U-164 - 1st War Patrol

Translation by Jerry Mason

Departed
Date
Arrived
Date
Days at Sea
Kiel
18 July 1942
Lorient
7 October 1942
82

 

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Ships Hit
Date
KTB Time
Position
Ship
Tons
Nationality
Convoy
25 Aug 42
18.25 - 22.03
16°33'N, 73°27'W
STAD AMSTERDAM
3,780
Netherlands
WAT-15
6 Sep 42
22.28
14°27'N, 71°33'W
SAN GIL
1,745
Canadian
GAT-2
     
 Total = 5,525
   
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  164  "
                             -=-=-=-=-=-=-=-=-=-=-=-=-
           
           
      Kommandant        :         Korv.-Kapt.    F  e  c  h  n  e  r  .  
           
      Beginning              :         28. November 1941.  
           
      Concluding           :         7. October 1942.  
           
                                                 - - - - - - - -  
           
     
Distribution           :    
Oberkommando der Kriegsmarine Copy No. 1 and 2
Befehlshaber der Unterseeboote     "       " 3
2. Admiral der Unterseeboote     "       " 4
10. Unterseebootsflottille     "       " 5
27. U-Flottille for 2 U.L.D. and 25. U-Flottille     "       " 6
AGRU Front, Kptlt. Jebsen, for 26. U-Flottille,    
                      1, U.L.D. and 24. U-Flottille     "       " 7
 
           
     
Enclosures              :    
1 Track chart To Copy No. 1, 3, 4, 5.
5 Torpedo firing reports   "      "      " 3. 4, 5.
1 Excerpt of the Radio Log   "      "      " 3, 4, 5.
9 Barograph strips   "      "      " 3.
 
           
           
           
           
           
           
           
        © U-boat Archive 2014  - all rights reserved  
Click the flag to view the above page from the original German KTB
 
- 1 -
 
           
           
           
           
    28.11.41
Wesermünde
Commissioning by Kommandant Korv.Kpt. Fechner.  
    10.00
   
    19. - 30.11.41
          "
Took over the boat.  
    01.12.41           " Maneuvering training in the fishing harbor, afterwards 1st trim test.  
    02. - 05.12.41
          "
Drills at Action stations and training.  
    06.12.41 Weser Engine and rudder training on the Weser.  
    07.12.41 Deutsche Bucht Transfer cruise to Kiel.  Made fast for the night in Brunsbüttel.  
    08.12.41 Kaiser Wilhelm Canal, Kiel Canal cruise.  
    15.00   Made fast at the U-boat pier, Kiel  
    09. - 15.12.41 Kiel U.A.K. testing.  
    15.12.41  -    " Shipyard period of the boat due to engine damage (water in the lubricating oil).  
    28.01.42 Deutsche Werke  
    29.01.42 Kiel Test dive.  
    30.01.42    " U.A.K. testing in the harbor.  
    31.01. - 06.04.42    " Idle period for the boat, caused by icing on the Baltic.  
    07. - 17.04.42    " Remainder of testing by U.A.K.  
    18. - 20.04.42 Baltic Transit in convoy to the east.  
    20. - 23.04.42 Danzig Bay T.E.K. testing in Gotenhafen.  
    24.04.42      "       " Cruise to Danzig to U.A.G. I.  
    25. - 28.04.42      "       " Testing by U.A.G. in Danzig.  
    29.04. - 09.05.42      "       " Training with the Agru-Front in Hela.  
    10. - 17.05.42 Pillau Torpedo shooting with the 26. U.-Flottille (including night shooting)  
    18.05.42 Danzig Brief instructions for tactical training.  
    06.00   (tactical training ashore)  
    19. - 29.05.42 Danzig, Eastern Baltic Tactical training.  
    29. - 30.05.42 Eastern and Central Baltic Transit to Rönne and sound trials in Nexö.  
    30.05. - 01.06.42 Stettin Reported to the 4. U-Flottille.  
    01. - 02.06.42 Western Baltic Transit to Kiel.  Consultation with U.A.K concerning ballasting, report to 2. A.d.U.  
    16.00 Kaiser Wilhelm Canal Continued transit to Brunsbüttel.  
    03.06.42 Deutsche Bucht With Sperrbrecher escort cruise through the Deutsche Bucht to Wilhelmshaven for final adjustments and overhaul.  
    04.06.42 Wilhelmshaven Boat cleared and shifted in the shipyard.  
    05.06. 06.07.42            " Final adjustments and overhaul in the shipyard.  
    06.07.42            " Boat shifted from the shipyard to the U-boat base.  
    07.07.42            " Took over the boat.  Afternoon loading of artillery ammunition.  
    08.07.42            " Torpedo transfer.  
    09.07.42            " Provisions loading, degaussing.  
    10.07.42            " Provisions loading, magnetic compass calibration, trim test.  
    11.07.42            " Boat placed in readiness.  
    12. - 14.07.42            " Boat is ready to depart.  
        Lay time in the U-boat base in Wilhelmshaven.  
           
                                              
           
           
           
 
 
K  r  i  e  g  s  t  a  g  e  b  u  c  h    "  U  1  6  4  "        - 1 -
 
           
           
           
           
    15.07.42 Wilhelmshaven Cast off from the U-boat base for transit to Kiel.  
    05.00      
    06.05 Deutsche Bucht Began transit with mine escort from III Entrance.  Proceeded through the Deutsche Bucht on "Route Red" for Brunsbüttel, afterwards Canal cruise.  
      NW 2, Vis. good, lightly cloudy  
    21.05   Made fast Tirpitz Mole, Kiel.  
           
    16.07.42 Kiel Radio direction finder calibration and tuning of the rod antenna.  Final outfitting, fuel loading and fresh provisions loading  
           
    17.07.42 Kiel Final trim test, afterwards oil loaded in the regulating and reserve fuel oil tank.  
                                              
    18.07.42      
    07.00 Kiel Ready for sea.  
    07.20 Kiel Bucht Passed Fr.Ort barrier.  
    10.00 NW 1, overcast, occasional rain showers Ground mine escort met at "Red 15".  
    10.05   Radio Message to 5.U-Flottille:  With Strehlow, Lemke and "U-629" taken in convoy, switched to "Karl Otto" Circuit.  Fechner.  
    10.10 Great Belt Transit in convoy to "Red 27".  
    13.45 - 14.20   Assistance to "U-629" due to the buoy line of a route marker in the propeller.  
    18.30   Rösnäs abeam.  
    20.15 "Red 27" Escort change at "Red 27".  Further escort by 2 boats of the 9. V.P. Flottille via point route west of Anholt-Læsø, Black 23 and 26 to Kristiansand South.  
      W 1-2, occasional rain  
                                              
    19.07.42 Kattegat    
      N 2-3, overcast    
    04.00 Misty, occasional rain Anholt abeam.  
    07.30   Frederikshaven abeam, "U-629" released from convoy.  
    10.22 Weather clears up, Vis. better    
           
           
           
 
 
- 2 -
 
           
           
           
           
    19.07.42 Kattegat    
    10.22   Lighthouse abeam.  Transit through the Skagerrak to Kristiansand South on Route Black.  
    22.30 N 1, clear sky Made fast Kristiansand Langmannsholm at the Silo Wharf, afterwards water loading from bunker vessel.  
                                              
    20.07.42 Kristiansand    
    06.00 SW 1-2, clear sky Departed Kristiansand.  
    06.30   Test dive within the Vestregapet archipelago.  "U-210" grounded lightly while diving, damaged at the forestem, remained capable of continuing transit.  
    08.00 AN 3617    
      SW 1-2, clear sky    
    08.22   Ballastkjär abeam.  
    10.10   Lindesnes Lighthouse abeam.  
    12.00 Day's run 52 nm Lister Lighthouse abeam.  
      AN 3524    
      NWbyW 3-4, Sea 3, overcast    
    16.00 AN 3274 Own heavy air reconnaissance at the level of Stavanger.  
      W 3, Sea 2, rain showers    
    17.42   At Point "X 16" released from convoy with "U-210".  Course 290°, GF to get out of the 30-nm zone quickly.  
    20.00 AN 2977    
    20.35   Came to course 0°.  
    20.30   Crash dive for training.  Deep dive to A +70 meters.  Boat holds tight, no special issues.  
    21.50   Surfaced.  Continued transit, diesel-electric.  
    24.00 AN 2866    
                                              
    21.07.42 North Sea    
    04.00 AN 2838    
      NW 4, Sea 4, overcast, misty    
    08.00 AN 2392 lower-left An over deck hatch aft of the 3.7 cm  
           
Sun and Moon Data 19.07.42
Sun and Moon Data 20.07.42
Sun and Moon Data 21.07.42
 
- 3 -
 
           
           
           
    continued      
    21.07.42 North Sea    
        was ripped off and went overboard from a breaker.  
    12.00 Day's run 180 nm    
      AN 2334 lower-left    
      Abating wind, clearing cloud deck, occasionally the sun breaks through    
    16.00 AF 8784 lower-center Radio Message Short Signal:  My position is AF 87.    U-164.
      NW 2, Sea 2, overcast    
    19.23 - 19.50   Crash dive for training, boat was balanced.  
    20.00 AF 8743    
      Weather remains unchanged    
    20.47   Aircraft bearing 30°T.  Crash dive! - because the aircraft was not positively recognized as German.  
    21.02   Surfaced.  
    24.00 AF 8716 center-left    
                                              
    22.07.42      
    04.00 WNW 2, Sea 2-3, cloudy, intermittent rain showers Came to course 321°.  
    04.35   Switched to Ireland Circuit.  
    08.00 AF 7639 center    
    09.30 AF 7635 center Drifting English mine 800 meters away.  
    10.55 AF 7386 upper-left Drifting English mine 600 meters away.  
    12.00 Day's run 142 nm    
      AF 7397    
    17.00   Came to course 304°.  
    18.45 AF 4947 center-left Drifting English mine to starboard.  
    20.00 AF 4866 lower-right Crash dive for training, depth A -20 meters.  
    21.10   Surfaced.  
    21.25 AF 4865 center Drifting English mine to starboard.  
                                              
    23.07.42 North Sea    
    00.00 NW 3-4, Sea 2-3, overcast, Vis. moderate    
           
           
Sun and Moon Data 21.07.42
Sun and Moon Data 22.07.42
Sun and Moon Data 23.07.42
 
- 4 -
 
           
           
           
    continued      
    23.07.42 North Sea    
    00.00 NW 3-4, Sea 2-3, overcast, Vis. moderate, intermittent rain showers    
    04.00 AF 4812 upper-right    
      NW 4, Sea 3, isolated rain showers    
    05.20   Drifting English mine 1000 meters away.  
    07.20   Drifting English mine 600-800 meters away.  
    07.00   Radio Message 1700/125:  From Control:  Rudloff reports by Short Signal convoy up to 5 steamers 8812, westerly course.  
        Does not come in question for us, too far away.  
    08.00 AF 4492    
    12.00 Day's run 210 nm    
      AF 4455 Came to course 248°.  
      NW 4, Sea 3-4    
    16.00 AF 4447    
    20.00 AE 6688    
    24.00 AE 6912    
                                              
    24.07.42 North Sea    
    04.00 AE 6853    
    08.00 AE 6846    
    09.45   Crash dive for training, depth A -20 meters.  
    10.20   Surfaced.  
    11.10   Came to course 230°.  
    11.32   Drifting English mine to starboard.  
    12.00 Day's run 175 nm    
      AE 6785    
    16.00 AE 9121 Drifting English mine to starboard.  
    16.30 AE 9141 Drifting English mine to starboard.  
    19.45 AE 8365    
    20.00 AE 9117    
    22.35 AE 9117 Drifting English mine to starboard.  
                                              
           
           
Sun and Moon Data 23.07.42
Sun and Moon Data 24.07.42
 
- 5 -
 
           
           
           
           
    25.07.42 North Atlantic    
    00.00 AE 8383    
      NW 1, light Swell, horizon somewhat hazy    
    00.00 - 04.00 AE 8617 Came to HF.  Went to diesel-electric drive.  
    08.00 AE 8559    
    09.32   Aircraft ahead to port, course SE.  Crash dive.  Depth A -20 meters, remained unseen.  
    09.55   Surfaced.  
    10.09   Aircraft, course south.  Crash dive A -40 meters.  
    11.51   Surfaced.  
    12.00 Day's run 192 nm    
      AE 8581    
    14.00 AE 8578 Smoke feather and masthead to starboard.  Apparently 1 patrol vessel and 1 steamer.  
    14.51   It is three vessels perfectly recognized as patrol vessels.  The first vessel was about 8000 meters away, course 310°.  I ran off at high speed, because I had been sighted, because the nearest vessel turned towards me.  Smokestack and bridge were clearly recognized.  
    14.56   Crash dive before aircraft, depth A -20 meters.  I turned to a southerly course submerged, later to 233°.  The sounds were continually stronger.  I went to depth A +40 meters.  
    15.40   The sounds were fainter and stopped completely.  
    16.05 AE 8783 Went to periscope depth.  All around sweep:  1 patrol vessel bearing 310°T, 4000 meters away.  
    16.10   Came to course 180°.  Depth A -45 meters.  
    17.30   Came to course 230°, moved off submerged.  
    19.00   Surfaced, ran off at GF.  
        Directly astern still one smoke cloud from a patrol vessel.  
    19.57   Came to 2 x HF.  
    20.00 AE 8753    
    20.32   Flying boat bearing 90°T, course east.  
           
           
Sun and Moon Data 25.07.42
 
- 6 -
 
           
           
           
    continued      
    25.07.42 North Atlantic    
    20.57   Aircraft astern, turns slowly towards us.  Crash dive, depth A -20 meters.  
    22.05 AE 8757 Surfaced.  
    22.07   2 flying boats bearing 250°T and 180°T. 1 aircraft turns towards us, Crash dive, depth A -40 meters.  
                                              
    26.07.42 North Atlantic    
    00.00 AE 8773 Surfaced, course 230°, 2 x HF.  
      W 3, Sea 2, overcast, isolated rain showers Continued running, to get out of the heavy air surveillance area.  
    02.00   Course 240°.  
    04.00 AL 3137    
    07.30   Multi-engine land-based aircraft bearing 245°T.  Comes out of the low hanging clouds towards us.  Crash dive.  While diving 5 bombs fall.  Severe concussion.  Damage:  crack in low pressure air distributor in the control room, port diesel clutch very noisy, echolot [depth sounder] and two daughter gyro compasses failed, the remaining damage was minor, and can easily be repaired.  Went to depth A -20 meters.  
    10.47   Surfaced.  
    12.00 Day's run  190 nm    
      AL 2466    
    12.15 W 1-2, Sea 1, clear sky, individual Cumulus clouds, sunshine Crash dive for multi-engined land-based aircraft.  At depth A -50 meters the aircraft throws 3 bombs.  No new damage.  Port E-motor cannot be run submerged due to strong grinding of the diesel clutch.  
    12.20   Submerged began on course 250°, then steered 270°.  
    13.00   From 13.00 hours far distant repeated depth charges are heard.  
    15.35 AL 3312    
      W 1-2, Sea 1, lightly cloudy    
           
           
           
Sun and Moon Data 25.07.42
Sun and Moon Data 26.07.42
 
- 7 -
 
           
           
           
    continued      
    26.07.42 North Atlantic    
    16.35   Crash dive for aircraft astern to port, depth A -20 meters.  
    18.30 AL 3315 Surfaced.  
    18.58   Aircraft ahead to port.  Crash dive, depth A -40 meters.  
    24.00 AL 2424 Surfaced.  
                                              
    27.07.42      
    00.20 W 1-2, Sea 0, overcast, around evening rain showers, misty Came to course 220°.  
    00.45   Ahead to port a drifting empty raft.  
    02.55 Wind freshening, SW 2-3, Sea 2, 1011 mb Radio Message 2131/26/119:  Fechner, Lemke head for DD 90.  
    01.00 - 06.00   Ran at GF to get out of the air danger area.  
    04.00 AL 2389    
    08.00 AL 2574    
    11.05   Radio Message 1010/27/129:  Fechner, Lemke report position.  
    11.08   Radio Message Short Signal:  My position is AL 18.    U-164.
    12.00 AL 1855 Came to course 231°, to head for DD 90 on the Great Circle.  
      Day's run 190 nm  
    16.00 AL 1872    
    20.00 AL 1934    
    24.00 AL 1951    
                                              
    28.07.42 SW 2-3, Sea 2, overcast    
    04.00 AL 1971    
    07.20   Came to course 229°.  
    08.00 AK 6331    
    12.00 Day's run  168 nm    
      AK 6343    
    16.00 AK 6292    
    20.00 AK 6522    
      W 2-3, Sea 2-3, few clouds, sunshine, around evening overcast rain showers, 1013 mb    
    24.00 AK 6541                                       
         
           
Sun and Moon Data 26.07.42
Sun and Moon Data 27.07.42
Sun and Moon Data 28.07.42
 
- 8 -
 
           
           
           
           
    29.07.42 North Atlantic    
      WNW-SW 3-4, Sea 2, clear sky, around evening heavy overcast, Sea State in light Swell, 1021 mb    
    04.00 AK 6454    
    08.00 AK 6713    
    12.00 Day's run 158 nm    
      AK 5962    
    16.00 AK 5981    
    17.10   Crash dive for training.  Depth A -20 meters.  Test dive.  
    18.20   Surfaced.  
    20.00 AK 8311    
    23.09   Radio Message  Short Signal from Lemke:  Convoy AK 5982.  
    23.30   Came to opposite course, port diesel made operable by using the spare cooling water pump because its cooling water pump was out of service.  
    24.00 AK 8229 Radio Message  Short Signal:  Position AK 8229, request bearing signals from contact keeper.    U-164.  
                                              
    30.07.42      
    00.35 SW 1-2, Sea 1, few clouds, later overcast, hazy horizon, 1021 mb Came to course 58°.  
    01.45   Came to course 35°.  
    01.50   Port diesel again fully operable.  
        Took bearings on the contact keeper in 0°T, at great Volume.  
    01.58   Came to course 0°.  
    02.00   To Action stations!  Torpedo tubes prepared for surface firing except for outer tube doors.  
    02.03   Shadow in sight ahead, it is the convoy.  About 20 vessels were counted.  The steamers proceeded in several columns next to one another.  3 or 4 vessels suddenly set running lights.  The convoy turns to port to course south.  I am positioned against the bright horizon and the convoy bears 60°T, range 4000-5000 meters.  I do not consider another  
           
           
           
Sun and Moon Data 29.07.42
Sun and Moon Data 30.07.42
 
- 9 -
 
           
           
           
    continued      
    30.07.42 North Atlantic approach advisable, since the flank escort must catch me.  I turn to course 240° for a stern shot.  
   

02.24

02.28

  Fan from tube 5 and 6 on large tanker, target angle 70°, speed 8 knots.  No effect observed.  Moved off slowly because an escort, apparently a destroyer, comes closer.  Shadows were larger, moved off on course 270°.  The gyrocompass input [to the fire control system] failed while evading before the destroyer, orientation is hardly possible with strong turning at high speed.  
    02.45   Switched to Greenland Circuit.  
    03.27   Came to course 220° to pursue the convoy.  
    03.36   Radio Message  Short Signal:  Convoy 8234.    U-164.  
    03.50   Shadow of a U-boat to starboard on the same course with us.  
    04.00 AK 8234 Came to course 200°.  Shadow out of sight.  
    04.21   Came to course 230°.  
    04.30   Radio Message  0430/30/291:  Was forced away, have lost contact.  Last position of the convoy AK 8234, course southwest, from Fechner.  
    08.00 AK 8271    
    08.46   Came to course 180°.  
    09.37   Came to course 300°.  
    10.42   Came to course 140°.        Search courses.  
    11.32   Came to course 320°.  
    12.00 AK 8197 Came to course 230°.  
      Day's run 212 nm    
    13.19   Smoke cloud in sight bearing 136°T.  Turned towards and closed.  
    13.55   Convoy is clearly recognized by numerous smoke clouds and mastheads of the flank escort.  
    14.10 AK 8438 Radio Message  Short Signal: Convoy AK 8438.    U-164.  
    14.35   Came to course 10° and angled away because the flank escort is very close.  
           
           
Sun and Moon Data 30.07.42
 
- 10 -
 
           
           
           
    continued      
    30.07.42 North Atlantic Afterwards ran along again.  
    15.21 AK 8464 Radio Message  Short Signal 1521/30:  Convoy over 15 steamers 8564, speed 8-10 knots, course 230°.    U-164.  
    15.47   An escort vessel with one mast comes up from astern and holds on us, emits a strong smoke cloud, range continuously decreases.  Searchlight stand and upper edge of the bridge are recognized.  
    15.53   Crash dive!  Went to depth A +30 meters.  
   

16.07

1645

 

[There is an illegible handwritten entry here]

Destroyer throws 3 depth charges, however which are not very close.  In the listening gear no propeller sounds are detected, only own sounds are heard.  On closer examination is was determined that the gear was not in service from the aircraft bombs on 26 July.  
    16.45   16.45 hours went to periscope depth.  2 smokestack destroyer  with light gray paint lies stopped directly ahead, distance 1500 - 1000 meters, bow left 90°.  Appearance:  2 smokestacks of the same height and width, disproportionate number of guns.  
        Went deep, turned to course 90°, gyrocompass again in use because magnetic compass is too inexact, moved off.  
    19.45   Destroyer throws 1 depth charge.  
    20.10   Destroyer throws 4 depth charges not too far away so he still doesn't have us.  I run off with both motors LF, depth A -30 meters.  
    21.10   Destroyer throws one depth charge.  
    21.30   3 depth charges further away.  
    21.55   Went to periscope depth.  Because the swell is quite long and therefore the horizon is not clearly distinguished, the horizon cannot be accurately examined.  Nothing is seen of the destroyer.  
    22.12   Because it is bright as day, I decide to move off further.  
    23.08   Went to periscope depth.  
           
           
           
           
Sun and Moon Data 30.07.42
 
- 11 -
 
           
           
           
    continued      
    30.07.42 North Atlantic    
    23.17   Surfaced.  
    23.20   Came to course 220°, HF.  At the moment cannot run because the engine cooling water pump and clutch must be overhauled.  
    23.21 AK 8436 Radio Message 2321/30/222:  Forced to submerged for a long time.  Have lost contact 16.00 hours square 8467, position 8436, in pursuit.    Fechner.  
    24.00 AK 8435    
                                              
    31.07.42 Atlantic    
      W 1-2, Sea 1, overcast, occasional rain showers and low visibility, 1021.5 mb    
    04.00 AK 8484    
    04.46   Radio Message:  On request to report weather 0446/31/235:  W 2, Sea 1, overcast, 1021 mb, Vis. good.  Naval square 7962.  Iceland Passage 25/26 July 3 patrol vessels, very heavy air.  2 times aircraft bombs.    Fechner.  
    08.00 AK 8741    
    08.50   Went to 2 x HF.  
    12.00 Day's run 210 nm    
      BD 1229    
    16.00 BD 1515    
    17.17   Turned away to starboard for two escort vessels, which came out of the haze from the port side.  Course west.  Masts with upper edge of the bridge and smokestack were recognized.  It was 1 destroyer and a corvette.  Both vessels turn towards us.  
    17.19   Crash dive depth A -20 meters, moved off submerged to the north.  In the listening gear no propeller sounds are distinguished.  
    17.50   Went to periscope depth.  All around sweep is clear.  Afterwards to balance the boat again went to depth A -60 meters.  
           
           
Sun and Moon Data 30.07.42
Sun and Moon Data 31.07.42
 
- 12 -
 
           
           
           
    continued      
    31.07.42 Atlantic    
    18.40   Surfaced. Nothing more is seen of the vessels.  Port diesel is out of service (cooling water pump).  
    18.50   Course 210°, HF (starboard diesel).  
    20.30   Radio Message  2030/31/264:  17.15 hours naval square 1463 2 escort vessels course west, contact lost because only 1 diesel in operation.  
    20.00 BD 1466    
    20.55   Radio Message  2055/31/258:  Form patrol line from naval square BC 5395 to 6979.  
                                              
    01.08.42      
    00.00 The barometer falls, wind shifts up to S 7, the Seas were larger up to 6, isolated rain showers begin, later continuous rain, fog, Vis. sometimes only 200 meters, 1017 mb From 00.00 hours after both diesels are in service must reduce to HF due to high seas.  
      I cannot reach the ordered position at this speed.  
      Reichenbach and Steinhoff have reported delaying their arrival by Radio Message.  Therefore I do not because I don't consider it absolutely necessary.  
      BD 1489  
    04.00 BD 1749    
    08.00 BD 4114    
    12.00 Day's run 205 nm    
      BD 6366    
    13.30   Test dive.  
    16.00 BC 6394    
    20.00 BC 6627    
    21.07   Radio Message  2107/1/201:  16.30 hours one destroyer naval square BC 6584, westerly course, forced to submerge.  
                                                                 Steinhoff.  
    23.22   Radio Message  2157/1/204:  1)  Group Pirat break off convoy.  2)  Thurmann, Vogel head for naval square DD 90. Supply on return transit from Wolfbauer.  
        3)  Schwandtke, Reichenbach, Steinhoff, Fechner  
           
           
Sun and Moon Data 31.07.42
Sun and Moon Data 01.08.42
 
- 13 -
 
           
           
           
    continued      
    01.08.42 Atlantic naval square DO 50.  4)  Lemke, Mengersen, Hackländer, Topp, Rodler, Bopst, U-704, Kettner on 6 August 08.00 hours be in patrol line from square WD 1411 to square TD 5465.  Boats form new group "Steinbrink".  
    24.00 BC 6648 Came to course 223°.  Headed for new position.  Transit speed diesel-electric.  
                                              
    02.08.42 Wind shifts over SW to WNW and eases to strength 2.  Sea slowly abating to strength 3, barometer rising, from 1005 to 1010 mb    
    04.00 BC 6596    
    08.00 BC 6834    
    09.20   Radio Message Radio Signal  0910/2/220:  Enemy convoy in sight BC 5955, course 240°.    U-552.  
    10.12   Radio Message  1012/2/221:  All boats of the former group "Wolf" and "Pirat: operate on convoy.  Go!  
    10.30   Came to course 250°, both diesels ahead 2 x HF.  More is not possible in the seas.  
    12.00 Day's run 150 nm Topp and "U-704" give continual contact keeping reports at the convoy.  
      BC 6854  
    16.00 BC 6791 The earliest we can be at the convoy is in the morning of 3 August.  
    20.00 BC 8335 Radio Message from Topp:  
        2056/248:  Convoy BC 8213.  With attack zigzagged to 270°.  
    21.38   Radio Message from Topp 2138/2/252:  Convoy square 5877, westerly course, 8 knots.  
    24.00 BC 8344 Came to course 280°, assuming that the convoy will continue to steer a westerly course.  
                                              
           
           
Sun and Moon Data 01.08.42
Sun and Moon Data 02.08.42
 
- 14 -
 
           
           
           
           
    03.08.42 Atlantic    
      SW 1, Sea 1, changing heavy rain showers and fog, Vis. sometimes very bad, 1010 falling    
    00.05 - 00.28   Test dive.  While diving several depth charges heard in the distance.  
    02.03   Came to GF.  
    04.00 BC 8252    
    08.00 BC 8126    
    12.00 Day's run 290 nm Radio Message 1101/3/291:  Operation on Topp-convoy broken off, Thurmann, Vogel, Fechner, Steinhoff, Schwandtke, Reichenbach objective as ordered in Radio Message from 1 August Paragraph 2 and 3.  
      BC 8111  
    13.45   Came to course 180°, diesel-electric.  
    16.00 BC 7361    
      East 0, Sea 0, cloudless sky, horizon somewhat hazy    
    20.00 BC 7367    
    24.00 BC 7653    
                                              
    04.08.42 SSE 1-2, Sea 1, changing heavy fog, Vis. sometimes only 200 meters, from 04.00 hours continual visibility improvement, afterwards beautiful weather, 1011 mb    
    04.00 BC 7689    
    08.00 BC 7959    
    10.25 - 11.15   Test dive.  
    12.00 Day's run 182 nm    
      CC 3222 Came to course 218°.  
    16.00 CC 3245    
    20.00 CC 3189    
    22.22   Came to course 215°.  
    24.00 CC 3443    
                                              
           
           
Sun and Moon Data 03.08.42
Sun and Moon Data 04.08.42
 
- 15 -
 
           
           
           
           
    05.08.42 Atlantic    
      WSW 2, Sea 1, individual clouds, Vis. good, 1019 mb    
    04.00 CC 3471    
    08.00 CC 2934    
    12.00 CC 2957    
      Day's run 180 nm    
    16.00 CC 5315    
    15.30   Came to course 216°.  
    20.00 CC 5292    
    24.00 CC 5523    
                                              
    06.08.42 SW 1-2, Sea 1, heavily cloudy, thunderstorms and light rain showers, from 15.00 hours clear sky, Vis. good, 1018 mb    
    04.00 CC 5552    
    08.00 CC 5572    
    12.00 Day's run 155 nm    
      CC 5735    
    12.45 - 13.05   Test dive.  
    16.00 CC 5756    
    20.00 CC 5784    
      SW 2, thunderstorms and rain showers until 23.00 hours    
    24.00 CC 8113    
                                              
    07.08.42      
    04.00 CC 7366    
    08.00 CC 7394    
      SW 4, Sea 3, clear sky, Vis. good, 1010 mb    
    12.00 Day's run 145 nm    
      CC 7628    
           
           
           
Sun and Moon Data 05.08.42
Sun and Moon Data 06.08.42
Sun and Moon Data 07.08.42
 
- 16 -
 
           
           
           
    continued      
    07.08.42 Atlantic    
    16.00 CC 7649    
    18.00   Radio Message 1743/7/2643:  Fechner, Reichenbach head for naval square DD 9455, there supply from Wolfbauer anticipated.  Report arrival at dawn as soon as possible by Short Signal.  
    20.00 CC 7677    
    22.00   Radio Message Short Signal:  Will be at anticipated meeting point on the 11th of the month.  My position is CC 7832.  
    24.00 CC 7839    
                                              
    08..08.42 SW 2, light Swell, nearly cloudless, Vis. good, very warm, 1022 mb    
    04.00 CC 7859    
    08.00 DE 1121    
    12.00 Day's run 142 nm    
      DE 1146    
    12.50 - 13.15   Test dive.  
    16.00 DE 1414    
    20.00 DD 3665    
    24.00 DD 3957    
                                              
           
           
           
           
           
           
Sun and Moon Data 07.08.42
Sun and Moon Data 08.08.42
 
- 17 -
 
           
           
           
           
    09.08.42 Atlantic    
      S 1-2, Sea 1, Swell, sky cloudy at times rain showers, Vis. moderate, from 04.00 hours dissipating cloud deck, then clear sky, Vis. good, all day very warm, 1026 mb    
    04.00 DD 3957    
    08.00 DD 6315    
    12.00 DD 6293    
      Day's run 184 nm    
    12.30   Radio Message 1136/9/241:  1)  New meeting point Wolfbauer, Fechner, Reichenbach, Schendel is naval square DO 3357, 12 August from 16.00 hours.  No bearing signals.  Boats arriving later report only if meeting might take place after evening twilight 13 August.  2)  (concerns only Wolfbauer).  
    16.00 DD 6564 Transit speed.  
    22.00   Course 218° to new meeting point.  
    24.00 BD 6849    
                                              
    10.08.42 SE, temporarily in Trade Wind, Swell, lightly cloudy, Vis. good, very warm, 1025 mb Transit speed.  
    04.00 DD 9133    
    08.00 DD 9156    
    12.00 DD 9184    
      Day's run 207 nm    
    16.00 DD 9415    
    20.00 DD 8669    
    23.00 - 23.30   Test dive.  
    24.00 DD 8697    
                                              
           
           
Sun and Moon Data 09.08.42
Sun and Moon Data 10.08.42
 
- 18 -
 
           
           
           
           
    11.08.42 Atlantic    
      S 2-3, Sea 1-2, gray morning rain showers and heavy cloudiness, later cloudless, Vis. good, very hot, 1023    
    04.00 DD 8955 Transit speed.  
    08.00 DD 8978    
    12.00 DO 3353    
      Day's run 168 nm    
    12.25   "U-463" comes in sight.  
    12.42 - 13.30   Established the towing connection, does not go quite smoothly because the yellow buoy slipped out by accident.  
    13.50   Fuel oil transfer begins.  Lubricating oil hose bursts and must be patched.  During the fuel oil transfer provisions for 8 days except for meat and potatoes taken over.  In the course of the maneuvers Mtr.Gfr. Hugenschmidt strikes both shins seriously.  He requires medical help. In the judgment of the Doctor, the injured man can remain on board.  
    18.07   Fueling ended, hose connection released.  31 tons of fuel oil and 1600 liters of lubricating oil were taken over.  
    20.00 DO 3357    
    23.00 - 23.50   Crash dive for training, balanced the boat.  
    24.00 DO 3534    
                                              
    12.08.42 E 1, Sea 0, cloudless sky, Vis. good, 1023 mb    
    04.00 DO 3551    
    08.00 DO 3574    
           
           
           
Sun and Moon Data 11.08.42
Sun and Moon Data 12.08.42
 
- 19 -
 
           
           
           
    continued      
    12.08.42 Atlantic    
    11.47 SE 3, Sea 2, sky overcast, heavy rain showers, 1022 mb Radio Message 1059/12/244:  Fechner, Reichenbach after supply head for square HH 31 [ED11].  Further orders follow.  
    12.00 DO 3751    
      Day's run 156 nm    
    16.00 DO 2996 Transit speed.  
    20.00 DO 5329    
    22.46 - 23.05   Test dive.  
    23.05 - 23.15   Stopped to tighten the stern tube packing.  
    24.00 DO 5372    
                                              
    13.08.42 E 3, Sea 3-4, heavily cloudy, Vis. bad, thunderstorms and heavy rain showers, 1020 mb    
    04.00 DO 5535 Transit speed.  
    08.00 DO 5582    
    12.00 DO 5814    
      Day's run 185 nm    
    16.00 DO 5762    
    20.00 DO 5785    
    24.00 DO 8118    
                                              
    14.08.42 SE 4, Sea 4, overcast, rain showers, around morning clearing, Vis. good, 1018 mb    
    04.00 DO 7392    
    08.00 DO 7625    
    12.00 DO 7648    
      Day's run 173 nm    
    12.05 - 12.40   Test dive.  
    16.00 DO 7831    
    20.00 DO 7854    
    21.00   The coast of Puerto Rico comes in sight ahead.  
           
           
           
Sun and Moon Data 12.08.42
Sun and Moon Data 13.08.42
Sun and Moon Data 14.08.42
 
- 20 -
 
           
           
           
    continued      
    14.08.42 Atlantic    
    22.05   Aircraft bearing 220°T, course for Puerto Rico.  Crash dive!  Depth A -40 meters.  I decide to proceed submerged until the beginning of darkness.  
    24.00 DO 7874    
                                              
    15.08.42 NE 3, Sea 2, Vis. good, lightly overcast, 1014 mb    
    01.35   Surfaced.  
    01.45   Both diesels ahead 2 x HF.   
    01.50   In the direction of Puerto Rico there are several searchlights seen.  Apparently searchlight training.  
    04.00 ED 1161 Mona Island was passed on the Haiti side.  
    08.00 ED 1427 Lighthouse on Mona burns as in peacetime.  
    11.45   Transit speed diesel-electric.  
    12.00 ED 1727    
      Day's run 233 nm    
    16.00 ED 1748    
    20.00 EC 3958    
    22.02   Radio Message  2202/15/249:  1) Mona light air.  Lighthouse burns.  2)  My position naval square EC 3957.  No traffic.  157 cbm,  Request orders.  3)  E 3, Sea 2, 1015 mb, overcast, Vis. good.    Fechner.  
    24.00 EC 3947    
                                              
    16.08.42 SE 2-3, Sea 2, sky overcast, few low clouds, clear horizon, Vis. good, very warm, 1015 mb    
    00.00   Radio Message  2345/15/251:  1)  Fechner occupy area within a radius of 150 nm around EC 9280.  Focal point is 9280 [Aruba] and 9620 [Curaçao].  2)  Reichenbach head for square 96.  
    00.45 - 01.05   Test dive.  
           
           
Sun and Moon Data 14.08.42
Sun and Moon Data 15.08.42
Sun and Moon Data 16.08.42
 
- 21 -
 
           
           
           
    continued      
    16.08.42 Caribbean Sea    
    04.00 EC 6321    
    08.00 EC 6347    
    12.00 EC 6611    
      Day's run 173 nm Transit speed.  
    16.00 EC 6647    
    20.00 EC 6911    
    24.00 EC 6944    
                                              
    17.08.42 E 4-5, Sea 4, few clouds, Vis. good, very warm, 1015 mb    
    01.05 - 01.35   Test dive.  
    04.00 EC 9233    
    08.00 EC 9261    
    11.50   Aruba comes in sight ahead to starboard.  Distance 6 nm.  
    12.00 EC 9282 Course 310°.  
      Day's run 152 nm    
   

13.00

 

16.00

20.00

 

 

EC 9249

EC 9248

Dived, because distance to Aruba is slight and danger of being sighted exists.  Rounded the NW corner of the island and approached the Manchebo Headland to about 6 nm.  Manchebo oil terminal and Orangenstad are easily distinguished.  Two small oil tankers can be seen in Manchebo harbor or roadstead.  Because I do not know if off the harbor U-boat nets etc. are to be expected, and against that the NW-current is very strong, I refrain from a further approach to the coast.  
    24.00 EC 9245    
                                              
    18.08.42 Trade Wind 3-4, Sea 3, isolated clouds, somewhat hazy, 1015 mb    
    01.45   Surfaced.  At transit speed ran to the NW edge of Curacao.  
           
           
Sun and Moon Data 16.08.42
Sun and Moon Data 17.08.42
Sun and Moon Data 18.08.42
 
- 22 -
 
           
           
           
    continued      
    18.08.42 Caribbean Sea    
    04.00 EC 9241    
    08.00 EC 9255    
    11.15   Curacao in sight.  
    12.00 EC 9553    
      Day's run 129 nm    
    12.40   Course 280° to Niederwald Bank.  
    14.20   Paraguana Peninsula and Aruba come in sight.  
    14.33   Course 100°.  I intend to move back and forth in position between Aruba and Curacao.  
    15.03   Aircraft astern to starboard.  Crash dive.  
    16.14   Surfaced.  
    16.17   Aircraft in sight on east-west course, range 3000 meters.  Additionally a small tanker, range 10000 meters, target angle 70°, course 110°.  Crash dive.  
        At periscope depth the steamer is no longer seen.  Because it must be assumed that the tanker proceeds with the aircraft, I remained submerged.  
    18.14   New tanker with two masts and one smokestack recognized.  Range 10000 meters.  Target angle 70-80°.  I search submerged to arrive at the course line Cape San Roman - Willemstad.  
    20.00 EC 9614 Through the periscope no aircraft or tankers are distinguished.  Curaco (NW-part) with St. Cristoffel and Tafel mountains are easily distinguished.  
        I remain submerged so as not to be recognized by the air surveillance.  
    24.00 EC 9533    
                                              
    19.08.42 Trade Wind 3-4, Sea 3, quite cloudy, low hanging clouds, clear horizon, 1014 mb    
    01.25   Surfaced shortly after sunset.  
    02.00   Course 285° for Aruba.  
    03.05   In the direction of Aruba a white star signal.  
    03.28   Course 310°.  Directly ahead a white light is seen for a short time.  
           
Sun and Moon Data 18.08.42
Sun and Moon Data 19.08.42
 
- 23 -
 
           
           
           
    continued      
    19.08.42 Caribbean Sea    
    03.42   Reached the SE tip of Aruba.  One can clearly make out the Colorado Lighthouse and the reef off San Nicolas Bay.  Details in the harbor are not distinguished.  For a short time lights illuminate in several places.  
    04.00 EC 9285 Began transit to Cape San Roman  
    07.30   Lighthouse at Cape San Roman in sight, also faint.  No traffic is found between the Cape and Aruba  
    08.00 EC 9513 Began transit to square 9536.  
    12.00 BC 9536    
      Day's run 118 nm    
    12.33   Dived, because with the low hanging clouds surprise by aircraft is to be expected.  Went to periscope depth every half hour.  Except for Curacao nothing is distinguished.  
    16.00 EC 9616    
    18.20   Patrol vessel (fishing trawler) in sight bearing 100°T.  Range 5000 meters, course parallel to the coast.  
    20.00 EC 9615 Patrol vessel no longer distinguished.  
    24.00 EC 9536 Traffic can not be found by sound bearings or visually.  
                                              
    20.08.42 Trade Wind 3, Sea 3, cloudy, despite this good visibility and clear sky, 1013 mb    
    01.27   Surfaced.  
    04.00 EC 9522    
    05.02   Cape San Roman Lighthouse in sight.  
    05.12   Macolla Lighthouse in sight.  
        No traffic determined.  
    06.55   Came to course for Aruba.  
           
           
           
Sun and Moon Data 19.08.42
Sun and Moon Data 20.08.42
 
- 24 -
 
           
           
           
    continued      
    20.08.42 Caribbean Sea    
    08.40   Colorado Lighthouse abeam to port, distance 1.5 nm.  On the southeast coast of Aruba a few lights are seen briefly.  
    09.38   Came to 2 x HF, course 40°.  I intend to move off and head for square 8388, to detect traffic there.  
    12.00 EC 9261    
      Day's run 124 nm    
    14.00   Radio Message  1457/19/255:  To Fechner, Reichenbach  
        Suhren convoy presumably proceeds via EC 20 and 10, either via DM 64 or DL 68 to DM 27.  All naval squares.  
        This Radio Message was first received on 20 August, because on 19 August we were submerged.  
        Came to course 355°, to head for EC 61.  
    16.00 EC 6876    
    20.00 EC 6841    
    21.30   Radio Message  2103/20/101/287:  3) Fechner report situation.  
    24.00 EC 6497    
                                              
    21.08.42 E 3-4, Sea 3, moonshine, horizon somewhat overcast and hazy.  Visibility quite good, 1014 mb    
    00.10   Radio Message  0010/21/300:  
        1)  17 - 19 August at main harbor.  17 Orangestad two tankers in harbor.  18 October all day traffic medium-size tanker off Cape San Roman for 9620 and suspect 9280.  On 19 August in 9530 nothing except a patrol vessel, nights nothing.  
        2)  Lighthouses Roman, Macolla burn faintly.  Dived by day due to heavy air.  
        3)  Operating on Suhren-convoy to 61.  
        4)  Position 6497.  21 torpedoes.  140 cbm.  E 3, Sea 3, 1012 mb, +31°C, Vis. good.  All  
           
           
Sun and Moon Data 20.08.42
Sun and Moon Data 21.08.42
 
- 25 -
 
           
           
           
    continued      
    21.08.42 Caribbean Sea naval square Emil Caesar.  
        5)  Sounder and radio direction finder out of service.  
        6)  Am missing Serial Nos.:  219 from 15 August, 272, 85 from 16 August, 297-99 and 201-03 from 17 August.   
                                                                       Fechner.  
    00.10   Steamer in sight abeam to starboard.  Range 9 nm, course 320°.  Began maneuver ahead.  
    01.15   Both diesels GF, Main clutch of the starboard shaft slips.  Continued at 2 x HF.  
    02.08   Enemy bears 328°T.  
    02.31        "         "    290°T.  Afterwards followed the enemy in the wake.  The steamer (motor ship) after sunset set steaming lights and illumination for neutral markings.  The steamer continually gets further from us.  
    05.24   Starboard diesel stopped to check the clutch.  Steamer now disappears quickly over the horizon.  
    03.58   Starboard shaft again in service.  Came to GF.  
    04.00 EC 6424    
    05.32   Came to transit speed diesel-electric, because the steamer no longer comes in sight.  
    05.34   Came to course 135° and continued on changing course back and forth in position.  
    08.00 EC 6413    
    12.00 EC 5392    
      Day's run 223 nm    
    16.00 EC 5363 Transit speed.  
    20.00 EC 6116    
    24.00 EC 6173    
                                              
    22.08.42 E 3-4, Sea 3-4, few clouds, sunshine, Vis. good, clear horizon, 1013 mb    
           
           
           
Sun and Moon Data 25.08.42
Sun and Moon Data 26.08.42
Sun and Moon Data 27.08.42
 
- 26 -
 
           
           
           
    continued      
    22.08.42 Caribbean Sea    
    01.03 - 01.38   Test dive.  
    04.00 EC 6422    
    08.00 EC 6462    
    12.00 EC 6422    
      Day's run 158 nm The entire day back and forth in position on changing courses.  
    16.00 EC 6175    
    20.00 EC 6142    
    24.00 EC 6115    
                                              
    23.08.42 E 5, Sea 5-6, overcast, sunshine, Vis. quite good, 1013 mb    
    00.40 - 01.05   Test dive.  
    04.00 EC 5368    
    08.00 EC 5635    
    12.00 EC 5692    
      Day's run 149 nm    
    16.00 EC 6447    
    20.00 EC 6443    
    21.22   Radio Message  2122/23/238:  From Fechner:  On 21 August motor ship square 6491, course 315°, 17 knots, set lights as neutral.  Square 64 and 61 otherwise nothing.  Request orders.  Square 6421 Trade Wind 5, Sea 6, 1012 mb, overcast.  
    24.00 EC 6423    
                                              
    24.08.42 E 5, Sea 4-5, overcast, Vis. medium, 1013 mb    
    04.00 EC 6185    
    08.00 EC 6153    
    10.00   Radio Message 0854/24/217:  1)  Fechner free to maneuver via EC 14 to DL 68.  2)  (for us not important).  
    12.00 EC 3788    
      Day's run 125 nm    
           
           
           
Sun and Moon Data 22.08.42
Sun and Moon Data 23.08.42
Sun and Moon Data 24.08.42
 
- 27 -
 
           
           
           
    continued      
    24.08.42 Caribbean Sea    
    12.20 - 12.40   Test dive.  
    16.00 EC 2996    
    20.00 EC 5321 Transit speed.  
    24.00 EC 5238    
                                              
    25.08.42 Trade Wind 3, Sea 2-3, overcast, low clouds, hazy horizon, later visibility improving, at times rain showers, around evening sunshine, 1014 mb    
    04.00 EC 5216    
    08.00 EC 2794    
    12.00 EC 2745    
      Day's run 166 nm    
    13.40 - 13.52   Test dive.  
    15.25   Steamer bearing 345°T.  Steamer steers easterly course.  Began maneuver ahead.  
    16.08 EC 2715 Steamer bears 335°, 8 knots.  
    16.45   Steamer bears 310°, 8 knots.  
    17.07   Came to course 300°.  
    17.14   Dived and ran to meet submerged.  
    17.31   General course 110°, no zigzags.  
    18.25   Two related single shots from tubes I and IV.  Estimated range 200-300 meters, target angle 90°, enemy speed 8 knots.  No effect observed.  Steamer continued to run on a straight course.  Presume that with a depth setting of 3 meters the [torpedo] undershot the steamer at the short range.  
    18.32   Proceeded behind the steamer at depth A -50 meters to attack at night.  Reloaded torpedoes.  
    20.00 EC 2727 Came to periscope depth, to surface  
           
           
           
Sun and Moon Data 24.08.42
Sun and Moon Data 25.08.42
 
- 28 -
 
           
           
           
    continued      
    25.08.42 Caribbean Sea afterwards.  Steamer lies in 125°T apparently stopped.  Range 6000 meters.  It must be assumed that the steamer had suffered a cold hit [torpedo failed to detonate] before runoff of the safety range and thus a leak and at the same time an engine failure.  Approached submerged.  Steamer lists slightly to starboard and lies somewhat deeper astern.  Steamer has a stern cannon.  
    21.52   Unintentionally passed behind the stern of the steamer  
    22.00   Single shot from tube V.  Range 600 meters, enemy speed 2 knots, depth setting 2 meters.  After 2 minutes still no detonation heard in the conning tower.  
    22.03 EC 2728 Single shot from tube VI.  
    22.04   Hit astern.  Steamer is hidden from view astern in a high explosion column and settles in less than a minute over the stern.  Shortly after firing tube IV and a short time later detonations were heard.  
    22.25   Surfaced.  
    23.15   Went in the vicinity of two lifeboats fully occupied with survivors. According to the crew:  Dutch steamer "AMSTERDAM" (?) from Rotterdam.  From New York for Trinidad.  Deck cargo cotton, main cargo questionable.  Size 6000 GRT.  
    23.55   Aircraft directly astern.  Crash dive.  Depth A -20 meters.  
    24.00 EC 2729    
                                              
    26.08.42 Trade Wind 3, Sea 3, few clouds, Vis. good, night full moon with a nearly total lunar eclipse, by day sunshine, 1015 mb    
    01.35   Surfaced.  
    04.00 EC 2759    
           
           
Sun and Moon Data 25.08.42
Sun and Moon Data 26.08.42
 
- 29 -
 
           
           
           
    continued      
    26.08.42 Caribbean Sea    
    08.00 EC 5123    
    12.00 EC 5153    
      Day's run 133 nm    
    16.00 EC 5141    
    20.00 EC 1999    
    24.00 EC 1952    
                                              
    27.08.42 Trade Wind 2-3, Sea 2, few clouds, clear horizon, Vis. good, 1014 mb    
    00.48 - 01.20   Test dive.  
    04.00 EC 1678    
    08.00 EC 1586    
    12.00 EC 1547    
      Day's run 188 nm    
    14.32   Morant Cay's comes in sight ahead.  Came to course 270°.  
    16.00 EC 1455    
    20.00 EB 3665    
    22.30   Radio Message  2030/27/266:  Convoy in sight EC 1927.  Course 330°.  Low speed,  1 flying boat.    Ites.  
    23.30   Radio Message  2215/27/267:  Convoy position EC 1912.  Course 330°, 8 knots, Have contact on flying boat and steamer behind convoy.    Ites.  
        I am positioned 170 to 180 nm from the convoy and can be there at lightness.  I accept that the convoy will go to the north and not head for Kingston.  
    24.00 EB 3645    
                                              
    28.08.42 Trade Wind 3, Sea 2, cloudy, 1015 mb    
    00.00   Came to course 80° to head for naval square 1210.  
    00.10   Flying boat bearing 270°T, flies directly towards.  Crash dive depth A -20 meters.  
           
Sun and Moon Data 26.08.42
Sun and Moon Data 27.08.42
 
- 30 -
 
           
           
           
    continued      
    28.08.42 Caribbean Sea    
    01.45   Surfaced after sunset.  After surfacing came to course 80° at GF.  Swell and Sea State are so heavy that one can only hold 2 x HF.  
    02.33   Starboard engine stopped because the associated cooling water pump failed.  According to the Chief Engineer it will be out of service for several hours.  I decide to break off pursuit of the convoy and to move off to the south to carry out the engine repairs.  
    03.00   Came to course 170°.  
    04.00 EB 3645    
    08.00 EB 3922    
    12.00 EB 3956    
      Day's run 178 nm    
    14.30   I decide to proceed via EB 37 and 26 to DL 68, to repair the starboard cooling water pump in calm, particularly as the port cooling water pump has been out of service since the end of July.  
    14.48   Course 170°.  
    16.00 EC 1742    
    20.00 EB 3953    
    24.00 EB 3963    
                                              
    29.08.42 Trade Wind 2, Sea 2 few clouds, Vis. good, very warm, 1016 mb    
    04.00 EB 3843    
    08.00 EB 3761    
    12.00 EB 3714    
      Day's run 183 nm    
    14.30   Came to course 319°.  
    16.00 EB 2695    
    20.00 EB 2652    
           
           
           
Sun and Moon Data 28.08.42
Sun and Moon Data 29.08.42
 
- 31 -
 
           
           
           
           
    29.08.42 Caribbean Sea    
    22.00   Radio Message  2212/29/211:  1)  Cooling water pumps of both diesels out of service.  Damage cannot be repaired with on board means.  2)  On 25 August naval square EC 2728 freighter 6000 GRT sunk.  Course 110°.  3)  Position EB 2616.  104 cbm, 9 + 8 torpedoes.  4)  Trade Wind 3, Sea 3, 1015 mb, rising.  5)  Am missing Serial Nos. 274 from 23 August, 58, 77, 81, 95, 96 from 25 August, 37 from 26 August, 78, 79, 81 from 28 August.    Fechner.  
    24.00 EB 2377    
                                              
    30.08.42 Trade Wind 1, Sea 0, clear horizon, Vis. good, very hot, 1016 mb    
        Radio Message  0109/30.219:  Repeat of the contents from Radio Message 237 from 26 August.  
    04.00 EB 2256    
    08.00 EB 2216    
    12.00 DN 8792    
      Day's run 179 nm Radio Message  1057/30/223: With contents, which parts needed to repair a cooling water pump must be reported.  
    14.10 - 14.40   Test dive.  
    16.00 DM 7936    
    20.00 DM 7684    
    21.00   Radio Message 2045/30/233:  For cooling water pump new type crankshaft with bronze bearing insert and connecting rod bearings for both connecting rods.  
    24.00 DM 7565    
                                              
    31.08.42 Trade Wind 1, Sea 0, few clouds, Vis. good, very warm, 1016 mb    
    04.00 DM 7516    
    08.00 DM 7194    
           
Sun and Moon Data 29.08.42
Sun and Moon Data 30.08.42
 
- 32 -
 
           
           
           
    continued      
    31.08.42 Caribbean Sea    
    10.30   Radio Message  1001/31/248:  To Pfeffer.  Have ready a crankshaft with all bearings and connecting rod bearings for one diesel cooling water pump to give to Fechner.  Suggest meeting place as soon as foreseeable.  
    12.00 DM 7145    
      Day's run 192 nm    
    13.25 - 14.00   Test dive.  
    14.55   Crash dive for land-based aircraft, abeam to starboard, flying direction 270°, range = 3000 meters.  At depth A -40 meters one heavy and one light aircraft bomb.  No significant damage.  
    16.00 DL 9369    
    17.15   Surfaced.  
    18.25   Crash dive for land-based aircraft astern.  At depth A -50 meters one heavy bomb in the vicinity astern.  Decision:  proceed submerged, until onset of darkness, then move off to the east, because heavy rattling sounds are heard at the level of the propeller at [higher] speed.  
    20.00 DL 9392    
    24.00 DL 9398    
                                              
    01.09.42 Trade Wind 2, Sea 1, Vis. good, isolated clouds, very hot, 1014 mb    
    02.30   Surfaced.  Course 120°.  Moved off at HF.  
    04.00 DL 9636    
    08.00 DM 7452    
    12.00 DM 7571    
      Day's run 124 nm Radio Message 2207/31/287:  Suggested meeting point on 3 September at dawn.  DL 2555.  Radio direction finder out of service.  Question arrival Fechner.  Position DK 3868.  Pfeffer.  
           
           
Sun and Moon Data 31.08.42
Sun and Moon Data 01.09.42
 
- 33 -
 
           
           
           
    continued      
    01.09.42 Caribbean Sea    
        Radio Message 1015/1/21:   
        1)  To Fechner and Steinhoff.    No spare parts from Pfeffer.  Transfer from Steinhoff anticipated.  Meeting point for this suggested in about naval square EC 50.  
        2)  Steinhoff spare parts in accordance with Radio Message to Pfeffer of 31 August verify preparation and arrival.  
        3)  Fechner afterwards operations area in accordance with Markworth situation report, Wattenberg occupies.  
        4)  Steinhoff return transit with 30 cbm.  
    16.00 DM 7558    
    20.00 DM 7839 Radio Message 1400/1/225:  From Steinhoff:  Giving pump parts not possible.  Port cooling water pump damaged like Fechner.  
    24.00 DM 7954 Decision:  Go into Markworth operations area.  
                                              
    02.09.42 Trade Wind 1, Sea 0, few clouds, Vis. good, very warm    
    00.00 - 01.05   Stopped due to outboard work to repair the aircraft bomb damage.  A plate torn loose at the keel was found to be the cause of the rattling sound and was removed.  
    04.00 DM 7995    
    08.00 EB 2116    
    12.00 EB 2164    
      Day's run 168 nm    
    14.05 - 14.40   Test dive.  
    16.00 EB 2511    
    17.20   Crash dive for flying boat astern.  At depth A +0 meters two heavy bombs.  No damage.  Continued submerged until darkness.  
    20.00 EB 2516    
    24.00 EB 2527    
                                              
           
Sun and Moon Data 01.09.42
Sun and Moon Data 02.09.42
 
- 34 -
 
           
           
           
           
    03.09.42 Caribbean Sea    
      Trade Wind 2-3, Sea 2, overcast, rain showers    
    01.50   Surfaced.  
    04.00 EB 2565    
    08.00 EB 2688    
    12.00 EB 3743    
      Day's run 166 nm    
    16.00 EB 3844    
    20.00 EB 3885    
    24.00 EB 6235    
                                              
    04.09.42 Trade Wind 3, Sea 2-3, clear horizon, lightly cloudy, all day sunshine    
    04.00 EB 6316    
    08.00 EB 6329    
    12.00 EB 6363    
      Day's run 152 nm    
    13.05 - 13.35   Test dive.  
    16.00 EC 4157    
    20.00 EC 4191    
    24.00 EC 4277    
                                              
           
           
           
           
           
           
           
           
           
           
           
           
           
Sun and Moon Data 03.09.42
Sun and Moon Data 04.09.42
 
- 35 -
 
           
           
           
           
    05.09.42 Caribbean Sea    
      Trade Wind 4, Sea 4, lightly cloudy, Vis. good, sunshine    
    04.00 EC 4284    
    08.00 EC 4557    
    12.00 EC 4617    
      Day's run 124 nm    
    13.15 - 13.35   Test dive.  
    16.00 EC 4626    
    20.00 EC 4638    
    24.00 EC 5419    
                                              
    06.09.42 Trade Wind 3, Sea 3, few clouds, Vis. medium, horizon somewhat hazy    
    04.00 EC 5429    
    08.00 EC 5517    
    12.00 EC 5528    
      Day's run 133 nm    
    12.58 - 13.20   Test dive.  
    14.05   Steamer bearing 120°T.  Range = 8 nm, target angle approximately 0°.  Smokestack and masts are easily distinguished.  I intend to let the steamer run to me.  
    14.54   Dived and proceeded at periscope depth.  Nothing is seen of the steamer.  
    15.36   Surfaced, pursued.  
    16.00 EC 5539 Steamer comes in sight again.  Course 120°.  No zigzags.  Began maneuver ahead.  
    20.00 EC 5655    
    20.44   Dived.  
    22.28   Shot from tube II.  Enemy target angle bow left 110°, speed 5 knots, range = 1500 meters.  
    22.30 EC 5659 Hit.  Steamer sinks after one minute over the stern.  
    22.44   Surfaced and went to the lifeboats.  
           
           
Sun and Moon Data 05.09.42
Sun and Moon Data 06.09.42
 
- 36 -
 
           
           
           
    continued      
    06.09.42 Caribbean Sea From the statements of the crew the steamer was 2000 GRT (own estimate 1500 GRT).  On the way to Trinidad.  Deck cargo lubricating oil in barrels.  Main cargo not determined.  Name of the steamer "ALOE" from statements of the crew.  Steamer was armed with a stern cannon.  
    24.00 EC 5667    
                                              
    07.09.42 Trade Wind 3, Sea 3-4, few clouds, occasional rain showers, hazy horizon    
    02.37   On request for situation report by Radio Message Serial No. 277 of 6 September:  
        Radio Message  0207/7/283:  1)  On route DL 93 and back to EC 55 no traffic.  Air in coastal vicinity,  DL 93 and EB 21 aircraft bombs.  2)  Just now in EC 56 coastal freighter 2000 GRT sunk.  Course 110°.  3)  8 + 8 torpedoes, 74 cbm.  All naval squares.  
    04.00 EC 6446    
    08.00 EC 6456    
    12.00 EC 6541    
      Day's run 144 nm    
    16.00 EC 6543    
    20.00 EC 6537    
    21.45   Mast heads bearing 10°T, appeared out of a rain squall.  
    21.50   Dived.  Sound bearing shifts out very quickly astern.  After briefly balancing the boat went to periscope depth.  Fast motor ship estimated 8000-10000 GRT.  Course 200° with light zigzags.  Speed timed at 16 knots.  Range = 5000 meters.  Target angle already left 100°.  Shooting is no longer possible.  
    23.07   Surfaced.  Enemy is out of sight.  Decision:  Because the enemy runs at very high speed and quite heavy Sea State prevails pursuit is hopeless, as well the steamer probably  
           
           
           
Sun and Moon Data 06.09.42
Sun and Moon Data 07.09.42
 
- 37 -
 
           
           
           
    continued      
    07.09.42      
        would not be found in the soon arriving darkness.  
    24.00 EC 6536    
                                              
    08.09.42 Trade Wind 3, Sea 2-3, few clouds, very warm, Vis. good    
    04.00 EC 6624 Transit speed.  
    08.00 EC 6633    
    12.00 ED 4187    
      Day's run 138 nm    
    13.00 - 13.30   Test dive.  
    16.00 ED 4198    
    20.00 ED 4288 Transit speed.  
    24.00 ED 4298    
                                              
    09.09.42 Trade Wind 3, Sea 2-3, few clouds, strong sunshine, Vis. good    
    04.00 ED 4379    
    08.00 ED 4398    
    12.00 ED 5179    
      Day's run 137 nm    
    13.15 - 13.35   Test dive.  
    16.00 ED 5186    
    17.17   Crash dive for land-based aircraft, bearing 290°T, flying direction 180°.  
    18.40   Surfaced.  Transit speed diesel-electric.  
    19.40   Crash dive for land-based aircraft, bearing 170°T, flying direction 180°.  Proceeded submerged until the beginning of darkness.  
    20.00 ED 5196    
    24.00 ED 5275    
                                              
    10.09.42 Trade Wind 2-3, Sea 2, sunshine, few clouds, Vis. good    
           
           
Sun and Moon Data 08.09.42
Sun and Moon Data 09.09.42
Sun and Moon Data 10.09.42
 
- 38 -
 
           
           
           
    continued      
    10.09.42 Caribbean Sea    
    01.00   Surfaced.  Ran off at 2 x HF.  
    04.00 ED 5299    
    08.00 ED 5399    
    12.00 ED 6277    
      Day's run 202 nm    
    12.45   Coast of Dominica and Martinique comes in sight.  
    15.00   Dived.  Proceeded submerged until the beginning of darkness.  
    16.00 BD 6289    
    20.00 ED 6297    
    24.00 ED 6298    
                                              
    11.09.42 E 2, Sea 1-2, at times heavily overcast, rain showers, Vis. good    
    01.00   Surfaced.  At 2 x HF went through the Dominican Channel.  Lighthouse on Martinique burns as in peacetime, on Dominica extinguished.  
    04.00 ED 6621    
    08.00 EE 4415    
    12.00 EE 4515 Went to Diesel-electric.  
      Day's run 164 nm    
    12.55 - 13.15   Test dive.  
    16.00 EE 4526    
    20.00 EE 4624    
    24.00 EE 4665    
                                              
    12.09.42 Trade Wind 2, Sea 1, few clouds, rain showers, very warm, Vis. good    
    01.10 - 00.40   Stopped due to over deck repairs.  
    04.00 EE 5481    
    08.00 EE 5733    
    12.00 EE 5812    
      Day's run 181 nm    
           
           
Sun and Moon Data 10.09.42
Sun and Moon Data 11.09.42
Sun and Moon Data 12.09.42
 
- 39 -
 
           
           
           
    continued      
    12.09.42 Atlantic    
    12.30 - 12.45   Test dive.  
    16.00 EE 5853    
    20.00 EE 5971    
    24.00 EE 5989    
                                              
    13.09.42 E 3, Sea 1-2, isolated clouds, Vis. good    
    04.00 EE 8163    
    08.00 EE 9181    
    12.00 EE 9434    
      Day's run 173 nm    
    12.10 - 12.25   Test dive.  
    16.00 EE 9543    
    20.00 EE 9567    
    21.13   Radio Message 1530/13/237:  
        1)  Fuel oil bunker Starboard A lost 10 cbm due to aircraft bomb damage.  
        2)  Position Emil Emil 9438, approximately 30 cbm.  
        3)  On 7 September Emil Cäsar 6538 large motor freighter 16 knots, course 200°, sighted.  From Emil Cäsar 66 via Emil Dora 52 and Emil Emil 45 to Emil Emil 94 no traffic.  In Emil Dora 51 air surveillance.  
        4)  E 3, Sea 2, lightly overcast, 1016 mb, steady.  All  naval squares.        - Fechner -  
    24.00 EE 9672    
                                              
    14.09.42 E 2, Sea 1-2, few clouds, Vis. good    
    01.12   Radio Message 2044/13/255:  To Fechner:  Supply in about square DG 40 anticipated.  Begin return transit accordingly.  
    04.00 EE 9834    
    08.00 EE 9854    
           
           
Sun and Moon Data 12.09.42
Sun and Moon Data 13.09.42
Sun and Moon Data 14.09.42
 
- 40 -
 
           
           
           
    continued      
    14.09.42 Atlantic    
    12.00 EE 9732    
      Day's run 182 nm    
    12.00 - 12.20   Test dive.  
    16.00 EE 9493    
    20.00 EE 9543    
    24.00 EE 9289    
                                              
    15.09.42 E 3, Sea 2, overcast, Vis. good, very warm    
    04.00 EE 9347    
    05.54   Radio Message  Short Signal 0554:  My position is EE 93.  
                                                                    - U-164 -  
    06.12   Radio Message 0612:  Have begun return transit.  Fuel inventory 32 cbm.    - U-164 -  
    08.00 EE 9324    
    12.00 EE 8994    
      Day's run 170 nm    
    12.20 - 12.40   Test dive.  
    13.51   Radio Message  1238/15/227:  
        1)  Supply from Stiebler for Fechner, Reichenbach, Pfeffer in naval square DE 30 anticipated.  
        2)  Boats report arrival as soon as foreseen.  
    16.00 EF 4741    
    20.00 BF 4485    
    24.00 EF 4429    
                                              
    16.09.42 E 2, Sea 1, overcast, very warm    
    04.00 EF 4194    
    08.00 EF 4138    
    12.00 EF 1796    
      Day's run 181 nm    
    12.09 - 12.38   Test dive.  
           
           
           
Sun and Moon Data 14.09.42
Sun and Moon Data 15.09.42
Sun and Moon Data 16.09.42
 
- 41 -
 
           
           
           
    continued      
    16.09.42 Atlantic    
    16.00 EF 1818    
    20.00 EF 1573    
    24.00 EF 1522                                       
         
    17.09.42 SE 3-4, Sea 2-3, overcast, Vis. good    
    04.00 EF 1259    
    08.00 EF 1234    
    12.00 DQ 7868    
      Day's run 180 nm    
    12.25 - 12.47   Test dive.  
    16.00 DQ 7911    
    20.00 DQ 7645    
    24.00 DQ 7387                                       
         
    18.09.42 SE 2, Sea 1, clear sky, Vis. good    
    04.00 DQ 7352    
    08.00 DQ 4989    
    12.00 DQ 4962    
      Day's run 182 nm    
    16.00 DQ 4696    
    20.00 DQ 5417    
    21.45   Radio Message  2118/18/213:  Expect to be in DN 35 on the morning of 22 September.  
    24.00 DQ 5145                                       
         
    19.09.42 SW 6-8, Sea 6-7, overcast, squalls, strong rain showers    
    04.00 DQ 2787    
    08.00 DQ 2755    
    12.00 DQ 2497    
      Day's run 191 nm    
    12.00 - 12.30   Test dive.  
    16.00 DQ 2453    
           
           
           
Sun and Moon Data 16.09.42
Sun and Moon Data 17.09.42
Sun and Moon Data 18.09.42
Sun and Moon Data 19.09.42
 
- 42 -
 
           
           
           
    continued      
    19.09.42 Atlantic    
    20.00 DQ 2183    
    24.00 DQ 2135                                       
         
    20.09.42 SW 2, Sea 1, overcast, Vis. good, very warm    
    04.00 DE 8968    
    08.00 DE 9477 Switched to America I on orders from Control (Radio Message Serial No. 333 of 20 September).  
    12.00 DE 9473    
      Day's run 177 nm    
    12.15 - 12.42   Test dive.  
    16.00 DE 9424    
    20.00 DE 9158    
    24.00 DE 9123                                       
         
    21.09.42 SW 2, Sea 1, overcast, very warm    
    04.00 DE 6767    
    05.55   Radio Message  2300/20/241:  Meeting naval square 30 on 25 September dawn.  Position naval square BC 9655.  
                                                                     - Stiebler -  
    08.00 DE 6732    
    12.00 DE 6469    
      Day's run 172 nm    
    16.00 DE 6511    
    20.00 DE 6248    
    24.00 DE 6212                                       
         
    22.09.42 SW 3-4, Sea 2-3, overcast, strong sunshine, rain showers    
    04.00 DE 3846    
    08.00 DE 3587    
    12.00 DE 3529    
      Day's run 183 nm    
           
           
           
           
Sun and Moon Data 19.09.42
Sun and Moon Data 20.09.42
Sun and Moon Data 21.09.42
Sun and Moon Data 22.09.42
 
- 43 -
 
           
           
           
    continued      
    22.09.42 Atlantic    
    12.10 - 12.30   Test dive.  
    16.00 DE 3534    
    20.00 DE 3533    
    24.00 DE 3611    
                                              
    23.09.42 SW 2, Sea 1-2, overcast, rain showers, horizon good, Vis. very good    
    00.43   Radio Message  0030/23/221:  Waiting on Stiebler naval square DE 3555.        - Fechner -  
    04.00 DE 3378    
    08.00 DE 3376    
    11.30   Radio Message   0946/23/229:  Final meeting point for supply Stiebler is naval square DE 3355.  No further independent changes.  
    12.00 DE 3373    
    15.30   Radio Message  1227/23/240:  Return harbors are for Bleichrodt, Dierksen, Hoffmann, Fechner, Schacht and Pfeffer Lorient.  For Prätorius and Literscheid Nazaire, for Becker and Reichenbach Brest, for Löser and Hinsch Pallice.  
    16.00 DE 3381    
    17.15   Radio Message Short Signal:  1715:  Will be at meeting point on 24 September at 15.30 hours.        - U-164 -  
    20.00 DE 3358    
    24.00 DE 3357    
                                              
    24.09.42 ESE 3-4, Sea 3, overcast, rain showers, Vis. moderate, greatly changing    
    04.00 DE 3348    
    08.00 DE 3348    
    12.00 DE 3349    
      Day's run 39 nm    
    16.00 DE 3352    
    16.41   Supply boat and "U-171" come in sight.  
           
           
Sun and Moon Data 22.09.42
Sun and Moon Data 23.09.42
Sun and Moon Data 24.09.42
 
- 44 -
 
           
           
           
    continued      
    24.09.42 Atlantic    
    18.30 - 00.15   Began oil transfer. 48 cbm of oil were taken over.  Afterwards care of the patients by the Doctor and taking over of medical supplies.  
    25.09.42    
    20.00 DE 3353    
    22.00   Departure of "U-171",  
    24.00 DE 3323                                       
         
    25.09.42 E 3-4, Sea 3, overcast, strong rain showers, heavy Swell, Vis. medium, 1021 mb rising    
    00.15   Supply ended.  Course 66°, transit speed diesel-electric  
    04.00 CD 7793    
    08.00 CD 7854    
    10.57 - 11.30   Test dive.  
    12.00 CD 7855    
      Day's run 128 nm    
    16.00 CD 7678    
    20.00 CD 7683    
    24.00 CD 8447                                       
         
    26.09.42 E 3, Sea 2-3, lightly cloudy, strong sunshine, very warm, 1031 rising    
    04.00 CD 8452    
    08.00 CD 8435    
    12.00 CD 8433    
      Day's run 136 nm    
    16.00 CD 8276    
    20.00 CD 8283    
    24.00 CD 8269                                       
         
           
           
           
           
Sun and Moon Data 24.09.42
Sun and Moon Data 25.09.42
Sun and Moon Data 26.09.42
 
- 45 -
 
           
           
           
           
    27.09.42 Atlantic    
      E 3, Sea 2-3, overcast, sunshine, very warm, Vis. medium, 1033 mb rising    
    04.00 CD 8343    
    08.00 CD 8337    
    11.00 - 11.25   Test dive.  
    12.00 CD 9111    
      Day's run 127    
    13.10   Steamer in sight bearing 80°T, course 270°, target angle bow right 10°.  Dived.  Submerged approach.  Steamer has proper Portuguese markings.  
    14.00   Surfaced.  Steamer halted and investigated.  It is the steamer "SINES" with home port Lisbon.  3172 GRT.  On the way from Lisbon to Baltimore.  Cargo cork.  Papers are in order.  Crew consists of Portuguese, partly colored.  
    14.30   Steamer released.  Continued diesel-electric.  
    15.55   Radio Message 1525/27/154:  Naval square CD 67xx Portuguese "SINES" from Lisbon to Baltimore.  Cargo cork.  Released.  
    16.00 CD 6758    
    20.00 CD 6765    
    24.00 CD 6819    
                                              
    28.09.42 SE 3, Sea 2, heavily cloudy, cool Vis. deterioration around evening, 1034 mb falling    
    04.00 CD 6831    
    08.00 CD 6675    
    11.30   Stopped for over deck work.  Joints of the linkage of the vents were repaired.  A leak in the air piping of air bottle Group 5 was eliminated.  
           
           
           
Sun and Moon Data 27.09.42
Sun and Moon Data 28.09.42
 
- 46 -
 
           
           
           
    continued      
    28.09.42 Atlantic    
    12.00 CD 6692    
      Day's run 170 nm    
    14.00 CD 6692    
    19.26   Work ended, continued diesel-electric.  
    20.00 CD 6693    
    24.00 CE 4454    
                                              
    29.09.42 NE 3, Sea 2-3, heavy Swell, overcast, low clouds, very squally, at time hazy horizon, Vis. medium, at night the wind shifts to NNW 6-7, Sea 6, short high Swell, 1028 mb falling    
    04.00 CE 4438    
    08.00 CE 4513    
    11.33 - 12.00 CE 4295 Test dive  
      Day's run 118 nm    
    16.00 CE 4373    
    20.00 CE 4364    
    24.00 CE 5118    
                                              
    30.09.42 NNW 5, Sea 5-6, overcast, at times sunshine, hazy horizon, Vis. medium, heavy Swell, 1024 mb, steady    
    04.00 CE 5125    
    08.00 CE 2798    
    12.00 CE 2849    
      Day's run 153 nm    
    16.00 CE 2853    
    20.00 CE 2917    
    24.00 CE 2925    
                                              
           
           
Sun and Moon Data 28.09.42
Sun and Moon Data 29.09.42
Sun and Moon Data 30.09.42
 
- 47 -
 
           
           
           
           
    01.10.42 Atlantic    
      NNW 4-5, Sea 3-4, heavy overcast, only occasional sunshine, night rain, Vis. changing, 1024 mb steady    
    04.00 CE 2699    
    08.00 CE 2484    
    10.13 - 10.35   Test dive.  
    12.00 CE 3571    
      Day's run 156 nm    
    16.00 CE 3558    
    20.00 CE 3563    
    24.00 CE 3628    
                                              
    02.10.42 NE 3-4, Sea 3, overcast, rain showers, Vis. changing, at times sunshine, 1026 mb steady    
    04.00 CE 3633    
    08.00 CF 1287    
    10.35 - 11.13   Test dive.  
    12.00 CF 1292    
      Day's run 158 nm    
    16.00 CF 1348    
    19.18   Radio Message  1821/125/275:  Hermann, Schäfer, Fechner, Breithaupt, Giessler tomorrow between 04.00 and 07.00 hours report weather by Short Signal.  
    20.00 CF 1364    
    21.31   Radio Message  2100/2/129:  Position naval square CF 1364.  Medium shipyard assistance.  Need 7 cells and 2 diesel cooling water pumps.  
    24.00 CF 2118    
                                              
    03.19.42 NE 3, Sea 2, overcast, misty, rain showers    
           
           
Sun and Moon Data 01.10.42
Sun and Moon Data 02.10.42
Sun and Moon Data 03.10.42
 
- 48 -
 
           
           
           
    continued      
    03.10.42 NE 3, Sea 2, overcast, misty, rain showers, Vis. medium, low hanging clouds, 1026 falling    
    04.00 CF 2126    
    04.57   Radio Message Short Signal weather report:  43°N, 22°W, falling 1026 mb, +18°C, NE 3-4, cloudless, Vis. 10 nm, NE-Swell.    - Fechner -  
    08.00 BE 7997    
    10.17 - 10.29   Test dive.  
    12.00 BE 8774    
      Day's run 157 nm    
    16.00 BE 8758    
    20.00 BE 8763    
    24.00 BE 8825    
                                              
    04.10.42 NE 2, Sea 1, overcast, fog, misty, at times starry clear, evening NE 0-1, Sea 0, overcast, low hanging clouds, otherwise Vis. good, 1018 mb falling    
    04.00 BE 8678    
    08.00 BE 8668    
    10.03   Dived, proceeded submerged.  
    12.00 BE 9442    
      Day's run 216 nm    
    16.00 BE 9451    
    18.54   Surfaced.  Charged the battery.  
    20.00 BE 9434    
    24.00 BE 9285    
                                              
    05.10.42 ENE 3-4, Sea 2, overcast, low hanging clouds, Vis. medium-moderate, 1013 mb steady    
    04.00 BE 9294    
           
           
           
Sun and Moon Data 03.10.42
Sun and Moon Data 04.10.42
Sun and Moon Data 05.10.42
 
- 49 -
 
           
           
           
    continued      
    05.10.42 Atlantic    
    08.00 BE 9292 Surfaced.  Charged the battery.  
    12.00 BE 9361    
      Day's run 171 nm    
    16.00 BF 7123 Dived.  Proceeded submerged.  
    19.00   Surfaced.  
    20.00 BF 4797    
    23.40   Dived.  Proceeded submerged.  
    24.00 BF 4858    
                                              
    06.10.42 ENE 3-4, Sea 2, overcast, low hanging clouds, Vis. medium-moderate    
    04.00 BF 4259    
    08.00 BF 4865 Surfaced.  Ran at 2 x HF.  
    08.35   Sailing vessel directly ahead, apparently a fisherman.  Avoided to the south.  
    12.00 BF 4953    
      Day's run 186 nm    
    12.30   Aircraft bearing 30°T, course north.  Low flying.  Crash dive.  Apparently a German fighter.  
    16.00 BF 4938    
    18.00   Surfaced.  Continued at 2 x HF.  
    20.00 BF 5721    
    21.09   Radio Message  2036/6/153:  Position 7 October 16.00 hours L 2.        - Fechner -  
    23.30   Dived.  Proceeded submerged.  
    24.00 BF 5578    
                                              
    07.10.42 E 0, light Swell, foggy, Vis. bad, rain    
    04.00 BF 5579    
    07.50   Surfaced.  Ran at GF.  
    08.00 BF 5588    
    08.40   Came to course 7°.  
    11.30   From 11.30 hours fishing trawlers and luggers in sight continuously.  
           
           
Sun and Moon Data 05.10.42
Sun and Moon Data 06.10.42
Sun and Moon Data 07.10.42
 
- 50 -
 
           
           
           
    continued      
    07.10.42 Bay of Biscay    
    12.00 BF 5532    
      Day's run 186 nm    
    16.40   Taken in convoy.  
    17.10   Pen Men lighthouse abeam.  
    18.00   Made fast Lorient.  
           
                                              
                                              Korv.-Kapt. and Kmdt.  
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
Sun and Moon Data 07.10.42

 
 
     
                         Comments of the Befehlshabers der Unterseeboote  
                         on the Kriegstagebuch of "U-164" from 28.11.41 - 07.10.42  
     
                  The execution of the first patrol of the Kommandanten with a new boat was not skilled enough.  
                  Specifically it is noted:  
  1.)           During the convoy attack on 30 July getting closer must be attempted in any case.  At a shooting range of 4000-5000 meters there is very little possibility of success.  
  2.)           The pursuit in the  general course direction of 230° was incorrect.  It is imperative to operate at highest speed on the last sighting report.  Only in fog and poor visibility after long and unsuccessful search is it correct to search on the general course of the enemy.  
  3.)          In the Caribbean operations area was changed too quickly.  A delay of only 1 day in an area allows no overview of the traffic situation.  
  4.)          During the coup de grâce on 25 August the range was substantially underestimated. Do not shoot a further coup de grâce too quickly.  Await effects, conserve torpedoes.  
  5.)          Tenacious operation was necessary on the convoy reported by "U-94".  The failure of an engine for a few hours is no basis for breaking off the operation.  During repair run along on one engine at the highest possible speed.  
  6.)          On 7 September with the independent surfaced much too late.  A maneuver attempt must be made.  Be tenacious and do not give up success opportunities so quickly.  
     
   

For the Befehlshaber der Unterseeboote

 
 
- The Chief of the Operations Department -  
                        
   
     
     
 


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