sent:
				5 steamers square 6691, course 45°.
				Corvettes come very close, therefore dived, to periscope depth.
		10.28		1 steamer still in sight.
		10.40		Short Signal sent.
				The other boats are all over 60 nm away.  So we absolutely have to hold contact.  2-3 steamers were overlapping well before the tubes, however we would probably be left without contact.
		11.33		After a closer examination, I came to the conviction that it is a convoy, steamers proceeded in 2-3 columns.
				Therefore Radio message:
				Convoy positioned naval square AJ 6669, course 90°, speed 7 knots, 38 cbm.
				Failures:  "GHG", "Trim pump", "Battery cell 1", W 7, Vis. 6 nm, 1025 mb rising.
				Hopman.
				I gave the malfunctions with because it was the first possibility to report this.
		12.00	AJ 4447

	Sun and Moon Data 05.03.43
	Sun and Moon Data 06.03.43

	- 24 -
		continued
		06.03.43	W 7, Sea 6, driving snow, Vis. up to medium	Day's run Surfaced      112.4 nm
				Submerged    10.2 nm
				122.6 nm
			North Atlantic	The visibility is dammed bad for holding contact, because the snow squalls come from the direction of the enemy.  However since we are from the Arctic, we are very accustomed to it.  We mainly hold contact on a large steamer, positioned ahead to starboard and smoking heavily.
		12.06		Radio Message 1150.
				Question the course and speed of the convoy.
				Had over lapped [with our last message].
				On the basis of the plotting sheet the course tis easterly.
				Short Signal:
				Square 4449.  Enemy steers 80°.
				About evening the first boat gets there.
		13.44		Radio Message 1324.
				Hopman report, if only 5 steamers or more were observed.
				I thought that this would already be clear from my second message in which I reported a convoy.
		14.00	Abating somewhat, high W-Swell, sometimes the sun breaks through
		14.16		Radio Message 1352 sent.
				In Vis. 2 nm, 2 columns 5 steamers, 2 corvettes, additional smoke clouds.  Naval square AK 4454.  Driving snow.
				Hopman.
				Gradually I get uneasy because I always have one steamer, thank God now additional smoke clouds and a destroyer come out.
				Sent Short Signal.
				Square AK 4452, course 60°, speed 9 knots.
				My navigation must be in roughly correct, a sun altitude gives only a small error.
		15.06	Vis. 100 meters	The convoy passes out of sight in a heavy snow squall.  Carefully went to the north and at 16.15 hours again detected 3 steamers and our old friend.

Sun and Moon Data 06.03.43

	- 25 -
		continued
		06.03.43		Short Signal sent:
				Square AK 4422 enemy steers 0°.
				Hornkohl requests bearing signals.  That will be damn unpleasant given the visibility.
		16.00	AK 4436
			W 4, high Swell, cloudy, heavy show showers, Vis. 1000 meters - 5 nm	I gave bearing signals in accordance with War Orders. Heavy snow squalls come again.  With the second giving of bearing signals a vessel with target angle 2-5° came out of the snow at barely 2000 meters.  I lay athwart its course and in the swell cannot get away.
		17.55		Dived, in the hope that I was not seen and that it was a steamer.
				Unfortunately it was a large corvette with a diesel engine, which overruns us at the beginning.  I descended with 30° bow down angle, initially to depth A +40 meters and balanced the boat at depth A +60 meters.  When I again heard diesel sounds, I believed that Hornkohl had overrun me, it sounded exactly like a U-boat at GF.
		18.23		This mistake was soon corrected by well-placed depth charges and the already mentioned small series detonations.  S-gear now began, we seem to have favorable layers here.  Without functional listening gear sitting in the cellar is bad because one cannot know when he goes away.  After the depth charges the gyro-compass and the port clutch failed.  Had to stop the port E-motor.  The boat holds well at depth 2A meters.
				Incidentally, of course, the usual broken glass, cable breaks and short circuits.
				I showed the corvette the stern, there must be 2 now.  You can hear them working in the Sea State, possibly in addition to diesel engines, they have a noiseless drive option so that you only hear the beating of the replacement propeller.
				Convoy disappears in direction 60°T.
				One destroyer runs in, stops for a long time, directly over us.  In the meantime we have gone in a circle, this has always proved to be the best for us.
		19.15		Came to a southerly course, sounds shifted astern and disappeared.
				As soon as I go to depth A +40 meters, both corvettes rush back again, stop and again one can hear the slow beating propeller sounds.

Sun and Moon Data 06.03.43

	- 26 -
		continued
		06.03.43
		21.15		Came to SW course, showed the stern.  That's when they finally give up, they rush off, but stop 6 minutes at the point of sighting.
		22.15		Sounds can no longer be heard, slowly went higher.
			SW 4, snow showers, very dark, Vis. 100 meters	Surfaced and set off a bit with E-motors.  Established fillings [tank levels] and repaired.
		23.48		After surfacing Radio Message 2322 sent:
				Contact lost 18.00 hours, square 4186, course 60°.  Gyro-compass and port clutch failed.
		23.31		Is Hornkohl is still approaching, or another?
				Radio Message 2230.
				If there is no contact on "Hopman-convoy", boats operating from the west continue searching on northeasterly courses and enemy speed 7-9 knots.  Former "Neuland boats" as ordered.
				Thank God, they still have them if Dauter [really] caught a destroyer.
				Ran after on one diesel.  I probably have little chance to approach with one diesel, because we are 6 hours back, however I want to try.  Possibly the clutch will become operable again.
		___________________________________________________________________________________
		07.03.43
		00.29	AK 4432	Radio Message 2155:
			SSE 4, snow showers, pitch black night	If there is no contact on "Hopman-convoy", boats operating from the west continue searching on northeasterly courses and enemy speed 7-9 knots.  Former "Neuland boats" as ordered.
		01.17		Short Signal from Hornkohl:
				Enemy in sight square AK 4253.
				and later course 45°, 9 knots.
		01.28		Radio Message sent:
				While sending bearing signals surprised by corvette in fog, 5 hour pursuit,  Gyro-compass in operation, clutch operates up to depth A +20 meters, in pursuit.
				Hopman.
				At depth, the shaft is apparently pushed inwards and the diesel then runs along.  The thrust bearing probably has too much play.
				Went slowly faster also with the port diesel.

	Sun and Moon Data 06.03.43
	Sun and Moon Data 07.03.43

	- 27 -
		continued
		07.03.43		The clutch works.
		03.48		Radio Message 1912:
				1.  Schamog take up ordered position in Group "Raubgraf".
				2.  Low fuel boats at Hopman-convoy break off so that square BD 29 can be reached with 5 cbm.
		04.00	AJ 4272	Now Hornkohl and Siegmann are there, later Massmannn hope to still gain contact.  The course was mostly reported as 40°.  If he wants to go to the North Channel, he must go to the east soon.  For Iceland he is already too far to the east.
			SSW 5, squalls, very dark
		08.00	AJ 4252
			SSW 4, snow squalls, Vis. up to 1 nm	High pressure air for torpedo aft blows very strongly, the closure at the high pressure distributor does not shut.
		10.35		Dived to repair the air installation and periscope.
		12.00	AK 1978	Day's run Surfaced      144.5 nm
				Submerged    11.6 nm
				165.1 nm
			North Atlantic
		12.43		3 depth charges far ahead to port approximately in 20°T.
		13.45		Surfaced, continued pursuit in direction 20°, because I suspect the convoy with depth charges.  Unfortunately bearing signals from Massmann were not heard.
		14.41		Radio Message 1158.  Disposition of Group "Ostmark" in patrol line ahead of the convoy.  By the type of disposition it seems Leadership expects an easterly course.
				For us Westmark boats NE-direction in accordance with Radio Message orders remains in effect.
		16.00	AK 1954
			W 8-9, Sea 7-8, snow showers, Vis. strongly changing
		17.54		Radio Message 1600.
				Möglich sighted convoy briefly AK 1847.
				My navigation is extremely poor because I had to steer with the magnetic compass for a long time.
		19.13		Corvette in sight (2000 meters), lies before the sea.  Moved off a bit, he did not follow me, however gave warning report on steamer wavelength.

Sun and Moon Data 07.03.43

	- 28 -
		continued
		07.03.43
		20.00	AK 1923	Radio Message sent:
			S 10, Sea 8, snow squalls, Vis. 200 meters - 5 nm	Square AK 1788 one corvette.  Sighting report on 600-meter wavelength, Sea 8, Vis. greatly changing.
				Hornkohl also heard the warning report and gave the reported position from the corvette.
				I suspect the corvette is damaged and has dropped far behind the convoy.  Thats why I'll leave it lying, the torpedoes will no longer steer.
				Continued to pursue.
		22.45		Radio Message 2153
				1.  Convoy possibly split into groups, which go to the east and continues to steer the old general course.
				2.  Group "Ostmark" in the morning of 8 March at 09.00 hours be in new patrol line from AK 2516-0269.  Direct operation on convoy only on particular orders.
				3.  Shoot even in bad weather.  The torpedoes will work.
				Because the patrol line for "Ostmark" continue to be positioned for an easterly course, it remains for us to search the area west therefrom.  I am still positioned behind the convoy, the seas allow no higher speed with the open watertight forecastle.
				Once again it is almost a full hurricane.
				The contact keeper broke off after 5 minutes.  Our corvette was reported twice more.
		24.00	W 12, Sea 9, squalls, Vis. up to 1 nm
		___________________________________________________________________________________
		08.03.43
		04.00	AK 1675	Now we have to be about at the same level as the convoy if it goes to the NE.
			W 11-12, Sea 9, Vis. 2 nm
				Christophersen's Radio Message was corrected to SE course.  That would have been the night-time zigzag.
		06.19		Radio Message 0532:
				1. "Christophersen":  Question: was the SE course was observed satisfactorily for a long time?
				2.  Question: does Leadership expect general course NE?
				Zetsche
				Those are the questions we all have on our minds.

	Sun and Moon Data 07.03.43
	Sun and Moon Data 08.03.43

	- 29 -
		continued
		08.03.43
		08.00	AK 1651
			W 9, Sea 8, overcast, Vis. 2-3 nm
		09.42		Radio Message 0837.
				1.  Leadership suspects Christophersen-convoy general course east.  Other part on old general course around 50°.
				2.  Christophersen immediately repeat last contact keeper report.
				I decide on the NE-part because there are enough boats in the east and we are positioned to the west.
		11.10		Balanced the boat.  Came to easterly course.
		12.00	AK 1486	Day's run Surfaced      185.5 nm
			W 6-7, high Swell, Vis. improving	Submerged      7.4 nm
				192.9 nm
			North Atlantic
		12.49		Radio Message 1220.
				Westmark boats and Ostmark boats operate on     "Möglich"-report, if there is no own enemy contact.
				The report from Möglich is not at hand however he must be in the east.
		14.11		Radio Message 1215:
				Möglich reports enemy steers NE-course at 12.11 hours.
				There we are positioned considerably far to the west, but also to the north. I still hope for the other northern part, which I can still meet when pursuing to the east.
		16.00	AK 2382
			SSE 4, rain, Swell
		16.55		Sighted a Boeing, that flew towards us at great range.  Into the cellar with a large down angle.  After a long time 2 bombs fell.  The aircraft had probably seen our diving location.
		18.00	Misty	Surfaced.
		18.27		Radio Message 1801 sent:
				Naval square AK 2457 dived before "Boeing".  26 cbm.
				Hopman

Sun and Moon Data 08.03.43

	- 30 -
		continued
		08.03.43
				This means that Leadership also has our position.  The convoy reports now lay more together in square 3550.
				Unfortunately I have only a little opportunity to join in at the convoy with my fuel.  I pursue the convoy on an ENE course.
		22.00	AK 2456
			SSE 5, rain showers, Sea 4
		21.10		Radio Message 1955:
				Request Bearing Signals from "Uhlig".
				Förster.
		24.00	AK 3373
			SSW 6, abating, Vis. 3 nm
		___________________________________________________________________________________
		09.03.43
		00.54		Radio Message 2146:
				Naval square AK 3596 forced to submerge by destroyer, overrun by convoy, pursuing in 90°, 23 cbm.
				Hornkohl.
				The convoy only seems to go to the east.  The reports are very mixed up and bearing signals do not come.
				Had expected the convoy to be on course 60° at 03.00 hours.  Now I can't get there during the night.
		03.28		Radio Message 0317:
				To boats:  Operate on the convoy.  Expect numerous independents behind the convoy.
		04.00	AK 3612
			SW 8, Sea 6, Vis. 2 nm
		06.38		Radio Message 0502:
				Naval square AK 3662 dived before destroyer, was overrun by convoy.  In pursuit in 60°.
				Hornkohl.
		08.00	AK 3663	Unfortunately my fuel is at an end.  However still want to try and hit something on the convoy route.  The stragglers will have turned off earlier to the east.  I will probably reach them best on a southerly course.
			SW 7, Sea 6, Vis. 1-2 nm
		08.30		Radio Message sent 0910:
				Naval square AK 3639 return transit on convoy route to "Zech".  21 cbm.
				Hopman.
		09.40		Because Control gives no counter order I come to course 190°.

	Sun and Moon Data 08.03.43
	Sun and Moon Data 09.03.43

	- 31 -
		continued
		09.03.43
		10.35		Recognition Signals exchanged with a boat positioned to the north of me, that followed me for a long time.
		12.00	AK 3696	Day's run Surfaced        257 nm
			W 8, Sea 7, strong squalls, Vis. medium, misty	Submerged    6.4 nm
				263.4 nm
			North Atlantic
				A new reconnaissance line is formed to the south, convoy is expected tomorrow.  Possibly we still have a chance.
		16.00	AK 3836
			SW 8, large seas, Vis. changing
		16.52		2 steamers in sight bearing 180°T.  Course west.
				Outgoing Short Signal:
				2 steamers square AK 3863, course west.
				By plotting for a while the steamers made hardly any speed, one must have stopped, the second course east.
				Before I give a new course by Radio Message, I want to have exact data.
				Am now positioned to the south and matched speed.  Because they both have quite similar appearance, (one has one more mast), we don't know if there is only one left.
				Another boat closes in from the south, which is then always closer then us.  I stay far off, because I want to avoid being sighted, so we do not draw aircraft unnecessarily.
		18.37		Radio Message 1805:
				Hopman attack and sink.  No regard for fuel.  If another boat is in the vicinity ask for contact reports.
				We are already two, this will work fine.  Hopefully the torpedoes will steer.
		20.00	AK 1743	As it got dark gradually closed in.  The second boat is in a hurry.
			WSW 7, overcast, misty, rain squalls
				I see at the moment only one steamer around 5000-5500 GRT.
		21.30		Am now in attack position, is it still a bit bright.
		21.44		When I am just about to initiate attack, the steamer blows up.  He must have had ammunition loaded forward.

Sun and Moon Data 09.03.43

	- 32 -
		09.03.43
				The boat must have shot at a large angle.
				Some time after the detonation, an impact with very high water column 600 meters next to the boat. Initially thought of as artillery- or bombing impact, then moved off a bit.
				The 2nd steamer came in sight to port.
		21.50		The weather is nasty, strong hail squalls changing with rays of moonshine.
		22.15		Maneuvered ahead, ran in to attack.
				During the approach there was a hail squall with visibility 50 meters.
		22.20		Because I do not want to cut across his bow, I broke off and came to a parallel course.  Now comes the bright moonshine, still it is better than absolutely no visibility.  Ran in, fan at 400 meters.  Because I did not know if the torpedoes would still steer, after my tragic experience in the Arctic, I took a narrow spread three-fan.
				2 hits, forward edge of the bridge and after cargo hold.  Steamer set out three boats, burned for and aft, stern settles away quickly.  In the boat several small detonations were heard.
		22.40		Steamer gave call sign "Wkyl and glv".
				Outgoing Radio Message:
				Order carried out:
				With 2 boats each 1 steamer sunk.
				Naval square AL 1753.
				Hopman.
				While going around the steamer it sank about 22.50 hours.
		23.05		Continued transit to the south.
		23.46		Radio Message 2201
				21.36 hours independent naval square AL 1763 sunk with 3 hits.  Course 90°.  6000 GRT.  12 plus 6 torpedoes, 190 cbm.
				Lange.
				So it was Lange.  He still had so many torpedoes, so he was in such a hurry.
		24.00	AL 1759
			SW 7, Swell, hail showers, moonshine, Sea 6	As always, the wind comes from ahead.
		___________________________________________________________________________________

Sun and Moon Data 09.03.43

	- 33 -
		10.03.43
		01.45		Our steamer was a bit bigger, because he had a longer foreship and a second mast forward - estimated 6000 GRT.
				Outgoing Radio Message:
				In Serial No. 807 freighter 6000 GRT sunk 22.35 hours naval square AL 1753 with 2 hits.  4 plus 2 torpedoes.
				Hopman.
				Came to a SE-course to reload a tube with our repaired torpedo, then continued transit.
		04.00	AL 1923
		0x.00		Cracked cylinder head starboard diesel cylinder 2.
		08.00	AL 1952
			SW 6, hail squalls, high Swell, Vis. 200 meters - 2 nm	The others are still actively engaged at the convoy.
		10.28		Dived to replace the cracked cylinder head, at the same time a torpedo had to be taken up in the stern compartment.
		12.00	AL 1945	Day's run Surfaced       156 nm
				Submerged    4.6 nm
				160.6 nm
		14.30		Surfaced.  Continued transit to the south.
		15.26		Radio Message orders.
				Switch to Diana Circuit.
		16.00	AL 1975
			W 10, Sea 8, squalls, Vis. medium
		17.50		Hunger detected a convoy in BD 2354 and later reported course 80°, 10 knots.
				If the convoy holds course, I can't come up with one engine and the little fuel.
		18.50		Radio Message 1425:
				The reconnaissance line Group "Neuland" received operational orders.
				Radio Message 1642:
				1.  Zech further return transit boats will arrive, the approach of the first 2-4 about on 12 March.
				Boats take over at most 23 cbm each.  Have each 2nd boat setting off report the progress of the supply.
				2.  "Köhler" after setting off report inventory of "Zech".

Sun and Moon Data 10.03.43

	- 34 -
		continued
		10.03.43
				Further reports from the convoy give the same situation, it steers 70-90° and 9-10 knots.  Several boats have contact.
		20.00	AL
			W 8, Vis. medium, showers
		24.00	AL 4183
			W 5, high Swell, moonshine
		___________________________________________________________________________________
		11.03.43
		04.00	AL 4426
		08.00	AL 4459	The boats seem to be doing well at the convoy several success reports arrive.
				It seem to be two parts of the convoy.  Unfortunately I cannot get there.
		12.00	AL 4221
			WNW 5, light squalls, except for showers Vis. good	Starboard diesel is in service again, in exchange the port diesel stutters quite significantly.
				Probably cylinder 4 port also has a crack, work will begin immediately.
				Day's run Surfaced        119 nm
				Submerged    6.6 nm
				125.6 nm
			North Atlantic
				The convoy must have been delayed, possibly I can still get there.  I try with diesel-electric HF.
		16.00	AL 4745
		17.00		Föster reports hit on an independent square AK 9621, course 25°, 10 knots. [14.08 hours]
				I cannot imagine that a torpedoed steamer runs at 10 knots.  Operated on the given course, because Föster has let him go.
		20.00	AK 6999
			W 5, snow showers
		21.05		Radio Message 1645:
				At 16.00 [15.00 hours in U-359 KTB] hours naval square AK 9625 was overrun by convoy on northeasterly course in naval square AK 9625.
				Förster.
				If the convoy holds course and my diesel is in operation soon, I can reach the line.
				Cylinder head had a small crack, did not leak water, the exhaust gas valve was completely carbonized.
				A new valve was installed.
				Am operating on the convoy.

	Sun and Moon Data 10.03.43
	Sun and Moon Data 11.03.43

	- 35 -
		continued
		11.03.43
		23.24		Short Signal from Förster.
				2 steamers square AK 9673 course 50°, 12 knots.
		23.30		My 2nd diesel is in service again.
				Tried to get together with Föster and advance at higher speed to the south.  Should get close about 03.30 hours, if they do not zigzag.
		24.00	AL 7141
			W 4, medium Swell, isolated hail showers, otherwise Vis. good
		___________________________________________________________________________________
		12.03.43
		03.10		Sent Short Signal:
				Request bearing signals from Förster.
				Hopman.
				Searched in the direction of the assumed courses.
		04.00	AL 7411
			WSW 4, snow and hail showers, except for showers Vis. good
		05.43		Radio Message 0521:
				Short Signal 0424 from Föster:  Have lost contact since 23.40 hours, enemy steered 50°, speed 12 knots.  Naval square AK 9915, course 200°, speed 5 knots.
				Pity, otherwise we could have gotten them.
		08.00	AL 7411
				Broke off the search, because with the high enemy speed a meeting seems unlikely.
				Continued transit to the supplier.
		11.05		Balanced the boat.
		12.00	AK 9662	Day's run Surfaced        150 nm
				Submerged     2.8 nm
				152.8 nm
			North Atlantic
		16.00	AK 9686
			W 5-6, Vis. good
		20.00	AK 9952	The supplier was to go to Deetz, however has not found him.

	Sun and Moon Data 11.03.43
	Sun and Moon Data 12.03.43

	- 36 -
		continued
		12.03.43
		23.46		Radio Message 2251:
				Zech and Deetz be at ordered meeting point naval square 3477 tomorrow at lightness.  Deetz request bearing signals according to the situation.
		24.00	AK 9987
		___________________________________________________________________________________
		13.03.43
				Dauter also goes to Zech.
		04.00	BD 3242
		08.00	BD 3274
		11.20		Stock requests bearing signals from Zech.
				Bearing is very inexact due to strong interference.
				According to that Zech is further to the north.  I believe that he again runs in his ordered square.
		12.00	BD 3541	Day's run Surfaced        152 nm
			W 2, light Swell, clear	Submerged    2.8 nm
				154.8 nm
			North Atlantic
				Attempt to meet Zech today before darkness.  I lead him to the north.  By the bearings he must be 30 nm too far to the north.
		16.00	BD 3482
			WSW 2, except for rain Vis. good
		18.41		Met Dauter at the supply place.  He came from the south.  We both search to the north.  Because visibility  has strongly decreased and bearing signals were already given today and the barometer is falling, I request bearing signals.  Ran on the bearing beam, Dauter held on.
		20.00	BD 4371
			Vis. 1 nm
		21.12		2 U-boats in sight.
		21.30		Supplier in sight.  Is in square 2666.  Would never have found him there.  Supply is first possible tomorrow.  Bearing signals are intended at 09.20 hours.  On request Zech gives me the course for the night, which brings us to the ordered square 3477.  Over night ran with E-motors on the same course.
		24.00	BD 2666
			Freshening

	Sun and Moon Data 12.03.43
	Sun and Moon Data 13.03.43

	- 37 -
		continued
		14.03.43
		04.00	BD 3447
			SW 3, misty to fog
		08.00	BD 3472
		09.20		Bearing signals from Zech are barely heard and were strongly distorted.
				Inexact bearing 320°T, far off.
				Ran on that, bearing signals broke off.
		12.00	BD 2669	Day's run Surfaced  145 nm
			Freshening, SW 6, rain, misty, Swell	If Zech cannot hold position in this weather, we cannot find him.
				Dauter requested bearing signals.
		12.43		Supplier in sight with Hornkohl.
		13.59		Radio Message 1348:
				While supplying "Zech" has transmitted too much.  "Zech" be at supply point 12 hours each day.  No bearing signals.
		16.00	BD 2693
			WS 8, fog, high Swell, abating
		20.00	BD 2696	Now stayed close to Zech, so he will not leave me again.
		23.45		Dauter joins us.
		24.00		Square BD 2933
				Proceeded with Zech.
		___________________________________________________________________________________
		15.03.43
		04.00	BD 3714
		08.00	BD 3717
		12.00	BD 3741	Day's run Surfaced  47.5 nm
			SW 6, high Swell, Vis. improving
			North Atlantic
		16.00	BD 3725
		20.00	BD 3725
		24.00	BD 3726
			WSW 7, rain squalls, high Swell
		___________________________________________________________________________________

	Sun and Moon Data 14.03.43
	Sun and Moon Data 15.03.43

	- 38 -
		16.03.43
		04.00	BD 3731	Hornkohl is left behind.
		08.00	BD 3731	We drift all day long athwart the seas.  The large boat [U-Zech] lies badly and so we others must maneuver constantly.
			W 8, squalls, rain, high Swell
		12.00	BD 3732	Day's run Surfaced  16.5 nm
		16.00	BD 3733
		20.00	BD 3733
		21.16		Convoy reported in BD 1538, pity that the fuel has run out.
		24.00	BD 3733
			W 2, medium Swell
		___________________________________________________________________________________
		17.03.43
		04.00	BD 3733	The barometer is falling again, so I asked Zech to get ready as soon as possible.
			Abating, Swells drop as well
		08.00	BD 3733	Zech prepared.  However could not pump the hose up [with air] because the tap at the end fitting was accidentally left open.
				So, after fishing out the buoy, I had to hoist all the weight with the capstan. It was almost impossible to get all of the buoys on deck. The first loose end of the hose had wrapped around the buoy line because it was not full of air. With a lot of work and time we have it ready.
		11.05		Began taking over.
				Hornkohl requests bearing signals, he searches for us in the ordered square.
		12.00	BD 3733
			SSW 1-2, Vis. good, light to medium Swell
			North Atlantic
		12.18		Fuel oil take over ended.  Cast off.  At first the hose, under air pressure, drifted beneath the boat, because the supplier hardly made way and we were pretty close in echelon.  Had the hose made a bit stiff to plug in, in so doing the harness came free.
		14.10		Balanced the boat.
		14.35		Return transit.
		16.00	BD 3815

	Sun and Moon Data 16.03.43
	Sun and Moon Data 17.03.43

	- 39 -
		continued
		17.03.43
		20.00	BD 3861
			E 1, Vis. good
		24.00	BD 3944
		___________________________________________________________________________________
		18.03.43
		00.30		Supply report from Zech.
		04.00	BD 3957
			SW 4, Sea 3, Vis. good
		08.00	BE 1777
		12.00	BE 4122	Day's run Surfaced        156 nm
				Submerged     1.3 nm
				157.3 nm
			North Atlantic
		16.00	BE 4139
		20.00	BE 4251
			SSW 2-3, Vis. good
		22.50		Radio Message 2107
				Hornkohl, Hopman, Dauter, Zurmühlen, Haupt switch to Coastal Circuit tomorrow at 08.00 hours.
		24.00	BE 4268
		___________________________________________________________________________________
		19.03.43
		04.00	BE 4397
		06.32	BE 5412	Patrol vessel ahead to port on southerly course, high speed.
			ESE 1, rain showers, Vis. changing
		06.35		Dived.
		07.35		Surfaced.  Continued transit.
		08.00	BE 5412
		10.13		Radio Message 0833:
				08.30 hours convoy, 6737, air escort.  Course 170°, 9 knots.
				Kruschka.
				Unfortunately he gave no large square, I do not believe he is in our vicinity.
		12.00	BE 5429	Day's run Surfaced       210.5 nm
				Submerged         3 nm
				213.5 nm

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

	- 40 -
		continued
		19.03.43
		16.00	BE 5541
		20.00	BE 5558	Haupt sighted a steamer behind us in square 1693.
			Wind calm, Sea 1, Vis. clear
		24.00	BE 5596
		___________________________________________________________________________________
		20.03.43
		04.00	BE 5922
				Radio Message:
				Own "Kondor" overdue.  Had last reported Kruschka-convoy in naval square BE 9126.  If possible, without a large detour, inbound and outbound boats pass by.
		06.x5		Am going to search for the Kondor crew on course for square 91.  The position is very uncertain.  Because no emergency report is at hand, the aircraft could have gotten very far, I will run through the area only once for fuel reasons.
		08.00	BE 5962
			E 1-2, cloudy, Vis. good, light high haze
		12.00	BE 6772	Day's run Surfaced  158 nm
			North Atlantic
		16.00	BE 9161	Broke off the search, continued return transit.  Passed 15°W.  Because of the very good visibility, continued on the surface.
		20.00	BE 9851
			ENE 1-2, cloudy, light rain
		24.00	BE 9317
			SE 4, overcast, Vis. god
		___________________________________________________________________________________
		21.03.43
		02.20	BE 9327	U-boat on westerly course sighted bearing 60°T, initially turned away, then turned towards and ran after.  The boat dived, suspect own boat.  Continued on a zigzag course at high speed out of caution.
		04.00	BF 7126

	Sun and Moon Data 19.03.43
	Sun and Moon Data 20.03.43
	Sun and Moon Data 21.03.43

	- 41 -
		continued
		21.03.43
		07.00		Because the entry route is not known:
				Outgoing Radio Message:
				Request return harbor.
				Hopman.
		07.56	BF 7126	Crash dive for Halifax on southerly course altitude 800 meters, 8 nm away.
		08.00	SSE 3, lightly cloudy, Vis. very good	Because the visibility is very good and the Sea State is light I also continue by day on the surface.
				Radio Message:  Return harbor St. Nazaire.
		12.00	BF 7215	Day's run Surfaced       247 nm
				Submerged      2 nm
				249 nm
			Bay of Biscay
		13.55	BF 7225	Crash dive for Halifax in course 70°, 8 nm away.  Altitude 600 meters.
		14.54	BF 7234	Crash dive for Halifax or Shörling [Sunderland?] on course 30°, 4 nm away, altitude 400 meters.
		16.12	BF 7335	Crash dive for Halifax on course 270°, 4 nm away.  Altitude 400 meters.
			SSE 3, lightly cloudy, Vis. very good
		17.01		3 detonations bearing 160°T, far off.
		17.27		2 detonations bearing 160°T, far off.
		19.00		Outgoing Short Signal:
				Position 36 hours off meeting point with escort.
				Hopman.
				The prediction of the Biscay weather makes it easier to fix the run in time. I suppose I can proceed on the surface again tomorrow.
		20.00	BF 7321
		22.03	SE 2, lightly cloudy, bright full moon, flat sea	6 detonations bearing 160°T and short fiery glow observed.
		24.00	BF 8113
		___________________________________________________________________________________
		22.03.43
		01.48	BF 8123	Crash dive for Sunderland on course 30°, altitude 500 meters, close range.
				Continued submerged, because the bright moonlit night provided more possibility of surprise, then proceeding by day.

	Sun and Moon Data 21.03.43
	Sun and Moon Data 22.03.43

	- 42 -
		continued
		22.03.43
		04.00	BF 8132
		07.00	Light early fog, mirror flat sea	Surfaced, continued on.
		08.00	BF 5873	Hüttemann is bombed and requests for fighter protection.
			Fog rises quickly	That was probably the detonations yesterday.  If he needs help, I can be with him soon.
				However afterwards he reports he is clear to dive again.
				In 40°T a strong smoke cloud, later a vessel with a high superstructure in sight.
				Southerly course, about 6 nm away in square BF 5895.  Vessel is probably a large fishing trawler.
		12.00	BF 5678
			SE 1, flat sea, light Stratus deck, Vis. very good	Day's run Surfaced      163 nm
				Submerged    32 nm
				195 nm
			Bay of Biscay
		16.00	BF 5898
		16.20	BF 5899	Crash dive for Bristol Beaufort, altitude 900 meters, 5 nm away course 180°.
				Continued submerged, because I an just off the objective point.
		16.49		2 detonations in approximately 150°T, far off.
		18.30		1 detonation in approximately 150°T, far off.
		20.00	BF 6777
		21.00	NE 1, flat sea, Vis. good, bright moonlight, light Stratus deck	Surfaced, continued transit.
		23.15		Reached objective point.
		24.00	BF 6776
		___________________________________________________________________________________
		23.03.43
		04.00	BF 6731
				Am probably  positioned at the meeting point 10 minutes early.
		06.44		Sperrbrecher in sight.
		06.52		Taken in convoy.

	Sun and Moon Data 22.03.43
	Sun and Moon Data 23.03.43

	- 43 -
		continued
		23.03.43
		10.30		Anchored off the entrance to St. Nazaire.
		12.00	St. Nazaire Roadstead.
				Day's run Surfaced      200 nm
				Submerged    15 nm
				215 nm
		15.30		Weighed anchor.
		16.00		Made fast in the lock.  Reported to Flottillenchef.
		17.10		Made fast Bunker 13 b.
				1.
				The heavy Sea State impacted the operation significantly.  The changing visibility conditions, hail squalls and driving snow did not mean anything special because the crew was accustomed to it.
				2.
				It is a matter of concern that in heavy seas the boat was sometimes not easy to hold with the bilge pumps, in one case even had to switch to E-motors to get the diesel bilge pumped out.
				3.
				The alertness of the convoy was significantly less than observed previously in the Arctic.  Once locating by destroyers was suspected.
				4.
				The new diesel corvettes now seem to have a special propulsion gear (E-motors) for listening pursuits.  The sounds of the diesel are very similar to the U-boats.
				5.
				It is noteworthy, that when meeting other U-boats, the boats were always first recognized by the black rain hats and raincoats, before the boat could be seen.
				Total distance covered  Surfaced      5952 nm
				Submerged   282 nm
				6234 nm
				On 23 March 1943
				K.Kapt. and Kommandant.

Sun and Moon Data 23.03.43

 

	Enclosures to U-405's KTB - click on the text at left to proceed to the document
Radio	Excerpt of the radio log
Chart	Track chart covering the entire patrol

 

	Comments of the Befehlshabers der Unterseeboote
	on the K.T.B. "U 405" from 16.12.42 - 23.3.43.
	A well executed first Atlantic patrol of the boat previously deployed to the Norwegian Sea.
	The sinking of three steamers brought the boat a beautiful success.  Otherwise nothing to note.
	Accredited Successes:
	1 steamer        9000 GRT sunk.
	1 steamer        9000 GRT sunk.
	1 steamer        6000 GRT sunk.
		For the Befehlshabers der Unterseeboote
		- The Chief of the Operations Department -

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