U-186 - 1st War Patrol

Translation by Jerry Mason

Departed
Date
Arrived
Date
Days at Sea
Kiel
31 December 1942
Lorient
5 March 1943
65

 

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

 

Ships Hit
Date
KTB Time
Position
Ship
Tons
Nationality
Convoy
11 Jan 43
00.33 - 01.45
57°33'N, 20°12'W
OCEAN VAGABOND
7,174
British
 
23 Feb 43
07.33
46°21'N, 35°45'W
HASTINGS
5,401
American
 
23 Feb 43
07.46 - 13.54
46°21'N, 35°45'W
EULIMA
6,207
British
 
     
 Total = 18,782
   
Note:  The positions in the table above and in the Google Earth patrol summary are derived from the KTB and in many cases do not match those set forth in authoritative references such as Jürgen Rohwer, Axis Submarine Successes of World War Two or the Uboat.net website.  The goal here is to present the picture relative to the U-boat and not the absolute position that the ship was attacked or sank.


 
 
                                                             
         
         
           
           
                               
           
     
                            K  r  i  e  g  s  t  a  g  e  b  u  c  h
                            -=-=-=-=-=-=-=-=-=-=-=-=-=-
 
                                               of
 
                              Unterseebootes    "U  186  "
                             -=-=-=-=-=-=-=-=-=-=-=-=-
           
           
      Kommandant        :    Kapitänleutnant    H  e  s  e  m  a  n  n  .  
           
      Beginning              :    10 July 1942.  
           
      Concluding           :    5 March 1943.  
           
                                                -.-.-.-.-.-  
           
     
Distribution           :      
Oberkommando der Kriegsmarine   Copy No. 1 and 2
Befehlshaber der Unterseeboote      "       " 3
Kommandierender Admiral der Unterseeboote      "       " 4
Führer der Unterseeboote West      "       " 5
10. Unterseebootsflottille      "       " 6
27. U-Flottille for 2. U.L.D. and 25, U-Flottille      "       " 7
Agru-Front, Kaptlt. Jebsen for 1. U.L.D.,      "       " 8
                  24. and 26. U-Flottille      
       
Enclosures           :      
1 Track chart with sketches To    "       " 1, 3, 4, 5, 6.
7 Torpedo firing reports   "    "       " 3, 4, 5, 6.
1 Excerpt of the Radio Log   "    "       " 3, 4, 5, 6.
10 Barograph strips   "    "       " 3.
 
           
                           
           
        © U-boat Archive 2014  - all rights reserved  
Click the flag to view the above page from the original German KTB
 
- 3 -
 
           
           
           
           
    10.07.42 Bremen Commissioning.  
    11.07.42     " Provisions loading.  
    12.07.42 Weser Training cruise on the Weser.  
    13.07.42 Bremen U.A.K. - trim test.  
    14. - 15.07.42     " Took over the boat.  
    16. - 17.07.42   Transfer cruise to Kiel.  
    18.07. - 05.08.42 Kiel Acceptance of the boat by U.A.K.  
    06.08.42   Transit to Stettin.  
    07.08.42 Stettin Stowage of the boats cargo with the 4th U-Flottille  
    08. - 09.08.42   Transit to Rønne.  
    10.08.42 Buoy field Hasle Rønne Submerged sound trials.  
    11. - 12.08.42   Transit to Danzig.  
    12. - 17.08.42 Danzig Acceptance of the boat by U.A.G. I.  
    18. - 21.08.42      "      Holm Shipyard Completion of minor shipyard work.  
    22. - 23.08.42 Danzig Independent training.  
    24.08.42   Transit to Gotenhafen.  
    24. - 27.08.42 Gotenhafen Testing by the T.E.K.  
    27.08.42   Transit to Hela  
    27.08. - 07.09.42 Hela Training with the Agru-Front.  
    07.09.42   Transit to Pillau.  
    08.09.42   Transit to Königsberg.  
    08. - 12.09.42 Königsberg Repair of cracked battery cells.  
      Over charging in the Schichau Shipyard.  
    12.09.42   Transit to Pillau.  
    13. - 30.09.42 Pillau Independent training, torpedo and artillery shooting with the 26. U-Flottille.  
    30.09.42   Transit to Königsberg.  
    01. - 02.10.42 Königsberg Minor repairs to the periscope optics and the E-compressor in the Schichau Shipyard.  
    02.10.42   Transit to Pillau.  
    03. - 09.10.42 Pillau Remaining torpedo shooting with the 26. U-Flottille.  
    10.10.42   Transit to Königsberg.  
    10. - 13.10.42 Königsberg Overhaul of the E-compressor and the starboard exhaust gas manifold in the Schichau Shipyard.  
    13.10.42   Transit to Gotenhafen.  
    14. - 17.10.42 Gotenhafen Independent training.  
    18. - 31.10.42 Baltic Participation in tactical training with the 27. U-Flottille.  
    01.11.42   Transit to Swinemünde.  
    02.11.42   Transit to Stettin.  
    02.11. - 08.12.42 Stettin Final adjustment and overhaul at the "Oderwerk" in Stettin.  
    09.12.42     " Torpedo loading.  
    10.12.42     " Provisions loading.  
    11. - 13.12.42     " Took over the boat.  
    14. - 15.12.42   Transit to Hela.  
    15. - 16.12.42 Hela Diving training with the Ausbildungsgruppe U-Boote Front.  
    16..12.42   Transit to Gotenhafen.  
    17.12.42   Transit to Rønne.  
    18.12.42 Rønne    
    Hasle buoy field Submerged sound trials.  
    19.12.42   Transit to Kiel.  
    20. - 29.12.42 Kiel Work on the forward battery construction hatch, the starboard exhaust gas valve and E-compressor.  
    Deutsche Werk  
    30.12.42 Kiel Radio direction finder calibration, degaussing.  
           
 
 
- 4 -
 
           
           
           
           
    31.12.42 Baltic Kiel The patrol takes place under Operations Order No. 53.  
    08.00   Put to sea with "U-226, 303".  
    11.18   Taken in convoy.  
    12.00   Day's run Surfaced:  35 nm.  
           
    01.01.43 Great Belt    
    12.00 WSW 2, Sea 1-2, 3/10, Vis. 12 nm Day's run Surfaced:  209.5 nm.  
    13.23   Land-based aircraft comes in sight bearing 300°T, range = 20000 meters, northerly course, anti-aircraft weapons ready.  
    13.36   Aircraft out of sight bearing 320°T.  
    14.02   Unknown land-based aircraft in sight, bearing 290°T, range = 20000 meters, northerly course, anti-aircraft weapons ready.  
    14.13   Aircraft passes out of sight bearing 320°T.  
    16.00      
           
    02.01.43 Skagerrak    
    02.24 Kristiansand-Marviken Made fast alongside "U-226" for fuel supply.  
      NNE 2, Sea 1-2, 9/10, Vis. 14 nm    
    10.00 Kristiansand Put to sea.  
    12.10   Taken in convoy.  
    14.08   Unknown land-based aircraft bearing 270°T, easterly course, range = 20000 meters.  Anti-aircraft weapons ready.  
    14.15   Aircraft out of sight bearing 150°T.  
    14.54   Aircraft in sight bearing 100°T, westerly course, range = 18000 meters, made out as Ju 52.  Anti-aircraft weapons ready.  
    15.06   Aircraft with westerly course bearing 70°T, range 20000 meters, made out as "He 111".  Anti-aircraft weapons ready.  
    16.00   Released from convoy.  Set off to the west at HF course 260°.  
    18.43   Test dive.  Deep dive test to depth A +40 meters, found minor leaks which were repaired on the surface.  
    20.23   Surfaced.  Course 32°, LF diesel-electric.  
    21.28   Fu.M.B. detection on 235 cm, 600 Hz, horizontally polarized.  Crash dive depth A -40 meters.  
    22.05   Surfaced.  
           
    03.01.43 North Sea    
    08.00 W 2, Sea 2, medium-high long Swell, overcast (hail) Steered on course 358° to the north.  
    08.45   Crash dive for training.  Proceeded submerged at depth A -50 meters.  
    12.00   Day's run  Surfaced:       147.5 nm  
               "        Submerged:     12.5 nm  
    16.48   Surfaced.  
    18.27   After charging the boat submerges again because  
        1)  With steaming against the sea there was heavy fuel consumption.  
        2)  Fu.M.B. could not be deployed because the conning tower hatch must be closed due to the overcoming seas.  
        Proceeded submerged depth A -30 meters.  
           
Sun and Moon Data 31.12.42
Sun and Moon Data 01.01.43
Sun and Moon Data 02.01.43
Sun and Moon Data 03.01.43
 
- 5 -
 
           
           
           
           
    04.01.43 North Sea    
    00.00   Surfaced.  Has become calmer, continued on the surface.  
    01.29   Incoming Radio Message 1754/3/46:  (Paragraph 3)  Hessemann, Borchers, Heine tomorrow 08.00 hours switch to "Ireland" Circuit.  
    08.00 Difference between dead reckoning and actual position after a navigation fix:  8°T, 15 nm  
    08.30 AF 8784 Proceeded submerged at depth A -40 meters.  
    12.00 AF 8757 Day's run  Surfaced:       85 nm  
      Lat.:    61°12.5'N        "        Submerged:   34.3 nm  
      Long.:   3°32.2'E    
    16.00 AF 8746    
    16.50 AF 8743 Surfaced, continued on the surface.  
    20.00 AF 7695    
           
    05.01.43 North Sea    
    00.00 AF 7662    
    04.00 AF 8174    
    08.00 AF 7339    
      NNE 1, Sea 0-1, light Swell, Vis. 4 nm, 6/10    
    08.54 AF 7336 Test dive, proceeded submerged at depth A -40 meters.  
    12.00 AF 7333 Day's run  Surfaced:       125.5 nm  
      Lat.:    63°36'N        "        Submerged:     21.0 nm  
      Long.:   2°37'E    
    12.40 AF 4999 Surfaced, continued on the surface.  
    13.30 AF 4996 Crash dive for aircraft bearing 250°T, range = 15000 meters, altitude 200 meters.  Type and course not recognized.  Depth A -20 meters.  
    13.59 AF 4996 Crash dive.  [typo for surfaced]  
    16.00 AF 4695 Continued to head for AF 44 in accordance with Outbound Orders.  Difference between dead reckoning and actual position after a navigation fix:  3.8°T, 9 nm  
    20.00 AF 4925    
           
    06.01.43 North Sea    
    00.00 AF 4594    
    04.00 AF 4548    
    07.14 AF 4456 Test dive.  
    08.00 AF 4456 Surfaced, difference between dead reckoning and actual position after a navigation fix:  138°T, 8 nm  
    12.00 AF 4446 Day's run  Surfaced:       185 nm  
      Lat.:    64°57'N        "        Submerged:       4 nm  
      Long.:   3°30'W    
      N 2-3, Sea 1-2, 8/10, medium Swell, Vis. 12 nm    
    16.00 AE 6664    
    16.45 AE 6655 Came to course 233° and HF.  Headed for AL 31.  HF was run to possibly pass the corner between the Faroes and Iceland  
    20.00 AE 6677    
           
    07.01.43      
    00.00 AE 6852    
    04.00 AE 6796    
    08.00 AE 9127    
      NE 2, Sea 2, 8/10, Vis. 1-2 nm    
    08.57 AE 9142 Test dive.  Continued submerged, to not be surprised by aircraft with the low clouds and bad visibility.  
    12.00 AE 9144    
           
Sun and Moon Data 04.01.43
Sun and Moon Data 05.01.43
Sun and Moon Data 06.01.43
Sun and Moon Data 07.01.43
 
- 6 -
 
           
           
           
    continued      
    07.01.43      
    12.00 Lat.:    63°18'N Day's run  Surfaced:       210.7 nm  
      Long.:  10°05'W        "        Submerged:       9.5 nm  
    16.00 AE 8369    
    17.47 AE 8393 Surfaced.  Continued on the surface.  
    20.00 AE 8389    
    20.37 AE 8388 Incoming Radio Message 1840/7/197:  (Paragraph 4)  Borchers, Hesemann, Heine, Döhler, head for square AL 47.  
           
    08.01.43 West of the Faroes    
    00.00 AE 8642 Continued to AL 47 at economical transit speed.  
    04.00 AE 8595    
    08.00 AE 8831    
    09.03 AE 8826 Test dive.  
    10.43 AE 8826 Surfaced.  
    12.00 AE 8829 Day's run  Surfaced:       120 nm  
      Lat.:    61°48'N        "        Submerged:       2 nm  
      Long.:  13°51'W    
      SSE 6, Sea 5-6, overcast, Vis. 8 nm    
    16.00 AE 8854    
    17.25 AE 8857 Crash dive, continued submerged, to with the high Sea State it is more efficient.  Depth A -40 meters.  
    20.00 AE 8849    
           
    09.01.43 North Atlantic    
    00.00 AE 8875 Surfaced.  It has gotten calmer.  Continued on the surface.  
    03.45   Incoming Radio Message 1908/8/111:  Order from 9 January 08.00 switch to "Diana" Circuit.  
    04.00 AM 1117    
    08.00 AL 3267    
    10.00 AL 3272 Difference between dead reckoning and actual position after a navigation fix:  281°T, 27 nm  
    12.00 AL 3274 Day's run  Surfaced:       116 nm  
      Lat.:    60°09'N        "        Submerged:     17 nm  
      Long.:  17°18'W    
    16.00 AL 3332    
    18.16 AL 3337 Incoming Radio Message 1757/9/789:  "Karpf" reports convoy naval square AK 3838, course 150°.  
    18.55 AL 3329                                  Operated on the convoy at GF, because course to the convoy is a deviation of only 10° from the previous course.  
    20.01 AL 3355 Incoming Radio Message 1821/9/703:  (Paragraph 3)  Borchers, Hesemann, Heine operate on "Karpf" convoy, confirming the measures taken at 18.16 hours.  
    20.37   Incoming Radio Message 1815/9/704:  Independent reported as convoy.  
    20.44 AL 3357 Incoming Radio Message 2007/9/705:  (Paragraph 3)  Hesemann, Borchers, Heine continue to head for objective square AL 47 at economical transit speed.  
           
    10.01.43 North Atlantic    
    00.00 AL 3512    
    04.00 AL 2638    
    08.00 AL 2685    
    08.56   Test dive.  
    11.12 AL 2679 Surfaced.  
    12.00 AL 2813    
           
           
Sun and Moon Data 07.01.43
Sun and Moon Data 08.01.43
Sun and Moon Data 09.01.43
Sun and Moon Data 10.01.43
 
- 7 -
 
           
           
           
    continued      
    10.01.43      
    12.00 Lat.:    58°15'N Day's run  Surfaced:       153 nm  
      Long.:  20°29'W        "        Submerged:     5.6 nm  
    16.00 AL 2763    
      S 5, Sea 3-4, 9/10, Vis. 12 nm    
    19.20                                                  During the evening twilight shadow in sight bearing 205°T, range = 4000 meters by surprise out of a black rain squall.  Because the shadow is relatively well out, but the type can still not be distinguished and the boat cannot remain unnoticed with certainty, submerged with Crash dive to depth A +0 meters.  
    19.45 AL 2767                                   Surfaced, because  by sound bearings the vessel has shifted astern.  Nothing seen after surfacing.  In the meantime it has grown quite dark.  Pursued in the direction of the last sound bearing.  At times the visibility is below 300 meters in rain squalls.  
    20.23 AL 2792 Shadow is still not in sight, therefore dived to listen.  Sound bearing in 150°T.  
    20.31 AL 2792                                   Surfaced and pursued in the direction of the last sound bearing.  Visibility has still not improved, nothing is seen.  
    21.12 AL 2793 Dived again to listen.  Sound bearing in 130°T.  
    21.24 AL 2793                                   Surfaced.  Pursued in the direction of the last sound bearing.  Visibility has grown better, rain showers have let up.  
    21.41 AL 2871                                   Shadow in sight again bearing 113°T, range = 6000 meters.  Maneuvered ahead for attack.  In so doing the shadow is distinguished as a medium freighter.  
    22.44 AL 2872 3-fan from tubes 1, 2 and 4.  Miss.  Target speed 10 knots, target angle = 80°, lead angle = 20°, depth 3 meters, torpedo speed 30 knots, estimated range = 2000 meters.  Miss unexplained because a 3-fan at 2000 meters would probably have overcome the inexactness in estimation.  
      SSE 2-3. Sea 1-2, overcast, Vis. 1-4 nm, no marine phosphorescence, light Northern Lights  
      Possibly shortly before or at the shot the enemy turned 30° in the context of his zigzags.  Maneuvered ahead for a new attack.  
    22.55 2 detonations heard, probably detonation of the torpedoes at the end of the run.  
    22.49 AL 2873 Incoming Radio Message 2111/10/724:  Borchers, Hessemann, Kremser, Heine, Soden, Kessler occupy patrol line at economical speed from AL 7411 to 7849.  Boats form Group "Habicht".  
    23.54 AL 2881                                   Dived for submerged night attack.  The decision to attack submerged was taken to allow the boat to approach closer than with the precious shot in the now prevailing bright night.  
           
    11.01.43 North Atlantic    
    00.33 AL 2882 Submerged 2-fan from tubes 1 and 3, target speed = 12 knots, target angle = 60°, lead angle = 20°, depth = 2 meters, torpedo speed = 30 knots, estimated range = 800 meters.  After 42 seconds detonation.  Hit under the bridge.  
      SSE 2-3, Sea 1-2, 9/10, no marine phosphorescence, Vis. 3 nm  
    00.37 AL 2882                                  Surfaced.  Freighter lies stopped, had set out boats and sends emergency signal on the 600-meter wave with position.  Freighter estimated at 6000 GRT.  
    00.59 AL 2882                                  Coup de grace from tube 5, because freighter was not noticeably sinking.  Hit about forward 40 meters after 65 seconds.  Freighter apparently floats on cargo, only settles a little deeper.  
    01.45 Freighter lies on a even keel and has only settled a little.  2nd coup de grace from tube 2, hit about aft 20 meters after 65 seconds.  Shelling seemed inadvisable, since in spite of set out boats lights were still frequently seen on deck.  
           
           
Sun and Moon Data 10.01.43
Sun and Moon Data 11.01.43
 
- 8 -
 
           
           
           
    continued      
    11.01.43      
    03.07 Finally the freighter sinks over the forestem.  The search for the lifeboats which had now drifted out of sight remained without results.  
    03.40 Moved off at 2 x HF and headed for square AL 7443, in accordance with operational orders received at 22.49 hours.  
    04.40 AL 2887 Outgoing Radio Message 0344/11/729:  Reported sinking.  
    08.00 AL 2993 Went to economical speed.  
    09.55 AL 2997 Test dive.  
    10.12 AL 2997 3 detonations at long range.  
    11.10 AL 2997 Surfaced.  Difference between dead reckoning and actual position after a navigation fix:  210°T, 17 nm.  
    12.00 AL 5212 Day's run  Surfaced:       227 nm  
      Lat.:    56°21'N        "        Submerged:     12 nm  
      Long.:  21°40'W    
      SW 2, Sea 1, light Swell, 4/10, Vis. 10 nm    
    16.00 AL 5168    
    18.20 AL 5182 Difference between dead reckoning and actual position after a navigation fix:  341°T, 13 nm.  
    20.00 AL 5179    
           
    12.01.43 North Atlantic    
    00.00 AL 5441    
    04.00 AL 4591    
    08.00 AL 4822    
    10.18 AL 4843 Test dive, proceeded submerged to deice the main vents.  
    12.00 AL 4843 Day's run  Surfaced:       133 nm  
      Lat.:    54°11'N        "        Submerged:       7 nm  
      Long.:  25°35'W    
    12.58 AL 4846 Surfaced.  
    16.00 AL 4874    
      NE 4, Sea 3, long Swell, Vis. 6 nm, 1007 mb    
    20.00 AL 7135    
           
    13.01.43 North Atlantic    
    00.00 AL 7159    
    04.00 AL 7188    
    08.00 AL 7419    
    09.00 AL 7443 Reached position in patrol line.  Back and forth in position at economical speed.  
      NW 4-5, Sea 2-3, overcast, Vis. 6 nm  
    10.06 AL 7443 Test dive.  
    12.00 AL 7445 Day's run  Surfaced:       119 nm  
      Lat.:    52°27'N        "        Submerged:       7 nm  
      Long.:  26°04'W    
    12.16   Surfaced.  
    16.00 AL 7418    
    20.00 AL 7446    
           
    14.01.43 North Atlantic    
    00.00 AL 7443    
    02.15 AL 7419 Crash dive for training.  Proceeded submerged to fill the battery with distilled water.  
    06.14 AL 7446 Surfaced.  
    08.00 AL 7443    
    12.00 AL 7443 Day's run  Surfaced:       114 nm  
      Lat.:    52°27'N        "        Submerged:       7 nm  
      Long.:  26°04'W    
      WSW 3, Sea 2-3, high Swell, Vis. 14 nm    
           
Sun and Moon Data 11.01.43
Sun and Moon Data 12.01.43
Sun and Moon Data 13.01.43
Sun and Moon Data 14.01.43
 
- 9 -
 
           
           
           
    continued      
    14.01.43      
    16.00 AL 7443    
    18.42   Incoming Radio Message 1801/14/766:  
        1)  Group "Habicht" 16 January at 00.00 be in patrol line from square AL 4841 to 8489.  
        Headed for AL 4873, in so doing cruised before the sea to avoid overcoming seas.  
    20.00 AL 7451    
    23.15 AL 7452 Incoming Radio Message 2226/14/769:  Take up the patrol line ordered today for Group "Falke" and "Habicht" on 16 January not at 00.00 hours but instead at 08.00 hours.  
           
    15.01.43 North Atlantic    
    00.00 AL 7434    
      SSW 7, Sea 5-6, overcast, rain, hail, Vis. 1000 meters    
    01.45 Overcoming seas beat the conning tower hatch such that the cable of the Fu.M.B. is broken, UZO is torn out of its mounting and went overboard.  
    02.59 AL 7197 Crash dive.  Continued submerged, to avoid further overcoming seas.  
    04.00 AL 7194    
    08.00 AL 9191    
    09.08 AL 7167                                  Surfaced.  The sea has grown calmer.  Continued on the surface, however still before the sea due to the high swell.  
      WSW 2, Sea 1, high SSW-Swell, overcast, Vis. good    
    12.00 AL 7166 Day's run  Surfaced:       115 nm  
      Lat.:    53°08'N        "        Submerged:     17 nm  
      Long.:  25°22'W    
    16.00 AL 7242    
    20.00 AL 7227    
           
    16.01.43 North Atlantic    
    00.00 AL 7231    
    04.00 AL 4884    
    06.00 AL 4873 Reached position in patrol line, back and forth in position.  
    08.09 AL 4872 Test dive.  
    09.06 AL 4873 Surfaced.  
    10.46   Incoming Radio Message 1022/16/794:  Group "Habicht" 11.00 hours 330°, 6 knots.   
        Set off on course 330°T, at 6 knots.  Proceeded in reconnaissance line.  
    11.19 AL 4873 Crash dive for amphibious aircraft bearing 90°, range = 14000 meters, course 200°, altitude 300 meters, depth A +0 meters, remained unnoticed.  
    11.46 AL 4849 Surfaced.  
    11.49 AL 4849 Crash dive for land-based aircraft bearing 20°T, range = 10000 meters, course and type not recognized.  Went to depth A -20 meters, remained unnoticed.  
    12.00 AL 4849 Day's run  Surfaced:       127 nm  
      Lat.:    54°05'N        "        Submerged:     4.5 nm  
      Long.:  24°49'W    
    12.16 AL 4849 Surfaced.  
    12.26 AL 4849 Incoming Radio Message 1147/16/795:  17 January at 04.40 halt and occupy patrol line from AL 4171 to 7229.  
           
Sun and Moon Data 14.01.43
Sun and Moon Data 15.01.43
Sun and Moon Data 16.01.43
 
- 10 -
 
           
           
           
    continued      
    16.01.43      
    12.29 AL 4848 Crash dive for aircraft bearing 350°T, range = 12000 meters, altitude 500 meters, course 220°, depth A -40 meters, remained unnoticed.  Aircraft was painted white on the underside, so that initially is was made out as a seagull.  
      W 5, Sea 3-4, medium Swell, Vis. good 10 nm  
    12.44   Surfaced.  
    12.45 Bearing 305°T the same marked aircraft in sight, course 50°, range = 15000 meters, remained on the surface, because course is away, to see if the aircraft represents the close escort of a convoy and to take advantage of the good visibility on the surface.  
    12.54   Out of sight bearing 0°T.  
    14.59 AL 4841                                  Crash dive for 2 aircraft, of these the 1st bearing 280°, range = 15000 meters, altitude 400 meters, 2nd bearing 10°T, range 13000 meters, altitude 500 meters, course and type not recognized, depth A -40 meters, remained unnoticed.  
    15.33   Surfaced.  
    16.00 AL 4841    
    20.00 AL 4732 Difference between dead reckoning and actual position after a navigation fix:  176°T, 30.4 nm.  
           
    17.01.43 North Atlantic    
    00.00 AL 4498    
    01.02 AL 4484 Difference between dead reckoning and actual position after a navigation fix:  250°T, 14 nm.  Came to GF, to improve position.  
    04.00 AL 4443 Reached correct position in patrol line, continued at 6 knots.  
    08.00 AL 4413 Back and forth in position in patrol line.  
    08.32   Test dive.  
    09.15   Surfaced.  
    10.50                                                  Incoming Radio Message 1030/17/704:  If up to this evening there is no contact "Falke" and "Habicht" from 19.00 hours initiate transit as reconnaissance line.  Course 270°, speed 6 knots.  From 18 January 10.30 come about, course 90°, 6 knots.  
    12.00 AL 4412 Day's run  Surfaced:       152 nm  
      Lat.:    55°27'N        "        Submerged:      7 nm  
      Long.:  26°08'W    
      SSE 3, Sea 2, 5/10, Vis. 12 nm, light Swell    
    12.08   Incoming Radio Message 1155/17/706:  "Falke" and "Habicht" at 13.00 hours course east, speed 6 knots.  Order concerning westerly transit remains in effect.  
    13.00 AL 4413 Set off on course 90°, 6 knots.  
    16.00 AL 4423    
    19.00 AL 4433 In accordance with orders came to opposite course.  
    20.00 AL 4432    
           
    18.01.43 North Atlantic    
    00.00 AL 4421    
    04.00 AK 6633    
    08.00 AK 6622    
    08.39 AK 6622 Test dive.  
    09.37 AK 6621 Surfaced.  
    10.25   Incoming Radio Message 0944/18/718:  1)  Group "Falke" and "Habicht" from 10.30 hours contrary to first order only 4 knots.  
    10.30 AK 6613 Came to course 90°, 4 knots.  
    12.00 AL 6621 Day's run  Surfaced:       143.5 nm  
      Lat.:    55°27'N        "        Submerged:       3.0 nm  
      Long.:  27°24'W    
           
Sun and Moon Data 16.01.43
Sun and Moon Data 17.01.43
Sun and Moon Data 18.01.43
 
- 11 -
 
           
           
           
    continued      
    18.01.43      
    13.23 SE 6, Sea 5, high Swell, Vis. 8 nm, 6/10 Incoming Radio Message 1305/18/721:  "Group Falke" and "Habicht" 14.00 hours stay in reached position line as patrol line and monitor.  
    14.00 AK 6622 Back and forth in position in patrol line.  
    16.00 AK 6222    
    18.50   Incoming Radio Message 1838/18/723:  Group "Falke" and "Habicht" 19.30 hours course 270°, 6 knots.  
    19.30 AK 6632 Came to course 270°, speed 6 knots.  
    20.00 AK 6622    
    20.45   Incoming Radio Message 2029/18/725:  1)  "Falke" and "Habicht" on 19 January 11.30 hours stay in reached position line from naval square 7926 6142 and 6181 to 9317.  
    22.22 AK 6299 Difference between dead reckoning and actual position after a navigation fix:  294°T, 21.8 nm.  
        Improved position in reconnaissance line.  
           
    19.01.43 North Atlantic    
    00.00 AK 6298    
    04.00 AK 6523    
    08.00 AK 6511    
    08.44 AK 6433 Test dive.  
    09.25 AK 6433 Surfaced.  
    11.30 AK 6423 Back and forth in position in patrol line.  
      SE 3, Sea 1-2, 9/10, medium-high Swell, Vis. 8 nm Day's run  Surfaced:       129.6 nm  
             "        Submerged:       3.5 nm  
      Lat.:    55°27'N    
      Long.:  29°59'W    
    16.00 AK 6423    
    17.47

 

 

 

 

[January intended]

Incoming Radio Message 1601/19/735:  If there is no contact up to 20.00 hours patrol line Group "Falke" and "Habicht" dissolved.  Boats carry on in the following disposition:  1)  Group "Haudegen" in named order "Huth", "U-286", "Clausen", "Drewitz", "Gräf", "U-201", "Döhler", "Mengersen", "Borchers", "Hesemann", "Kremser", "Heine", "Franzius", "Soden", "Kessler", "Köppe", "U-752" on 22 February at 13.00 hours be in reconnaissance line from AJ 3141 to AL 4691 [typo AK 4691], course 210°, speed of advance 5 knots.  
    20.00 AK 6423 On course 283°, 6 knots, headed for square AJ 3972.  
           
    20.01.43 North Atlantic    
    00.00 AK 6178    
    03.11 AK 5394 Incoming Radio Message 0041/20/740:  "Group Haudegen" at 20 Jan 20.00 hours switch "Hubertus" Circuit.  
    04.00 AK 5394    
    08.00 AK 5381    
    08.37 AK 5373 Test dive.  
    09.37 AK 5372 Surfaced.  
    12.00 AK 5269 Day's run  Surfaced:       131.9 nm  
      Lat.:    55°48'N        "        Submerged:       2.1 nm  
      Long.:  32°36'W    
      NNW 2, Sea 1-2, overcast, medium-high Swell, Vis. 6-8 nm    
    16.00 AK 5258    
    20.00 AK 5244    
           
           
           
Sun and Moon Data 18.01.43
Sun and Moon Data 19.01.43
Sun and Moon Data 20.01.43
 
- 12 -
 
           
           
           
           
    21.01.43 North Atlantic    
    00.00 AK 5153    
    00.58 AK 5151 Difference between dead reckoning and actual position after a navigation fix:  243°T, 9 nm.  
    04.00 AK 5141    
    08.00 AK 4324    
    08.36 AK 4316    
    09.43 AK 4316    
    12.00 AK 4311 Day's run  Surfaced:       142 nm  
      Lat.:    56°23'N        "        Submerged:       4 nm  
      Long.:  36°57'W    
      E 4, Sea 3, medium-high Swell, rain, hail, Vis. 1 nm    
    12.31 AK 4311 Suspected smoke cloud in a rain squall bearing 310°T.  Pursued at GF.  
    12.58 AK 1978 Crash dive to listen.  No sound bearings.  
    13.12 AK 1978 Surfaced.  Continued to head for square AJ 3972.  
    16.00 AJ 3995    
    20.00 AJ 3986    
           
    22.01.43 North Atlantic    
    00.00 AJ 3984    
      SSW 8, Sea 6, overcast, rain, hail, Vis. 100-300 meters    
    00.21   Test dive, afterwards proceeded submerged at depth A -50 meters due to bad visibility.  
    03.41 AJ 3973 Surfaced.  
    04.00 AJ 3972    
    08.00 AJ 3975 Difference between dead reckoning and actual position after a navigation fix:  240°T, 14.8 nm.  
    12.00 AJ 3972 Day's run  Surfaced:        94 nm  
      Lat.:    56°38'N        "        Submerged:    7.8 nm  
      Long.:  38°49'W    
    12.55 AJ 3972 Incoming Radio Message 1234/22/895:  Boats remain in position from 13.00 hours as patrol line.  
    13.05 AJ 3972 Back and forth in position in patrol line.  
    16.39 AJ 3972 Incoming Radio Message 1605/22/897:  "Haudegen" immediately course SE, speed 10 knots.  Operation on "Hellriegel"-convoy.  
    14.33 AJ 3972 Incoming Radio Message 1315/22/897:  KR - Convoy naval square AK 7422.    - Hellriegel -  
    17.12 AJ 3975 Incoming Radio Message 1615/22/801:  Sighted formation apparently a U-boat hunting group.  Position naval square AK 7419.  - Hellriegel -  
    18.20 AJ 3987 Incoming Radio Message 1741/22/803:  "Group Haudegen" in old named order without "Gräf", "Drewitz" and "Rosenberg" on 23 January at 12.00 hours in reconnaissance line from AK 4313 to 8379 proceed on course 235°, 6 knots.  
    20.00 AK 4216    
    23.23 AK 4216 Submerged due to bad visibility, depth A -50 meters.  
      SSW 10-11, Sea 5-6, Vis. 1000 meters    
           
    23.01.43 North Atlantic    
    00.00 AK 4265    
    02.13 AK 4269 Surfaced, visibility has improved a bit.  
        Continued on the surface.  
    04.00 AK 4375    
    08.00 AK 5438    
           
           
Sun and Moon Data 21.01.43
Sun and Moon Data 22.01.43
Sun and Moon Data 23.01.43
 
- 13 -
 
           
           
           
    continued      
    23.01.43      
    12.00 AK 5486 Day's run  Surfaced:        288 nm  
      Lat.:    54°43'N        "        Submerged:        7 nm  
      Long.:  34°29'W    
    12.37 AK 5485 Incoming Radio Message 1153/23/819:  "Haudegen" remain in position in reached position line from 12.00 hours as patrol line.  
    12.45 AK 5485 Proceeded back to old position in patrol line.  
    13.45 AK 5486 Reached position in patrol line.  Back and forth in position.  
    16.00 AK 5486    
    20.00 AK 5486    
    21.20   Incoming Radio Message 2119/23/828:  Group "Haudegen" immediately course 300°, speed 9 knots.  
    21.40 AK 4586 Set off on course 300°, speed 9 knots.  
    22.54   Incoming Radio Message 2154/23/833:  It is intended to deploy Group "Haudegen" to detect Jaguar-convoy. Convoy located in AJ 7990 at 10.00 hours.  
           
    24.01.43 North Atlantic    
    00.00 AK 5445    
    04.00 AK 4637    
    08.00 AK 4378    
    09.15 AK 2496 Test dive.  
    09.43 AK 4296 Surfaced.  
    11.45   Incoming Radio Message 1038/24/844: "Group Haudegen" from "Huth" to "U-752" on 25 January at 11.30 hours be in patrol line from square AJ 2341 to AK 4178.  
    12.00 AK 4259 Day's run  Surfaced:        170 nm  
      Lat.:    55°42'N        "        Submerged:     1.3 nm  
      Long.:  37°30'W Headed for AJ 3475 at HF.  In so doing cruised against the sea to make a better lookout possible.  
      WNW 9, Sea 8, overcast, hail showers, Vis. 500-600 meters  
    16.00 AK 4246    
    20.00 AK 4241    
           
    25.01.42 North Atlantic    
    00.00 AK 4125    
    04.00 AJ 3889    
    08.80 AJ 3848    
    09.13 AJ 3847 Test dive.  
    09.52 AJ 3847 Surfaced  
    12.00 AJ 3721 Day's run  Surfaced:        168 nm  
      Lat.:    47°13'N        "        Submerged:        2 nm  
      Long.:  41°48'W    
      W 3, Sea 2, 8/10, medium-high Swell, NW-Swell, Vis. 6 nm    
    13.54 AJ 3475 Reached position in patrol line.  Back and forth in position.  
        Incoming Radio Message 1324/25/872:  Group "Haudegen" from "U-268" to "U-752" on 26 January at 08.00 hours be in patrol line from AD 9533 to AK 4183.  
        Headed for AJ 3463.  
    16.00 AJ 3474    
           
           
           
Sun and Moon Data 22.01.43
Sun and Moon Data 23.01.43
Sun and Moon Data 24.01.43
 
- 14 -
 
           
           
           
    continued      
    25.01.43      
    16.50   Incoming Radio Message 1630/25/877:  Group "Haudegen" if contact keeper reports are received from Poehl-convoy, operate on convoy immediately without operational orders.  
    20.00 AJ 3481    
    23.00 AJ 3483 Difference between dead reckoning and actual position after a navigation fix:  99°T, 6 nm.  
           
    26.01.43 North Atlantic    
    00.00 AJ 3491    
    04.00 AJ 3463    
    04.24 AJ 3463 Reached position, back and forth in position.  
        Difference between dead reckoning and actual position after a navigation fix:  58°T, 44 nm.  
    08.00 AJ 3288    
    10.24 AJ 3513 Test dive.  
    11.04 AJ 3516 Indistinct sound bearing 21°T. Steamer engine sounds possible.  
    11.21 AJ 3516 Surfaced, pursued in the direction of the sound bearing.  
      WNW 2, Sea 1-2, overcast, Vis. changing 3-5 nm    
    11.45 AJ 3519 A U-boat bearing 10°T.  Range = 10000 meters.  U-boat quickly passes out of sight again.  
    11.48 AJ 3518 Dived to listen because nothing is seen.  
    12.00 AJ 3518 Day's run  Surfaced:        183.5 nm  
      Lat.:    57°54'N        "        Submerged:       4.5 nm  
      Long.:  40°52'W    
    12.04 AJ 3518 Surfaced, pursued further in 220° at GF.  
    12.35 AJ 3518 Dived again to listen.  No sound bearing.  
    12.47 AJ 3542 Surfaced.  Headed back to old position in patrol line.  
    14.06 AJ 3463 Reached old position in patrol line again.  
    17.36 AJ 3439 Made out smoke trace and destroyer mast bearing 292°T, range = 16000 meters.  Turned away ran off at high speed.  
    17.42 AJ 3439 U-boat in sight type VII bearing 83°T, range = 10000 meters.  
    17.51 AJ 3541                                    Destroyer comes out again.  Crash dive to periscope depth.  Turned towards for submerged attack.  Destroyer distinguished as of the "CHURCHILL" class comes closer.  Sharp target angle.  At 5000 meters the destroyer turns to about target angle 90°.  Torpedo shot in this situation is hopeless.  Destroyer quickly passes out of sight.  
    18.42 AJ 3541                                    Surfaced and pursued at highest speed in the direction of the last sound bearing.  Pursuit based on the following consideration:  It should be possible to properly determine the the speed of advance  to see thereby whether the destroyer is the flank escort of a convoy or the before evening twilight forward sweeper.  Reported sighting of the destroyer by Short Signal. Signal was not acknowledged although it was sent three times.  
    20.05 AJ 3551                                   Destroyer in sight again over the horizon bearing 80°T.  Destroyer has a speed of advance of 16 knots, general course 100°, taken as forward sweeper.  
    20.10 AJ 3551 Came to course 280°, because the convoy is expected in this direction now.  
      N 2-3, Sea 1-2, light Swell, 9/10, Vis. 10-12 nm  
           
           
Sun and Moon Data 25.01.43
Sun and Moon Data 26.01.43
 
- 15 -
 
           
           
           
    continued      
    26.01.43      
    20.50 AJ 3542                                    Nothing seen up to now.  In the mean time is has grown dark therefore submerged for all around listening sweep.  No sound bearings.  
    21.02 AJ 3542 Surfaced and took up old position in patrol line.  
    23.39 AJ 3541                                    Dived for all around listening sweep.  In 150°T a faint sound bearing that is made out perfectly as U-boat sounds, probably our neighbor to the south.  
    23.58 AJ 3541                                    Surfaced.  Back and forth in position in patrol line.  Because several boats in this area reported sighting destroyers, dispensed with sending a radio message so as not to break radio silence.  
           
    27.01.43 North Atlantic    
    00.00 AJ 3541    
    01.52   Incoming Radio Message 0133/17/899:  Operate at highest speed on sound bearings and reports of destroyers.  
    01.58 AJ 3463 Dived for all around listening sweep. Sound bearing in 180°T.  
    02.24 AJ 3463 Surfaced and pursued in the direction of the sound bearing.  
      WNW 1, Sea 0-1, overcast, Vis. 1-2 nm    
    03.16 AJ 3547 Nothing seen, therefore dived again to listen.  Sound band from 160-200°T.  
    03.28 AJ 3547 Surfaced and operated on the sound band.  
    04.12 AJ 3572 Nothing seen, dived again to listen submerged.  Faint sound bearing in 180°T.  
    04.40 AJ 3572 Surfaced.  Pursued in the direction of the sound bearing.  
    05.30 AJ 3578 Nothing seen.  Dived again.  Sound bearing in 350°T.  It is inexplicable, because by this we passed by, however the sound bearing is perfect.  Apparently steamer engine sounds.  
    05.50 AJ 3577 Surfaced and pursued in the direction of the sound bearing.  
    06.27 AJ 3574 Nothing seen, submerged again to listen.  Sound bearing 260°T.  
    06.41 AJ 3574 Surfaced.  Pursued in the direction of the sound bearing.  
    07.04 AJ 3574                                    Nothing seen.  Dived to listen.  Multiple sound bearings were used to establish an approximate picture of the shift.   Remained longer submerged and plotted the sound bearings.  By this it was determined that the sound sources must steer inexplicable criss-cross courses.  
    08.33 AJ 3574                                    Surfaced and pursued in the direction of the last sound bearing, the finally determine the source of the noise.  Nothing seen.  
    09.43 AJ 3814 Dived to listen.  Sound bearing in 0°T.  
    10.03 AJ 3814 Surfaced and pursued in the direction of the last sound bearing.  
    10.45 AJ 3574 Again nothing seen, although in the mean time it has grown light and the visibility is good.  
    10.58 AJ 3571 Dived for an all around listening sweep.  No further sound bearings.  
    11.10   Surfaced and in accordance with Radio Message 0133/27/899 operated on destroyer sighting at highest speed.  
    12.00 AJ 3571 Day's run  Surfaced:        181.4 nm  
      Lat.:    57°33'N        "        Submerged:       13.0 nm  
      Long.:  40°50'W    
           
Sun and Moon Data 26.01.43
Sun and Moon Data 27.01.43
 
- 16 -
 
           
           
           
    continued      
    27.01.43      
    16.00 AJ 3648    
      WNW 3, Sea 2-3, medium Swell, overcast, rain showers, Vis. 4-5    
    16.00 AJ 3648    
    20.00 AK 1747    
    21.58 AK 1757 Incoming Radio Message 2031/27/820:  If there is no contact break off operations.  2)  Group "Haudegen" from 30 January 12.00 hours be in new patrol line from AJ 2442 to AK 7132.  Named order:  "Wächter", "Manke",    "Thäter", "Gretschel", "Hessemann", "Heydemann", "U-69", "Huth", "Rosenberg", "Clausen", "Drewitz", "Döhler",  "Mengersen", "Borchers", "Kremser", "Heyne", "Franzius", "Soden", "Kessler", "Köppe" and "U-752".  3)  Passing of a NE-bound convoy on 30 January is expected.  
    23.50 AK 1766 Headed for square AJ 2753 at 6 knots, course 203°.  
           
    28.01.43 North Atlantic    
    00.00 AK 1756    
    04.00 AK 1748    
    08.00 AJ 3691

Boat must go to LF across the seas due to the Sea State.

 
      W 6-7, Sea 6, high Swell, overcast, rain- hail showers, Vis. 1/4-1 nm    
    10.48 AJ 3656 Test dive.  
    11.49 AJ 3658 Surfaced.  
    12.00 AJ 3682 Day's run  Surfaced:       215 nm  
      Lat.:    57°38'N        "        Submerged:     3.0 nm  
      Long.:  36°10'W    
    16.00 AJ 3648    
    20.00 AJ 3596    
           
    29.01.43 North Atlantic    
    00.00 AJ 3594    
    04.00 AJ 3584    
    08.00 AJ 3574    
    10.45 AJ 3498 Test dive.  
    11.56 AJ 3498 Surfaced.  
    12.00 AJ 3498 Day's run  Surfaced:       94.7 nm  
      Lat.:    57°27'N        "        Submerged:     3.1 nm  
      Long.:  41°10'W    
      WNW 5-6, Sea 5, high NW-Swell, overcast, Vis. 5-6 nm    
    16.00 AJ 3488    
    20.00 AJ 3477    
           
    30.01.43 North Atlantic    
    00.00 AJ 2689    
    04.00 AJ 2833    
    08.00 AJ 2822    
    12.00 AJ 2812 Day's run  Surfaced:       146.5 nm  
      NW 8, Sea 7, 7/10, hail- snow showers, Vis. 0.2-1 nm        "        Submerged:      . / .  nm  
    13.50 AJ 2732 Reached position in patrol line.  
    16.00 AJ 2733    
           
Sun and Moon Data 27.01.43
Sun and Moon Data 28.01.43
Sun and Moon Data 29.01.43
Sun and Moon Data 30.01.43
 
- 17 -
 
           
           
           
    continued      
    30.01.43      
    20.00 AJ 2449    
           
    31.01.43 North Atlantic    
    00.00 AJ 2734    
    04.00 AJ 2814    
    08.00 AJ 2736    
    09.34 AJ 2736 Test dive.  
    10.50 AJ 2736 Surfaced.  
    12.00 AJ 2811 Day's run  Surfaced:       141 nm  
      Lat.:    57°10'N        "        Submerged:     3.8 nm  
      Long.:  46°20.2'W    
      NW 8-9, Sea 8, overcast, hail- rain showers, Vis. 100 meters - 1 nm    
    16.00 AJ 2733    
    20.00 AJ 2756    
           
    01.02.43 North Atlantic    
    00.00 AJ 2733    
    04.00 AJ 2733    
    08.00 AJ 2733    
    09.41 AJ 2733 Test dive.  
    10.48 AJ 2733 Surfaced.  
    11.43 AJ 2733 Incoming Radio Message 1056/1/886:  Group "Haudegen" proceed as reconnaissance line with speed of advance 3 knots and SW course.  On 2 February be in position line from 4956 to 9633, on 3 February in position line from 4381 to 9911 each at 12.00 hours.  
    12.00 AJ 2733 Day's run  Surfaced:       170.3 nm  
      Lat.:    57°09'N        "        Submerged:     3.5 nm  
      Long.:  46°19'W Set off in reconnaissance line with course 208 and speed 3 knots.  
      NW 8, Sea 6-7, 7/10, Vis. 8 nm  
    16.00 AJ 2738    
    17.45 AJ 5213 Difference between dead reckoning and actual position after a navigation fix:  198°T, 38.0 nm.  
        Improved position in reconnaissance line.  
    20.00 AJ 2789    
    23.50 AJ 2783 Dived and continued submerged to carry out the urgently needed repacking of a cylinder head.  
      Additionally while proceeding submerged with the prevailing visibility and high seas monitoring of the reconnaissance line is better by listening.  
           
    02.02.43 North Atlantic    
    00.00 AJ 2783    
    04.00 AJ 2786    
    04.04   Surfaced.  Diesel work is completed.  
    08.00 AJ 5212    
    12.00 AJ 5214 Day's run  Surfaced:       98.1 nm  
      Lat.:    56°08'N        "        Submerged:    10.7 nm  
      Long.:  47°20'W    
      WSW 1-2, Sea 1, light Swell, 7/10, Vis. 10-12 nm    
    12.02   Drifting mine to port shot with MG.  
    14.03 AJ 5217 Incoming Short Signal:  Convoy in square AJ 1943, course 10°.  
        Operated on "Wächter"-convoy at highest speed.  
    15.22 AJ 5236 Incoming Radio Message 1458/2:  KR - Convoy AJ 1921, course 0°, 10 knots, so far only 3 steamers and 2 corvettes distinguished.    - Wächter -  
           
Sun and Moon Data 30.01.43
Sun and Moon Data 31.01.43
Sun and Moon Data 01.02.43
Sun and Moon Data 02.02.43
 
- 18 -
 
           
           
           
    continued      
    02.02.43      
    15.26   Incoming Radio Message 1512/2/831:  Group "Haudegen" 1)  Northwest wing of the group up to and including "Drewitz" with out "Gräf" operate on Wächter-convoy in square 1943.  
    15.37 AJ 5232 1 U-boat bearing 295°T, range = 10000 meters.  U-boat slowly comes closer and was recognized as type VII c.  After Recognition Signal exchanged boat was identified as "U-707".  The navigation comparison shows a match.  Afterwards operated on convoy at highest speed.  
    16.28 AJ 2777 Incoming Radio Message 1506/2/834:  Convoy AJ 1687, course 0°, SW 3-4, Vis. good, snow showers. - Wächter -  
    17.22 AJ 2769 Incoming Radio Message Short Signal:  Convoy located square AJ 1654, up to 5 steamers, square AJ 1682.  
                                                                   - Wächter -  
    18.38 AJ 1966 Incoming Short Signal:  Enemy position AJ 1654.  
    19.38 AJ 1938 Incoming Radio Message 1810/2/841:  Convoy naval square 1667, course 15°, speed 10 knots, Greenland possible, 5 steamers, 2 escorts distinguished.  Light snow showers.  
                                                                   - Manke -  
    21.57   Incoming Radio Message 2122/2/846:  2)  Boats operating on Wächter convoy form "Group Nordsturm".  
    22.31 AJ 1659 Incoming Radio Message 2142/2/848:  Convoy 3 steamers 4 torpedo boats, AJ 1189 [typo 1389?], zigzags between 0° and 50°, 10 knots.  During submerged attack too great shooting range due to zigzag away.        - Wächter -  
    22.38 AJ 1656 Incoming Radio Message 2310/2/852:  Enemy naval square AJ 1392, N-course, 10 knots, snow showers.  
                                                                   - Manke -  
           
    03.02.43 South of Greenland    
    00.00 AJ 1653    
    00.36 AJ 1634 Incoming Radio Message 2321/2/854:  
        Contact lost 22.00 hours.  Convoy position 1386, course 20°, strong visibility reduction due to snow.  
        Because the Radio Message was not heard by the homeland, repeated at 01.10 hours.  
    01.10 AJ 1632 Oil line on the starboard diesel broken, heavy oil loss in both diesels as a result.  Cause not determined.  Both diesels must be stopped.  
    02.10 AJ 1632 Incoming Radio Message 0135/3/:  Naval square AJ 1325 sound bearing in 300°.                          - Wächter -  
    02.46 AJ 1398 Incoming Short Signal:  Enemy located AJ 3887 [typo ÄA 3887] , course 0°.  
                                                                   - Wächter -  
    03.28 AJ 1398 Both diesels in service again. operated on convoy at highest speed.  
    04.30 AJ 1392 Incoming Radio Message 0355/3/855:  Enemy located naval square ÄA 3882, speed 12 knots, course 20°.  - Wächter -  
    06.30 AJ 1332 Incoming Radio Message 06.04/3/859:  Naval square ÄA 3852 04.52 hours 5 single shots 3 hits, 1 certainly sunk, 6000-7000 GRT.  Hunted by escort.  Star shells.  Position 3864.  Contact lost.  Broke off pursuit.  62 cbm.   
                                                                   - Wächter -  
    09.20 ÄA 3838 Incoming Radio Message 0835/3/:  Breaking off, naval square ÄA 3850, still 54 cbm.             - Manke -  
           
           
           
Sun and Moon Data 02.02.43
Sun and Moon Data 03.02.43
 
- 19 -
 
           
           
           
    continued      
    03.02.43      
        Continued to operate on convoy because the assumption was that the torpedoed steamers ran at low speed and these could still be reached.  
    10.15 ÄA 3831 Dived to listen.  No sound bearings.  
    10.51 ÄA 3831 Surfaced.  Several  icebergs sighted.  
    12.00 ÄA 3397 Day's run  Surfaced:       273.4 nm  
      Lat.:    60°00'N        "        Submerged:    1.0 nm  
      Long.:  48°14'W Land in sight bearing 0 to 30°T, probably Cape Desolation.  In the absence of nautical charts and coastal recognition points ship's position cannot be properly established.  
      E 2-3, Sea 2, 8/10, Vis. 10-12 nm  
    12.18 ÄA 3394 Crash dive for land-based aircraft in 350°T, range = 18000 meters, altitude 500 meters, S-course.  Periscope depth.  Remained unnoticed.  
    12.30   Surfaced.  
    12.31   Crash dive for land-based aircraft bearing 50°T, range = 18000 meters, altitude 500 meters, S-course.  Periscope depth.  Remained unnoticed.  
    12.45 ÄA 3386 Surfaced.  
    12.51   Incoming Radio Message 1118/3/858:  Group "Nordsturm" pursue up to the coast.  Penetrate if opportunity is favorable.  
    12.55   Crash dive for land-based aircraft bearing 270°T, range = 18000 meters, altitude 500 meters, depth A -50 meters, remained unnoticed.  
    13.19   Surfaced.  
    13.43 ÄA 3385 Crash dive for land-based aircraft bearing 0°T, range = 20000 meters, altitude 600 meters, S-course, depth A +0 meters, remained unnoticed.  
        2 detonations far off.  
    14.26   Surfaced.  
    14.28   Crash dive for land-based aircraft bearing 230°T, range = 15000 meters, altitude 500 meters, SE-course, depth A +0 meters.  
    14.34   2 detonations, probably aircraft bombs in medium range.  
    15.32 ÄA 3282 Surfaced.  
    15.37   Crash dive for aircraft bearing 17°T, range = 10000 meters, altitude 300 meters, course NW, remained unnoticed.  Depth A +0 meters.  
        Proceeded submerged until darkness because there is only 80 atü [absolute pressure - pressure in atmospheres (atm) minus one - 3 atm = 2 atü] of compressed air and recharging is not possible with the heavy air surveillance.  
    20.00 ÄA 3357    
    21.49 ÄA 3354 Surfaced.  Intend to stay in this area under the coast back and forth in position because according to the English Nautical Handbook there must be a harbor in this area.  
    22.44 ÄA 3351 The glow of a light beacon bearing 30°T, flashing green green 2.  On determining the exact identification the beacon was extinguished, it was identified as an Air Force beacon because in accordance with the charts on board there is no lighthouse in this area.  
    23.22 ÄA 3343 Dived to listen.  No sound bearings.  
    23.38 ÄA 3343 Surfaced.  Broke off the operation and headed for square AJ 56.  
      The penetration of any port without a vessel to follow was not possible for the following reasons.  
           
           
Sun and Moon Data 03.02.43
 
- 20 -
 
           
           
           
    continued      
    03.02.43      
      1)  The exact ship's position could not be established properly for reasons already mentioned.  
      2)  Cursing on the surface by day excluded because of the heavy air cover.  
      3)  By night all navigational aids are missing to prevent the boat from running aground. Additionally, navigation was complicated by the frequent icebergs.  
           
    04.04.43 South of Greenland    
    00.00 ÄA 3343    
    04.00 ÄA 3382    
    08.00 ÄA 3832    
    09.43 ÄA 3826 Test dive.  
    10.36 ÄA 3837 Surfaced.  
    11.41 ÄA 3861 2 masts bearing 110°T in the morning twilight.  Range = 10000 meters.  Turned away and moved off to await lightness.  
      E 3, medium-high Swell, Sea 3, 8/10, Vis. 3-5 nm  
    11.50 Both masts belong to a small vessel, apparently a patrol vessel.  Submerged, held onto it to identify exactly.  
    12.00 AJ 3861 Day's run  Surfaced:       79.0 nm  
      Lat.:    59°38'N        "        Submerged:    20.4 nm  
      Long.:  48°35'W                        It is a motor ship of about 200 GRT that flies a remarkably large Danish flag on the after mast.  
    12.45 AA 3861                                   Approached to about 2000 meters, when the enemy zigzagged away.  In the prevailing swell proceeding submerged is difficult so that the periscope is nearly always over spilled, as a result details could not be distinguished.  Only on the forecastle there was an extremely large companion ladder.  Painting on the vessel was the normal camouflage, however without the Danish flag on the side of the hull.  
    13.10                                                  Surfaced.  The motor ship is 10000 meters away.  Now closed to stop it in accordance with the Prize Regulations - the boat is outside of the blockade area - and possibly to sink with artillery.  
    13.19 At range = 8000 meters it turns towards us, the ship previously lay at target angle 170°.  When turning a cannon is recognized on the forecastle.  The large flag is taken away, in its place a small flag is set, that at the range cannot be distinguished.  Turned away, ran off at highest speed.  The motor ship now opens fire, apparently with automatic weapons, because the muzzle flashes are very small and no smoke is seen.  The forward cannon was probably not used because on this course the enemy drives exactly into the sea.  Even if he had shot with the forward cannon at this range, with the poor hit possibility, the boat was hardly endangered.  Naturally the automatic weapons could not reach so far.  Therefore with small zigzags and highest speed ran off on the surface.  
    13.30   The enemy ceases fire and turns away.  
    13.48   Enemy out of sight bearing 240°T.  
    16.00 AA 3899    
    17.00   Outgoing Radio Message 1607/4/883:  Reported U-boat trap in square ÄA 3861.  
    20.00 AJ 2173    
           
    05.02.43 North Atlantic    
    00.00 AJ 2187    
           
           
Sun and Moon Data 03.02.43
Sun and Moon Data 04.02.43
Sun and Moon Data 05.02.43
 
- 21 -
 
           
           
           
    continued      
    05.02.43      
    04.00 AJ 2428    
    08.00 AJ 2456    
    09.36 AJ 2459 Test dive.  
    10.38 AJ 2483 Surfaced.  
    12.00 AJ 2483 Day's run  Surfaced:       142.8 nm  
      Lat.:    57°30.8'N        "        Submerged:    8.1 nm  
      Long.:  47°01'W    
      WNW 6, Sea 4-5, high Swell, snow, Vis. 4-6 nm    
    16.00 AJ 2733    
    18.22 AJ 2729 Incoming Radio Message 1800/5/806:  "Hesemann" with economical speed occupy the following attack area.  Square AJ 59. Operation on NE-bound convoy intended.  
        Headed for square AJ 59.  
    20.00 AJ 2764    
           
    06.02.43 North Atlantic    
    00.00 AJ 2795    
    04.00 AJ 5223    
    08.00 AJ 5261    
    09.37 AJ 5268 Day's run  Surfaced:       99 nm  
      Lat.:    54°51'N        "        Submerged:    6.5 nm  
      Long.:  46°16'W    
    12.21 AJ 5268 Surfaced.  
    16.00 AJ 5295    
      SSW 6-7, Sea 3-4, high Swell, overcast, rain, Vis. 4-6 nm    
    17.37 AJ 5375 Difference between dead reckoning and actual position after a navigation fix:  91°T, 15.1 nm.  
    20.00 AJ 5379    
           
    07.02.43 North Atlantic    
    00.00 AJ 5616    
    04.00 AJ 5643    
    08.00 AJ 5657 Test dive.  
    09.33 AJ 5684 Surfaced.  
    10.52 AJ 5687 Day's run  Surfaced:       61.6 nm  
      Lat.:    54°43'N        "        Submerged:    6.0 nm  
      Long.:  45°24'W    
      W 5, Sea 4, high Swell, overcast, Vis. 4-6 nm    
    16.00 AJ 5924    
    17.47 AJ 8337 Difference between dead reckoning and actual position after a navigation fix:  165°T, 46 nm.  
    20.00 AJ 8337    
           
    08.02.43 North Atlantic    
    00.00 AJ 8323    
    04.00 AJ 5983    
    06.22 AJ 5955 On changing courses back and forth in square AJ 59.  
    08.00 AJ 5955    
      W 3, Sea 2-3, light Swell, overcast, Vis. 1/2 nm, faint marine phosphorescence    
    08.26   Detection impulse on Fu.M.B. 110 cm with vertical polarization.  Crash dive to depth A -50 meters, afterwards proceeded submerged at depth A -50 meters due to bad visibility.  
           
           
Sun and Moon Data 05.02.43
Sun and Moon Data 06.02.43
Sun and Moon Data 07.02.43
Sun and Moon Data 08.02.43
 
- 22 -
 
           
           
           
    continued      
    08.02.43      
    10.38 AJ 5958 Surfaced.  Visibility has gotten better.  
        Continued on the surface.  
    12.00 AJ 5958 Day's run  Surfaced:       96 nm  
      Lat.:    54°00.6'N        "        Submerged:    5.2 nm  
      Long.:  45°15'W    
    12.40   Incoming Radio Message 1003/8/827:  1)  Group "Nordsturm" from 12.00 hours course 225°, economical speed.  
        Set off on course 225° at economical speed.  
    16.00 AJ 5973    
    20.00 AJ 5977    
           
    09.02.43 North Atlantic    
    00.00 AJ 8237    
    04.00 AJ 8255    
      ESE 2-3, light Swell, overcast, rain, Vis. 500-15000 meters    
    04.22   Dived to listen, due to the prevailing bad visibility.  No sound bearings.  
    04.38 AJ 8257 Surfaced.  
    08.00 AJ 8275    
    10.29 AJ 8277    
    10.49   Surfaced.  
    11.07   Crash dive for land-based aircraft in 110°T, range = 5000 meters, altitude 200 meters, W-course, depth A +0 meters, remained unnoticed.  No Fu.M.B. detection.  
    12.00 AJ 8433 Day's run  Surfaced:       119.6 nm  
      Lat.:    52°47.2'N        "        Submerged:      3.8 nm  
      Long.:  47°31.0'W    
    12.19 AJ 8433 In the periscope a land-based aircraft bearing 150°T, range = 3000 meters, altitude 150 meters, S-course, went to depth A -40 meters.  
    13.13   Surfaced.  
    16.00 AJ 8437    
    20.00 AJ 8455    
    20.28   Incoming Radio Message 1902/9/838:  1)  Group "Nordsturm" dissolved.  Boats join Group "Haudegen" and occupy with depth 40 nm the following positions:  "Hesemann" AJ 7972.  
        Headed for AJ 7972 at economical speed.  
           
    10.02.43 North Atlantic    
    00.00 AJ 8473    
    04.00 AJ 7699    
    08.00 AJ 7937    
    09.35 AJ 7953 Test dive.  
    10.45 AJ 7952 Surfaced.  
      AJ 7954 Day's run  Surfaced:        110 nm  
      Lat.:    51°28'N        "        Submerged:      4.4 nm  
      Long.:  49°51'W    
      NNE 4, Sea 2-3, overcast, snow, Vis. 1 nm    
    12.15   Incoming Radio Message 1004/10/846:  Group "Haudegen" at economical transit speed, course 70°.  
        Came to course 70°, one diesel LF.  
           
           
Sun and Moon Data 08.02.43
Sun and Moon Data 09.02.43
Sun and Moon Data 10.02.43
 
- 23 -
 
           
           
           
    continued      
    10.02.43      
    13.16 AJ 7955 Incoming Radio Message 1306/10/850:  To Group "Haudegen":  Course 45°, speed 7 knots.  
    16.00 AJ 7829    
    20.00 AJ 7932    
    23.23   Incoming Radio Message 2231/10/856:  Group "Haudegen":  1)  If there is no contact by 23.00 hours, course 45°, economical speed.  Stop on 11 February at 12.00 hours.  Remain in reached position.  
        Based on my transit speed of 15 knots over ground I will have reached AJ 8272 on 11 February.  
        Headed for square AJ 8272.  
           
    11.02.43 North Atlantic    
    00.00 AJ 8474    
    00.47 NE 7, Sea 5, overcast, rain, Vis. 300-500 meters, faint marine phosphorescence Dived to install a new gasket on a cylinder head on the starboard diesel, and due to bad visibility.  
    04.00 AJ 8475    
    07.26 AJ 8449 Surfaced.  Diesel work finished.  
    08.00 AJ 8449    
    12.00 AJ 8462 Day's run  Surfaced:        84 nm  
      Lat.:    52°26'N        "        Submerged:    15.8 nm  
      Long.:  47°47'W    
    16.00 AJ 8514    
    20.00 AJ 8449 Difference between dead reckoning and actual position after a navigation fix:  233°T, 62 nm.  
    20.51   Incoming Radio Message 1941/11/864:  "Hesemann" occupy as attack area square AJ 7838 with depth 40 nm.  
    22.00   Converted main ballast and reserve fuel oil tank 6 and 7 for use as ballast tanks.  
    22.25 AJ 8454 Dived to flush.  
    22.37 AJ 8451 Surfaced.  
    22.47 AJ 8451 Dived to flush.  
    23.04 AJ 8451 Surfaced.  
           
    12.02.43 North Atlantic    
    00.00 AJ 8454    
    04.00 AJ 8446    
    08.00 AJ 8447    
    09.35 AJ 7693 Test dive.  
    10.51   Surfaced.  
    12.00 AJ 7692 Day's run  Surfaced:        80.2 nm  
      Lat.:    52°10'N        "        Submerged:      6.1 nm  
      Long.:  49°10'W    
      SW 8, Sea 7-8, overcast, hail, Vis. 1 nm    
    15.39 AJ 7691 Dived, because the boat can hardly get ahead due to the high seas.  Submerged, depth A -50 meters.  
    16.00 AJ 7691    
    17.27 AJ 7694 Surfaced to receive during the very low frequency program time.  
    17.43 AJ 7694 Dived to proceed submerged at depth A -50 meters.  
      SW 10-11, Sea 8-9, overcast, Vis. 0.5 nm    
    20.00 AJ 7686    
           
    13.02.43 North Atlantic    
    00.00 AJ 7922    
    00.50 W 6-7, Sea 4, high Swell, 2/10, Vis. 2 nm Surfaced.  The sea is calmer, visibility has gotten better.  
    04.00 AJ 7913    
           
Sun and Moon Data 10.02.43
Sun and Moon Data 11.02.43
Sun and Moon Data 12.02.43
Sun and Moon Data 13.02.43
 
- 24 -
 
           
           
           
    continued      
    13.02.43      
    08.00 AJ 7911    
    09.33 AJ 7836 Test dive.  
    10.35   Surfaced.  
    12.00 AJ 7839 Day's run  Surfaced:        44.7 nm  
      Lat.:    51°38'N        "        Submerged:      21.9 nm  
      Long.:  50°35'W    
    12.29                                                  On the horizon, a strip of a white foam like surf.  However surf is excluded because the ships position is checked by soundings, so as to rule out an approach to the coast.  
    13.26 SW 4, Sea 2-3, overcast, show shower, Vis. 1-8 nm Dived to prevent surprise by aircraft as the visibility is greatly reduced by continual snow squalls.  
    16.00 AJ 7836    
    17.10   Surfaced to receive Radio Messages on very low frequency.  
    17.45   Incoming Radio Message 1651/13/875:  To contract the disposition of Group "Haudegen" "Hesemann" occupy square AJ 7595 depth 30 nm.  Return transit first at 20 cbm.  
        Headed for square AJ 7595.  
    17.48   Again dived to proceed submerged at depth A -50 meters.  
    19.00 AJ 7583 Difference between dead reckoning and actual position after a navigation fix:  313°T, 23.5 nm.  
    20.00 AJ 7582    
    22.05 AJ 7591 Surfaced.  
      SW 8, Sea 6, overcast, Vis. 0.5 -1 nm    
    22.20                                                  Dove again, proceeded submerged at depth A -50 meters, with the bad visibility the listening gear probably covers a greater area.  
           
    14.02.43 North Atlantic    
    00.00 AJ 7591    
    00.52 AJ 7594 Surfaced, visibility has gotten better.   Continued on the surface.  
    01.55 AJ 7595 Reached position, back and forth in position.  
    04.00 AJ 7833    
    08.00 AJ 7591    
    09.25 AJ 7595 Test dive.  
    10.40   Surfaced.  
    12.00 AJ 7833 Day's run  Surfaced:        47.8 nm  
      Lat.:    51°52'N        "        Submerged:      21.6 nm  
      Long.:  50°36'W    
      Wind calm, light Swell, Vis. 10 nm    
    16.00 AJ 7591    
    20.00 AJ 7594    
    23.30 AJ 7593 Dived due to bad visibility (100 meters), depth A -50 meters.  
           
    15.02.43 North Atlantic    
    00.00 AJ 7593    
    01.00   Surfaced, visibility now 0.5 to 2 nm.  Continued on the surface back and forth in position.  
    04.00 AJ 7595    
    05.55 AJ 7597 Dived due to bad visibility, depth A -50 meters.  
      SSE 3-4, Sea 3, overcast, Vis. 500 meters    
    08.00 AJ 7597    
    11.47 AJ 7595 Surfaced, visibility 1-2 nm.  
           
           
           
Sun and Moon Data 13.02.43
Sun and Moon Data 14.02.43
Sun and Moon Data 15.02.43
 
- 25 -
 
           
           
           
    continued      
    15.02.43      
    12.00 AJ 7595 Day's run  Surfaced:        73.6 nm  
      Lat.:    52°00'N        "        Submerged:     12.8 nm  
      Long.:  50°46'W    
    16.00 AJ 7596    
    17.29 AJ 7596 Surfaced, visibility now 3-4 nm, continued on the surface.  
    17.37   Incoming Radio Message 1616/15/892:  "Hesemann" occupy square AJ 88.  Boat now joins Group "Taifun".  
    17.23   Incoming Radio Message 1605/15/891:  Group "Haudegen" is dissolved.  
        Headed for AJ 88 at economical transit speed.  
    19.30 AJ 7674 Dived due to bad visibility.  Proceeded submerged at depth A -50 meters.  
      SSW 5, Sea 4, overcast, fog, rain, Vis. 800-1000 meters  
    20.00 AJ 7596    
    21.02 AJ 7674 Surfaced, visibility has gotten better.  Boat remained on the surface.  
           
    16.02.43 North Atlantic    
    00.00 AJ 7676    
    01.45 AJ 7679 Dived due to bad visibility, proceeded submerged at depth A -50 meters.  
      W 2, Sea 1, high S-Swell, overcast, hail, snow, Vis. 300-500 meters  
    04.00 AJ 7687    
    08.00 AJ 7688    
    09.07 AJ 7923 Surfaced.  Visibility 2 nm.  Continued on the surface.  
    12.00 AJ 7932 Day's run  Surfaced:        33.6 nm  
      Lat.:    51°51'N        "        Submerged:    22.7 nm  
      Long.:  47°13'W    
    13.00 AJ 8754 Difference between dead reckoning and actual position after a navigation fix:  126°T, 32 nm.  
    16.00 AJ 8756    
    20.00 AJ 8788    
           
    17.02.43 North Atlantic    
    00.00 AJ 8776    
    00.30 AJ 8874 Reached attack area. Back and forth on various courses in square AJ 88  
    04.00 AJ 8875    
    08.00 AJ 8844    
    09.31 AJ 8841 Test dive.  Boat remained submerged during twilight due to low visibility weather.  
      SW 6, Sea 5, 9/10, Vis. 1 nm  
    11.43 AJ 8841 Surfaced.  
    12.00 AJ 8841 Day's run  Surfaced:        76.6 nm  
      Lat.:    51°33'N        "        Submerged:      3.7 nm  
      Long.:  47°24'W    
    15.41 AJ 8872 Incoming Short Signal:  Convoy naval square AJ 9982, course 250°.    - Gräf -  
        Operated on it at highest speed, course 120°.  
    16.00 AJ 8872    
    16.23 AJ 8873 Incoming Radio Message 1607/17/816:  Naval square AJ 9986, course 230°.    - Gräf -  
    16.32   Incoming Radio Message 1612/17/817:  Group "Taifun" operate on Gräf-convoy.  
    17.15 AJ 8885 Incoming Radio Message 1701/17/819:  Over 20 steamers, widely separated.  No remote escort.  Naval square AJ 9988, course 115°, 9 knots, 36 cbm.    - Gräf -  
           
           
           
Sun and Moon Data 15.02.43
Sun and Moon Data 16.02.43
Sun and Moon Data 17.02.43
 
- 26 -
 
           
           
           
    continued      
    17.02.43      
    19.30 BC 2228 Difference between dead reckoning and actual position after a navigation fix:  100°T, 28.5 nm.  
    20.00 BC 2229    
    20.22   Incoming Radio Message 2008/17/823:  "U-201" sighted convoy 20.00 hours naval square BC 3211, course 220°.  
    20.37 BC 2229 Incoming Radio Message 1949/17:  Correction Lambda, Convoy naval square BC 3228, course 210°, 9 knots.  
                                                                   - Gräf -  
    21.37   Incoming Radio Message 2102/17/824:  "U-69" reports 20.57 hours, naval square BC 3252, course 210°.  
    21.43   Incoming Short Signal:  BC 3136, course 220°, speed 8 knots.                                                  - Rosenberg -  
    22.00 BC 2347 The strengthening east wind and associated overcoming water, begins to adversely impact lookouts.  Continued to operate on the convoy at GF.  
      E 5-6, Sea 4-5, overcast, rain, Vis. 3 nm  
    22.33   Incoming Radio Message 2217/17/826:  "Rosenberg" reported 22.07 hours convoy naval square BC 3136, course 220°, 8 knots.  
      Contact holder reports from "Gräf" and "Rosenberg" are about 30 nm apart.  Because the reports from "Rosenberg" are closer from now will operate on "Rosenberg" reports.  
    22.50   Incoming Short Signal:  Request bearing signals from contact holder.                                                - Mengersen -  
        From now at the appropriate times switched to bearing signal frequency.  No bearing signals received.  
           
    18.02.43 North Atlantic    
    00.00 BC 2385    
    01.20 BC 2397 Came to course 140° at GF because overcoming seas make further operations on course 120° impossible.  Intend to cross the course line of the convoy in BC 3441 and from there on course 40° against the convoy.  
    03.22   Incoming Radio Message 0311/18/834:  Group "Taifun" report position.  
    03.30 BC 3441 Ran to meet the convoy on course 40°.  Meeting must take place about 05.20 hours if navigation matches.  Up to now bearing signals are not heard.  
    04.02 BC 3417 Outgoing Short Signal:  My position is square BC 3417.  
                                                                   - U-186 -  
      The contents of the Short Signal were confirmed in Radio Message 0601/835, in which position "BC 3433" was given.  To avoid breaking radio silence once again, given the small difference between the given and actual position did not send a correction.  
    05.01 BC 3413                                   Dived to listen because the visibility is only 0.5 nm due to rain showers, depth A -50 meters.  No sound bearings.  Convoy must have passed by now.  
    06.00 BC 3415 Surfaced.  In the meantime it has freshened to a hurricane.  Ran along on course 120° at LF for the following reasons:  
      1)  This is the favorable course with the prevailing weather conditions.  
      2)  The course drives in the middle between the "Gräf" and "Rosenberg" reported convoy positions.  
           
           
Sun and Moon Data 17.02.43
Sun and Moon Data 18.02.43
 
- 27 -
 
           
           
           
    continued      
    18.02.43      
    08.00 BC 3515 Submerged due to the bad visibility and water entering through the diesel air shaft which can barely be pumped out.  
      SSW 11-12, Sea 9-10, overcast, Vis. 300-500 nm,  
      Intend to proceed slowly on course 220°, the direction of advance of the convoy, and operated further with improvement in the weather.  I believe that the convoy has heaved to or only moves ahead slowly.  Proceeded submerged at depth A -50 meters, LF.  
    11.38 BC 3417 Surfaced for very low frequency reception.  
    12.00 BC 3417 Day's run  Surfaced:        206.1 nm  
      Lat.:    49°49'N        "        Submerged:    12.1 nm  
      Long.:  42°57'W    
    12.18   Dived again because the weather has still not improved significantly.  
    14.30 BC 2663 Surfaced for very low frequency reception.  The sea is calmer, visibility has gotten better.  
    16.00 BC 2663 Continued on the surface.  
    17.16 BC 3444 Incoming Short Signal:  One destroyer, one steamer square BC 3472, weapons use is not possible due to weather conditions.                                          - Clausen -  
        Operated on Clausen report.  
    18.41 BC 3444 Incoming Radio Message 1801/18/849:  "Taifun" and "Haudegen"continue operation.  Expect low enemy speed.  Break off so that supply place can be reached with 6-8 cbm.  
    18.44 W 8-9, Sea 7-8, overcast, Vis. 1-2 nm Dived to listen.  No sound bearings.  Depth A -50 meters.   Continued submerged because the listening gear covers a greater area, than on the surface with the bad visibility.  
    20.00 BC 3444    
    21.37 BC 2666 Surfaced.  The sea has grown calmer.  Visibility 4-5 nm, therefore continued on the surface.  
    22.20 BC 2669 Incoming Short Signal:  Naval square BC 2693, course 230°, speed 6 knots.                            - Clausen -  
    22.48 BC 2669 Incoming Radio Message 2102/18/853:  1)  Enemy report "Clausen" naval square BC 3447, course 270°, speed as little as 4 knots.  2)  "Mengersen" requests bearing signals from contact holder.  
      From now manned bearing frequency.  At 23.21 and 00.12 hours faint bearing signals received, Volume 1-2, exact determination of the side and the minimum is not possible because the bearing signals were sent too short briefly and faintly.  
    23.29 BC 2693                                   Still nothing seen.  Dived to listen.  No sound bearings, despite the boat being in the same square as the convoy.  
    23.40 BC 2693 Surfaced.  
        Incoming Short Signal:  Enemy located naval square BC 2696, course 250°, 6 knots.                  - Clausen -  
      Operated on new bearing on course 180°!  Bearing signals are no longer heard.  
           
    19.02.43 North Atlantic    
    00.00 BC 2693    
    00.38   Incoming Short Signal:  Enemy located square BC 2695, speed 5 knots.                                     - Clausen -  
    00.46   Enemy must be seen in the good visibility of 3-4 nm, dived to listen.  
    01.04   Faint sound bearing in 140°T.  
    01.16   Surfaced, pursued, nothing seen.  
           
           
           
Sun and Moon Data 18.02.43
Sun and Moon Data 19.02.43
 
- 28 -
 
           
           
           
    continued      
    19.02.43      
    01.57   Again dived to listen.  No sound bearings.  It may have been the sound bearing from own U-boat..  
    02.18 BC 2692 Surfaced.  Continued to operate on the last report from "Clausen".  
    02.38   Incoming Radio Message 0218/19/804:  10 steamers naval square BC 2692, sending bearing signals since 21.00 hours.  
                                                                   - Clausen -  
    02.57 Proper bearing signal are still not heard although the boat must be quite close to Clausen.  
        Incoming Short Signal:  Convoy BC 3794, course 230°.  
                                                                   - Borchers -  
    03.00 BC 2645 Continued to operate on Clausen convoy because Borchers is too far away.  
        Difference between dead reckoning and actual position after a navigation fix:  290°T, 38 nm.  
    04.00 BC 2654 Improved position at highest speed in accordance with navigation fix.  
    05.00 BC 2657 Outgoing Short Signal:  Position naval square BC 2657, up to now no bearing signals heard.             - U-186 -  
        Incoming Radio Message 0442/19/870:  Convoy BC 2682, course 270°, 6 knots, stand by for bearing signals.  
                                                                   - Clausen -  
    05.56 BC 2682, SSE 3-4, Sea 3, overcast, Vis. 4-5 nm Dived to listen.  No sound bearings.  
    06.07 BC 2681 Surfaced.  
    06.30   Incoming Radio Message 0614/19/873:  Clausen convoy 06.07 hours naval square BC 2685, course 240°.  
    07.54   Incoming Short Signal:  Convoy square BC 2676.  
    07.55 BC 2687 Dived to listen.  
    08.37 BC 2688 Sound bearing in 120°T.  
    08.42   Surfaced.  Pursued in the direction of the last sound bearing.  Nothing seen, although visibility is good.  
    09.23   Dived to listen, no sound bearings.  
    10.16 BC 2688 Surfaced.  Continued to operate on the last report from Clausen.  
    10.33   Incoming Radio Message 1022/19/883:  10.30 hours broke off, 10 cbm, short wave transmitter out of service since 06.00 hours.                                           - Clausen -  
    12.00 BC 2674 Day's run  Surfaced:        120 nm  
      Lat.:    49°1_'N        "        Submerged:    16.2 nm  
      Long.:  47°27'W [lat. long. is in error square BC 2674 plots correctly]  
    15.54 BC 2597 Incoming Short Signal:  Convoy up to 5 steamers, BC 2938, course 250°, speed 7 knots.                       - Drewitz -  
      SW 5-6, Sea 5, 7/10, hail showers, Vis. 3-6 nm  
      Operated on the report from "Drewitz" on course 140° at highest possible speed with the Sea State.  Further search for the "Clausen" convoy seems pointless because I should have reached the enemy several times if the navigation matched and because there is no further contact holder at the convoy who could send bearing signals if need be.  
    16.05   Outgoing Short Signal:  Request bearing signals from contact holder.                                                    - Hesemann -  
    16.39   Incoming Radio Message 1631/19/891:  Operating on "Drewitz" report.  
    17.23   Bearing signals received from Drewitz, bearing 182°.  
           
           
           
Sun and Moon Data 19.02.43
- 29 -
           
           
           
    continued      
    19.02.43 Side inexact also the bearing.  Therefore the bearing was still not taken into account.  
    17.29 BC 2832 Incoming Short Signal:  New position of the enemy is square BC 2629, course 260°, speed 6 knots.  
      By this contact holder report the precious bearing signals can only be from the other side.  Therefore operated further on the convoy on course 320°.  
    17.40   Incoming Radio Message 1659/19/892:  After breaking off the operation head for the supply square at most economical speed.  At most fill to 35 cbm.  Each third boat report completion.  After supply return transit to France.  
    17.54                                                  Bearing signals from "Drewitz" bearing 354°T.  Operated further on the bearing because by the bearing the enemy must be much further to the west than from the contact holder reports.  
    19.56 By Short Signal "Drewitz" corrects his last Short Signal of 17.29 hours to BC 2629, course 240°, speed 4 knots.  
    20.00 BC 2598    
    20.59 BC 2595                                   Again submerged to listen, because the visibility only amounts to 2 nm and according to report from "Gretschel" the destroyer must be in this square.  No sound bearings.  
    21.55 BC 2595 Surfaced.  
    22.11   Incoming Radio Message 2126/19/899:  Last convoy position 19.50 hours naval square 2652.  
    23.20 Crossed the enemy course line.  Because there have been no further bearing signals since 17.54 hours operated further on the last contact holder report.  
           
    20.02.43 North Atlantic    
    00.00 BC 2591 The attempt to run towards the enemy on course 50° cannot be carried out due the prevailing stern sea.  Therefore ran back and forth in position 10 nm to each side of the course line of the enemy  
      W 7-8, Sea 7, overcast, Vis. 1-3 nm  
    01.26 BC 2598 Dived to listen.  No sound bearings.  
    01.50   Surfaced.  
    04.00 BC 2591    
    08.00 BC 2594    
    09.37 BC 2567 Test dive.  
    10.47   Surfaced.  
    12.00 BC 2567 Day's run  Surfaced:        148.7 nm  
      Lat.:    49°31'N        "        Submerged:       17.5 nm  
      Long.:  44°50'W    
    12.16                                                  Incoming Radio Message 0945/20/:  To "Taifun".  If there is no contact by lightness break off operation, report fuel and go to supply place.  
      Broke off operation because since 22.11 hours no further contact holder reports were received and a further search seems hopeless.  Headed for supply place with diesel-electric.  
    12.31   Outgoing Radio Message 1149/20/811:  Searched for "Drewitz" convoy without results.  Began return transit.  Naval square BC 2591, 31 cbm, WSW 8, Sea 7, overcast, snow, Vis. 1-6 nm, 1014 mb.                      - Hesemann -  
    16.00 BC 2596    
    20.00 BC 2911    
    20.25 BC 2691 Dived to proceed submerged at depth A -50 meters because the boat cannot steer a direct course to the supply square due to the stern sea.  
      WSW 6, Sea 6, overcast, snow shower, Vis. changing 500 meters - 3 nm  
      Difference between dead reckoning and actual position after a navigation fix:  69°T, 47.6 nm.  
           
Sun and Moon Data 19.02.43
Sun and Moon Data 20.02.43
 
- 30 -
 
           
           
           
    continued      
    20.02.43      
    22.04   Surfaced. the sea has grown calmer.  Continued on the surface.  
    23.52 BC 3474 Reported weather in accordance with Radio Message 2119/20/822:  
           
    21.02.43 North Atlantic    
    00.00 BC 3478    
    04.00 BC 3731    
    08.00 BC 3819    
    09.06 BC 3827 Test dive.  
    10.57 BC 3852 Surfaced.  
    12.00 BC 3853 Day's run  Surfaced:        126.8 nm  
      Lat.:    48°48'N        "        Submerged:       8.7 nm  
      Long.:  40°34'W    
      SSW 6, Sea 4, 8/10, Vis. 10 nm    
    16.00 BC 3944 Difference between dead reckoning and actual position after a navigation fix:  35°T, 3.7 nm.  
    20.00 BC 3917    
    20.29   Incoming Radio Message 2006/20/824:  Supply group "Schnoor", new meeting point is BC 4595 [typo BD 4595].  SW-bound convoy at the moment in naval square BD 37.  Group "Ritter" and "Knappen" are operating on it.  Information concerning ongoing operation for any short-term operation follows.  
    22.07 BC 3951 Dived to replace cylinder head starboard V, proceeded submerged depth A -50 meters.  
           
    22.02.43 North Atlantic    
    00.00 BC 3951    
    03.52 BC 3956 Surfaced.  
    08.00 BC 3999    
    09.37  

Incoming Radio Message 0847/22/845:  Boats at    "Schnoor", as far as possible operate on convoy.  Efficient fuel consumption, in 5 days "Vowe" will be in BD 31 for further supply.

 
    12.00 BD 4117 Day's run  Surfaced:        103.3 nm  
      Lat.:    38°12.5'N        "        Submerged:       14.2 nm  
      Long.:  48°2.5'W    
      SW 5, Sea 4, overcast, rain, Vis. 6-7 nm    
    16.00 BD 4159    
    19.20   Incoming Radio Message 1837/22/848:  New supply square BD 4355.  
    20.00 BD 4199    
    20.04 BD 4196 Incoming Short Signal:  Convoy square BD 5441.  
                                                                   - Döhler -  
    20.20 BD 4196 Incoming Short Signal:  BD 4639, course 250°.  
                                                                   - Hasenschar -  
    20.29   Incoming Short Signal:  Stand by for my bearing signals.  
                                                                   - Hasenschar -  
    20.30 Due to the shift of the supply square I now decide to operate on the west-bound convoy before supply because the fuel situation allows.  Operated on the convoy at HF in accordance with the contact holder reports.  
    22.46   Incoming Short Signal:  Convoy naval square BD 4665.  
                                                                   - Ölrich -  
           
Sun and Moon Data 20.02.43
Sun and Moon Data 21.02.43
Sun and Moon Data 22.02.43
 
- 31 -
 
           
           
           
    continued      
    22.02.43      
    22.56   Incoming Radio Message:  Enemy located naval square BD 4653, course 240°, speed 7 knots, star shells over convoy.  
                                                                   - Hasenschar -  
        Continued to operate on contact holder reports.  
           
    23.02.43      
    00.00 BD 4528    
    03.16 BD 4672 Must have reached the convoy, nothing seen.  Dived to listen.  
    03.23   3 detonations.  
    03.25   1 detonation, all at long range.  
    03.27   Faint sound bearing from 110°T.  
    03.29   Surfaced.  Came to course 140° to establish the rough shift of the convoy.  
    03.50   Still nothing seen, dived to listen.  
    03.57   Sound bearing in 125°T.  
    04.00   Surfaced, came to course 150°, to pursue.  
    04.13 BD 6473 2 briefly illuminated horizontally juxtaposed red lights bearing 130°T, just over the horizon.  
    04.30 BD 4675 Shadow bearing 263°T, range = 1800 meters, that is made out as a destroyer.  In 150°T several shadows.  Maneuvered ahead on the starboard side of the convoy which steers about 250 at 2 x HF to attack.  Higher speed setting cannot be run due to overcoming seas.  
    04.31   Incoming Short Signal:  Convoy square BD 4641.  
                                                                   - Wächter -  
    05.22   Outgoing Short Signal:  Enemy located square BD 4675.  
                                                                   - Hesemann -  
    05.37   Incoming Short Signal:  Convoy BD 4566, course 230°, speed 8 knots.  
                                                                   - Wächter -  
    05.54   Incoming Short Signal:  Convoy naval square 4562, course 240°, speed 7 knots.  
                                                                   - Hasenschar -  
      Sent no further contact holder reports because there are 2 contact holders at the convoy.  Convoy consists of up to now recognized 16 steamers in a broad formation.  Starboard abeam and starboard ahead 1 destroyer each, that are located  about 1000 to 1500 meters from the formation.  
    06.48 BD 4835 Boat is positioned ahead of the convoy.  Dived for submerged attack because on the surface attack is only possible from long range, with associated low hit possibility.  
      SW 3-4, Sea 3, high Swell rain showers, Vis. 2-3 nm  
    07.02 Ran along on the course direction of the convoy now 225° at KF.  Convoy is just in a rain shower, can still not be seen in the periscope.  Came to course 240°, HF, to run a bit against the convoy because by sound bearings the enemy is positioned astern to starboard.  
    07.06 Came to course 270° because by sound bearings the convoy has shifted further ahead to starboard.  Therefore the convoy must have zigzagged to starboard so that the boat is now on the port side and not as intended ahead of him.  
    07.09 Astern bearing 90°T, range =1000 meters a destroyer with target angle 90°.  The destroyer was illuminated by the moon and was therefore only distinguished as a faint light spot.  For a stern shot or also a two-fan from tubes V and VI the data is too inexact to have any reasonable prospect of success.  
           
Sun and Moon Data 22.02.43
Sun and Moon Data 23.02.43
 
- 32 -
 
           
           
           
    continued      
    23.02.43      
    To 07.09   The destroyer is probably the port center escort of the convoy.  
    07.13 3 torpedo detonations, medium range.  Afterwards a few star shells over the convoy.  The torpedoes were probably shot from starboard so that a turn to port by the enemy can be expected.  
    07.16 2 further torpedo detonations at the same range.  As expected, the convoy turns about 30-40° to port.  
    07.22 Came to course 290° (about attack course on the general course line).  About 7 to 8 shadows are distinguished ahead.  Range 2500 meters.  
    07.30 2 large shadows, which just now overlap, come into a favorable shooting position.  The left shadow was made out as a 6000 GRT size freighter (2 masts, on the forecastle two pole masts).  The right as a 7000 GRT size freighter (2 masts, on the forecastle and on the stern 1 pole mast each, relatively large midship superstructure).  
    07.33 Four-fan from tube 1 to 4 with aim point stern of the forward steamer, bow of the after steamer.  Target speed 9 knots, target angle = 90°, lead angle = 17.5°, depth 3 meters, torpedo velocity = 30 knots, estimated range 2000 meters.  
      3 detonations after 2 minutes 32 seconds, 2 minutes 35 seconds, and 2 minutes 41 seconds.  The first detonation could still observed on the right shadow in the after part of the ship before the periscope was over spilled.  By this the right steamer received 2 hits and the left steamer one hit.  This was also confirmed in the listening gear.  After about 1 to 2 minutes bulkhead cracking and typical sinking sounds in the direction of the detonations.  
    07.40 The periscope comes free again. Star shells over the convoy.  After all around sweep in the direction of the shooting direction only 1 steamer is still distinguished, however the stern is already awash.  Because this shadow has only a forward pole mast it is the left.  The 7000-tonner must have already sunk.  Turned away to port, to bring tubes 5 and 6 to bear on the convoy.  
    07.42 A large shadow is seen abeam to port, range = 800 meters, target angle 0°, is to be shot with tubes 5 and 6, came to GF to get suitable shooting data.  
    07.46 2-fan from tubes 5 and 6, target speed = 7 knots, target angle = 80°, lead angle = 13.5°, depth 3 meters, torpedo speed 30 knots, estimated range = 400 meters.  Directly after the shot went the enemy turns away hard to starboard to target angle 180°, the torpedoes miss this target, probably the torpedoes passed on both sides.  However in the direction of the torpedoes there are still several shadows distinguished at greater range, close by one another, probably the largest of the convoy.  The torpedoes were followed in the listening gear.  After 7 minutes 12 seconds and 7 minutes 32 seconds each one detonation, these must have been our two torpedoes which became hits almost at the end of their running track.  Up to the detonations both torpedoes were followed in the sound gear.  Due to the spread angle it must have been two different vessels.  Effects were not observed through the periscope.  
    08.01 3 torpedo detonations.  Over the convoy a huge fireworks, about 30 star shells.  Any formation in the convoy can no longer be recognized, all drive wildly confused.  Came to course 40°, to get behind the convoy and to be able to surface, to reload tubes 5 and 6.  
    08.10 2 further torpedo detonations.    
    08.12 Because the periscope is overspilled for a few minutes and no all around sweep can be taken, went to depth A -50 meters.  
           
           
Sun and Moon Data 23.02.43
 
- 33 -
 
           
           
           
    continued      
    23.02.43      
    08.19 Loud torpedo sounds bearing 335°T, it only shifts a little.  Went to depth A +0 meters.  Turned away to starboard, to possibly show the destroyer the stern and went to silent running.  Destroyer stops, probably to listen.  
    08.28 Destroyer gets underway again.  Bearing is steady.  
    08.34 2 depth charges, close.  Went to depth A +40 meters.  At silent running settled through slowly to depth A +55 meters.  
    08.38 1 depth charge, close.    
    08.39 Destroyer sounds shift slowly astern and grew fainter.  
    08.49 Sound bearing very faint.   Went to depth A -30 meters and hard starboard to course 180°, to get further from the convoy.  
    09.05 Surfaced.  In the morning twilight 1 shadow bearing 310°T, came to course 340° to get a closer look at the shadow.  
    09.33 Came to course 50°, because the shadow gets larger quickly in the morning twilight.  
    09.35 Another shadow bearing 10°T.    
    09.48 At these shadows one medium freighter 1 destroyer is distinguished.  The suspicion that both shadows are lying stopped or only moving very slightly, was confirmed by bearings.  
    09.51 Came to course 230°, initially to operate on the 1st shadow.  
    09.57 3 detonations, probably torpedoes.  
    10.04 2 detonations, probably torpedoes.  
    10.08 1 detonation, probably a torpedo.  Shadow is now grown very large and was made out as a medium tanker.  Submerged to initiate attack on the tanker.  
    10.13 4 detonations, probably torpedoes.  Held onto the destroyer at LF.  
    10.20 Only ran at LF to not be heard by the tanker.  In the listening gear it was determined that the tanker tried to start his engine several times, however immediately stopped again.  
    11.30 Shot from tube 5:  target speed = 0, target angle = 90°, lead angle = 0°, depth 3 meters, torpedo velocity = 30 knots, estimated range = 500 meters.  Detonation after 12 seconds hit aft 30 meters.  Directly after the hit the stern quickly settles deeper, it is entirely awash.  Then the aftership breaks off completely at the level of the hit, the other part of the tanker remains afloat.  
    11.41 3 torpedo detonations.    
    11.43 1 torpedo detonation.    
    11.44 1 torpedo detonation.    
    11.50 In the direction of the 2nd shadow explosion columns from torpedo detonations were seen so that probably another U-boat has hit this wounded vessel.  The rest of the tanker still floats without settling noticeably deeper.  2 lifeboats are launched from the tanker.  The remainder of the crew about 20 men float in the water, most already dead.  Held onto the lifeboats to take over the Captain.  However in the boats which are occupied by about 15 men, except for 3 young Europeans there are only Chinese.  The Captain is not there.  In the meantime one lifeboat capsizes so that these 15 men swim in the water.  On the lifeboats was on the stern a wooden sign with the name "EULIMA".  The name was also confirmed by questioning the shipwrecked.  
    12.00 SW 4, Sea 3-4, 8/10, Vis. 8 nm Day's run  Surfaced:        216 nm  
             "        Submerged:      22.4 nm  
    12.32 U-boat in sight on the horizon bearing 80°T.  The remains of the tanker have not sunk further.  To save the last torpedo below deck the tanker was shot with artillery, although the prevailing Sea State is the extreme limit for shelling.  
           
           
           
Sun and Moon Data 23.02.43
 
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    continued      
    23.02.43      
    12.32   Outgoing Radio Message 1039/23/890:  Reported success to date and destruction of the convoy.  
    13.10 80 shells with about 70 hits are shot from closest range without the tanker noticeably sinking, although it has bit of a list to port.  The side of the hull and the over deck are already completely holed.  So as not to have to use a torpedo continued to shoot with the remaining ammunition.  
    13.54 Finally after 120 shots with about 100 hits the tanker capsizes, however remains jutting a little above the water in a capsized condition however still floating.  
    14.12 Now air holes were shot in the part of the tanker wreck protruding from the water with the MG C 30  
    14.26 Finally the tanker sinks.  
    13.56 U-boat in sight bearing 90°T, that approaches us.  
    14.33 Recognition signals exchanged with the U-boat.  It is "Schamong".  
    14.45 Signal traffic with "Schamong".    
    15.20 Operation broken off, because there is only 1 stern torpedo below deck and only 20 cbm available and additionally there are still other boats at the convoy holding contact.  Headed for square BD 4355 at economical speed.  
    15.47 BD 4835 Outgoing Radio Message 1547/23/899:  Reported sinking tanker "EULIMA".  
    16.00 BD 4832    
    16.18   Dived to balance the boat.  
    17.11   Surfaced.  
    18.45 BD 4644 Difference between dead reckoning and actual position after a navigation fix:  26°T, 17 nm.  
    20.00 BD 4645    
           
    24.02.43 North Atlantic    
    00.00 BD 4616    
    00.10   A red light bearing 25°T, that immediately goes out again.  Closed at GF.  
    00.32 BD 4216                                  Nothing seen.  Dived to listen, no sound bearings.  It is suspected that it was a red star shot from a life boat.  
    00.54 BD 4613 Surfaced.  
    04.00 BD 4381    
    08.00 BD 4354    
    08.35 BD 4335 Reached supply place by plotting, back and forth in position on one E-motor at LF.  
    11.35 BD 1987 Difference between dead reckoning and actual position after a navigation fix:  346°T, 43.4 nm.  
    12.00 BD 1987 Day's run  Surfaced:        107.3 nm  
      Lat.:    48°21'N        "        Submerged:       3.3 nm  
      Long.:  34°58'W    
      WNW 6, Sea 4-5, overcast, Vis. 12 nm    
    15.20 BD 4355 Reached supply place.  Nothing seen.  
    15.21   Dived to listen, no sound bearings.  
    15.48   Surfaced.  
    16.20   Bearing signals from "Schnoor" were received that were requested from "Wächter".  Bearing in 285°T.  Came to course 285.  
    17.02 BD 4355 Dived to listen because nothing is seen.  
        Faint sound bearing in 280°T.  
    17.19   Surfaced.  Pursued in the direction of the last sound bearing.  
           
           
Sun and Moon Data 23.02.43
Sun and Moon Data 24.02.43
 
- 35 -
 
           
           
           
    continued      
    24.02.43      
    18.30   Difference between dead reckoning and actual position after a navigation fix:  345°T, 1.3 nm.  
    18.52   Bearing signals requested by Short Signal, because nothing is seen and the supplier must be reached before the beginning of darkness.  
    19.05 BD 4343 2 U-boats on the horizon bearing 280°T, closed them.  After Recognition Signal exchange they are recognized as "Schnoor" and "Wächter".   
    19.35   Incoming Radio Message 1834/24/882:  1)  "Wächter" and "Heine" should take over the rest of the fuel from      "Schnoor".  "Hesemann" supply from "Vowe".  
    20.48   After discussion with "Schnoor" he has just enough fuel to give.  
        Outgoing Radio Message 2005/24/886:  Am already at "Schnoor".  Request exchange with "Heine".  - Hesemann -  
      The boat drifts in the vicinity of the two other boats.  Supply should be completed on 25 February.  Doctor on board to examine an ear patient from artillery shooting and another mildly ill.  
    22.18   Incoming Radio Message 2149/24/819:  "Hesemann" should supply from "Schnoor", "Heine" at "Vowe".  
           
    25.02.43 North Atlantic    
    00.00 BD 4346    
    04.00 BD 4346    
    06.15 BD 4532 Difference between dead reckoning and actual position after a navigation fix:  52°T, 10.4 nm.  
    08.00 BD 4352    
    10.20 Began taking over fuel and provisions.  Transfer of 24 cbm fuel and provisions for 10 days goes smoothly.  
    12.00 BD 4352 Day's run  Surfaced:        47.2 nm  
      Lat.:    47°55'N        "        Submerged:      1.6 nm  
      Long.:  34°47'W    
      S 2-3, Sea 1-2, overcast, Vis. 10-12 nm    
    14.22 Supply ended.  Moved off on course 83° and diesel-electric.  Reported that "Schnoor" will complete supply and begin return transit.  
    15.01 BD 4364 Test dive.  
    15.32   Sound bearing in 220°, diesel sounds.  In the periscope a U-boat bearing 220°, probably "Wächter".  
    15.51   Surfaced.  Recognition signals exchanged.  
    22.00 BD 5144 With the favorable weather conditions began the downloading of the 6 Atos in canisters into the bow room.  
      S 2-3, Sea 1-2, Vis. 1 nm  
           
    26.02.43 North Atlantic    
    00.00 BD 5146    
    03.30   Downloading ended.  Continued transit.  
    04.00 BD 5157    
    05.00 BD 5158 Dived to balance the boat.  
    05.54   Surfaced.  
    08.00 BD 5264    
    12.00 BD 5245 Day's run  Surfaced:        96.3 nm  
      Lat.:    47°52'N        "        Submerged:      4.1 nm  
      Long.:  32°14'W    
      SSE 5, Sea 3, 8/10, overcast, Vis. 8-10 nm    
    16.00 BD 5228    
    17.00 BD 5228 Difference between dead reckoning and actual position after a navigation fix:  317°T, 12.1 nm.  
    19.06 BD 5226 Crash dive for training.  
           
           
Sun and Moon Data 24.02.43
Sun and Moon Data 25.02.43
Sun and Moon Data 26.02.43
 
- 36 -
 
           
           
           
    continued      
    26.02.43      
    19.44 BD 5234 Surfaced.  
    20.00 BD 5234    
    21.31   Incoming Radio Message 1845/26/869:  "Hesemann" tonight report weather by Short Signal and from 27 February at 08.00 hours switch to Coastal Circuit.  
           
    27.02.43 North Atlantic    
    00.00 BD 5211 Difference between dead reckoning and actual position after a navigation fix:  3°T, 6 nm.  
    00.57   Reported weather by Short Signal.  
    04.00 BD 2981    
    07.40 BD 2998 Test dive.  
    08.12   Surfaced.  
    12.00 BD 3738 Day's run  Surfaced:        118.0 nm  
      Lat.:    48°23'N        "        Submerged:       3.1 nm  
      Long.:  29°16'W    
      S 6, Sea 5, 5/10, Vis. 10 nm    
    16.00 BD 3785    
    19.00 BD 3783 Difference between dead reckoning and actual position after a navigation fix:  326°T, 10.1 nm.  
    20.00 BD 3783    
           
    28.02.43 North Atlantic    
    00.00 BD 3871    
    04.00 BD 3831    
    07.35 BD 3895 Test dive.  
    08.16   Surfaced.  
    08.42 BD 3972 Difference between dead reckoning and actual position after a navigation fix:  70°T, 17 nm.  
    12.00 BD 3983 Day's run  Surfaced:        129.5 nm  
      Lat.:    48°32'N        "        Submerged:       1.4 nm  
      Long.:  25°38'W    
      S 1-2, Sea 1, 1/10, Vis. 12-14 nm    
    15.19   Incoming Radio Message 1340/28/33:  Return harbor is Lorient.  
    15.41 BE 1771 Crash dive for training.  
    16.00   Surfaced.  
    20.00 BE 1872    
           
    01.03.43 North Atlantic    
    00.00 BE 1792 Difference between dead reckoning and actual position after a navigation fix:  289°T, 7.1 nm.  
    04.00 BE 1873    
    07.03 BE 1883 Test dive.  
    08.00 BE 1891 Surfaced.  
    12.00 BD 1972 Day's run  Surfaced:        144.4 nm  
      Lat.:    48°31'N        "        Submerged:       4.0 nm  
      Long.:  23°41'W    
      ESE 3, Sea 1-2, 5/10, Vis. 10-12 nm    
    12.12 BE 1973 Difference between dead reckoning and actual position after a navigation fix:  65°T, 4.8 nm.  
    16.00 BE 1995    
    20.00 BE 2784    
           
    02.03.43 North Atlantic    
    00.00 BE 2799    
    04.00 BE 5223    
    08.00 BE 5315    
    12.00 BE 5334 Day's run  Surfaced:      186.7 nm  
      Lat.:    48°06'N        "        Submerged:       . / . nm  
      Long.:  16°30'W    
      E 4, Sea 3-5, 4/10, Vis. 10-12 nm    
           
           
Sun and Moon Data 26.02.43
Sun and Moon Data 27.02.43
Sun and Moon Data 28.02.43
Sun and Moon Data 01.03.43
Sun and Moon Data 02.03.43
 
- 37 -
 
           
           
           
    continued      
    02.03.43      
    16.00 BE 5339    
    20.00 BE 6116    
           
    03.03.43 North Atlantic    
    00.00 BE 6139    
    04.00 BE 6265    
    05.00   By Short Signal reported:  Am 48 hours off escort.  
    08.00 BE 6383    
      ENE 4, Sea 3, 9/10, Vis. 5 nm    
    08.05   Dived to proceed submerged depth A -40 meters.  
    12.00 BE 6393 Day's run  Surfaced:        176 nm  
      Lat.:    47°37'N        "        Submerged:      14 nm  
      Long.:  12°01'W    
    16.00 BE 6369    
    17.01   Incoming Radio Message 1334/3/88:  "U-186" escort positioned on 5 March at 06.30 hours at Point Laterne.   
                                                                - 10.U-Flottille -  
    19.45 BF 4175    
    20.00 BF 4175    
           
    04.03.43 Bay of Biscay    
    00.00 BF 4191    
    00.42 BF 4512 A white light bearing 73°T, probably a fishing trawler.  Avoided.  
    01.34   Light passed out of sight bearing 250°T.  
    04.00 BF 4534    
    07.55 ENE 3-4, Sea 3, overcast, Vis. 2 nm Dived to proceed submerged, depth A -40 meters.  
    12.00 BF 4662 Day's run  Surfaced:        159 nm  
      Lat.:    47°01'N        "        Submerged:      3.4 nm  
      Long.:  7°14'W    
    16.00 BF 5458    
    19.23 BF 5467 Surfaced.  
    20.00 BF 5468    
    23.45 BF 5571 Aircraft overflies the boat at an altitude of 200 meters coming from 110°T.  Course 290°, type not recognized.  Aircraft was first recognized by aircraft sounds over the boat!  
           
    05.03.43 Bay of Biscay    
    00.00 BF 5571 Surfaced.  
    00.25   Surfaced.  
    04.00 BF 5532    
    04.50   Fu.M.B. detection on 160 cm, horizontally polarized.  
        Crash dive depth A -20 meters.  
    05.58   Surfaced.  
    06.15   Aircraft sounds.  Crash dived, depth A -30 meters.  
    07.55 BF 6175 Escort in sight.  
    08.00   Taken in convoy.  
    11.00   Entered Lorient.  
           
           
        On board 5 March 1943.  
                                         
                                                Kaptlt. and Kmdt.  
           
           
Sun and Moon Data 02.03.43
Sun and Moon Data 03.03.43
Sun and Moon Data 04.03.43
Sun and Moon Data 05.03.43

Appendices to U-186's KTB - click on the text at left to proceed to the documents
Radio Excerpt of the Radio Log

 
 
     
     
 

Comments of the Befehlshabers der Unterseeboote

 
 
on the Kriegstagebuch of U-186 from 10.7. - 5.3.1943.
 
 

 

 
           First patrol of the Kommandanten with a new boat.  
          The Kommandant led his boat with good tactical understanding and sense on the first patrol to a very pleasing success.  The attack on the "Wächter-convoy" on 23 February is considered especially fortunate and well done.  
          Otherwise nothing to note.  
     
     
   

For the Befehlshaber der Unterseeboote.

 
    - The Chief of the Operations Department -  
  Accredited success:                      
  Ships    25,207 GRT sunk.  
     
                              
     
     
 


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