U-537 - 1st War Patrol

Translation by Jerry Mason with the help of Robert Derencin

Departed
Date
Arrived
Date
Days at Sea
Kiel
18 September 1943
Bergen
23 September 1943
6
Bergen
30 September 1943
Lorient
8 December 1943
70

 

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

Ships Hit
None.
Note:  The positions in the table above and in the Google Earth patrol summary are derived from the KTB and in many cases do not match those set forth in authoritative references such as Jürgen Rohwer, Axis Submarine Successes of World War Two or the Uboat.net website.  The goal here is to present the picture relative to the U-boat and not the absolute position that the ship was attacked or sank.


 
- 1 -
 
           
           
           
           
           
           
           
                                    
           
     
                     K  r  i  e  g  s  t  a  g  e  b  u  c  h
                   -=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 
                                           of
 
                      Unterseebootes    "U  5  3  7".
                    -=-=-=-=-=-=-=-=-=-=-=-=-=-
 
           
      Kommandant        : Kapitänleutnant    S  c  h  r  e  w  e  
           
      Beginning              : 27 January 1943.  
           
      Concluding            :  8 December 1943.  
           
           
                                                -.-.-.-.  
           
     
Distribution           :    
Oberkommando der Kriegsmarine Copy No. 1 and 2
O.K.M. 2.Skl./B.d.U.-Op.     "      " 3
Kommandierender Admiral der Unterseeboote     "      " 4
Führer der Unterseeboote West     "      " 5
Führer der Unterseebootsausbildungsflottillen     "      " 6
27. Unterseebootsflottille     "      " 7
10. Unterseebootsflottille     "      " 8
 
           
     
Enclosures            :    
1 Track chart To     "      " 2,3,4,5,8.
1 Sketch (Deployment of the weather transmitting gear)   "      "      " 2,3,4,5,8.
1 Excerpt of the Radio Log   "      "      " 2,3,4,5,8.
11 Barograph strips   "      "      " 5.
1 K.T.B.-Maschine   "      "      " 3.
 
           
           
        © U-boat Archive 2014  - all rights reserved  
Click the flag to view the above page from the original German KTB
 
- 2 -
 
           
           
           
           
    27.01.43      
    11.00 Hamburg Finkenwärden Commissioning at the Deutschen Werft.  
    28.01.43       " Role exercises.  
    29. - 30.01.43       " Training cruise on the Elbe.  
    31.01.43       " Took over the boat.  
    01. - 02.02.43   Transit:  Hamburg-Brunsbüttel-Kiel.  
    03. -15.02.43 Kiel Driven for the UAK [Unterseebootabnahmekommando].  
    16. - 19.02.43 Kiel KMW [Kriegsmarinewerft] to install a new gyro compass cooling pump.  
    20.02.43 Kiel-Sonderburg To Sonderburg for sound trials.  
    21.02.43 Sonderburg-Kiel After completion return to Kiel.  
    22.02.43 Kiel-Wik Periscope repairs.  
    23.02.43 At sea From Kiel full throttle cruise to the east.  
    24. - 26.02.43 Stettin Engine repairs.  
    27. - 28.02.43 At sea Transit from Stettin to Danzig.  
    01. - 03.03.43 Danzig Independent training.  Due to weather conditions measured mile cruise not possible.  
    04. - 05.03.43 Danzig Dry-docked for propeller repair.  
    06.03.43 Danzig Completed measured mile cruise.  
    07. - 28.03.43 Danzig Lay time in Danziger Werft.  Port vibration dampener, lubricating oil pumps replaced and installation of the Fu.M.G. and Fu.M.B. systems.  Work and draining service.  
    29.03. - 19.04.43 Hela Performed for the UAK [Unterseebootabnahmekommando].  
    20.04.43 At Sea Artillery shooting and depth charge training.  
    21.04.43 Danzig TEK [Torpedoerprobungskommando].  
    22. - 30.04.43 Danzig Torpedo shooting with the 25. U-Flottille.  
      On off days Fu.M.G. repairs.  
    01. - 11.05.43 Gotenhafen    
    At sea Carried out Tactical Training.  
    12. - 13.05.43 At sea Transit to Stettin.  
    14.05.43 Stettin-Swinemünde Transit to Swinemünde.  
    15. - 17.05.43 Swinemünde Anti-aircraft shooting with the 1/7. Fla.K.S. [Flak-Kampfschule].  
    18.05.43 At sea Transit:  Swinemünde-Kiel-Sonderburg for sound trials.  
           
           
           
 
 
- 3 -
 
           
           
           
           
    19.05.43 At sea Transit:  Sonderburg-Kiel-Hamburg.  
    20.05.43 Hamburg Cleared the boat.  
    21.05.43 Hamburg Shipyard conference.  
    22.05. - 03.07.43 Hamburg Began final adjustments and overhaul Deutsche Werft Hamburg.  
        Final adjustments and overhaul  
    04. - 06.07.43 Hamburg Outfitting the boat for the Front.  
    07.07.43 Hamburg-Kiel Transit:  Hamburg-Kiel.  
    08. - 14.07.43 Kiel Kriegsmarine Werft Kiel to install the 2 cm quadruple gun.  
      Engine work.  
        Transit:  Kiel-Swinemünde.  
    15. - 19.07.43   Anti-aircraft shooting with the 1/7. Fla.K.S. Swinemünde and independent training.  
    20.07.43 Kiel Transit to Kiel.  Outfitting for a special task in the KMW.  
      Overhaul of the quad 2 cm gun damaged while diving.  
    25.07.43 Kiel Damage to the boat from enemy air attack.  Aircraft bomb near the hull (main ballast tank 1 and battery).  Battery replacement necessary.  
    26.07. - 10.09.43 Kiel Shipyard period.  
    11. - 17.09.43 Kiel Outfitting for the front.  
    18.09.43      
    08.00   Put to sea for 1st war patrol.  Task:  Deployment of a weather transmitting gear on the Labrador coast.  Operations in accordance with Atlantic Order No. 54.  
    11.20   In convoy with "U-848" transit to Kristiansand.  
    12.00 W 2, Sea 1, 10/10 low overcast, 1008 mb    
    15.30   Port thrust bearing runs hot.  Thrust plate had cracked.  
    16.00 W 2, Sea 1, 1008 mb Continued on starboard engine.  Determined that the damage cannot be repaired by on board means.  
        Calling at Bergen is necessary.  
    20.00 W 1, Sea 0, 1010 mb    
           
    19.09.43 Kattegatt, Skagerrak    
    00.00 W 2, Sea 1, 5/10, 1011 mb    
    04.00 W 3, Sea 2, 1012 mb    
    08.00 W 3, Sea 2, 1012 mb    
    12.00   Day's run:  Surfaced 180 nm  
    16.00 W 3, Sea 3, 1010 mb    
    16.54   Aircraft!  Aircraft circles on the horizon.  
    19.24   Aircraft out of sight.  
    20.00 W 5, Sea 4, 1005 mb Through the Skagerrak without escort in formation with "U-848".  
           
           
Sun and Moon Data 18.09.43
Sun and Moon Data 19.09.43
 
- 4 -
 
           
           
           
           
    20.09.43 Skagerrak    
    00.00 W 6, Sea 5, 7/10 low overcast, rain, 1002 mb    
    04.00 SW 6, Sea 5, 999 mb, +11°C    
    08.00 SW 7, Sea 6, 992 mb, +10°C    
    12.00 SW 7, Sea 6, Vis. 10 nm, 988 mb, +10°C Day's run:  Surfaced 141 nm  
    15.00 Kristiansand-Marviken Made fast.  
           
    21.09.43 Coast of south and west Norway    
    06.00 Kristiansand Cast off for transit in convoy with M 427, U-848 to Egersund.  Running through to Bergen is not possible because transit along the coast of Norway was not allowed.  
    08.00 NW 4, Sea 3, 3/10 high overcast, Vis. 10 nm, 992 mb    
    12.00   Day's run:  Surfaced 57 nm  
    15.25   Aircraft!  
    15.35   Aircraft was recognised as own.  
    16.00 Off entrance to Egersund    
    16.40 NW 5, Sea 4, high NW-Swell, 998 mb U-848 is released from convoy for independent transit to the west.  
    17.10 Egersund Made fast.  
           
    22.09.43 West coast of Norway    
    06.00   Cast off Egersund for transit in convoy with M 427 for Haugesund.  
    11.15 NW 3, Sea 2, 3/10, high overcast, Vis. 10 nm, 1004 mb Air danger!  
    12.00 NW 3, Sea 2, showers, Vis. good Day's run:  Surfaced 84 nm  
    12.28   Air danger ended.  
    15.00 Made fast Haugesund Escort for Bergen first expected on 23 September.  
           
    23.09.43 West coast of Norway    
    07.00   In convoy with M 411 in the Archipelago Route for Bergen.  
    08.00 AN 2961    
      NNW 3, Sea 2, showers, Vis. up to 4 nm, 1006 mb    
    12.00 AN 2483 Day's run:  Surfaced 84 nm  
           
    30.09.43      
    08.00 - 12.30   Sea trial without issues, crash dive for training.  
    12.35 Bergen Made fast.  
    16.00   In convoy (UNITAS) departed for 1st patrol.  
    19.15   Released from convoy at Hellesøy.  
    20.00 SW 5, Sea 4, 10/10 low overcast, showers, Vis. up to 6 nm, 997 mb Set off from the coast.  
      Proceeding to square AL submerged by day, only surfacing to ventilate the boat and nights surfaced to charge the battery, or favorable weather conditions, meaning no danger of surprise by air.  
    21.00   Short wave receiver out of service.  
           
    01.10.43 Shetlands corner    
    00.00 AF 8784    
      SW 4, Sea 3, totally overcast, rain, Vis. up to 4 nm, 995 mb, +14°C    
           
           
           
Sun and Moon Data 20.09.43
Sun and Moon Data 21.09.43
Sun and Moon Data 22.09.43
Sun and Moon Data 23.09.43
Sun and Moon Data 01.10.43
 
- 5 -
 
           
           
           
    continued      
    01.10.43      
    04.00 AF 8745    
      SW 8, Sea 6, high Swell, 10/10, rain, hail, 990 mb, Vis. 3 nm    
    05.14   Dived to proceed submerged, depth A -40 meters.  
    07.20   Morning twilight.  
    08.00 AF 8741    
    12.00 AF 7935 Day's run:   Surfaced      103 nm  
                          Submerged     12 nm  
    13.45   Surfaced, ventilated the boat.  
    14.37   Dived, continued submerged at depth A -40 meters.  
    16.00 AF 7697    
    20.00 AF 7686    
    20.10   Evening twilight.  
    21.05   Surfaced.  Proceeded on the surface charging the battery.  
    21.34   White light glow bearing 50°T.  
      Must be an outbound Swede, because I am passing the Swedish Route.  
    21.46   Detection on Wanze, dived.  
    22.13   Surfaced.  Steamer comes out quickly.  Neutral markings are distinguished, not the name, is illuminated over the entire deck.  Range = 1000 meters.  
      The detection was a false, only occurred together with the Swedish steamer.  
        Set off behind the steamer and again on course.  
    22.35   Steamer (light glow) out of sight bearing 220°T.  
           
    02.10.43 Norwegian Sea    
    00.00 AF 7645    
      NNE 4, freshening, Sea 3, 10/10 low overcast, rain, Vis. 3 nm, 985 mb, +12°C    
    02.30 Remained on the surface after completing charging because with the prevailing weather conditions surprise by enemy aircraft is not to be expected.  
    04.00 AF 7534    
    06.25 NNE 8, Sea 7, high Swell, low overcast, Vis. 3 nm, 979 mb, +12°C Dived to proceed submerged at depth A -40 meters.  
    07.25   Morning twilight.  
    08.00 AF 7284    
    12.00 AF 7276 Day's run:   Surfaced      92 nm  
                 "       Submerged   48 nm  
    13.57   Surfaced to ventilate the boat and for a navigation fix.  
    14.32   Dived, continued at depth A -40 meters.  
    16.00 AF 7247    
    20.00 AF 7165    
    20.20   Evening twilight.  
    20.59   Surfaced, proceeded on the surface, charging the battery.  
           
    03.10.43 Norwegian Sea    
    00.00 AF 7124    
      NNW 4, Sea 3, low overcast, isolated showers, Vis. 2 nm, 1003 mb, +9°C    
    04.00 AE 6996    
      WNW 3, Sea 2, 5/10, Vis. 4 nm, 1004 mb    
    04.15   Battery charging ended, dived.  Proceeded submerged at depth A -40 meters.  
    07.40   Morning twilight.  
           
           
Sun and Moon Data 01.10.43
Sun and Moon Data 02.10.43
Sun and Moon Data 03.10.43
 
- 6 -
 
           
           
           
    continued      
    03.10.43      
    08.00 AE 6992    
    08.05   Sound bearing 229°T (fast running turbine).  
    09.23   Went to periscope depth.   All around sweep taken.  Patrol vessel group, consisting of 2 destroyers and 3 other vessels, avoided.  
        Course 30°, range = 10000 meters, broad target angle.  
    11.40   Went to depth A then moved off to the west.  
        Last sound bearing in 15°T.  
    12.00 AE 6959 Day's run:   Surfaced       69 nm  
               "          Submerged   38 nm  
    14.17 SE 4, Sea 3, long Swell, overcast, Vis. 12 nm, 999 mb Surfaced to ventilate the boat.  
    14.27   Detection on Wanze 170 cm, tone 400 Hz.  
        Dived, proceeded submerged at depth A -40 meters.  
    16.00 AE 6957    
    20.00 AE 6948    
    20.34   Evening twilight.  
    22.04   Surfaced, proceeded on the surface, charged the battery.  
           
    04.10.43 North Atlantic    
    00.00 AE 6891    
      ENE 6, Sea 5, 8/10, light showers, Vis. 5 nm, 990 mb, +4°C    
    04.00 AE 9132    
      ENE 7, Sea 5, high Swell, 8/10 low overcast, rain, Vis. 4 nm, 989 mb, +3°C    
    05.00   Detection on Aldanay [typo Alderney], about 10 cm, tone 400 Hz.  
        Dived, proceeded submerged at depth A -40 meters.  
    07.00   Morning twilight.  
    08.00 AE 9126    
    12.00 AB 9124 Day's run:   Surfaced       86 nm  
               "          Submerged   52 nm  
    13.56   Surfaced to ventilate the boat.  
    14.29   Dived, proceeded submerged at depth A -40 meters.  
    15.56   Surfaced to take a navigation fix.  
    16.00 AE 9123 Dived.  
        Difference between dead reckoning and actual position after a navigation fix:  73°T, 28 nm.  
    19.50   Evening twilight.  
    20.00 AE 9125 Short wave receiver is in service again.  
    22.08   Surfaced.  Proceeded on the surface with battery charging.  
           
    05.10.43 North Atlantic    
    00.00 AE 9118    
      NW 1, light Swell, 4/10, Vis. 5 nm, 1000 mb, +3°C    
    01.13 AE 8339 Detection on Wanze, 140 cm, tone 400 Hz, dived.  Went to depth A -40 meters.  
    02.35   Surfaced.  
    03.31 AE 8361 Detection on Wanze, 140 cm, tone 400 Hz.  
        Dived.  
    05.10 S 3, Sea 2, 3/10, Vis. 4 nm, +3°C Surfaced.  
    07.15   Morning twilight.  
    08.00 AE 3873    
    08.06 ESE 4, Sea 3, overcast, Vis. 10 nm, +3°C Dived.  Proceeded submerged at depth A -40 meters.  
    11.33   Incoming Radio Message 2305/4/78:  On 5 October switch to Ireland Circuit at 08.00 hours.  
    12.00 AE 8377 First Program Time on Ireland Circuit.  
      SW 4, Sea 3, overcast, Vis. 10 nm, 996 mb, +5°C Day's run:   Surfaced       74 nm  
             "          Submerged   46 nm  
           
           
           
Sun and Moon Data 03.10.43
Sun and Moon Data 04.10.43
Sun and Moon Data 05.10.43
 
- 7 -
 
           
           
           
    continued      
    05.10.43      
    15.02   Surfaced.  No flying weather.  
      Because detections were received during the previous night, night enemy air can be expected again.  With the momentary favorable weather situation it is not expected so I will continue the transit on the surface with battery charging.  
    16.00 AE 8533    
      ENE 6, Sea 5, freshening, medium E-Swell, Vis. 5 nm, low overcast, rain, 997 mb +8°C    
    20.00 AE 8555 Evening twilight.  
      NE 7, Sea 6, low overcast, showers, Vis. 4 nm, 979 mb, +8°C    
           
    06.10.43 North Atlantic    
    00.00 AE 8573    
      NE 8, Sea 7, 980 mb    
    04.00 AE 8499    
    07.35 N 8, Sea 7, very high Swell, Vis. 3 nm, low overcast, 985 mb, +4°C [There is no entry here.  Perhaps the flooded attack periscope entry below was meant to be on this line]  
    08.00 AE 8746 Attack periscope flooded.  
      N 6, Sea 4, fair, 3/10, Vis. 8 nm, high Swell, 990 mb, +8°C    
    12.00 AE 7998 Day's run:   Surfaced      150 nm  
               "          Submerged      9 nm  
    13.20   Dived, proceeded submerged at depth A -30 meters.  
    16.00 AL 3123 Overhaul of the attack periscope.  Damage recognized, however cannot be corrected in hours.  
    20.00 AL 3121    
    20.15   Evening twilight.  
    22.03   Surfaced.  Proceeded on the surface with battery charging.  
           
    07.10.43 North Atlantic    
    00.00 AL 3111    
      WSW 5, Sea 4, long Swell, low overcast, Vis. 4 nm, 998 mb    
    01.54   Incoming Radio Message 2020/6/128:  2)  Give passing report on arrival in square AL.  
    04.00 AL 2222    
      WSW 4, Sea 3, overcast, showers, Vis. 3 nm, 1003 mb, +7°C    
    07.47   Outgoing Short Signal:  (followed procedure outside the beat frequency gap).  Have passed 20°W to the west.  
    07.50   Morning twilight.  
    08.00 AL 2133    
      WSW 3, Sea 3, 3/10, Vis. 10 nm, 1002 mb, +7°C    
    09.09   Repeated Short Signal of 07.47 hours because no confirmation followed.  
    12.00 AL 2122 Day's run:   Surfaced       95 nm  
      SW 4, Sea 3, low overcast, rain, Vis. up to 10 nm, 1000 mb, +7°C        "          Submerged   24 nm  
    16.00 AL 2111    
      SSE 5, Sea 4, overcast, rain, Vis. 8 nm, 990 mb    
    20.00 AL 1226    
      SSE 4, Sea 5, low overcast, Vis. 3 nm, 986 mb, +10°C    
    20.30   Evening twilight.  
    20.40   Short Signal of 07.47 hours is sent once again because there was still no confirmation.  
    22.17   Incoming Radio Message 2125/7/152:  Schrewe has passed 20°W to the west.  Signal received on 36 meters at Volume 2/3.  
           
           
Sun and Moon Data 05.10.43
Sun and Moon Data 06.10.43
Sun and Moon Data 07.10.43
 
- 8 -
 
           
           
           
           
    08.10.43 North Atlantic    
    00.00 AL 1214    
      SW 1, Sea 2, 6/10, showers, Vis. 2 nm, 976 mb, +10°C    
    04.00 AL 1128    
      W 4, Sea 3, 6/10, Vis. 2 nm, 978 mb    
    06.06   Dived, proceeded submerged at depth A -50 meters to repair the periscope.  
    08.00 AL 1118 Morning twilight.  
    12.00 AK 3263 Day's run:   Surfaced       125 nm  
               "          Submerged     17 nm  
    13.40   Surfaced.  Periscope repairs completed except for drying.  
    16.00 AK 3252    
      SSW 4, Sea 3, 8/10, Vis. 12 nm, 983 mb, +12°C    
    18.25   Incoming Radio Message 1712/8/164:  1)  and 3) Schrewe continue transit in accordance with special task.  From 9 October 08.00 hours switch to Hubertus Circuit.  
    18.35   Incoming Radio Message 1742/8/165:  Westbound convoy 8 October noon in AL 37.  9 October in AL 15.  
    20.00 AK 3244    
      SW 4, Sea 4, overcast, Vis. 6 nm, 977 mb, +10°C    
    20.40   Evening twilight.  
           
    09.10.43 North Atlantic    
    00.00 AK 3154    
      SW 6, Sea 5, 5/10, Vis. 5 nm, 978 mb    
    04.00 AK 3149    
      SSW 7, Sea 6, Sea 6, medium-high SW-Swell, 3/10, Vis. 4 nm, 978 mb, +8°C    
    04.35   Served as radio repeater for the not heard by Control Short Signal from U-470.  My position is AL 1456.  
    08.00 AK 2269 Was also not heard by Control.  
      SSW 6, Sea 5, 3/10, hail and rain showers, Vis. 3-8 nm, 977 mb, +8°C Switched to "Hubertus" Radio Circuit.  
    08.20   Morning twilight.  
    12.00 AK 2281 Day's run:   Surfaced       126 nm  
               "          Submerged       5 nm  
    16.00 AK 2274? Difference between dead reckoning and actual position after a navigation fix:  156°T, 15 nm.  
      S 6, squalls, Sea 4, high S-Swell, 3/10, showers, Vis. up to 12 nm, 971 mb, +8°C  
    20.00 AK 2326    
      NW 5, Sea 4, 4/10, Vis. 12 nm, 977 mb, +10°C    
    22.55   Evening twilight.  
           
    10.10.43 North Atlantic    
    00.00 AK 2318    
      WNW 6, Sea 5, high Swell, 8/10, rain showers, 985 mb, +9°C    
    04.00 AK 1462    
      SW 5, Sea 5, high Swell, 5/10, showers, Vis. 4 nm, 987 mb, +9°C    
    07.20   Quadruple locking mechanism knocked loose, quadruple mount pivots with the rocking of the boat in the heavy seas  
           
Sun and Moon Data 08.10.43
Sun and Moon Data 09.10.43
Sun and Moon Data 10.10.43
 
- 9 -
 
           
           
           
    continued      
    10.10.43      
        Swings back and forth.  Cannot go onto the over deck to work on the quadruple mount without danger.  
    08.00 AK 1446    
      SW 7, Sea 6, overcast, rain, Vis. 2 nm, 979 mb, +8°C    
    08.35   Morning twilight.  
    12.00 AK 1368 Day's run:   Surfaced       147 nm  
      SSW 8, Sea 6, 4/10, low overcast, rain squalls, Vis. 10 nm, 973 mb, +9°C    
    12.29   Test dive and remaining work on the attack periscope.  
    15.12   Surfaced, periscope in service again.  
    15.30   Difference between dead reckoning and actual position after a navigation fix:  239°T, 12 nm.  
    15.45   Fire in the diesel due to high exhaust gas temperature due to the Sea State.  Bursting into flame of leaking oil from a passing lubricating oil line.  Duration 10 minutes.  
    16.00 AK 1381    
      SW 8, Sea 7, 3/10, Vis. 12 nm, 971 mb, +8°C    
    16.13   Dived.  Proceeded submerged at depth A -20 meters.  
        With Sea State from 7 neither economical cruising speed (diesel electric) LF or even HF increased to 2 x HF can be maintained because, due to high external water pressure (wave peaks), water gets into and remains in the diesel exhaust gas piping.  In heavy weather the boat can be held obliquely to the sea only on one shaft with E-motor 2 x HF to GF, nearly without any speed of advance.  The other shaft pure charging.  The battery charges only very slowly because  in addition to the consumption of one E-motor at 2 x HF or GF there is continuous operation of the main drain pump (water through the conning tower hatch and diesel air intake shaft).  Additionally compressed air charging  is only possible with the E-compressor.  To have any speed of advance  it is necessary to dive and proceed submerged.  
      The cause of this problem is thought to be the new camshaft, the larger overlap periods of exhaust and intake valves in forward gear must bring about a decrease in the exhaust gas pressure.  
    21.05   Evening twilight.  
    22.07   Surfaced, proceeded with one E-motor 2 x HF, battery charging.  
           
    11.10.43 North Atlantic    
    00.00 AK 1374    
      WSW 9, Sea 8, very high Swell, 8/10, showers, Vis. 5 nm, 972 mb, +8°C    
    04.00 AK 1374    
      WSW 5, Sea 5, high Swell, 8/10, low overcast, rain and hail showers, Vis. 1-4 nm, 970 mb, +7°C    
    08.00 AD 9886    
    08.50 WSW 7, Sea 6, 8/10, rain squalls, Vis. 10 nm, 970 mb, +5°C Morning twilight.  
    12.00 AD 9878    
      WSW 8, Sea 8, 8/10, rain squalls, Vis. 12 nm, 970 mb    
           
           
Sun and Moon Data 10.10.43
Sun and Moon Data 11.10.43
 
- 10 -
 
           
           
           
    continued      
    11.10.43      
    12.00   Day's run:   Surfaced        55 nm  
               "          Submerged    26 nm  
    14.30   Difference between dead reckoning and actual position after a navigation fix:  215°T, 6.5 nm.  
    14.49   Battery charging ended, dived, proceeded submerged at depth A -20 meters.  Diesel is continually flooded in the Sea State.  
    16.00 AJ 3236    
      W 10, Sea 8, very high Swell, overcast, rain squalls, Vis. 5 nm, 972 mb    
    20.00 AJ 3237    
    21.20   Evening twilight.  
    22.00   Surfaced, attempted to proceed on the surface.  Diesel flooded and stopped.  Lay hove too with one E-motor HF.  Charged the battery.  
           
    12.10.43 North Atlantic    
    00.00 AJ 3228    
      SW 9, Sea 8, very high Swell, 8/10, showers, Vis. 5 nm, 975 mb, +7°C    
    04.00 AJ 3252    
      WSW 10, Sea 9, very high Swell, 7/10, rain squalls, Vis. 5 nm, 975 mb, +6°C    
    04.23   Battery full.  Dived to proceed submerged at depth A -20 meters.  
    08.00 AJ 3243    
    09.05   Morning twilight.  
    10.00   Surfaced, proceeding on the surface is barely possible.  
        Diesel smokes very strongly.  
    12.00 AJ 3163 Day's run:   Surfaced       32 nm  
      W 8, Sea 7, high Swell        "          Submerged    42 nm  
    16.00 AJ 3156    
      W 10, Sea 8, very high W-Swell, 8/10, Vis. 12 nm, 974 mb, +8°C    
    16.40   Dived.  Diesel flooded.  Proceeded submerged at depth A -30 meters.  
    18.00   Surfaced for Program Time.  Very low frequency reception only on the surface.  
    18.14   Dived, went to depth A -20 meters.  
    20.00 AJ 3167    
    21.30   Evening twilight.  
           
    13.10.43 North Atlantic    
    00.00 AJ 3158    
    03.06   Surfaced.  
    04.00 AJ 3149    
      W 11, Sea 9, very high W-Swell, 5/10, hail showers, Vis. about 2 nm, 985 mb, +7°C    
    04.20   Quadruple anti-aircraft gun goes overboard with a heavy breaker, no damage to the boat.  
    04.30   Incoming Radio Message 1849/12/822:   
        To simulate a battle group stationed in square AJ 20 on reaching square 34 shortly after one another sent 2 different Short Signals.  In so doing each time change keyer [radio operator] and frequency.  Afterwards in square 20 each day at various  
           
Sun and Moon Data 11.10.43
Sun and Moon Data 12.10.43
Sun and Moon Data 13.10.43
 
- 11 -
 
           
           
           
    continued      
    13.10.43   times send 1 Short Signal or 1 short Radio Message.  After each transmission change area, use special caution not to be seen.  Orders concerning further transit and special task to follow.  All naval square AJ.  
    06.11   Dived.  
    08.00 AJ 3175 Attack periscope out of service.  Defect in the extended part.  
      Repair is only possible on the surface, not possible at the moment.  Will arrange the repair at the anchorage on the Labrador coast.  Periscope repair can be completed during the deployment and setting up of the weather transmitting gear on land.  
    09.15   Morning twilight.  
    10.03   Surfaced.  
    12.00 AJ 3415 Day's run:   Surfaced       46 nm  
      W 10, Sea 9, very high Swell, 8/10 medium, Vis. about 2 nm, hail, severe rain squalls, 985 mb, +2°C        "          Submerged    43 nm  
    15.40   Difference between dead reckoning and actual position after a navigation fix:  148°T, 20 nm.  
    16.00 AJ 3473    
      Unchanged, 982 mb    
    16.24   Detection on Wanze, 120/125 cm, tone 800 Hz.  Dived, depth A -40 meters.  
    20.00 AJ 3475    
    21.35   Evening twilight.  
    22.00   Surfaced, battery charging, Sent Radio Message.  
    22.26   Outgoing Short Signal on Hubertus Circuit rb.  2226/13/647:  No weapons use possible due to Sea State.  Fuel inventory 150 to 200 cbm.  
        Afterwards attempted to send the Short Signal on America, Ireland and Africa Circuits, was not heard.  
    23.35   Outgoing Short Signal on Hubertus (wy):  2335/113/815:  My position is AJ 3448.  
           
    14.10.43 North Atlantic    
    00.00 AJ 3448    
      Unchanged    
    04.00 AJ 3448    
      WNW 11, Sea 8, very high Swell, 4/10, low overcast, Vis. 2 nm, 986 mb, +2°C    
    04.40   Battery charging ended, dived, depth A -30 meters.  
    08.00 AJ 3447    
    09.30   Morning twilight.  
    12.00 AJ 2669 Day's run:   Surfaced       39 nm  
               "          Submerged    32 nm  
    14.04   Surfaced, no reception at Program Time submerged on very low frequency.  
    15.36   Outgoing Radio Message 1503/14/861:  Quadruple overboard, NW 11 shifting clockwise, Sea 8, very high Swell, 9/10, showers, Vis. 1-4 nm, 991 mb rising, water +8°C, air +4°C, 181 cbm.  
    16.00 AJ 2691    
      NW 11, squalls to 13, Sea 9, 993 mb, +4°C    
    17.00   Dived, depth A -30 meters.  
      For completion of the task:  Simulating a combat group in square AJ 20 by increased Radio Message traffic I will remain unseen by  
           
Sun and Moon Data 13.10.43
Sun and Moon Data 14.10.43
 
- 12 -
 
           
           
           
    continued      
    14.10.43 proceeding submerged by day.  Surfacing at night to charge the battery.  Due to the loss of the quadruple double caution for enemy air danger.  
    20.00 AJ 2686    
    21.35   Evening twilight.  
           
    15.10.43 North Atlantic    
    00.00 AJ 2684    
    03.00   Surfaced.  
    04.00 AJ 2676    
      WNW 10, Sea 8, very high Swell, 6/10, Vis. about 4 nm, 1004 mb, +5°C    
    06.00   Attempt to send a Radio Message, was not heard, neither on Hubertus, America, Ireland nor Africa Circuits.  Sending put off until tonight.  
    08.00 AJ 2599    
      Unchanged    
    09.40   Morning twilight.  
    10.02   Incoming Radio Message 2245/14/867:  Tonight up to 05.30 hours report only clear text weather.  
    11.48   Incoming Radio Message 1119/15/874:  Report:  1)  Location at which quadruple was broken.  2)  If quadruple was in lashed down position.  3)  If shields were folded.  4)  What needs to be done for  those places with a view towards strengthening the mounting.  
    12.00 AJ 2831 Day's run:   Surfaced       52 nm  
      WSW 6, Sea 5, high Swell, overcast, Vis. 10 nm, 1007 mb, +5°C        "          Submerged   24 nm  
    13.50   Dived to depth A -30 meters.  
    14.30   Difference between dead reckoning and actual position after a navigation fix:  147T°, 10.5 nm.  
    16.00 AJ 2829    
    18.00   Surfaced for Program Time and to send Radio Message.  
    18.30   Outgoing Radio Message 1738/15/880:  1)  Gun mount upper half and bolt base ring.  2)  No, both lashings broke.  3)  One shield brace torn away.  4)  Basic problem is too weak gun mount.  Lashings and strengthen braces and gun mount base.  
    18.34   Brief detection 140 cm, 400 Hz, Volume 2/3.  
    18.41   Dived, depth A -30 meters.  
    20.00 AJ 2828    
    21.45   Evening twilight.  
           
    16.10.42 North Atlantic    
    00.00 AJ 2824    
    02.40   Surfaced.  
    03.26   Incoming Radio Message 1916/15/882:  Tonight between 01.00 and 05.00 hours report weather by Short Signal.  
    03.28   Outgoing Radio Message 0302/16/890:  Open text weather report.  Radio Message was not heard on Hubertus Circuit.  
    03.42   Incoming Radio Message 0330/16/888:  03.28 hours sent Radio Message Volume 2/3.  Heavy interference, reception impossible.  Attempt to get through on another circuit.  
    04.00 AJ 2813    
      SW 5, Sea 4, 9/10, Vis. 4 nm, 1002 mb    
    04.16   Repeated outgoing Radio Message 0302/16/890 on Ireland Circuit, was heard.  
           
Sun and Moon Data 14.10.43
Sun and Moon Data 15.10.43
Sun and Moon Data 16.10.43
 
- 13 -
 
           
           
           
    continued      
    16.10.43      
    05.56   Outgoing Short Signal weather report.  
    08.00 AJ 2547    
      WNW 6, Sea 4, 7/10, Vis. 7 nm, 1002 mb    
    09.35   Morning twilight.  
    10.24   Dived, depth A -30 meters.  
    12.00 AJ 2425 Day's run:   Surfaced       56 nm  
               "          Submerged   28 nm  
    16.00 AJ 2423    
    17.50   Surfaced for Program Time.  
    19.28   Dived, depth A -40 meters.  
    20.00 AJ 2186    
    21.55   Evening twilight.  
           
    17.10.43 North Atlantic    
    00.00 AJ 2182    
    00.30   Surfaced, battery charging.  
    01.05   Incoming Radio Message 2015/16/809:  Between 01.00 and 05.00 hours report weather by Short Signal.  
    03.49   Outgoing Radio Message 0043/17:  Detection Aldaney about 10 cm, double tone 400 Hz, Volume 3.  
    03.50   Outgoing Short Signal weather report.  
    04.00 AJ 2184    
      WNW 6, Sea 5, medium-high Swell, 5/10, showers, Vis. 4 nm, 1008 mb, +8°C    
    06.09   Dived, depth A -40 meters.  
    08.00 AJ 2179    
    09.09   Surfaced for Program Time.  
    10.05   Morning twilight.  
    10.23   Incoming Radio Message 0558/17/832:  2)  Radio Message 0043/17 very heavily distorted.  Contents:  Detection (12 letters unclear) 10 cm, AF 7124, 8-1500 Hz, Volume 2, AE 9132, double tone 400 Hz, with Volume 2.  
    12.00 AJ 2415 Day's run:   Surfaced       41 nm  
      WNW 7, Sea 8, high Swell, overcast, Vis. 8 nm, 1010 mb, +6°C        "          Submerged   30 nm  
    12.40   Outgoing Radio Message 1251/17/841:  In Radio Message 0043/47 must mean:  Detection Alderney about 10 cm.  
    14.30   Dived, depth A -40 meters.  
    16.00 AJ 2482    
    20.00 AJ 2485    
    21.47   Surfaced.  
    22.00   Evening twilight.  
        Difference between dead reckoning and actual position after a navigation fix:  95°T, 10 nm.  
           
    18.10.43 North Atlantic    
    00.00 AJ 2726    
      NW 5, Sea 4, medium Swell, 4/10, Vis. 3 nm, 1009 mb, +4°C    
           
           
Sun and Moon Data 16.10.43
Sun and Moon Data 17.10.43
Sun and Moon Data 18.10.43
 
- 14 -
 
           
           
           
    continued      
    18.10.43      
    04.00 AJ 2789    
      NW 6, Sea 5, medium Swell, overcast, rain showers, Vis. about 3 nm, 1010 mb, +8°C    
    08.00 AJ 2799 Difference between dead reckoning and actual position after a navigation fix:  177°T, 14 nm.  
      NNW 6, Sea 5, 6/10, showers, Vis. 7 nm, 1009 mb, +3°C  
    10.20   Morning twilight.  
    12.00 AJ 5313 Day's run:   Surfaced       116 nm  
               "          Submerged     15 nm  
    12.55   Incoming Radio Message 1239/18/874:  Continue transit to complete special task.  Operation as transmitting boat thereby settled.  From 19 October 08.00 hours switch to America I Circuit.  
        Contained transit at economical transit speed for the Labrador coast.  
    16.00 AJ 2874    
      NW 7, Sea 6, overcast, Vis. 12 nm, 1009 mb    
      If possible to avoid encountering people, for example the Inuit currently moving to the south at this time of year, I will choose a location for establishing the weather radio equipment a place which is on the northern Labrador coast.  The objective is ÄA 1499.  Ice is still not to be expected.  Evasion to the south still always remains free.  
    20.00 AJ 2791    
      Unchanged    
    22.10   Evening twilight.  
           
    19.10.43 North Atlantic    
    00.00 AJ 2757    
      Unchanged, 1015 mb    
    04.00 AJ 2789    
      NW 6, Sea 5, medium Swell, 9/10, showers, 1010 mb, Vis. 4 nm, +8°C    
    08.00 AJ 2799 Switched to America I Circuit.  
      Freshening, Vis. up to 8 nm    
    10.30   Morning twilight.  
    12.00 AJ 5313 Day's run:   Surfaced       116 nm  
      NW 7, Sea 5, showers, 9/10, Vis. up to 10 nm, 1010 mb, +4°C        "          Submerged     15 nm  
    16.00 AJ 2874    
      Unchanged    
    20.00 AJ 2791    
      Unchanged    
    22.15   Evening twilight.  
           
    20.10.43 North Atlantic    
    00.00 AJ 2757    
      Unchanged, Vis. 4 nm, 1015 mb    
           
           
           
Sun and Moon Data 18.10.43
Sun and Moon Data 19.10.43
Sun and Moon Data 20.10.43
 
- 15 -
 
           
           
           
    continued      
    20.10.43      
    04.00 AJ 1457    
      NNW 3, Sea 2, overcast, Vis. 3 nm, 1025 mb    
    08.00 AH 3666    
      NNW 2, Sea 1, +6°C    
    10.45   Morning twilight.  
    12.00 AH 3628 Day's run:   Surfaced       165 nm  
      Unchanged, Vis. 10 nm        "          Submerged       0 nm  
    16.00 AH 3611    
      SSW 1, Sea 1, overcast, Vis. 12 nm, 1025 mb    
    20.00 AH 3288    
      Unchanged    
    22.25   Evening twilight.  
           
    21.10.43 Davis Strait    
    00.00 AH 3271    
    04.00 AH 3158 In the last 3 days due to overcast no navigation fix was possible.  Water temperature falls from 7° to 3°C.  Boat is in the Labrador current.  
      SW 2, Sea 1, overcast, showers, Vis. 2 nm, 1024 mb, +4°C  
    08.00 AH 3158    
      Unchanged    
    11.00   Morning twilight  
    12.00 AH 2353 Day's run:   Surfaced       170 nm  
      SW 1, Sea 1, overcast, Vis. 10 nm, 1025 mb, +1°C    
    13.36   Test dive to depth A +60 meters.  
        If there are leaks can utilize the idle time on the Labrador coast for repairs.  
    15.04   Surfaced, no issues.  
    16.00 AH 2315    
      WNW 3, Sea 2, overcast, Vis. 8 nm, 1025 mb, +1°C    
    20.00 AH 2222    
      Unchanged    
    22.25   Evening twilight.  
           
    22.10.43 Davis Strait,    
      Labrador coast    
    00.00 ÄA 2641    
      Fog banks, Vis. changing up to 8 nm    
    04.00 ÄA 2641    
      N 4, Sea 3, Vis. 3 nm, 8/10, snow showers, 1031 mb, 0°C    
    08.00 ÄA 0134 Morning twilight.  
    11.00 Freshening, cloudy Difference between dead reckoning and actual position after a navigation fix:  7.5°T, 23.5 nm.  
    12.00 ÄA 1552    
      NNE 4, Sea 3, Vis. 10 nm, 4/10, 1032 mb, 0°C    
    13.30   Cape Chidley comes in sight.  
    14.00   Test dive.  
    14.15   Surfaced.  
           
Sun and Moon Data 20.10.43
Sun and Moon Data 21.10.43
Sun and Moon Data 22.10.43
 
- 16 -
 
           
           
           
    continued      
    22.10.43      
    16.00 ÄA 1475 Just off the coast three icebergs appear.  On approaching further the contour of the land behind is clearly recognized for position. Piloted myself in-between "Home Island" and the "Avayalik" Islands.  
      NE 3, Sea 2, Vis. 18 nm, 3/10, 1035 mb  
    18.45 ÄA 1499 Anchored in Attnaukuke Bay [Martin Bay] 300 meters from land.  Position 60° 4.5'N, 64° 23.6'W.  
        Day's run:   Surfaced    223 nm  
    19.40   Went ashore by rubber boat.  Explored for a suitable location for the weather gear.  
    21.30   Began transport of the gear ashore.  On the nearest high mountain ridge established a post to warn of approach from the sea.  
    22.40   Evening twilight.  
           
    23.10.43 Labrador coast, Attnaukuke Bay Transport and construction work on land.  
      Periscope and other work completed.  
    11.09   Morning twilight.  
    18.00 W 2, Sea 1, clear, -2°C Construction work ended.  
      Waited for the first Program Time of the weather transmitting gear to make certain of the work.  
    22.30   Evening twilight.  Weather gear springs into operation at nearly the exact Program Time with a 3 minute delay.  Adjustment of the clock is not necessary according to the judgment of the embarked special personnel.  
    22.40   Weighed anchor and set off from the coast in darkness at economical transit speed.  
    23.48   Incoming Radio Message 1211/23/213:  After completion of special task move off 300 nm and report completion by Short Signal.  Then free to maneuver in square BB and east therefrom.  
           
    24.10.43 Davis Strait    
    00.00 ÄA 1574    
      W 3, Sea 1, Vis. up to 30 nm, 1030 mb, 0°C    
    04.00 ÄA 1582    
      NW 3, Sea 3, clear, Vis. 15 nm, 1025 mb, -3°C    
    08.00 ÄA 2147    
      NW 4, Sea 3    
    09.35   Test dive.  
    10.00   Surfaced.  
    10.45   Morning twilight.  
    11.15   Difference between dead reckoning and actual position after a navigation fix:  252°T, 5 nm.  
    12.00 ÄA 2187 Day's run:   Surfaced       92 nm  
      Unchanged, 0°C        "          Submerged     1 nm  
    16.00 ÄA 2638    
      Unchanged    
    19.00   Difference between dead reckoning and actual position after a navigation fix: 135°T, 7 nm.  
    20.00 ÄA 2757 At Sea States from 6 during transit must come to HF because with the stern sea the diesel took too much water and had to be stopped.  
      NNW 7, Sea 8, Vis. 10 nm, 1019 mb, +2°C, 7/10  
    22.30   Evening twilight  
           
           
           
Sun and Moon Data 22.10.43
Sun and Moon Data 23.10.43
Sun and Moon Data 24.10.43
 
- 17 -
 
           
           
           
           
    25.10.43 North Atlantic    
    00.00 ÄA 2799    
      Unchanged    
    04.00 AH [typo ÄA] 3128    
      NNW 6, Sea 5, medium-high Swell, overcast, Vis. 6 nm, 1018 mb, +3°C    
    08.00 AH [typo ÄA] 3247    
      Unchanged, Vis up to 4 nm, 1016 mb    
    10.35   Morning twilight.  
    12.00 AH [typo ÄA] 3288 Day's run:   Surfaced 197 nm  
      Snow showers, Vis. about 10 nm, 1015 mb, +4°C    
    16.00 AH [typo ÄA] 3539 Difference between dead reckoning and actual position after a navigation fix:  27°T, 2 nm.  
      Clouds breaking up  
    17.00                                                  Have moved off 300 nm from the location where the weather transmitting gear was deployed.  From the statement of the embarked "special personnel" it is absolutely necessary to give by Radio Message, the difference that the gear was set up from sea level, since is is assumed that it is located at the suggested position, and thus would draw the wrong conclusion from the work of the barometer from the Short Signal message "Have performed task".  
    18.25   Outgoing Radio Message 1725/25/104/247:  Positioned 7 mb high.    [the gear was about 60 meters above sea level]  
      Intend to proceed to square BB on the Newfoundland Bank at economical transit speed, exploiting deep water, to go close to the eastern tip of Newfoundland with the assumption that steamer traffic will be met there.  
    20.00 AH [typo ÄA] 3673 Test dive.  
      NNW 5, Sea 4, Vis. 10 nm, 7/10, snow and rain showers    
    20.40   Surfaced.  
    22.15   Evening twilight.  
           
    26.10.43 North Atlantic    
    00.00 AH [typo ÄA] 3925    
      Unchanged    
    04.00 AH [typo ÄA] 3991    
      NW 7, Sea 6, medium NW-Swell, 8/10, snow showers, Vis. 5 nm    
    05.15   Incoming Radio Message 2159/25/250:  Schrewe and Schwebcke 05.00 hours report weather.  
    05.40   Very bad short wave reception, sometimes not at all.  
    06.25   Sent Short Signal weather report on Africa I Circuit was not confirmed.  Sending on other circuits hopeless, because there is almost no reception.  
    08.00 AH 6338    
      NNW 5, Sea 4, Vis. up to 8 nm, overcast, rain and snow show squalls, 1014 mb, +3°C    
    10.20   Morning twilight.  
    12.00 AJ 4171 Day's run:   Surfaced       183 nm  
               "          Submerged       1 nm  
    14.20   Test dive.  
           
           
Sun and Moon Data 25.10.43
Sun and Moon Data 26.10.43
 
- 18 -
 
           
           
           
    continued      
    26.10.43      
    15.27   Surfaced.  
    16.00 AJ 4419    
      NNW 6, Sea 5, Vis. 12 nm, overcast, 1031 mb, +5°C    
    20.00 AJ 4485    
    22.05   Evening twilight.  
           
    27.10.43 North Atlantic    
    00.00 AJ 4737    
      Vis. 2-4 nm    
    04.00 AJ 4796    
      WNW 7, Sea 6, medium NW-Swell, 5/10, showers, Vis. 2 to 5 nm, 1013 mb, +4°C    
    08.00 AJ 7245    
      Increasing cloudiness, Vis. up to 8 nm, 1014 mb    
    10.10   Morning twilight.  
    11.23   Incoming Radio Message 1123/27/264:  To Schrewe and Barber.  Off St. Johns lie own mines between 47° 23'N and 47° 45'N coast and 52° 17'W.  "Barber" report if deployed outside given positions.  
    12.00 AJ 7522 Day's run:   Surfaced       187 nm  
      Long Swell, Vis. about 10 nm, 1015 mb, +2°C        "          Submerged       4 nm  
    15.30   Test dive.  
    16.00 AJ 7567 Surfaced.  
      Unchanged    
    20.00 AJ 7598    
      NW 6, Sea 5, overcast, Vis. 14 nm, 1017 mb    
    21.40   Incoming Radio Message 2045/27/269:  3.)  During the new moon exploit favorable opportunities off harbor in BB 6386 [St. Johns].  Radio message 1123/27/154/264 is important.  
    21.55   Evening twilight.  
           
    28.10.43 Newfoundland Bank    
    00.00 AJ 7944    
      W 4, Sea 3, Vis. up to 5 nm, overcast, snow showers, 1017 mb, +3°C    
    04.00 WNW 6, Sea 5, medium NW-Swell, clear, plus Northern Lights, Vis. 8 nm, 1017 mb, +3°C Difference between dead reckoning and actual position after a navigation fix:  196°T, 10 nm.  
    07.54   Detection on Naxos (10 cm), dived to depth A -40 meters.  
    08.00 BC 1284    
    09.30   Morning twilight.  
    09.57   Surfaced.  
    12.00 BC 1526 Day's run:   Surfaced       163 nm  
      WSW 7, Vis. 14 nm, 2/10, high overcast, 1016 mb, +6°C        "          Submerged      9 nm  
    16.00 BC 1567 Difference between dead reckoning and actual position after a navigation fix:  344°T, 2.5 nm.  
      W 5, increasing high cloudiness  
           
Sun and Moon Data 26.10.43
Sun and Moon Data 27.10.43
Sun and Moon Data 28.10.43
 
- 19 -
 
           
           
           
    continued      
    28.10.43      
    20.00 BC 1835    
      Unchanged    
    21.45   Evening twilight.  
    23.33   Detection on Naxos, dived to depth A -40 meters.  
           
    29.10.43      
    01.15   Surfaced.  
    03.33   Detection on Wanze, 140 cm, tone 800 Hz. Dived to depth A -40 meters.  
    04.00 BC 1889    
      WSW 4, Sea 3, Vis. 2 nm, 3/10, medium-high overcast, 1015 mb, +7°C    
    05.05   Surfaced.  While blowing a new detection on Wanze, 140 cm, 800 Hz.  
    05.07   Dived to depth A -40 meters.  
      Detections are possibly from aircraft, or "Blimps" that are expected to monitor the area off the coast.  No sound bearings.  Detections from land stations are also conceivable because the coast rises to 100 meters.  Will remained submerged until dawn, then determine if the same air reconnaissance is to be expected by day.  
    08.00 BC 4222    
    10.13   Morning twilight.  
    11.55   Surfaced.  
    12.00 BC 4221 Day's run:   Surfaced       107 nm  
      SSE 7, Sea 6, medium-high SW-Swell, low overcast, drizzle, Vis. 3 nm, 1002 mb, +8°C        "          Submerged     19 nm  
    16.00 BC 4214    
      Unchanged    
    19.25   Detection on Naxos.  Dived to depth A -40 meters.  
    20.00 BC 4137    
    21.05   Surfaced.  
    21.17   Detection on Wanze.  Dived to depth A -40 meters.  
    21.40   Evening twilight.  
           
    30.10.43 Newfoundland Bank    
    00.00 BC 4128    
    03.02   Surfaced.  
    03.59   Weak detection on Wanze.  
    04.00 BC 4143    
      S 5, Sea 4, medium-high SW-Swell, 7/10 low overcast, Vis. up to 3 nm, 990 mb, +6°C    
    06.06   Detection on Naxos.  Dived to depth A -40 meters.  
    08.00 BC 4142    
    10.10   Morning twilight.  
    10.24   Surfaced.  
    10.40   Difference between dead reckoning and actual position after a navigation fix:  90°T, 27 nm.  
    11.04   Detection on Wanze, 170 cm, 800 Hz.  
        Dived, depth A -40 meters.  
    12.00 BC 4132 Day's run:   Surfaced       64 nm  
               "          Submerged   27 nm  
    14.02   Surfaced.  
    15.15   Detection on Wanze.  Dived to depth A -40 meters.  
    16.00 BC 4143    
    20.00 BC 4142    
           
           
Sun and Moon Data 28.10.43
Sun and Moon Data 29.10.43
Sun and Moon Data 30.10.43
 
- 20 -
 
           
           
           
    continued      
    30.10.43      
    21.40   Evening twilight.  
    21.50   Surfaced.  
           
    31.10.43 Newfoundland Bank    
    00.00 BC 4149    
      SSW 7, Sea 5, 2/10, medium high overcast, Vis. up to 3 nm, showers, summer lightening, 985 mb, +9°C    
      The frequent detections show relatively the same surveillance of the coastal area by day as by night.  Sound bearings were not heard.  I now suspect detection from strong land stations rather than from aircraft.  Am over 30 nm from the coast. How far I am really detected by this locating I cannot determine.  Henceforth I will remain mainly submerged and only surface to charge the battery and/or ventilate the boat.  
    00.57   Detection on Wanze, 170 cm, tone 800 Hz.  
        Dived to depth A -40 meters.  
    04.00 BC 4184    
    05.09   Surfaced.  
    07.12   Detection on Wanze, 170 cm, tone 800 Hz.  Dived to depth A -40 meters.  
    08.00 BC 4427    
    10.10   Morning twilight.  
    10.24   Surfaced.  
    12.00 BC 4455    
      SSW 3, Sea 1, 8/10 high overcast, Vis. 12 nm, 985 mb, +10°C    
    13.28 BC 4445 Aircraft!  Type Hudson bearing 0°T in approach.  Shot with on board weapons, no bombs.  Aircraft moves far off after the first approach, outside firing range of own weapons.  
        Holds contact.  
    13.38   Crash dive!  Went to depth A, then to depth A -40 meters.  An attack by multiple aircraft can be expected shortly, therefore remained submerged until darkness.  
      The aircraft attack took place without previous detection.  Wanze and Alderney were manned, Naxos out of service at the moment.  I conclude that I could have been flown at either with a Naxos detection, which the Alderney did not pick up, or my presence in the coastal area had already been betrayed.  Moved off on search courses to the NE, to later come to a southerly course to go around the Newfoundland Bank.  Will move back and forth in position in BC 81 for a few days, give Radio Message then advance to BB 5940.  Traffic from the mainland to Newfoundland is to be expected.  
    16.00 BC 4442    
    20.00 BC 4415    
    21.35   Evening twilight.  
    21.45 BC 4415 Sound bearing 290°T.  Shifted quickly astern, was fainter.  On bearing 190°T nothing more was heard.  
        Nothing was seen at periscope depth.  
    22.03 BC 4413 New sound bearing 295°T.  Shifts very quickly ahead to 70°T, then nothing more heard.  
      Because the sound bearing was from a fast running turbine, I suspect that it was a patrol vessel brought up by aircraft.   
           
Sun and Moon Data 30.10.43
Sun and Moon Data 31.10.43
 
- 21 -
 
           
           
           
           
    01.11.43      
    00.00 BC 4413    
    00.14   Surfaced, moved off from the Newfoundland Bank on easterly courses.  
    04.00 BC 4192    
      NW 6, Sea 5, NW-Swell, low overcast, showers, Vis. about 2 nm, 986 mb, +10°C    
    08.00 BC 4273    
      NNW 8, Sea 7, high NW-Swell, 988 mb    
    10.15   Morning twilight.  
    12.00 BC 4295 Day's run:   Surfaced       112 nm  
      Low hanging clouds, Vis. up to 10 nm, 990 mb, +7°C        "          Submerged     34 nm  
    16.00 BC 4375    
      Vis. about 5 nm, misty, 995 mb    
    20.00 BC 4395    
      Unchanged    
    21.20   Evening twilight.  
           
    02.11.43 North Atlantic    
    00.00 BC 5717    
      NNW 7, Sea 5, 8/10, low overcast, showers, Vis. up to 3 nm, 1006 mb, +11°C    
    04.00 BC 5715 Difference between dead reckoning and actual position after a navigation fix:  205°T, 16 nm.  
      NNW 7, Sea 6, high N-Swell, clear, Vis. 6 nm, 1008 mb, +8°C  
    08.00 BC 5781    
      N 8, Sea 7, Vis. 4 nm, 7/10, medium-high overcast, 1010 mb, +6°C    
    10.00   Morning twilight.  
    10.43   Dived to depth A -50 meters.  
      With the prevailing weather conditions surprise by enemy air is to be expected.  Remained dived by day, nights on the surface.  
    12.00 BC 8124 Day's run:   Surfaced       182 nm  
      Unchanged        "          Submerged      3 nm  
    15.57   Surfaced.  Took mid day latitude, ventilated the boat.  
    16.00 BC 8127    
      NNE 7, Sea 6, Vis. 12 nm, 8/10, medium-high overcast, 1010 mb, +10°C    
    16.12   Dived to depth A -50 meters.  
    20.00 BC 8151    
      Unchanged    
    21.45   Evening twilight.  
    22.43   Surfaced.  
    23.23   Incoming Radio Message 2025/2/264: With required Radio Message report if weather gear was heard.  
           
    03.11.43 North Atlantic    
    00.00 BC 8173    
      NNE 7, Sea 5, Vis. up to 3 nm, 9/10 low overcast, 1010 mb, +8°C    
           
Sun and Moon Data 01.11.43
Sun and Moon Data 02.11.43
Sun and Moon Data 03.11.43
 
- 22 -
 
           
           
           
    continued      
    03.11.43      
    00.00 [typo 04.00] BC 8182 Naxos failed due to moisture from the Sea State.  Wanze out of service.  
    NNE 7, Sea 6, medium-high long Swell, overcast, Vis. 4 nm, 1010 mb, +10°C  
    07.30 Stay in BC 81 The Program Time of the weather transmitting gear was not heard.  
      Positioned in long legs with general direction north-south.  Refurbished Wanze, Naxos.  Listened to Radio Messages given for some days concerning the disposition of the U-boat groups "Körmer" and "Jahn" to the east and northeast which were not applicable to me.  Therefore I wait until Radio Messages given by these groups takes place.  I anticipate the opportunity to participate in operations on a westbound convoy detected by these groups.  
    08.00 BC 8164    
      Vis. changing, 1006 mb    
    10.00   Morning twilight.  
    11.06   Dived to depth A -30 meters.  
    12.00 BC 8152 Day's run:   Surfaced       73 nm  
      Unchanged, abating        "          Submerged   27 nm  
    15.45   Surfaced, took navigation fix.  
    16.00 BC 8119    
      NNW 5, Sea 4, Vis. 12 nm, 3/10, high and medium overcast, 1009 mb, +12°C    
    16.10   Dived to depth A -30 meters.  
    18.25   Surfaced.  Took navigation fix.  
    18.42   Dived again to depth A -50 meters.  
    18.50   Difference between dead reckoning and actual position after a navigation fix:  345°T, 8 nm.  
    20.00 BC 8115    
      Abating    
    21.50   Evening twilight.  
    22.30   Surfaced.  Naxos and Wanze are in service again.  
           
    04.11.43 North Atlantic    
    00.00 BC 8173    
      SSW 1, Sea 1, Vis. 5 nm, 2/10, high overcast, 1012 mb, +12°C    
    04.00 BC 8181    
      SW 3, Sea 2, light Swell, clear, Vis. 5 nm, 1015 mb, +10°C    
    07.30   The Program Time of the weather transmitting gear was heard, however strong interference on the frequency.  
    08.00 BC 8129    
      Unchanged    
    10.00   Morning twilight.  
      Remained on the surface because in the prevailing weather conditions surprise from aircraft cannot be expected.  
    10.20   Difference between dead reckoning and actual position after a navigation fix:  270°T, 4 nm.  
    12.00 BC 8185 Day's run:   Surfaced       103 nm  
      SSE 4, Sea 2, Vis. 12 nm, 3/10, high overcast, 1015 mb, +10°C        "          Submerged   28 nm  
    15.00   Dived due to weather conditions to depth A -30 meters.  
    16.00 BC 8151    
      SSE 3, Sea 2, Vis. 10 nm, high and low overcasts, 1015 mb, +10°C    
           
Sun and Moon Data 03.11.43
Sun and Moon Data 04.11.43
 
- 23 -
 
           
           
           
    continued      
    04.11.43 North Atlantic    
    20.00 BC 8116    
      Unchanged    
    21.30   Evening twilight.  
    23.03   Surfaced.  
           
    05.11.43 North Atlantic    
    00.00 BC 8122    
      SW 6, Sea 3, Vis. 3 nm, low overcast, 1011, +12°C    
    04.00 BC 8135    
      SE 6, Sea 5, Vis. 3 nm, 7/10 medium to low overcast, showers, 1012 mb, +10°C    
    08.00 BC 8167    
      S 6, Sea 5, overcast, misty, Vis. 2 nm, 1012 mb, +13°C    
    10.10   Morning twilight.  
    10.23   Dived, depth A -50 meters.  
    12.00 BC 8194 Day's run:   Surfaced       91 nm  
      Unchanged        "          Submerged   28 nm  
                                             119 nm  
    16.00 BC 8191    
      Clouds breaking up, clear, Vis. 12 nm    
    17.18   Surfaced.  
    19.00   Difference between dead reckoning and actual position after a navigation fix:  43°T, 11 nm.  
    19.15   Incoming Radio Message 1822/5/297  
        No supply begin return transit accordingly.  As soon as noticed report situation or position.  
    20.00 BC 8134    
      SW 3, Sea 2, long S-Swell, 2/10 high overcast, Vis. 12 nm, 1015 mb    
    21.20   Evening twilight.  
    23.24   Incoming Radio Message 2149/5/201  
        To Radio Message 2049/5 concerning prohibition of use of Wanze G 1 and short wave receiver "E 437 S", prohibition takes place because lack of radiation of the gear is not sufficiently certain. Expressly report disuse of the gear in the Kriegstagebuch.  
           
    06.11.43 North Atlantic    
    00.00 BC 8156    
      SW 4, Sea 2, Vis. 5 nm, 3/10, medium-high overcast, 1018 mb, +12°C    
    00.21   Incoming Radio Message 2049/5/299  
        1)  From now do not use Wanze G 1.  Will be replaced by Wanze (G 2) and/or Borkum receiver.  
        2)  Outbound and inbound boats east of 18°W, boats departing the homeland up to Naval square AE radio reception only via very low frequency with dived boat.  Short wave reception on the surface in these areas only with boats equipped with "Main" type receivers.  Receiver E 437 S is not to be used in these areas.  
           
           
           
Sun and Moon Data 04.11.43
Sun and Moon Data 05.11.43
Sun and Moon Data 06.11.43
 
- 24 -
 
           
           
           
    continued      
    06.11.43 North Atlantic    
    01.00   Wanze Type G 1 secured in accordance with Radio Message 2043/5/299.  Shortwave receiver remains in operation because am equipped with "Main" receiver.  
    04.00 BC 8185 Moonset.  
      SW 5, Sea 4, clear, bright moonshine, Vis. 5 nm, 1020 mb, +10°C    
    08.00 BC 8127    
      WNW 5, Sea 4, Vis. 6 nm,   4-9/10, low overcast, 1022 mb, +10°C    
    10.05   Morning twilight.  
    10.37   Dived.  Depth A -50 meters.  
    12.00 BC 8119 Day's run:   Surfaced      117 nm  
      Unchanged        "          Submerged    14 nm  
                                             131 nm  
    16.00 BC 8146    
      Unchanged    
    17.15   Detonation far off, series in quick succession, suspect aircraft bombs.  
    20.00 BC 8173    
      Increasing cloudiness    
    22.15   Evening twilight.  
    22.44   Surfaced.  
           
    07.11.43 North Atlantic    
    00.00 BC 8176    
      NNE 2, Sea 1, 2/10, high overcast, Vis. 4 nm, 1026 mb, +12°C    
    01.46   Incoming Radio Message 1501/6/210  
        From Böhmer (Group Jahn)  
        Pursuit without results.  Position in naval square BC 5393.  W 4, Sea 3, Vis. good, 1025 mb.   
    03.43   Short Signal 1401/6/209 from U-842:  was attacked by aircraft square BC 9716.  By this the presence of U-boats is known by the enemy.  I will remain one more day in square BC 81, possibly a W-bound convoy will still be detected, otherwise send Radio Message and advance to BB 5940.  
    04.00 BC 8152    
      E 2, Sea 1, long Swell, low overcast, moonshine, Vis. 4 nm, 1025 mb, +9°C    
    06.52   Dived, depth A -50 meters.  
    07.30   Questionable sound bearing in 310°T.  
    07.37   Surfaced, pursued at high speed in the direction of the sound bearing.  
    08.00 BC 5788    
      Wind calm, Sea 0, low overcast, Vis. 3 nm, 1023 mb, +10°C    
    10.00   Morning twilight.  
    10.04   Dived.  Depth A -50 meters.  No further sound bearings.  
    12.00 BC 4999 Day's run:   Surfaced       96 nm  
      ENE 2, Sea 1, low overcast, Vis. 4 nm        "          Submerged   40 nm  
                                           136 nm  
           
Sun and Moon Data 06.11.43
Sun and Moon Data 07.11.43
 
- 25 -
 
           
           
           
    continued      
    07.11.43 North Atlantic    
    16.00 BC 7333    
      NE 5, Sea 3, freshening    
    20.00 BC 7336    
    22.15   Evening twilight.  
    22.45   Surfaced.  
           
    08.11.43 North Atlantic    
    00.00 BC 8141    
      NE 7, Sea 5, medium Swell, low overcast, Vis. 1 nm, 1002 mb    
    04.00 BC 8178    
      NNE 9, freshening, Sea 7, high NE-Swell, low overcast, showers summer lightening, Vis. 2 nm, 999 mb, +8°C    
    06.57   Outgoing Radio Message 0612/8/238  
        Reception of weather gear impaired by enemy interference. Around square BC 4170 frequent Wanze and Naxos (typically Rotterdam).  On 31 October with out of service Naxos aircraft attack, no bombs.  Position square BC 8178, intend advance to BB 5940, 105 cbm, N 9, Sea 7, 1000 mb.  
        Advancing to BB 4940 via square BC 7878 south of the Newfoundland Bank.  
    08.00 BC 8443    
    08.22 N 10, Sea 8, very high N-Swell, low overcast, misty, rain, Vis. 500 meters, 998 mb Dived, depth A -40 meters.  
    10.10   Morning twilight.  
    12.00 BC 8485 Day's run:   Surfaced       64 nm  
      Abating, Vis. 4 nm        "          Submerged   30 nm  
                                              94 nm  
    16.00 BC 8447    
      Unchanged    
    20.00 BC 7669    
      Unchanged    
    22.20   Evening twilight.  
    22.40   Surfaced.  
           
    09.11.43 North Atlantic    
    00.00 BC 7691    
      ENE 8, Sea 6, 1017 mb, low overcast, Vis. 3 nm    
    04.00 BC 7921    
      N 7, Sea 8, high N-Swell, 8/10, medium-high overcast, 1016 mb, +9°C    
    08.00 BC 7839    
      NNE 6, Sea 5, Vis. 6 nm, moonshine, 5/10 - 9/10, low overcast, 1024 mb, +5°C    
    10.15   Morning twilight.  
    11.42   Dived, depth A -40 meters.  
    12.00 BC 7859 Day's run:   Surfaced       97 nm  
      Abating        "          Submerged   24 nm  
                                            121 nm  
           
Sun and Moon Data 07.11.43
Sun and Moon Data 08.11.43
Sun and Moon Data 09.11.43
 
- 26 -
 
           
           
           
    continued      
    09.11.43 North Atlantic    
    16.00 BC 7882    
      Abating further    
    17.01   Surfaced, took navigation fix.  
    17.11   Dived, depth A -50 meters.  
    19.00   Surfaced.  Took navigation fix.  
    19.10   Dived, depth A -50 meters.  
    19.20   Difference between dead reckoning and actual position after a navigation fix:  262°T, 2.5 nm.  
    20.00 BC 7876    
      Abating further    
    22.40   Evening twilight.  
    23.x0   Surfaced.  
           
    10.11.43 North Atlantic - Newfoundland Bank  
    00.00 BC 7874    
      NNW 1, Sea 1, bright moonshine, Vis. 6 nm, 9/10, low overcast, 1030 mb, +14°C    
    04.00 BC 7759    
      S 3, Sea 2, long N-Swell, bright moonshine, 8/10, medium-high overcast, Vis. 6 nm, 1029 mb    
    08.00 BC 7727    
      SW 2, Sea 1, clear, bright moonshine, Vis. 8 nm, 1029 mb, +12°C    
    10.20   Morning twilight.  
    12.00 BB 9933 Day's run:   Surfaced       97 nm  
      SSE 5, Sea 2, clear, Vis. 14 nm, 1028 mb, +14°C        "          Submerged   40 nm  
                                          137 nm  
    14.15   Smoke cloud was sighted briefly by a lookout bearing 18°T.  Pursued at high speed.  
    16.00 BB 9663    
      Unchanged    
    16.20   Pursuit broken off, because there is nothing came in sight.  It may have been a very fast independent, (19 knots) which did not come in sight even when pursued at high speed.  
    20.00 BB 9652    
      Unchanged    
    21.24   Square BB 9651, flying boat type Consolidated approaching bearing 10°T, altitude 1500 meters, 8000 meters away.  Remained on the surface for defense.  Flying boat initiates attack after tight spiral in a steep dive.  Shot with 2 cm anti-aircraft weapons, aircraft returned fire with on board weapons.  Altitude at bomb release 25 meters.  Turns at the falling of the bombs (4 at once) away to starboard with hard rudder.  Bombs went over the boat at the level of the bow, entered the water on the port side and detonate shortly after one another with delay.  At the same moment as the bombs the aircraft threw a smoke marker.  Aircraft flies far off.  Minor failures.  When the flying boat approached, had nothing more to throw,  
           
Sun and Moon Data 09.11.43
Sun and Moon Data 10.11.43
 
- 27 -
 
           
           
           
    continued      
    10.11.43 Newfoundland Bank    
    21.27   Crash dive!  Went to depth A -40 meters.  Moved off on southerly course.  
        Broke off advance to BB 5940 because presence betrayed, therefore I can no longer remain in the coastal area under these conditions and in the bright moonlit nights.  
    22.10   Evening twilight.  
           
    11.11.43 Newfoundland Bank    
    00.00 BB 9646 01.34 hours surfaced to send Radio Message.  
    01.58   Outgoing Radio Message 2127/10/282  
        Naval square BB 9651 Consolidated 4 aircraft bombs, moving off.  
    02.16   Incoming Radio Message:  0008/11/280  
        Enemy aircraft reported 21.28 hours attack on U-boat in 44° 18'N.  Longitude undetected.  Concerned U-boat report tonight position of the attack.  
        According to the information, yesterday's attack.  Report follows by Radio Message 01.58 hours.  
    04.00 BB 9678    
      SE 4, Sea 3, bright moonshine, 2/10, high veil of clouds, Vis. 8 nm, 1019 mb, +13°C    
    07.32   Dived.  Depth A -50 meters.  
    08.00 BB 9943    
      Unchanged    
    10.35   Morning twilight.  
    12.00 BB 9949 Day's run:   Surfaced       127 nm  
      2/10, very high overcast, Vis. 12 nm        "          Submerged     27 nm  
                                             154 nm  
    12.56   Surfaced to check chronometers after aircraft bombs. (Time signal)  
    12.58 BB 9973 While blowing flying boat Consolidated at low altitude approaching from 60°T, 7000 meters out of a cloud bank.  Attack follows from aster to port.  Shot at with 2 cm anti-aircraft guns during approach, one hit in bottom of the hull observed, returned fire with on board weapons, overflies the boat at 25 meters altitude, throws 4 bombs at once, lay 10 meters away on the starboard side at the level of the bow.  After flying off the flying boat circles the boat outside of the range of own anti-aircraft weapons.  No new approach.  Had nothing more to throw.  In the boat minor failures determined.  
    13.16   Crash dive!  Went briefly to depth A +20 meters, then to depth A -40 meters.  
    16.00 BB 9984 Speed measurement system out of service, cannot be repaired with on board means.  
      Misty  
    16.35 BB 9934 Weak sound bearing in 18°T, fast running engine.  Nothing distinguished through the periscope.  Sound bearing shifts slowly was louder then fainter again and disappeared in 235°T.  
    17.12   It can only have been a patrol vessel summoned by flying boat.  
    20.00 BB 9984    
      Misty    
    21.15 BB 9985 New sound bearing in 193°T quickly running  
           
           
Sun and Moon Data 10.11.43
Sun and Moon Data 11.11.43
 
- 28 -
 
           
           
           
    continued      
    11.11.43 Newfoundland Bank engine, was quickly louder.  While going to periscope depth, the bearing was steady.  Went to depth A +50 meters.  Sound beating continues, shifts astern quickly and disappears in 345°T.  
    22.45   Probably the same aircraft on its way back from his search line.  
    23.26 BB 9989 Surfaced.  
      E 3, Sea 2, weak long Swell, bright moonshine, fog, Vis. 500 meters, 1009 mb, +17°C Going to the eastern edge of the Newfoundland Bank and move back and forth in position there because have only light defense against aircraft (no quadruple) surfacing only in clear weather.  Surface at night to charge the battery.  
           
    12.11.43 North Atlantic    
    00.00 BB 9989    
      Unchanged    
    01.22   Outbound Radio Message 1305/11/291  
        BB 9972 Consolidated 4 depth charges, E 2, Sea 2, fog, 1014 mb.  
    04.00 CC 2223    
      ENE 3, Sea 2, long Swell, bright moonshine, fog, Vis. 500 meters, 1010 mb, +17°C    
    07.58   Dived, detection Alderney about 10 cm (Rotterdam gear) depth A -50 meters.  
    08.00 CC 2223 The torpedoes in the bow tubes were damaged by the depth charges.  Torpedoes were exchanged, tubes check carried out.  
      Unchanged  
    10.40   Morning twilight  
    12.00 BC 7874 Day's run:   Surfaced       97 nm  
      Fog        "          Submerged    32 nm  
                                               129 nm  
    16.00 BC 7879    
      Fog    
    20.00 BC 7884    
      Fog    
    21.45   Evening twilight.  
    22.33   Surfaced.  
           
    13.11.43 North Atlantic    
    00.00 BC 7883    
      SE 3, Sea 2, bright moonshine, fog breaking up, drizzle, 1006 mb, +14°C    
    04.00 BC 7869 Tube IV temporarily out of service.  
      ESE 3, Sea 2, light Swell, bright moonshine, Vis. changing 4 nm, misty, 1004 mb Tubes II and III only clear for surface firing.  
    07.51   Dived for all around listening.  
    08.00 BC 7914    
      ESE 1, Sea 1, long E-Swell, fog, bright moonshine, Vis. 100 meters, 1011 mb, +10°C    
    09.33   Faint sound bearing in 305°T shifted to 255°T.  Fast engine.  
    10.10   Morning twilight.  
    12.00 DC 7678 Day's run:   Surfaced       62 nm  
      Fog, Vis. 500 meters        "          Submerged    41 nm  
                                               103 nm  
    12.25 - 16.12   Faint sound bearing in 13°T (fast engine) 7 times series detonations at irregular intervals, far off (depth charges).  
           
Sun and Moon Data 11.11.43
Sun and Moon Data 12.11.43
Sun and Moon Data 13.11.43
 
- 29 -
 
           
           
           
    continued      
    13.11.43 North Atlantic    
    16.00 BC 7673    
      Fog, Vis. 300 meters    
    16.20 - 22.05   Faint sound bearing in 13°T, shits erratically to 293°T, then no longer heard.  
    20.00 BC 7673    
      Fog, Vis. 500 meters    
    22.00   Evening twilight.  
    22.26   Surfaced.  
        Will dive every 2-3 hours with the fog to check by listening if the noises heard during the day have come back or if something else is in the vicinity.  
           
    14.11.43 North Atlantic    
    00.00 BC 7656    
      ENE 2, Sea 1, fog, Vis. changing 1000 meters, bright moonshine, 1007 mb, +16°C    
    00.13 - 0x.x5   Dived, depth A -50 meters.   Operation on a finger injury of Masch.Gefr. Goldschmidt.  The faint sound bearing in 300°T remains, does not shift out.  This sound proves to be a flaw in the listening gear.  New faint sound bearing 185-195°T.  Barely shifts.  
    02.49 Fog, Vis. 500 meters Surfaced, pursued in 191°T.   
    03.56   To action stations.  
    03.56   Dived to listen, depth A -50 meters.  
    04.00 BC 7659    
      Wind calm, long Swell, fog, bright moonshine, Vis. 300 meters    
    04.13   Sounds bearing 163°T very faint.  
    04.26   Surfaced, pursued again.  
    06.05   Dived to listen, depth A -50 meters.  Nothing more heard.  
        With the prevailing fog, visibility is barely 500 meters, a search without indications (sound bearings) is impossible, also I am not convinced of the correctness of the sound bearing.  
    07.00   Secured from Action Stations.  
    07.15   Surfaced.  
    08.00 BC 7686    
      Unchanged, 1005 mb, +15°C    
    09.15   Dived, no sound bearings, depth A -50 meters.  
    10.00   Morning twilight.  
    12.00 BC 7667 Day's run:   Surfaced       50 nm  
      Fog        "          Submerged    46 nm  
                                               96 nm  
    16.00 BC 7662    
      Fog    
    20.00 BC 7635    
      Fog    
    22.00   Evening twilight.  
    23.00   Surfaced.  
           
Sun and Moon Data 13.11.43
Sun and Moon Data 14.11.43
 
- 30 -
 
           
           
           
           
    15.11.43 North Atlantic    
    00.00 BC 7396    
      Unchanged    
    01.00 Fog breaks up Difference between dead reckoning and actual position after a navigation fix:  217°T, 39 nm.  
    04.00 BC 7397 Tube IV in service again.  
      S 2, Sea 1, long Swell, medium-high overcast, at times breaking up fog, +13°C, Vis. 100-500 meters, 1000 mb, bright moonshine    
    08.00 BC 7363    
    10.20 NW 4, Sea 3, low overcast, Vis. 4 nm, bright moonshine, 1002 mb, +10°C Morning twilight  
    10.25   Dived.  Proceeded submerged at depth A -50 meters.  
    12.00 BC 5777 Day's run:   Surfaced       82 nm  
      2/10, medium-high overcast        "          Submerged   38 nm  
                                              120 nm  
    16.00 BC 5712    
      Misty, 6/10, low overcast    
    20.00 BC 5743    
      Misty, 4/10, medium-high overcast    
    21.30   Evening twilight.  
    22.57   Surfaced.  
    23.36   Moonrise.  
           
    16.11.43 North Atlantic    
    00.00 BC 5719    
      WNW 4, Sea 2, clear, Vis. 4 nm, 1009 mb, bright moonshine, +14°C    
    04.00 BC 5713 Difference between dead reckoning and actual position after a navigation fix:  213°T, 20 nm.  
      WNW 4, Sea 3, long W-Swell, clear, bright moonshine, Vis. 6 nm, 1010 mb, +10°C  
    06.29   Detection by Alderney 170 cm, tone 400 Hz, dived to depth A -50 meters.  
    08.00 BC 5458    
      Unchanged    
    08.16   Surfaced.  
    10.15   Increasing cloudiness.  Morning twilight.  
    10.25   Dived, depth A -50 meters.  
    12.00 BC 5428 Day's run:   Surfaced       61 nm  
      Unchanged        "          Submerged   50 nm  
                                              111 nm  
    16.00 BC 5423    
      Unchanged    
    20.00 BC 5194    
      Unchanged    
    21.30   Evening twilight.  
    22.15   Surfaced.  
           
    17.11.43 North Atlantic    
    00.00 BC 5165    
      NNW 3, Sea 1, Vis. 4 nm, clear, 1020 mb, +10°C    
    00.25   Moonrise.  
    04.00 BC 5139 Difference between dead reckoning and actual position after a navigation fix:  130°T, 12 nm.  
      SW 2, Sea 1, long Swell, clear, bright moonshine, Vis. 6 nm, 1022 mb, +7°C  
    10.25   Morning twilight.  
           
Sun and Moon Data 15.11.43
Sun and Moon Data 16.11.43
Sun and Moon Data 17.11.43
 
- 31 -
 
           
           
           
    continued      
    17.11.43 North Atlantic    
    12.00 BC 5145 Day's run:   Surfaced       99 nm  
      SSE 3, Sea 2, medium Swell, clear, bright moonshine, Vis. 6 nm, 1022 mb, +9°C        "          Submerged   31 nm  
                                            130 nm  
    12.08 Increasing low clouds Dived, depth A -50 meters.  
    16.00 BC 5172    
      6/10, low overcast and high    
    17.20   Listener reports sounds bearing 145°T. At periscope depth nothing distinguished.  Sounds shift very quickly.  
    18.05   Already in 58°T.  
    18.09   Surfaced, pursued for 10 nm at high speed in the direction of the sound.  Nothing seen.  
    19.00   Dived to listen.  Sounds now bearing 35°T.  
    19.11   Surfaced, pursued at high speed in 35°T for 15 nm.  Nothing seen, except for large gulls and whales, which suggests schools of herring.  That must have been the reason  for the sounds and the fast shifting.  A vessel with such a fast shift would always be in sight.  
         
    20.00 BC 5155  
      S 4, Sea 3, Vis. 10 nm, 5/10, high overcast, 1022 mb, +6°C  
    20.17   Dived, faint sound now bearing 310°.  
    21.30   Evening twilight.  
    22.00   Surfaced.  
    22.21   Incoming Radio Message 1922/17/278  
        If weather gear is hear report "Yes".  Add short weather report.  
           
    18.11.43 North Atlantic    
    00.00 BC 5182    
      SSE 5, Sea 3, clear Vis. 2 nm, 1020 mb, +8°C    
    01.20   Moonrise.  
    04.00 BC 5413 Difference between dead reckoning and actual position after a navigation fix:  341°T, 8 nm.  
      SSE 4, Sea 3, long Swell, 2/10, high overcast, Vis. 4 nm, bright moonshine, 1018 mb  
    07.30   The program time of the weather radio gear was not heard.  Own interference on the wavelength.  Program time will be monitored daily, as soon as heard will reported by Radio Message.  
    08.00 BC 5445    
      S 4, Sea 3, Vis. 4 nm, cloudy, bright moonshine, 1018 mb, +8°C    
    10.30   Morning twilight.  
    12.00 BC 5477 Day's run:   Surfaced       127 nm  
      SE 5, Sea 3, Vis. 8 nm, 9/10, high and low overcast, 1011 mb, +7°C        "          Submerged     20 nm  
                                            147 nm  
    13.17   Dived due to weather conditions, depth A -50 meters.  
    16.00 BC 5476    
      10/10 high, breaking up, low overcast    
    20.00 BC 5485    
    21.25 Unchanged Evening twilight.  
    22.55   Surfaced.  
           
    19.11.43 North Atlantic    
    00.00 BC 5491    
      ESE 6, Sea 5, Vis. 1 nm, medium-high overcast, 1006 mb, +15°C    
           
           
Sun and Moon Data 17.11.43
Sun and Moon Data 18.11.43
Sun and Moon Data 19.11.43
 
- 32 -
 
           
           
           
    continued      
    19.11.43 North Atlantic    
    02.15   Moonrise.  
    04.00 BC 5548    
      SSE 7, Sea 6, medium-high S-Swell, moonshine, low overcast, 1004 mb    
    08.00 BC 5557    
      Abating, 1005 mb    
    10.20   Morning twilight.  
    12.00 BC 5571 Day's run:   Surfaced       93 nm  
      Breaking up, low overcast, rain, Vis. 2 nm        "          Submerged   30 nm  
                                             123 nm  
    12.56   Dived due to weather conditions, depth A -30 meters.  
    14.47 BC 5496 Sound bearing in 295°T.  At periscope depth.  Bearing 210°T fast large 2-smokestack passenger steamer, bow right target angle 170°, range 5000 meters, course 220°.  
      Medium-high cumulus clouds, sunny, Vis. 10 nm  
   

14.58

 

15.55

  Steamer turns hard to port, shoots at periscope with artillery.  Must have seen a reflection of the sun off the periscope objective.  Enters a fog bank and disappears behind it.  Sound bearing was faint very quickly, disappeared in 183°T.  Pursuit hopeless, because the enemy is faster than me.  
    16.00 BC 5495    
    17.49 Unchanged, abating Surfaced, came to southerly course at increased speed.  In this sea area enemy air is to be expected in hours.  Remained on southerly course on the slight chance that the steamer would come in sight on a favorable zigzag.  
    18.21   Outgoing Short Signal 1552/19/205  
        Naval square BC 5496 fast independent SW course saw periscope.  
        NW 5, Sea 4, Vis. 12 nm, 1020 mb.  
    20.00 BC 5764    
      NW 5, Sea 3, medium Swell, 6/10, Vis. 12 nm, 1020 mb    
    2035   Detection on Alderney, dived, depth A -50 meters.  
    21.20   Evening twilight.  
    22.08   Surfaced.  
           
    20.11.43 North Atlantic    
    00.00 BC 5794    
      NNE 1, Sea 1, Vis. 3 nm, 4/10, high overcast, 1021 mb, +11°C    
    03.15   Moonrise.  
    04.00 BC 5173 Difference between dead reckoning and actual position after a navigation fix:  285°T, 6 nm.  
      NE 4, Sea 3, long Swell, 3/10, low overcast, Vis. 4 nm, 1016 mb, +9°C  
    08.00 BC 8186    
    10.20 Unchanged, 1027 mb Morning twilight.  
    12.00 BC 8461 Day's run:   Surfaced       133 nm  
      NE 6, Sea 4, low overcast, Vis. 10 nm, 1025 mb, +10°C        "          Submerged     23 nm  
                                             156 nm  
    16.00 BC 8483    
      Abating, 1023 mb    
           
Sun and Moon Data 19.11.43
Sun and Moon Data 20.11.43
 
- 33 -
 
           
           
           
    continued      
    20.11.43      
    20.00 BC 8729    
      NE 5, Sea 4, medium NE-Swell, low clouds, Vis. 10 nm, 1023, +14°C    
    21.13   Test dive.  
    21.20   Evening twilight.  
    22.05   Surfaced.  
    23.09   Detection on Alderney, dived, depth A -50 meters.  
           
    21.11.43 North Atlantic    
    00.00 BC 8751    
    00.16   Surfaced.  
    04.00 BC 7963    
      SE 5, Sea 4, E-Swell, low overcast, rain, Vis. up to 2 nm, greatly changing, +15°C, 1018 mb    
    08.00 BC 7952    
      Unchanged, 1016 mb    
    10.x0   Morning twilight.  
    11.17   Dived due to weather conditions, depth A -50 meters.  
    12.00 BC 7943 Day's run:   Surfaced       142 nm  
      low overcast, Vis. bad        "          Submerged       9 nm  
                                               151 nm  
    16.00 BC 7924    
      Low overcast, Vis. bad    
    20.00 BC 7922    
      Low overcast, Vis. bad    
    21.20   Evening twilight  
    22.04   Surfaced.  
           
    22.11.43 North Atlantic    
    00.00 BC 7691 Port diesel out of service, a piston must be put up due to crankshaft bearing damage, after this fault had already occurred at another bearing of this engine, and a spare bearing had been used there.  
      ESE 5, Sea 3, low overcast, showers, +15°C, Vis. up to 2 nm, 1017 mb  
        Cause:  Excessive engine load when the engine stalls when the sea is running.  After normal test run the suspension device broke 2 times. [illegible word] at piston.  Liner and casing.  
    00.47   Incoming Radio Message 1232/21/232:  Free to maneuver in entire present area.  To simulate several U-boats send a Short Signal weather report and a Radio Message daily.  Use various keyers [radio operators] and wavelengths.  
    02.02   Outgoing Radio Message in America I:  0113/22/241:  
        By reported bombs battery damage.  2 bow tubes not clear for submerged shot.  68 cbm, S 4, Sea 3, Vis. bad, rain, 1016 mb.  
    03.52   Incoming Radio Message 1307/21/253:  
        U-537, 538, 541, 542, 543, 544, 843:  Due to large valve overlap all Type 9c boats with C engines from DT Werft U-537 to 843 are severely impaired by a strong water entry in the diesel exhaust line and thereby into the engines at  
           
           
Sun and Moon Data 20.11.43
Sun and Moon Data 21.11.43
Sun and Moon Data 22.11.43
 
- 34 -
 
           
           
           
    continued      
    22.11.43   low speed without supercharger and even with low Sea State strong impairment.  At the moment remedy only possible by driving one side switched to charging with supercharger or diesel-electric drive with supercharger.  Adaptation measures are inwork.  
        See 10.10.43.     [engine fire]  
    10.25 Fog Morning twilight.  
    11.30   Sent Short Signal weather report on Ireland Circuit.  
    11.34   Dived due to weather conditions, depth A -50 meters.  
    12.00 BC 8155 Day's run:   Surfaced       95 nm  
      SSW 3, Sea 2, Vis. 5 nm, 10/10 high, 7/10 low overcast, rain showers        "          Submerged   33 nm  
                                           128 nm  
    16.00 BC 8128    
      Fog    
    20.00 BC 8123    
      Fog    
    21.20   Evening twilight.  
    23.25   Surfaced.  
           
    23.11.43 North Atlantic    
    00.00 BC 5789    
      SSW 5, Sea 2, long SW-Swell, 8/10, low overcast, Vis. 2 nm, 1013 mb, +13°C    
    04.00 BC 5782    
      S 3, Sea 2, long SW-Swell, low overcast, moonrise, rain, Vis. 3 nm, 1013 mb, +15°C    
    08.00 BC 5729    
      Vis. deteriorating, 1009 mb, +12°C    
    10.25   Morning twilight.  
    11.16   Dived due to weather conditions, depth A -50 meters.  
    12.00 BC 5495 Day's run:   Surfaced       82 nm  
      Low overcast, Vis. bad        "          Submerged   40 nm  
                                             122 nm  
    16.00 BC 5468    
      Unchanged 1007 mb    
    16.10   Surfaced to give Radio Message in accordance with task as the radio boat.  
    16.48   Outgoing Short Signal1647/23/268 confirmed.  
        Will begin return transit on the 26th of the current month.  
    17.07   Dived, depth A -50 meters.  
    20.00 BC 5463    
      Low overcast, Vis. bad    
    21.15   Evening twilight.  
    22.04   Surfaced.  
           
    24.11.42 North Atlantic    
    00.00 BC 5627    
      ENE 3, Sea 2, low overcast, Vis. up to 2 nm, 1002 mb, +10°C    
    04.00 BC 1994    
      SW 5, Sea 3, long SW-Swell, fog banks, low overcast, Vis. 500 meters, up to 1 nm, 997 mb    
    04.27   Outgoing Short Signal weather report on America I Circuit.  
    05.43   [illegible 5 lines concerning radio reception]  
        on Ireland Circuit very bad reception)  
           
Sun and Moon Data 22.11.43
Sun and Moon Data 23.11.43
Sun and Moon Data 24.11.43
 
- 35 -
 
           
           
           
    continued      
    25.11.43 [typo 24.11.43]    
    08.00 BC 1975    
    10.20 SW 5, Sea 4, low overcast, Vis. changing up to 2 nm, 997 mb, +5°C Morning twilight.  
    11.03 Dived due to weather conditions, depth A -50 meters.  
    12.00 BC 1895 Day's run:   Surfaced       89 nm  
      Low overcast, Vis. bad        "          Submerged   34 nm  
                                             123 nm  
    16.00 BC 1886    
      Low overcast, misty, rain, Vis. bad    
    20.00 BC 1884    
      Unchanged    
    21.10   Evening twilight.  
    22.48   Surfaced.  
    23.45   Incoming Radio Message 2004/25/292 Paragraph 2:  
        Report weather tonight.   [time group is probably 24 Nov]  
           
    24.11.43 North Atlantic  [typo 25.11.43]  
    00.00 BC 1884    
      NE 5, Sea 3, medium high overcast, Vis. about 2 nm, 996 mb, +6°C    
    04.00 BC 5244    
      ESE 4, Sea 3, long S-Swell, low overcast, rain, Vis. about 1 nm, 995 mb, +13°C    
    08.00 BC 2878    
      Unchanged, 989 mb    
    09.40   Outgoing Short Signal weather report on Coastal frequency in the area of deceptive radio traffic.  
    10.20   Morning twilight.  
    11.08   Dived due to weather conditions, depth A -50 meters.  
    12.00 BC 2795 Day's run:   Surfaced       94 nm  
      Low overcast, misty        "          Submerged   34 nm  
                                             128 nm  
    16.00 BC 2794    
      Fog    
    20.00 BC 2785    
      Low overcast, Vis. bad    
    21.15   Evening twilight.  
    22.04   Surfaced.  
           
    26.11.43 North Atlantic    
    00.00 BC 2775    
      WNW 4, Sea 2, low overcast, Vis. up to 2 nm, 997, +13°C    
    03.58   Outgoing Short Signal weather report on America II Circuit was not heard, to  
    04.00 BC 4232  
    04.10 NE 5, Sea 4, long NE-Swell, strong marine phosphorescence, 8/10, low overcast, Vis. up to 2 nm, 994 mb, +6°C resend sent on America I, likewise was not heard.  
      With the Radio Message it was noted that the interference of short wave radio traffic continues.  
    08.00 BC 4319    
      Unchanged    
    10.20   Morning twilight  
    11.00   Dived due to weather conditions, depth A -50 meters.  
    12.00 BC 4356 Day's run:   Surfaced       84 nm  
      Low overcast, Vis. bad        "          Submerged   36 nm  
                                             120 nm  
    16.00 BC 4365    
      Low overcast, Vis. 6 nm    
    16.55   Several detonations far off (aircraft bombs).  
           
           
           
Sun and Moon Data 24.11.43
Sun and Moon Data 25.11.43
Sun and Moon Data 26.11.43
 
- 36 -
 
           
           
           
    continued      
    26.11.43 North Atlantic    
    20.00 BC 5147    
      Unchanged    
    21.10   Evening twilight.  
    22.03   Surfaced.  
           
    27.11.43 North Atlantic    
    00.00 BC 5173    
      N 5, Sea 3, Vis. 4 nm, 8/10, low overcast, +8°C, medium-high Swell, 1001 mb    
    02.25   Outgoing Radio Message 0150/27/214:   Clear text weather report given on Ireland Circuit.  
        As part of the deceptive radio traffic sent clear text weather report because in the last days seeing weather reports given repeatedly at short intervals gives the enemy the impression that I am a designated weather boat.  
    04.00 BC 5196    
      NNW 6, Sea 5, medium NW-Swell, 9/10, low overcast, Vis. about 3 nm, 1003 mb    
    08.00 BC 5288    
      Abating    
    10.20   Morning twilight.  
    12.00 BC 5539 Day's run:   Surfaced       108 nm  
      Unchanged, 1009 mb, +12°C        "          Submerged      31 nm  
                                               139 nm  
    16.00 BC 5628    
      Abating further, 1014 mb, changing cloudiness    
    20.00 BC 5636    
      Unchanged, +11°C    
    20.35   Evening twilight.  
    21.49   Test dive.  
    22.35   Surfaced.  
    22.47   Outgoing Short Signal on America I b Radio Circuit.  Have begun return transit due to fuel inventory.  Was not heard, the same on America I a Circuit.  
           
    28.11.43 North Atlantic    
    00.00 BC 6424    
      N 1, Sea 1, Vis. 3 nm, 8/10 medium-high overcast, 1015 mb, +10°C    
    01.15   Difference between dead reckoning and actual position after a navigation fix:  261°T, 9 nm.  
    04.00 BC 6438    
      SW 2, Sea 1, Vis. 4 nm, 9/10, 1016 mb, +12°C    
    06.47   On Ireland Circuit sent Short Signal   Have begun return transit due to fuel inventory.  Was confirmed.  
    08.00 BC 6519    
    10.15 Increasing cloudiness, 1017 mb, +10°C Morning twilight.  
    12.00 BC 6538 Day's run:   Surfaced       177 nm  
      S 3, Sea 1, Vis. 15 nm, very high clouds, 2/10, 1018 mb, +18°C        "          Submerged       3 nm  
                                             180 nm  
    16.00 BC 6619    
      Unchanged    
           
Sun and Moon Data 26.11.43
Sun and Moon Data 27.11.43
Sun and Moon Data 28.11.43
 
- 37 -
 
           
           
           
    continued      
    28.11.43 North Atlantic    
    20.00 BC 6638    
      Increasing cloudiness, Vis. 12 nm, freshening    
    20.30   Evening twilight.  
    23.28   Incoming Radio Message 2208/28/245:  
        From 29 November 08.00 hours switch to Ireland Circuit.  Tonight report weather by Short Signal.  
           
    29.11.43 North Atlantic    
    00.00 BD 4419    
      SE 6, Sea 5, Vis. 3 nm, medium-high overcast, 1018 mb, +17°C    
    03.01   Outgoing Short Signal weather report.  
    04.00 BD 4438    
      SSE 5, Sea 3, long S-Swell, low overcast, Vis. 3 nm, 1018 mb, +15°C    
    08.00 BD 4543 Switched to Ireland Circuit.  
      Unchanged    
    10.10   Morning twilight.  
    12.00 BD 4562 Day's run:   Surfaced  184 nm  
      SE 6, Sea 4, medium-high SE-Swell, low overcast, Vis. 12 nm, 1017 mb, +17°C    
    16.00 BD 4643    
      SE 5, Sea 4, low overcast, rain showers, Vis. 12 nm, 1015 mb, +16°C    
    20.00 BD 4653 Evening twilight.  
      SE 6, freshening, Sea 5, low overcast, 1014 mb, +17°C, Vis. 6 nm    
    21.00   Test dive.  
        Piston in cylinder 8 of the port diesel put up.  
    23.00   Surfaced.  
           
    30.11.43 North Atlantic    
    00.00 BD 4663    
      SE 9, Sea 6, low overcast, Vis. about 1 nm, 1012 mb, +15°C    
    04.00 BD 5451    
      SE 7, Sea 6, medium-high Swell, low overcast, showers, Vis. about 2 nm, 1010 mb, +15°C    
    08.00 BD 5462    
      SSE 8, abating, Sea 7, high Swell, low overcast, rain, Vis. about 1 nm. 1009 mb, +16°C    
    09.45   Morning twilight.  
    12.00 BD 5543 Day's run:   Surfaced       148 nm  
      Abating further, Vis. 8 nm, 1010 mb        "          Submerged       6 nm  
                                             154 nm  
    16.00 BD 5561    
      Increasing cloudiness, Vis. decreasing, +14°C    
    20.00 BD 5615 Difference between dead reckoning and actual position after a navigation fix:  346°T, 12 nm.  
      SSW 5, Sea 4, high S-Swell, 8/10, high overcast, Vis. 8 nm, 1011 mb, +16°C  
    20.10   Evening twilight.  
    20.15   Test dive.  
    20.54   Surfaced.  
    21.24   Incoming Radio Message 2002/30/156: Paragraph 1:  
        Give Short Signal weather report tonight.  
           
           
Sun and Moon Data 28.11.43
Sun and Moon Data 29.11.43
Sun and Moon Data 30.11.43
 
- 38 -
 
           
           
           
           
    01.12.43 North Atlantic    
    00.00 BD 5625    
      SSW 4, Sea 3, changing medium-high overcast, Vis. about 1 nm, 1012 mb, +15°C    
    03.14   Outgoing Short Signal weather report.  
    04.00 BD 6414    
      SW 4, Sea 3, medium S-Swell, 5/10, low overcast, misty, Vis. 1 nm, 1013 mb, +15°C    
    08.00 BD 6425    
      Unchanged, 1016 mb    
    09.30   Morning twilight.  
    12.00 BD 6514 Day's run:   Surfaced       172 nm  
      SSW 4, Sea 2, Vis. 10 nm, 7/10, medium-high overcast, 1017 mb, +17°C        "          Submerged       2 nm  
                                             174 nm  
    16.00 BD 6529    
      NNW 4, Sea 3, Vis. 8 nm, low overcast, rain showers, 1018 mb, +15°C    
    19.50   Evening twilight.  
    20.00 BD 6617    
      N 5, shifting clockwise, unchanged    
           
    02.12.43 North Atlantic    
    00.00 BD 6637    
      ENE 4, Vis. 1 nm, 1020 mb, medium-high overcast    
    04.00 BE 4434 Difference between dead reckoning and actual position after a navigation fix:  82°T, 20 nm.  
      N 4, Sea 3, Vis. about 3 nm, 5/10, low overcast, 1020 mb, +12°C  
    08.00 BE 4516    
      Unchanged    
    09.10   Morning twilight.  
    12.00 BE 4536 Day's run:   Surfaced  219 nm  
      Increasing cloudiness, Vis. 10 nm, 1021 mb    
    16.00 BE 4626    
      Freshening, Vis. decreasing    
    19.30   Evening twilight.  
    20.00 BE 5415    
      NW 7, Sea 6, high NW-Swell, low overcast, Vis. 6 nm, 1017 mb, +12°C    
    23.57   Moonset.  
           
    03.12.43 West of the outer Bay of Biscay    
    00.00 BE 5435    
      Increasing cloudiness. Vis. about 2 nm, 1014 mb    
    04.00 BE 5528    
      NNW 8, squalls, Sea 7, high NW-Swell, 7/10 low overcast, Vis. about 1 nm, 1010 mb, +12°C    
    08.00 BE 5617    
      NNW 9, Vis. up to 4 nm, 8/10 low overcast, 1006 mb, +12°C    
    08.06   Dived to proceed submerged at depth A -40 meters.  
        (In the Bay of Biscay from 20°W proceed submerged by day)
    08.30   Morning twilight.  
           
           
Sun and Moon Data 01.12.43
Sun and Moon Data 02.12.43
Sun and Moon Data 03.12.43
 
- 39 -
 
           
           
           
    continued      
    03.12.43 West of the outer Bay of Biscay    
    12.00 BE 5619 Day's run:   Surfaced       195 nm  
      Unchanged, Vis. improving        "          Submerged     12 nm  
                                               207 nm  
    16.00 BE 5628    
      Unchanged    
    19.15   Evening twilight.  
    20.00 BE 5629    
      Unchanged    
    20.20   Surfaced, transit continued on the surface.  
    20.22   Incoming Radio Message 1812/3/108:  
        From 4 December 08.00 hours switch to Coastal Circuit.  
           
    04.12.43 Northwestern Bay of Biscay    
    00.00 BE 6442    
      Unchanged, 3/10, medium-high overcast, Vis. about 2 nm, moonshine    
    00.51   Moonset.  
    04.00 BE 6456 Difference between dead reckoning and actual position after a navigation fix:  258°T, 16 nm.  
      N 8, Sea 7, high N-Swell, 4/10, low overcast, Cumulus clouds, Vis. about 3 nm, 1010 mb, rain squalls, +11°C  
    08.00 BE 6545    
      Abating    
    08.06   Dived to proceed submerged at depth A -40 meters.  
    08.15   Morning twilight.  
    12.00 BE 6554 Day's run:   Surfaced         97 nm  
               "          Submerged     35 nm  
                                               132 nm  
    16.00 BE 6556    
    19.00   Evening twilight.  
    20.00 BE 6565    
    22.36   Surfaced, continued transit on the surface.  
           
    05.12.43 Northwestern Bay of Biscay    
    00.00 BE 6644    
      NE 7, Sea 6, medium-high NE-Swell, low overcast, Vis. about 1 nm, 1008 mb, +15°C    
    01.47   Moonset.  
    04.00 BE 6664    
      NE 6, Sea 5, Vis. about 1 nm, medium-high NW-Swell, 6/10, low overcast, rain squalls, Cumulus clouds, 1008 mb    
    08.00 BF 4445 Morning twilight.  
      Unchanged Difference between dead reckoning and actual position after a navigation fix:  250°T, 13 nm.  
    08.22   Dived, proceeded submerged at depth A -40 meters.  
    12.00 BF 4454 Day's run:   Surfaced         92 nm  
      Abating        "          Submerged     44 nm  
                                               136 nm  
    16.00 BF 4455    
    18.50   Evening twilight.  
    20.00 BF 4464    
           
           
Sun and Moon Data 03.12.43
Sun and Moon Data 04.12.43
Sun and Moon Data 05.12.43
 
- 40 -
 
           
           
           
           
    06.12.43 Northern Bay of Biscay    
    00.00 BF 4466 Surfaced, continued transit on the surface.  
    02.50   Moonset  
    04.00 BF 4566    
      NE 5, Sea 4, medium N-Swell, Vis. about 1 nm, 8/10 low overcast, rain squalls, strong marine phosphorescence, 1002 mb, +12°C    
    07.10   Dived, proceeded submerged at depth A -40 meters.  
    08.00 BF 4644    
      NE 4, Sea 3, low overcast, Vis. about 1 nm, rain squalls, 1001 mb, +13°C    
    08.07   Morning twilight.  
    12.00 BF 4645 Day's run:   Surfaced       67 nm  
               "          Submerged   48 nm  
                                              115 nm  
    16.00 BF 4646    
    18.35   Evening twilight.  
    19.48   Surfaced to send a Radio Message.  
    19.54   Outgoing Short Signal 1954/6/85:  
        Position 36 hours off rendezvous point with escort, request bearing signals from Lorient transmitter I.    U-537.  
    20.00 BF 4657 Difference between dead reckoning and actual position after a navigation fix:  248°T, 6 nm.  
      NE 3, Sea 3, Vis. 3 nm, 2/10, medium-high overcast, bright moonshine  
    20.10   Dived, proceeded submerged at depth A -40 meters.  
           
    07.12.43 Bay of Biscay    
    00.00 BF 4658    
    01.02   Surfaced.  
    03.43   Moonset.  
    04.00 BF 5447    
      NE 4, Sea 3, long NE-Swell, 5/10, high overcast, Vis. up to 5 nm, 1006 mb, +12°C    
    06.07   Dived, proceeded submerged at depth A -40 meters.  
    08.00 BF 5458    
      Low overcast, Vis. about 1 nm    
    08.05   Morning twilight.  
    12.00 BF 5467 Day's run:   Surfaced       58 nm  
               "          Submerged   41 nm  
                                            199 nm  [typo 99 nm]  
    16.00 BF 5469    
    18.25   Evening twilight.  
    20.00 BF 5547    
    22.26   Incoming Radio Message 1540/7/94:  
        5 M-boote undertake a diversion cruise in the night of 8 December outbound on "Liebeslauft" inbound "Libesbank" and passing "Liebe" at 00.00 hours.  
                                                                  F.d.U. West.  
    22.52   Incoming Radio Message 0903/7/90:  
        To U-537:  On 8 December 08.00 hours escort positioned Point "Leben".  Lorient bearing transmitter I runs from 20.00 - 07.00 hours.  
    23.10 BF 5546 Sound bearing 0°T, at periscope depth nothing seen.  
    23.59 BF 5546 Surfaced.  
           
           
Sun and Moon Data 06.12.43
Sun and Moon Data 07.12.43
 
- 41 -
 
           
           
           
           
    08.12.43 Bay of Biscay    
    00.00 BF 5546    
      ESE 3, Sea 2, overcast, Vis. 2 nm    
    00.25 9/10 low overcast, 1006 mb Fishing vessel bearing 340°T, white light.  
    00.38   Brief detections.  
    00.54 BF 5551 Fishing vessel abeam to port.  
    01.04   Brief detection.  
    01.13   Deployed Aphrodite.  
    01.20          "              "  
    01.45   Brief detection.  
        The previous detections were all found to be impulses of the "Atlas" Echolotes [depth sounder].  
        The volume increases with increasing water depth.  
    04.40 Moonset    
    05.00   Fishing vessel.  
    08.00 Point "Leben" Convoy intake.  
      Lorient Made fast Skorff Bunker.  
        Day's run:   Surfaced       81 nm  
               "          Submerged   36 nm  
                                              117 nm  
           
        Distance covered - 9387 nm.  
        On board, 8 December 1943.  
                                   
                                Kapitänleutnant and Kommandant  
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
Sun and Moon Data 08.12.43

Appendices to U-537's KTB - click on the text at left to proceed to the documents
Radio Excerpt of the Radio Log
   
Sketch Sketch of the deployment of the weather transmitting gear

 

 
 
                                    
 
Comments of the Befehlshabers der Unterseeboote
 
 
on the K.T.B. of "U 537" (Schrewe) from 27.1. - 8.12.1943.
 
     
          First patrol of the Kommandant with a new boat!  
  The special task was well considered and correctly executed.  The subsequent independent operation in the area of the Newfoundland Bank brought no results.  Fortunately several aircraft attacks were out maneuvered.  
  To 19 November:  With a bit earlier detection of the sound bearing and faster "Go to periscope depth" there was an opportunity here for a fan.  The periscope usage must have been very careless, since the periscope can scarcely be recognizable by a steamer at 5000 meters even with long-duration use.  
          The lessons of this patrol will be very valuable for the Kommandant and crew.  Otherwise nothing to note.  
  Accredited Success:  Weather transmitting gear deployed.  
     
                                                          for the Befehlshaber der Unterseeboote  
                                                          - The Chief of the Operations Department -  
     
     
     
 


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