U-181 - 1st War Patrol

Translation by Jerry Mason with the help of Andi Forster

Departed
Date
Arrived
Date
Days at Sea
Kiel
12 September 1942
Bordeaux
18 January 1943
129

 

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
3 Nov 42
05.48 - 16.20
37°25'S, 13°30'E
EAST INDIAN
8,159
American
8 Nov 42
08.56 - 22.05
36°00'S, 25°55'E
PLAUDIT
5,060
Panamanian
10 Nov 42
02.03 - 08.27
35°10'S, 29°28'E
K.G. MELDAHL
3,799
Norwegian
 
13 Nov 42
08.00
33°00'S, 29°02'E
EXCELLO
4,969
American
 
19 Nov 42
21.25
25°44'S, 33°03'E
GUNDA
2,241
Norwegian
20 Nov 42
01.24
25°38'S, 33°12'E
CORINTHIAKOS
3,562
Greek
 
22 Nov 42
00.33
26°15'S, 33°12'E
ALCOA PATHFINDER
6,797
American
 
24 Nov 42
07.37
26°50'S, 34°55'E
MOUNT HELMOS
6,481
Greek
 
24 Nov 42
20.34 - 22.20
26°08'S, 34°24'E
DORINGTON COURT
5,281
British
 
28 Nov 42
22.50 - 24.00
25°03'S, 34°00'E
EVANTHIA
3,551
Greek
 
30 Nov 42
05.11 - 06.55
23°40'S, 35°44'E
CLENTHIS
4,153
Greek
 
1 Dec 42
17.40
24°33'S, 35°44'E
AMARYLIS
4,328
Panamanian
 
     
 Total = 58,381
   
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
 
   
===========================
 
   
 
                                                                          "  U  181  "
 
 
 
 
 
 
                Kommandant: Kapitänleutnant   L  ü  t  h  
           
           
           
                             
           
           
           
           
           
                                                  Beginning:    9 May 1942,  
                                                  Ending:      12 September 1942.  
           
           
           
           
           
           
                      
       
       
       
       
        © U-boat Archive 2023 - all rights reserved  
Click the flag to view the above page from the original German KTB
 
 
           
           
           
           
    09.05.42 B r e m e n " U-181 " was commissioned.  
    Deschimag    
    10.05.42   Provisioning.  
    11.05.42   Individual training and trim test on the Weser.  
    12.05.42 Weser Transit to Bremerhaven with flak escort.  
    13.05.42 Elbe Transit Bremerhaven - Brunsbüttel with mine and flak escort.  
    14.05.42 Kaiser Wilhelm Canal Transit to Kiel.  
    06.00 Brunsbüttel Ready for sea.  
    13.05 Kiel Entered Kiel - Wik.  
    15.05.42 Kiel UAK testing.  
    23.05.42      
    11.00   Transit to Neustadt in Holstein.  
    19.00 Neustadt in Holstein Entered port.  
    24.05.42   Whitsunday.  
    25.05.42      
    11.00   Ready for sea, transit to Kiel.  
    18.10 Kiel Entered port.  
    26.05.42   UAK testing.  
    29.05.42      
    04.00   Ready for sea, transit to Stettin with AK sea trial enroute.  
    18.10 Swinemünde Entered port.  
    30.05.42      
    05.00   Ready for sea, transit to Stettin.  
    09.00 Stettin Accommodated at the base of the 4th U-Flottille.  Made arrangements with the base.    
    31.05.42   Muster for the celebration of Skagerrak Day  
        Sunday Service.  
    01.06.42      
    08.30 Central Baltic Ready for sea, transit to Danzig.  
    02.06.42      
    06.28 Danzig Made fast alongside "IBERIA".  
    09.30 -      
    16.30   Took over fuel oil.  
                                                      
           
                                                                
 
 
 
           
           
           
           
    03.06.42      
    06.35 - Gotenhafen Ready for sea, transit to Gotenhafen, followed by TEK testing.  
    06.06.42      
    12.50   Ready for sea, transit to Danzig  
    14.00 Danzig Made fast alongside "IBERIA".  
    07.06.42   Sunday Service.  
    08.06.42 -   UAG I testing.  
    15.06.42      
    15.06.42      
    20.34 Hela Entered port.  
    16.06.42 -   Training with the Agru -Front.  
    24.06.42      
    24.06.42      
    21.13 Danzig Made fast alongside "DEUTSCHLAND".  
    25.06.42 -   Torpedo firing with the 25th U-Flottille.  
    26.06.42   While passing "DEUTSCHLAND" current set the boat against the side of "DEUTSCHLAND" and a damaged fender was squeezed exposing the iron core which pressed a hole in ballast tank 5.  
    27.06.42      
    13.30   Entered the Danziger Werft to repair the hole.  
    29.06.42   Undocked.  Work was completed over Saturday - Sunday.  
        Afterwards trim test and independent training.  
        Firing cancelled because of Russian U-boat danger.  
    30.06.42 Gulf of Danzig Torpedo firing.  
    03.18   Afterwards entered Gotenhafen.  
    01.07.42 - Eastern Baltic Tactical training.  
    10.07.42      
    06.00 Gotenhafen Entered port.  
    09.00   Training conference.  
    11.07.42      
    08.12   Ready for sea.  
    1000 - 13.00 Gulf of Danzig Artillery firing.  
    15.00 Danzig Entered port.  
                                                      
           
 
 
 
           
           
           
           
    12.07.42 - Gulf of Danzig Torpedo firing followed by transit to Rönne.  
    15.07.42      
    16.07.42 Rönne Entered port.  
    17.07.42   Sound trials, afterwards transit to Stettin.  
    18.07.42 Stettin Entered port, afterwards boat cleared.  
    20.07.42 - Oderwerke Stettin Shipyard period.  
    28.08.42      
    29.08.42 -   Final trim test, taking on fuel oil, arming the boat.  
    03.09.42      
    04.09.42   Final trim test.  
    15.00 Stettin Departed.  
    05.09.42 - Hela Training with the Agru - Front.  
    06.09.42   Afterward transit to Kiel.  
    08.09.42 Kiel    
    09.00   Entered port.  
    09.09.42 -   Final arming.  
    11.09.42      
    12.09.42   Departed on war patrol.  
           
                                            
                                              Kapitänleutnant and Kmdt.  
           
           
           
           
           
           
           
           
           
           
           
           
           
           
 
 
                                                                                   
 
           
           
           
           
           
           
           
   
K  r  i  e  g  s  t  a  g  e  b  u  c  h
 
       
   
"  U  181  "
 
           
           
        Kommandant:   Kapitänleutnant   L  ü  t  h  
                             
                       
           
           
      Enclosures                               Beginning:  12.9.1942  
                                          Ending:  18.1.1943  
           
           
           
           
           
           
           
           
           
           
           
           
           
           
           
                                                                    
       
       
       
 
 
- 1 -
 
           
           
           
           
    12.09.42 Kiel    
    07.00   Departed with "U-610", "U-620", "U-212" and "U-253".  
    10.21 Point Red 15 Taken in convoy.  Continued transit of the Great Belt and Skagerrak to Kristiansand.  
      N 1, Vis. good, freshening, cloudy  
    12.00 Great Belt Day's run:  53 nm -- nm.  
    13.09.42 Skagerrak    
    12.00 E 2, Vis. good Day's run:  207 nm -- nm.  
    21.15 Kristiansand Entered port to top off fuel.  
    14.09.42      
    07.55   Trim test in port.  
    08.40   Transit with flak and U-boat escort as far as Skudesnes.  
    12.00 South Coast of Norway Day's run:  118 nm -- nm.  
      E 3, Vis. good    
    18.40 AN 3153 Released from convoy, transit to the Atlantic  
      S 5, low clouds Initial point is BE 75.  
        Operations Order No 53 applies along with No. 52 with Supplemental Order "Eisbär".  
    24.00 AN 2892 Boat proceeded at 12 knots, to distance ourselves from 4 other boats.  
      S 5, light marine phosphorescence  
                                            
    15.09.42      
    04.00 AN 2831    
      S 7    
    08.30 AN 2329 Dived.  Fu.M.B. - enemy radar detection with vertical polarization, 2.40 meters.  
      Rain showers  
    09.20   Surfaced.  
    12.00 AF 8776 Day's run:  240 nm 3 nm.  
      S 5, Vis. poor Training dive, along with work on the periscope.  
    16.00 AF 8749 Surfaced, German U-boat briefly in sight bearing 340°.  
    20.00 AF 8447    
      SW 6, Vis. poor, a little marine phosphorescence                                     
         
    16.09.42      
    04.00 AF 7662    
    08.00 AF 7652 Switched to Ireland Circuit as ordered by radio message.  
    12.00 AF 7642 Day's run:  140 nm 8 nm.  
      N 3, Vis. good, low hanging clouds    
    13.13 AF 7644 Training dive and deep diving test to A +20 meters.  
    20.00 AF 7565 Surfaced.  
      NW 2, Vis. medium    
    24.00 AF 7554    
                                            
    17.09.42      
    03.44 AF 7542 Dived, Fu.M.B. - enemy radar detection with horizontal polarization, 1.70 meters.  
    04.28   Surfaced.  
           
                                                                
Sun and Moon Data 12.09.42
Sun and Moon Data 13.09.42
Sun and Moon Data 14.09.42
Sun and Moon Data 15.09.42
Sun and Moon Data 16.09.42
Sun and Moon Data 17.09.42
 
- 2 -
 
           
           
           
    continued      
    17.09.42      
    06.20 AF 7542 Dived.  Fu.M.B. - enemy radar detection with horizontal polarization, 1.70 meters.  
      Vis. poor  
    12.00 AF 7469 Day's run:  56 nm 22 nm.  
    13.02 NW 5, Vis. poor Surfaced.  
    13.48 AF 7469 Drifting mine abeam.  
    16.00 AF 7731 Dived due to weather conditions.  
    20.50 AF 7723 Surfaced.  
      W 2, Vis. poor    
    24.00 AF 7751    
      Weak marine phosphorescence                                                    
         
    18.09.42 West of the Shetland Islands    
    04.00 AN 1122    
    08.00 AM 3269    
    09.43 AM 3291 Dived due to weather conditions.  
      Low clouds    
    12.00   Day's run:  146 nm 13 nm.  
    13.10 AM 3282 Surfaced, 2 drifting mines abeam.  
      SW 2, Vis. medium, low clouds    
    13.54   Crash dive for aircraft approaching from a dark cloud astern at about 6000 meters.  
    13.55   At depth A -55 meters, [an aircraft bomb] near the after edge of the stern, minor failures.  
        Afterwards from 20.45 hours about 30 more or less distant depth charges, also propeller sounds in the listening gear.  
        Boat proceeded between depth A -20 and A +20 meters at KF.  
    22.10 AM 3272 Surfaced.  
      E 1, Vis. good, twilight    
    24.00 AM 3195    
      Weak marine phosphorescence    
                                                           
    19.09.42      
    04.00 AM 2299    
    07.34 AM 2412 Dived.  Fu.M.B. - enemy radar detection with vertical polarization, 2.50 meters (imprecise detection)  
    12.00 AM 2333 Day's run:  120 nm 27 nm.  
    16.00 AM 2334    
    22.00 AM 2325 Surfaced.  
      WSW 1    
                                                           
    20.09.42      
    04.00 AM 1443    
    08.00 AM 1355    
    11.20 AL 3493 Dived for aircraft to the west.  
        Day's run:  142 nm 21 nm.  
    13.25 S 2, Vis. good Surfaced.  
    16.00 AL 3616    
    20.00 AL 3561    
    24.00 AL 3543    
      Wind calm, moonlit night    
                                                           
           
           
Sun and Moon Data 17.09.42
Sun and Moon Data 18.09.42
Sun and Moon Data 19.09.42
Sun and Moon Data 20.09.42
 
- 3 -
 
           
           
           
           
    21.09.42 North Atlantic    
    02.00 AL 2668 2 escorts in sight ahead.  Course SW in line ahead 2000 meters apart.  Avoided to the south.  For about 30 minutes occasional enemy radar detections in Fu.M.B., horizontal polarization, 1.54 meters.  
    04.39 AL 2863 By radio message 03.58 hours reported weather as ordered; in addition: ".... To the north of Shetlands three horizontally polarized enemy radar detections, 1.70 meters.  On 18 September at noon in AM 3282 aircraft bombs, afterwards distant depth charges until evening.  Requested a spare crank bearing for the main engine coolant pump at the next opportunity".  
      SW 1, Vis. good  
      The only spare part had to be inserted on 19 September.  
    08.00 AL 2828 From now on the boat will make a short test dive each day at dawn.  
        Transit to the south on Diesel-electric with revolutions for 8 knots.  
    12.00   Day's run:  192 nm 4 nm.  
    16.00 AL 2877    
    20.00 AL 2936    
    24.00 AL 2962    
      W 6    
                                                           
    22.09.42      
    04.00 AL 2968    
    08.00 AL 2994    
    12.00 AL 5212 Day's run:  91 nm 2 nm.  
      W 8, Vis. changing    
    16.00 AL 5244    
      W 9    
    18.28 AL 5274 Dived for destroyer ahead at target angle 20°, nothing else is seen and destroyer quickly comes closer.  
    20.30 AL 5169 Surfaced.  
      W 10, Vis. poor    
    24.00 AL 5198    
      W 8-10    
                                                           
    23.09.42 West of Ireland    
    04.00 AL 5461    
    08.00 AL 5483    
    12.00 AL 5727 Day's run:  122 nm 8 nm.  
      NW 8    
    16.00 AL 5749 Incoming radio message 12.45 hours:  ". . . Delivery of spare parts from Grimme in BE 7355.  Both boats report time of arrival the latest applies.  Lüth, if necessary, confirm meeting and report execution.  Grimme position at this time BF 57."  
      Both boats are positioned about 600 nm away from the meeting point.  
    20.00 AL 8113    
      NW 7    
    21.56   Sent radio message 21.48 hours outside the zero beat gap: "Position for meeting place 27 September at 16.00 hours AL 8124.  NW 7, Vis. good. "  
        According radio message from Control, the message was received but corrupted.  
    24.00 AL 8145    
      N 5    
                                                           
           
Sun and Moon Data 21.09.42
Sun and Moon Data 22.09.42
Sun and Moon Data 23.09.42
 
- 4 -
 
           
           
           
           
    24.09.42      
    04.00 AL 8178    
    08.00 AL 8419    
    10.00   Dived, to refill the battery.  
    12.00 AL 8457 Day's run:  131 nm 7 nm.  
    14.10 N 6, Vis. good    
    16.00 AL 8752    
    20.00 BE 1224    
      N 7    
    22.41   Sent radio message 22.10 hours:  "BE 1252.  Prefer meeting point 27 September at 12.00 hours.  North 7, good visibility."  
        Sent outside the zero beat gap.  
    24.00 BE 1282    
      N 3                                                    
    25.09.42      
    00.20   Confirmation of radio message of 22.10 hours by Control.  
    04.00 BE 1525    
    08.00 BE 1559    
    12.00 BE 1826 Day's run:  176 nm 7 nm.  
    15.50 N 3 Vis. good Smoke cloud in the east.  Closed.  
        Several steamers and destroyers arranged over target angles 90-140°.   Held contact on smoke cloud and a masthead, course to identify.  
    16.30   Departed, in accordance with Operations Order No. 53, II, 9, not to attack convoys in BE, as this is apparently a steamer from a convoy.  
    17.40   Sent radio message 16.05 hours outside the zero beat gap:  "BE 1861 convoy, course 220°.  Departed in accordance with orders.  Request 30 cbm from Grimme."  
        Radio message was not confirmed.  
        For days the boat has had a strong oil trace.  The sea state prohibits searching the upper deck.  
    20.00 BE 4311    
      Medium swell    
    22.21   Resent radio message of 16.05 hours, was confirmed.  
    24.00 BE 4347    
      NW 3                                                    
         
    26.09.42      
    04.08 BE 4615 Sent Weather Short Signal per orders.  
      NW 4, Vis. 5 nm    
    08.00 BE 4668 Dived.  Masch.Gfr. Georgie is operated on by the naval doctor for a festering sweat gland with anesthetic.  
    12.00 BE 4675 Day's run:  154 nm 5 nm.  
    16.00 BE 4918    
    18.50   Incoming radio message 17.34 hours: ". . . 2)  Lüth and Hinsch to wait in meeting square depth 60 meters."  
        Conserving fuel by using auxiliary diesel with turns for 3 knots.  
    20.00 BE 4945    
    24.00 BE 4972    
      W 3, long swell                                                    
         
Sun and Moon Data 24.09.42
Sun and Moon Data 25.09.42
Sun and Moon Data 26.09.42
 
- 5 -
 
           
           
           
           
    27.09.42      
    02.50   Radio message from Grimme:   ". . . position 28 September 09.00 hours at meeting point. . ."  
      Boat is within 50 nm of the meeting point and therefore moves a bit to the west.  
    04.00 BE 4971    
    08.00 BE 4895    
    12.00 BE 4897 Day's run:  58 nm 4 nm.  
      N 3, haze Received the following radio messages: "Ob.d.M. [Supreme Commander-in-Chief, Navy] has ordered personally and again that orders concerning treatment of neutral ships are to be strictly adhered to.  Infringement of these orders has unpredictable political effects."  
                "In alteration of current regulations Portuguese steamers are not to be stopped up to and beyond the blockade area."  
        Oil trace has stopped, since the fuel from fuel oil ballast tank 2 port was transferred to the regulating fuel oil tank.  
        Today, at last, the upper deck can be entered.  It was determined that the interconnect valves of fuel oil ballast tanks 2 and 3 had opened one rotation and the emergency vent flap flap of fuel oil ballast tank 2 was not quite closed.  Also, the blown out fuel oil ballast tank 2 port seemed not to be watertight, but to flood slowly.  Which failures are due to aircraft bombs, can not be determined.  
        At most oil loss was about 10 cbm.  
    16.00 BE 7355    
    20.00 BE 7341    
    24.00 BE 7346    
      NW 3, Vis. medium    
                                                           
    28.09.42      
    04.00 BE 7354    
      NW 3    
    08.00 BE 7355 Reached meeting point.  "U-116" not seen.  
      NW 5, Vis. 8-10000 meters    
    09.44   Sent Short Signal:  "Send bearing signals for the meeting in accordance with war orders."  
        Operational confirmation took place, but no contents.  
    12.00 BE 7356 upper-left corner Day's run:  66 nm 3 nm.  
      NW 6, Vis. 3-5000 meters    
    14.10   Short Signal was delivered again but repeated incorrectly.  
    14.35   Short signal was confirmed with contents on other circuit.  
    16.24 BE 7357 upper-right corner    
      NW 7    
    18.10   Bearing signals from "U-116" bearing 235°.  
    18.40   Bearing signals from "U-116" bearing 215°.  
    19.33 BE 7349 "U-116" and "U-569" met.  
      NW 8, Vis. good Begin the spare parts transfer.  
        Boats proceed 100 meters abeam 20 degrees into the sea.  
                                                                
Sun and Moon Data 27.09.42
Sun and Moon Data 28.09.42
 
- 6 -
 
           
           
           
    continued      
    28.09.42      
    22.20 BE 7349 Approximately 60 kgs of spare parts were taken across in a hammock.  Now the transfer was broken off because of heavy sea and complete darkness.  
      Darkness, rain showers  
        Arranged a new meeting early tomorrow 08.00 hours in the same location.  If necessary, "U-116" should, send bearing signals because the boats will lose sight of each other in the prevailing weather conditions.  Also visual signaling is too difficult in the heavy seas.  
    24.00 BE 7348 Boat dives to save fuel and not to be shifted too much. At low RPM the boat is no longer capable of maintaining steerageway on the surface.  
                                                           
    29.09.42 Atlantic west of the Bay of Biscay  
    04.00 BE 7371    
    07.05 BE 7348 Surfaced.  
      NW 5, Vis. 1-3000 meters    
    09.50 NW 7, Vis. medium Bearing signals from "U-116" in 341°T.  
    10.50   Bearing signals from "U-116" in 323°I.  
    10.55   "U-569" in sight.  
    11.15 BE 7349 "U-116" met.  Spare parts transfer continued.  In the high swells the boats 200 meters apart lose sight of each other in the troughs.  A coolant pump of new type and an old type are taken over.  In addition approximately 6 heaving lines were fired, the connection line broke two times.  
      N 7, high swell, Vis. good  
    12.00 BE 7349 Day's run:  51 nm 13 nm.  
    14.00   Transfer ended.  Continued to the south.  Grimme takes responsibility for the message reporting accomplishment.  
    16.00 BE 7376 Incoming Radio Message 15.14 hours:   Lüth and Gysae proceed via DG 90, EH 90, ES 50, GR 80.  All naval quadrants.  
    20.00 BE 7619    
    24.00 BE 7679    
      N 6, long swells    
                                                           
    30.09.42      
    04.00 BE 7951    
    08.00 BE 7979    
    12.00 CF 2156 Day's run:  172 nm -- nm.  
      N 4, Vis. good    
    16.00 CF 2187    
    20.00 CF 2446    
    24.00 CF 2713    
      N 6, Vis. 1-5000 meters, light marine phosphorescence    
                                                           
    01.10.42      
    04.00 CF 2745    
    08.00 CF 5111    
    12.00 CF 4366 Day's run:  172 nm -- nm.  
      N 5, Vis. good    
                                                                
Sun and Moon Data 28.09.42
Sun and Moon Data 29.09.42
Sun and Moon Data 30.09.42
Sun and Moon Data 01.10.42
 
- 7 -
 
           
           
           
    continued      
    01.10.42      
    16.00 CF 4399    
    20.00 CF 4665    
    24.00 CF 4698    
      NE 6. Vis. good, light marine phosphorescence                                                    
         
    02.10.42 East of the Azores    
    04.00 CF 4964    
    08.00 CF 7323    
    12.00 CF 7355 Day's run:  163 nm 4 nm.  
      N 3, Vis. good, light marine phosphorescence    
    16.00 CF 7622    
    20.00 CF 7658    
    24.00 CF 7921    
      N 2, light marine phosphorescence                                                    
         
    03.10.42      
    04.00 CF 7949    
    08.00 DG 3333    
    12.00 DG 3368 Day's run:  166 nm 2 nm.  
      NE 2, Vis. good    
    16.00 DG 3632    
    20.00 DG 3667    
    24.00 DG 3934    
      N 2                                                    
         
    04.10.42      
    04.00 DG 3959    
    08.00 DG 6325    
    12.00 DG 6372 Day's run:  174 nm 2 nm.  
      N 1, Vis. good    
    16.00 DG 6563    
    20.00 DG 6832    
    24.00 DG 6867    
      Wind calm, Vis. good                                                    
         
    05.10.42 West of the Canary Islands    
    04.00 DG 9225    
    08.00 DG 9281    
    12.00 DG 9543 Day's run:  193 nm 3 nm.  
      Wind calm    
    16.00 DG 9528    
    20.00 DG 9848    
    24.00 DT 1328    
      SW 1, light marine phosphorescence                                                    
         
    06.10.42      
    04.00 DT 1384    
    08.00 DT 1654 Switched to Africa Circuit in accordance as ordered.  
    12.00 DT 1916 Day's run:  200 nm 3 nm.  
      WNW 1    
    16.00 DT 1973    
    20.00 DT 4343    
    24.00 DT 4612    
      NW 1, light marine phosphorescence                                                    
Sun and Moon Data 01.10.42
Sun and Moon Data 02.10.42
Sun and Moon Data 03.10.42
Sun and Moon Data 04.10.42
Sun and Moon Data 05.10.42
Sun and Moon Data 06.10.42
 
- 8 -
 
           
           
           
           
    07.10.42      
    04.00 DT 4648    
    08.00 DT 4917    
    12.00 DT 4974 Day's run:  201 nm 3 nm.  
      Wind calm    
    16.00 DT 7266 Incoming Radio Message 12.24 hours:  "On 8 October free to attack east of a line FE 91 lower-left corner to GZ 16 lower-left corner.  Southern border 40°S Eastern border 27°E  
    20.00 DT 7535    
    24.00 DT 7591    
      NE 2, light marine phosphorescence                                                    
         
    08.10.42      
    04.00 DT 7852    
    08.00 DT 7887    
    12.00 EJ 1246 Day's run:  200 nm 1 nm.  
      NE 2, Vis. good    
    16.00 EJ 1515    
    20.00 EJ 1493    
    24.00 EJ 1735    
      NE 3                                                    
         
    09.10.42 West of the Cape Verde Islands    
    04.00 EJ 1794    
    08.00 EJ 4153    
    12.00 EJ 4175 Day's run:  186 nm 1 nm.  
      NE 3, Vis. good    
    16.00 EJ 4441 Incoming Radio Message 12.20 hours:  Effective immediately attack free east of a line FE 8910 - FM 4954-GY 3598.  Southern border 40°S Eastern border 27°E  
    20.00 EH 6696    
    24.00 EH 6965    
      ENE 3, rain showers, light marine phosphorescence                                                    
         
    10.10.42      
    04.00 EH 9331    
    08.00 EJ 7115 Altered course to next control square (ES 50 - 147°)  
    12.00 EJ 7154 Day's run:  158 nm 1 nm.  
      Rain showers    
    16.00 EJ 7197    
    20.00 EJ 7541    
    24.00 EJ 7581    
      NE 2                                                    
         
    11.10.42      
    04.00 EJ 7834    
    08.00 EJ 7947    
    10.30 ES 1316 Lifeboat with two sails in sight at 10000 meters.  Evaded.  
    12.00 ES 1324 Day's run:  182 nm -- nm.  
      E 4    
    16.00 ES 1364    
    20.00 ES 1392    
    24.00 ES 2415    
      E 3, Vis. good, heavy marine phosphorescence                                                    
         
Sun and Moon Data 07.10.42
Sun and Moon Data 08.10.42
Sun and Moon Data 09.10.42
Sun and Moon Data 10.10.42
Sun and Moon Data 11.10.42
 
- 9 -
 
           
           
           
           
    12.10.42 West of Freetown    
    04.00 ES 2458    
    08.00 ES 2498    
    12.00 ES 2841 Day's run:  134 nm 16 nm.  
      SE 1, rain showers    
    16.00 ES 2882    
    24.00 ES 5347    
      SE 2                                                    
         
    13.10.42      
    04.00 ES 5614    
    08.00 ES 5654    
    12.00 ES 5692 Day's run:  155 nm 2 nm.  
      SE 1, rain showers    
    16.00 ES 6712    
    20.00 ES 6751    
    24.00 ES 6884    
      SE 1                                                    
         
    14.10,42      
    04.00 ES 9229    
    07.52 ES 9269 A violent, explosive bang, something like a small aircraft bomb. 
        Examination showed the port regulating and negative buoyancy tanks are leaking.  Also, the flood valve of the negative buoyancy tank no longer closes.  The regulating tank was subject to 10 atmospheres excess pressure.  
        Both cells are now filled to capacity.  By this the boat loses one negative buoyancy tank for crash diving and about 28 tons of flooding water for diving.  
      Intention:  Use a diver in favorable weather to cover the flood valve with a seal, then through the man-hole into the empty, and/or nearly empty negative buoyancy tank and fix the flood valve.  Thus both cells could be used together at least as regulators.  
        3 tons of wash water are pumped overboard to be able to use the regulators more fully.  
    10.17 ES 9371 Test dive.  
    12.00 ES 9375 Day's run:  157 nm 5 nm.  
      SE 1. rain showers    
      Traffic was reported in this sea area on 9 October.    
    16.00 ES 9624    
    20.00 ET 7444    
    24.00 ET 7729    
      SE 2                                                    
         
    15.10.42      
    04.00 ET 7792    
    08.00 FE 1211    
    12.00 FE 1218 Day's run:  173 nm 12 nm.  
      SE 4, Vis. good    
                                                                
Sun and Moon Data 12.10.42
Sun and Moon Data 13.10.42
Sun and Moon Data 14.10.42
Sun and Moon Data 15.10.42
 
- 10 -
 
           
           
           
    continued      
    15.10.42      
    16.00 FE 1285    
    20.00 FE 1238    
    24.00 FE 1671    
      SE 4                                                    
         
    16.10.42 Passed the Equator    
    04.00 FE 1921    
    08.00 FE 1953    
    12.00 FE 1992 Day's run:  153 nm 2 nm.  
      SE 4 Masch.Ob.Gfrt. Mehlig dived to the flood valve of the negative buoyancy tank with an emergency escape device, to take measurements for the leak seal.  
    20.00 FE 5146    
    24.00 FE 5188    
      SE 4                                                    
         
    17.10.42      
    04.00 FE 5437    
    08.00 FE 5571    
    12.00 FE 5816 Day's run:  146 nm 3 nm.  
      SE 2    
    16.00 FE 5855    
    20.00 FE 5891    
    24.00 FE 8315 Boat maintained course 147° which passes between Ascension and Saint Helena, cuts the Great Circle between Cape Town and New York with slight angle and which touches squares, in which traffic was observed on 1 October.  
      SE 2  
                                                           
    18.10.42    
    04.00 FE 8358    
    08.00 FE 8631    
    12.00 FE 9444 Day's run:  159 nm 2 nm.  
      SE 3, medium swell    
    16.00 FE 9479    
    20.00 FE 9728    
    24.00 FE 9792    
      SE 2, Vis. good                                                    
         
    19.10.42 East of Ascension    
    04.00 FM 2214    
    08.00 FM 2257    
    12.00 FM 2297 Day's run:  143 nm -- nm.  
      SE 3, rain showers    
    16.00 FM 2563    
    20.00 FM 2675    
    24.00 FM 2928    
      SE 4                                                    
           
                                                                
Sun and Moon Data 15.10.42
Sun and Moon Data 16.10.42
Sun and Moon Data 17.10.42
Sun and Moon Data 18.10.42
Sun and Moon Data 19.10.42
 
- 11 -
 
           
           
           
           
    20.10.42      
    04.00 FM 2991    
    08.00 FM 5333    
    12.00 FM 6145 Day's run:  154 nm 2 nm.  
      SE 4    
    16.00 FM 6185    
    20.00 6434 Incoming Radio Message 18.04 hours:  says that the operations area is extended from Cape Town to Lourenco Marques (" ... to KP 53") approximately 500-600 nm wide strip along the coast, southern limit 40°S.  
    24.00 FM 6547    
      SE 3                                                    
         
    21.10.42      
    04.00 FM 6579    
    08.00 FM 6852    
    12.00 FM 6895 Day's run:  158 nm 2 nm.  
      SE 3    
    16.00 FM 9341    
    20.00 FM 9376    
    24.00 FM 9628    
      SE 3, Vis. good                                                    
         
    22.10.42      
    04.00 FM 9691    
    08.00 FM 9936    
    12.00 FN 7745 Day's run:  162 nm -- nm.  
      SE 3, squally    
    16.00 FN 7788    
    20.00 FU 1161    
    24.00 FU 1196    
      ESE 2                                                    
         
    23.10.42 West of St. Helena    
    04.00 FU 1515    
    08.00 FU 1555    
    12.00 FU 1598 Day's run:  148 nm 4 nm.  
      SE 4, long swells    
    16.00 FU 1839    
    20.00 FU 1948    
    24.00 FU 4322    
      ESE 3                                                    
         
    24.10.42      
    04.00 FU 4364    
    08.00 FU 4399    
    12.00 FU 5424 Day's run:  147 nm 3 nm.  
      SE 4    
    16.00 FU 5458    
    20.00 FU 5731    
    24.00 FU 5844    
      ESE 3                                                    
Sun and Moon Data 20.10.42
Sun and Moon Data 21.10.42
Sun and Moon Data 22.10.42
Sun and Moon Data 23.10.42
Sun and Moon Data 24.10.42
 
- 12 -
 
           
           
           
           
    25.10.42      
    04.00 FU 5875    
    08.00 FU 8228    
    12.00 FU 8371 Day's run:  158 nm 2 nm.  
      SE 2    
    16.00 FU 8613    
    20.00 FU 8655    
    24.00 FU 8698    
      SE 2                                                    
         
    26.10.42      
    00.49   Radio Message 22.48 hours of 24 October:  from "U-590" radio repeater repeats.  "U-590" is off Freetown and is approximately 2000 nm nearer the homeland than us.  
    04.00 FU 9742    
    08.00 FU 9782    
    12.00 GG 1131 Day's run:  148 nm 2 nm.  
      SE 3    
    16.00 GG 1244    
    20.00 GG 1513    
    24.00 GG 1556    
      SE 2                                                    
         
    27.10.42      
    04.00 GG 1833    
    08.00 GG 1946    
    12.00 GG 1989 Day's run:  186 nm -- nm.  
      SE 4    
    16.00 GG 4365    
    20.00 GG 5175    
    24.00 GG 5427 The boat has had almost entirely good visibility from passing the Azores up to now.  
      SE 2  
                                                           
    28.10.42      
    04.00 GG 5459    
    08.00 GG 5811    
    12.00 GG 5855 Day's run:  159 nm 1 nm.  
      SE 2    
    16.00 GG 5891 From 13.00-18.00 hours the negative buoyancy tank is examined.  Masch.Ob.Gfr. Mehlig dives and caulks in almost one-hour's work the outboard side of the flood valve (with sailcloth).  Ob.Masch. Walbröl and the Masch.Mt. Linka pass through the manhole into the tank, dive with emergency escape device up to the flood valve (the cell had been emptied shortly before the final closing of the flood valve from outboard.) and fix it tightly from the inside.  
      SE 1, Vis. good  
        The wall to the regulating tank had been pressed in 1.5 meters into the negative buoyancy tank and had wrenched off the linkage of the flood valve.  
        Following a test dive:  the flood valve stays closed.  Now the regulating and negative buoyancy tank can be used together as a regulator.  
           
                                                                
Sun and Moon Data 25.10.42
Sun and Moon Data 26.10.42
Sun and Moon Data 27.10.42
Sun and Moon Data 28.10.42
 
- 13 -
 
           
           
           
    continued      
    28.10.42      
    20.00 GG 5895    
    24.00 GG 8314    
      SSE 1                                                    
         
    29.10.42      
    04.00 GG 8381    
    08.00 GG 8631    
    12.00 GG 9444 Day's run:  131 nm 2 nm.  
      SE 3    
    16.00 GG 9479    
    20.00 GG 9753    
    24.00 GG 9799    
      SE 3, light marine phosphorescence                                                    
         
    30.10.42      
    04.00 GQ 1263    
    08.00 GQ 1376    
    12.00 GQ 1629 Day's run:  176 nm 2 nm.  
      SE 1 Incoming Radio Message 10.34 hours:  "Free to maneuver east of the Longitude of Cape Town within the whole assigned area ... "  
        Change of course towards the sea area off Cape Town in the direction of the recently reported traffic.  
      Intentions:  Advance past Cape Town towards East London, Durban or Lourenco-Marques, according to messages from "U 178".  
    16.00 GQ 2447    
    20.00 GQ 2488    
    24.00 GQ 2736    
      SE 2                                                    
         
    31.10.42      
    04.00 GQ 2854    
    08.00 GQ 2895    
    12.00 GQ 5313 Day's run:  170 nm 3 nm.  
      SE 1    
    16.00 GQ 5353    
    20.00 GQ 6171    
    24.00 GQ 6422    
      SW 1, light marine phosphorescence                                                    
         
    01.11.42      
    04.00 GQ 6473    
    08.00 GQ 6581    
    12.00 GQ 6597 Day's run:  181 nm 4 nm.  
      WSW 1    
    16.00 GQ 6918    
    20.00 GQ 6967    
    24.00 GR 4747 Changing from German Summer Time [Central European Summer Time - GMT +2] to M.E.Z. [Central European Time - GMT +1] tonight.  
      W 1  
                                                           
    02.11.42      
    M.E.Z.      
    04.00 GR 7175                                                         
           
Sun and Moon Data 28.10.42
Sun and Moon Data 29.10.42
Sun and Moon Data 30.10.42
Sun and Moon Data 31.10.42
Sun and Moon Data 01.11.42
Sun and Moon Data 02.11.42
 
- 14 -
 
           
           
           
    continued      
    02.11.42      
    08.00 GR 7166    
    12.00 GR 7255 Day's run:  196 nm 4 nm.  
      SW 1 Proceeding closer to Cape Town on an easterly course.  
    16.00 GR 7345    
    20.00 GR 7365    
    24.00 GR 8146    
      SW 1, light marine phosphorescence                                                    
         
    03.11.42 Southwest of Cape Town    
    04.00 GR 8191 Steamer on southwestern course in sight bearing 50°T.  Maneuvered ahead at high speed.  
      SE 2, Vis. good, moonshine, dawn  
    04.47 Twilight approached so quickly that boat cannot gain any more distance ahead and had to dive so as not to be sighted. Steamer is at target angle 20° and at 14000 meters.  Committed to the attack.  
    05.48 GR 8183 Miss with 2 G7e, range = 2500 meters, target speed 10 knots, target angle 100°.  
        Steamer zigzagged heavily shortly before the shot.  It was unfavorable to shoot at this great distance, because the firing data was too uncertain.  
    06.44   Surfaced, pursued, maneuvered ahead.  
    08.00 GR 8179    
    12.00 GR 7654 Day's run:  191 nm 8 nm.  
      SW 1, Vis. good    
    15.25 GR 7835 Dived for the attack.  Steamer on a general course of 225°.  
      SW 1    
    16.20 GR 7835 Double shot with 2 G7e, 1600 meters, target speed 12.5 knots, target angle 80°.  (The distance was so large again, because the steamer zigzagged 80° several minutes before the shot.)  
        2 hits after 1 minute 45 seconds and 1 minute 51 seconds amidships and in the stern.  High white water column.  Ship sank over the stern in 4 minutes.  
    16.38   Surfaced.  
        The shipwrecked sit in a lifeboat and 3 rafts which, had hung in the shrouds, and slipped free with the sinking of the steamer .  
        The Second Officer provides information that the captain was drowned.  It was the American steamer "EAST INDIAN", 8159 GRT with manganese ore from India.  Route: Mozambique channel, 100 nm off the South African coast to Cape Town there water and oil taken on and instructions received to proceed 500 nm to the SW and then to head for the South American coast to Trinidad, then continuing to New York.  
        The masthead was not occupied by a lookout.  There was no time to transmit.  
        The American had a confident attitude and bade us farewell with a friendly "good luck"!  
    20.00 GR 7677 3 overdeck torpedoes unloaded.  
      SE 1, dark clear night Afterwards a test dive.  
    24.00 GR 7645    
      SE 1                                                    
                                                                
Sun and Moon Data 02.11.42
Sun and Moon Data 03.11.42
 
- 15 -
 
           
           
           
           
    04.11.42      
    04.00 GR 7933    
    08.00 GR 8752    
    12.00 GR 8872 Day's run:  207 nm 5 nm.  
      WSW 1    
    16.00 GR 8889    
    20.36 GR 8977 Sent Radio Message 20.13 hours:  "3 November sank "EAST INDIAN" in naval square GR 7815, did not transmit.  Ore from India via naval square KE (Mozambique Channel) to New York.  Ordered from GR 56 (= CapeTown):  500 nm SW-course, then Trinidad.  Can hardly hear hear wavelength "i p" by day.  Very low frequency often heavily distorted.  270 cbm, position 8979"  
        Advancing to the east on 38°S in order to be pushed a little bit by the current which runs only to the east down here.  
    24.00 GR 8987    
      SW 4, medium marine phosphorescence                                                    
         
    05.11.42      
    04.00 GR 8998    
    08.00 GR 9778    
    12.00 GR 9788 Day's run:  132 nm 4 nm.  
    16.00 GR 9792    
    20.00 GR 9873    
    24.00 GR 9867    
      S 2, Vis. good                                                    
         
    06.11.42      
    04.00 GR 9949    
    08.00 GR 9967    
    12.00 KY 8649 Day's run:  160 nm 1 nm.  
      S 1    
    16.00 KY 8684    
    20.00 KY 9443    
    24.00 KY 9461    
      E 1, medium marine phosphorescence                                                    
         
    07.11.42      
    04.00 KY 9515    
    08.00 KY 9536    
    12.00 KY 9621 Day's run:  169 nm 4 nm.  
      NE 5    
    16.00 KY 9389    
    20.00 KZ 7178    
    24.00 KZ 7128 Tomorrow will head to East London in the area on northerly course.  
      SW 1, medium marine phosphorescence and heat lightening  
                                                         
    08.11.42 Southeast of Port Elizabeth    
    04.00 KZ 7165    
      SW 5    
    04.45 KZ 7211 Steamer in sight to the north on westerly course.  Maneuvered ahead.  
      Vis. medium, late dawn  
                                                                
Sun and Moon Data 04.11.42
Sun and Moon Data 05.11.42
Sun and Moon Data 06.11.42
Sun and Moon Data 07.11.42
Sun and Moon Data 08.11.42
 
- 16 -
 
           
           
           
    continued      
    08.11.42      
    08.15 KZ 4773 Dived for attack, general course 280°.  
      SW 7, Sea 6, 1017 mb Miss on 6000 tonner, range = 1800 meters (2 G7e), target speed  = 11 knots, target angle 90°.  Steamer ran perhaps a bit slower at the moment of the shot, also just at the shot it appeared to zigzag, could not be observed further due to the under-running of the periscope.  Depth-keeping was greatly complicated by the rough sea.  At 14.5 meters submerged depth nothing could be seen in the periscope, however, at 14.0 meters depth the boat threatened to break the surface of the water, so that once even the negative buoyancy tank had to be flooded to hold the boat under water.   
        If the periscope were only a meter longer, depth-keeping could still be maintained in sea state 6 and corresponding swells.  
        But also with bigger diving planes the boat could be held at depth more easily.  
        With the boat down by the bow the effect is very much greater, the long upper deck is so large that the small diving planes cannot counteract quickly enough.  
    10.40 SW 8, Sea 6-7, squally Surfaced and gave chase after torpedoes were reloaded under water.  
    12.00 KZ 4778 Day's run:  170 nm 10 nm.  
      SW 8, Sea 7, rain showers    
    16.00 KY 6983 Boat is positioned abeam the steamer, on general course 290° heading straight across the Alguhas Bank to Cape Alguhas.  
      SW 7, Sea 6, long high swells  
    20.13 KY 6982 Miss with a G7a, range = 800 meters, target speed 11 knots, target angle 90°.  Torpedo seems to have passed ahead.  New attack begun.  
      SW 5, dark, long high swells  
    20.55 KY 6982 Shot with a G7a, range = 1000 meters, target speed 9.5 meters, target angle 80°.  
      SW 4, long medium-high swell  
        Hit after 40 seconds in the stern with a loud bang and erupting fireworks.  The cargo seems to consist of grain.  The stern settled little bit deeper, however, ship did not sink. The crew took to the boats.  
    22.05 SW 4, long medium-high swells Artillery Ready!  Steamer will be sunk with the 10.5 cm cannon.  
        Boat begins at KF into the sea and closely to the stern abeam the stopped steamer.  
        After 2 approaches and 8 hits in the stern the ship sinks over the stern.  With every change of course or speed the gun crew came to the bridge because the danger of being washed overboard was too great.  
        Appearance of the steamer possibly like type "CASTLEMOOR" with 6 cargo hatches and a pair of king posts just ahead of the raised stern. Size estimated at 6000 GRT.  
        Subsequent search for the lifeboats to find out the ship name was unsuccessful.  
        Set off to the east to take advantage of the current.  
    24.00 KY 6959    
      SW 4                                                    
Sun and Moon Data 08.11.42
 
- 17 -
 
           
           
           
           
    09.11.42      
    00.25   Because boat is leaving this sea area anyway,  
        Sent Radio Message 23.34 hours:  ". . . 6000 tonner sunk, 280°, 250 cbm."  
    04.00 KZ 4723    
    08.00 KZ 4814    
    12.00 KZ 4828 Day's run:  205 nm 3 nm.  
      S 4    
    16.00 KZ 4582    
    20.00 KZ 4525    
    23.45 KZ 4257 Steamer in sight to the east on a southeastern course.  Maneuvering ahead.  
      S 1, Vis. good  
                                                           
    10.11.42 150 nm southeast of East London  
    02.03 KZ 4298 Miss with a G7a, range = 800 meters, target speed = 11 knots, target angle 80°.  
        The shot, which seemed sure given the short distance, went past inexplicably.  Initiated a new attack.  
    02.42 Dawn is breaking Boat initiated a stern approach  With dawn breaking faster than expected, together with the disappearance of the protective cloud wall ahead, the boat was seen at 300 meters.  The steamer, which had target angle 30° now began to turn away to starboard.  
        Boat shot 2 stern torpedoes from 400 meters with target speed 9.5 knots and target angles 40 and 100° and aim points center and after ship.  
        Shots should absolutely still have hit, but the steamer also seemed to stop briefly, so both torpedoes missed.  
        Steamer shows his stern to the boat and runs off.  We also ran off with an angled course to give the steamer a false sense of security.  Again maneuvered ahead at the limit of visibility.  The enemy ran off up to complete daylight for approximately one hour on a SW-course and then turned again on his old SE-course.  
    03.27 KZ 4533    
      SSW 2, long swells The steamer transmited a U-boat warning report, which was repeated by the radio station at Walfish Bay.  Boat tried to interfere in vain.  The call sign of the steamer is evidently encoded (bnjz).  
    07.30 KZ 4681 Dived for attack.  
      Vis. good    
    08.27   Shot with G7e, range = 600 meters, target sped 10 knots, target angle 70°.  
        Hit after 40 seconds in the stern.  
        Steamer sank in 9 minutes.  Rod aerial was immediately extended after the hit, but no transmission was detected on 600 meters.  
    08.40   Surfaced.  
        The Norwegian Captain if gives only little information, a young English ship's officer answers the most:  Norwegian steamboat "K.G. MELDAHL" year of construction 1938, 3799 GRT with piece goods including aircraft from New York via Cape Town to Bombay.  The SE course should be steered to 200 nm off the coast.  
           
                                                                
Sun and Moon Data 09.11.42
Sun and Moon Data 10.11.42
 
- 18 -
 
           
           
           
    continued      
    10.11.42   A fuselage floats on the water.  Ran off to the south, then to the SE.  
    12.00 KZ 4683 Day's run:  216 nm 4 nm.  
      SE 1, Vis. good    
    16.00 KZ 5472 Remaining 9 upper deck torpedoes are reloaded in the boat (3 in the Stern Room and 6 in the Bow Room).  The boat ran with both E-motors KF into the sea.  
      SSE 3, long low swells, cloudy  
    20.00 KZ 5479    
      SSE 2    
    24.00 KZ 5721    
      SSE 1                                                    
         
    11.11.42      
    00.11 KZ 5721 Torpedo loading ended.  Boat again ready.  
        Test dive.  
        Continued advance to the north towards Durban.  
    04.00 KZ 5457    
    08.00 KZ 5179    
    12.00 KZ 5143 Day's run:  158 nm 2 nm.  
      NE 4    
    16.00 KZ 2775    
    20.00 KZ 2742    
    24.00 KZ 2477    
      E 4, heavy marine phosphorescence                                                    
         
    12.11.42 130 nm Northeast of New London  
    04.00 KZ 2447    
    08.00 KZ 2417    
      E 6    
    10.47 KZ 2411 Boat dove to A -40 meters not to use so much fuel while driving against the sea, also the visibility is bad.  
      E 7, rain showers  
    12.00 KZ 2177 Day's run:  138 nm 5 nm.  
    13.40   Sound bearing to the west.  Boats came to periscope depth, however, nothing was seen.  
    13.50 KZ 2177 Surfaced.  Large steamer in sight bearing 245°.   Range = 10000 meters, course along the coast to the SW.  
      NNE 7, Vis. moderate  
    13.51   Dived, not to be seen.  
    14.14   Surfaced.  Steamer located.  
    14.16   Dove again.  
    14.31   Surfaced, began to maneuver ahead.  
    16.00 KZ 1632    
      NE 5    
    20.00 KZ 1679 Steamer had already set navigation lights in the twilight.  Now boat is positioned abeam at 600 meters distance.  
      E 3, darkness  
        Portuguese steamer "MOUZINHO" 8374 GRT recognized, he is marked correctly as a neutral.  Unfortunately, for this useless hunt the boat has wasted 3 cbm of fuel.  
        Northern advance continued.  
    24.00 KZ 1681                                                    
         
    13.11.42 65 nm northeast of East London  
    03.35 KZ 1656 Steamer in sight to the south on SW-course.  
      Dawn Maneuvered ahead.  
                                                                
Sun and Moon Data 10.11.42
Sun and Moon Data 11.11.42
Sun and Moon Data 12.11.42
Sun and Moon Data 13.11.42
 
- 19 -
 
           
           
           
    continued      
    13.11.42      
    07.00 KZ 1914 Dived for attack.  
      ENE 3    
    08.00   Shot with a G7e, range = 1000 meters, target speed 9.5 knots, target angle 80°.  
        Hit after 65 seconds in the stern.  2 loud detonations were heard. Steamer sank after 13 minutes over the stern.  
    08.15   Surfaced.  
        By asking a ship's officer in one of the 3 lifeboats determined:  
        American steamer "EXCELLO", previously named "EXAMINER", 4969 GRT, from Suez to Capetown 35 nm off the coast.  
        Departed to the SE, then advanced to the north towards Durban.  
    12.00 KZ 2472 Day's run:  202 nm 11 nm.  
      ENE 3, Vis. moderate    
    16.00 KZ 2448    
      SSW 5    
    20.00 KZ 2511    
    21.35   Per orders Radio Message 21.28 hours delivered with sinking reports for "K.G. MELDAHL" and "EXCELLO", still 225 cbm.  
    24.00 KZ 2193 Changed course towards the coast to carry out a significant change of course and position after delivery of the radio message.  Also at the same time the traffic just off the coast must be observed anyway.  
      SSW 3  
                                                           
    14.11.42 Coast between Port Shepstone and Durban 6 miles distant.  
    04.00 KZ 2154    
      SSW 3    
    06.29   Steamer in sight just off the coast.  Matching speed failed because the boat was still beyond the 200-meter line and has the Alguhas current against it, while the steamer, just off the coast has up to half a knot of  following current.  This results in a speed differential of 3-5 knots for us.  
    08.00 KP 8787    
      SSW 3, Vis. good    
    09.18   Gave up matching speed, after the steamer was made out to be only about 500 GRT and the boat barely made headway against the steamer  
      Intention: just off shore at the height of Shepstone dived to explore the traffic.  
        Boat dived and closed the coast.  
    10.20   Sound bearing to the west.  
    11.00   Steamer in the periscope off Port Shepstone.  
        Boat has crossed the 200-meter line, which runs close off shore here.  
    11.30   Steamer recognized as an old steam trawler which serves evidently as an escort (200 GRT).  When he turns on a SW course, we come to 40° along the coast to Durban.  
    12.00 KP 8775 Day's run:  133 nm 24 nm.  
    16.00 KP 8784    
    18.15 KP 8781 Surfaced.  
        The beacons on the coast are extinguished.  Port Shepstone is illuminated brightly.  Boat runs off on 80° because the horizon is so dark just off the coast that surprise by patrol vessels is possible.  
                                                                
Sun and Moon Data 13.11.42
Sun and Moon Data 14.11.42
 
- 20 -
 
           
           
           
    continued      
    14.11.42      
    20.00 KP 8758 Incoming Radio Message, the FÜHRER has awarded the Kommandant the Oak Leaves to the Knight's Cross of the Iron Cross.  
    24.00 KP 8847    
      SE 1                                                    
         
    15.11.42 50 nm Southeast of Durban    
    03.35 KP 8843 Dived for a land-based aircraft.  
      Sunrise    
    04.45   Surfaced.  
    05.22 KP 8827 Aircraft to the north, the boat remained on the surface, was not sighted.  
    07.36 KP 8828 Destroyer in sight in the NW at 7000 meters, target angle 0°.  
      SE 2, Vis. 6-9000 meters Crash dive to A +40 meters.  
        The decoy launcher is made ready; however, the decoy cannot be expelled, because the outer cap cannot be opened.  The decoy was already wet and emitting caustic gases.  The launcher itself was very hot.  Through the opened flooding valves the gases constantly flowed out overboard and might give the enemy a good clue for the search.  
    08.40   Boat steered on southerly courses.  All auxiliary motors except the gyroscope and sound locator were secured.  
                6 closely placed depth charges.  
        Boat went to depth A +60 meters.  
    09.10           10 very closely placed depth charges.  
        Boat went to depth A +80 meters at KF.  
    09.30   Succeeded in removing the blockage of the outer cap of the decoy launcher and in expelling the decoy properly.  
      An Officer-only  Radio Message, only recently arrived, warned in advance of late launching as, "danger for the boat" would exist.  Because details were absent, it is accepted, that  
              1)  long treacherous gas trails were emitted from the boat and  
              2)  poisonous gases can flow out into in the boat and  
              3)  the decoy launcher can fly apart from excess pressure.  
    09.50           8 closely placed depth charges.  
        Boat rattles strongly, whenever the starboard shaft makes more than 70 RPM.  
    10.35           8 closely placed depth charges.  
        The decoy launcher is ready again.  However, only one decoy could be expelled because afterwards the outer cap would no longer close.  
    10.40   The decoy launcher is suddenly ready again after constant opening and closing of the outer cap.  
        Three times decoys were expelled while turning to port, then the outer cap was stuck again.  
    10.55   Two times sounds are heard, as if the enemy is using Echolot depth sounding.  
        All sailors off watch breath by potash cartridges with the new good mouth pieces with which one can breath through the nose and mouth at the same time.  
                                                                
Sun and Moon Data 14.11.42
Sun and Moon Data 15.11.42
 
- 21 -
 
           
           
           
    continued      
    15.11.42      
    11.10 KP 8858         6 closely placed depth charges.  
        Boat descended to depth A +95 meters.  Unpleasant cracks and crackling audible in the boat.  Moved higher again at HF.  
    11.30   Sounds heard twice, as at 10.55 hours.  
      Because Durban is nearby, the boat prepares for the fact that the depth charge pursuit can last "to exhaustion".  2 destroyers heard.  
    11.55           8 closely placed depth charges.  
        Up to now only small failures have appeared.  However, the construction hatch in the Petty Officer's Room leaks very heavily, so that approximately 200-300 liters per hour enter the boat.  Besides, the battery automatic switch threatens to fail.  2 sailors hold the space with bailer and mop.  
        Day's run:  70 nm 30 nm.  
    12.05 - 12.15   Decoy launcher ready again.  Five times decoys were expelled while turning to port.  At the same time gyro compass and sound locator are secured, because the centrifugal pump and the sound gear transformer are unpleasantly loud. Also general course is changed from south to SE.  
      Boat has no more water in the regulating tank to pump, because more than 7 tons have already been pumped out.   Now compressed air is channeled from the port regulating tank to regulating tank which is connected with the negative buoyancy tank with a loud din.  However so much air is lost that the pressure is only sufficient with the addition of the main bilge pump.  New compressed air is not added, in order to save air.  
        At the same time the starboard regulating fuel oil tank was prepared for service as the next regulating tank: water from the torpedo tank is channeled into this tank and all bilges are pumped out with hand bilge pump into it.  
        With the main bilge pump the boat is kept light enough that it can be held with an E-motor at KF.  
    15.30   Because the boat had peace up to now with the destroyers, the sound locator and the gyroscope are again turned on.  
    16.30 KP 8865 Went slowly to depth A meters.  
        Propeller sounds in the sound locator.  
        Boat goes again to depth A +40 meters at KF.  
    16.50   Boat was over run by a destroyer.  
    17.10           4 closely placed depth charges.  
        Sound locator secured again and this time however, only the coolant pump of the gyro compass which can run for a time without it.  
    17.25   Electrolot-like sounds heard twice.  Boat is again at depth A +80 meters.  
    17.30           6 distant depth charges.  
    17.55           3 far distant depth charges.  
      It seems, as if the first nearby depth charges were happenstance.  
    20.00 KP 8886 Sound locator briefly turned on: destroyer still heard.  
    22.00   Sound locator turned on.  Nothing heard.  
      Boat wants to surface at about 23.00 hours because the moon still shines brightly until 24.00 hours.  
                                                                
Sun and Moon Data 15.11.42
 
- 22 -
 
           
           
           
    continued      
    15.11.42      
    23.30 KZ 2226 Surfaced.  
      SSW 5, Vis. good, moonlit Ran off to the east.  
      The boat still has 135 kgs of air, still plentifully 6000 Ampere Hours, still have 12 tons of water to pump for disposal in regulating bunkers and cells, in addition still 5 tons of drinking water and wash water, partly in the torpedo compensating tanks.  
              Up to now 15 tons have been pumped in a dive of 16 hours.  The air in the boat was still so good that all sailors that had to work, needed no potash cartridges.  
              Boat would not have endured because of exhaustion of the battery any longer than 30 hours sound and depth charge pursuit.  Besides, air could not be used to pump because, otherwise, the compressed air supply would not last.  
              The decoy launcher evidently worked well, but only when five decoys were expelled in a row.  It is probable that more decoys must be expelled for the particularly big boat, than are generally prescribed.  
              The boat and crew proved themselves well.  
                                                           
    16.11.42    
    03.32 KZ 2344 Test dive shortly after dawn.  
      SSW 5, dawn    
    08.00 KZ 2346    
    12.00 KZ 2355 Day's run:  40 nm 38 nm.  
    16.00 KZ 2391    
    20.00 KZ 3171    
    24.00 KZ 3151    
      S 3, Vis. good                                                    
         
    17.11.42      
    04.00 KZ 3153    
    08.00 KZ 3137 After the depth charge pursuit the battery installation hatch leaks a lot of water into the boat even at periscope depth.  All the bolts are loose, so that they can be moved by hand, one has broken off.  
      S 1  
        Boats were tightened firmly, a new one as put in.  
    12.00 KZ 3211 Day's run:  152 nm 1 nm.  
      ESE 1 Boat has 220 cbm, it has used half of its fuel and has covered:   10269 nm 369 nm in 66 days at sea.  
    16.00 KP 9878 Advance to the sea area off Lourenco-Marques.  
      Off Lourenco "U-178" sank two steamers on 4th of November and has since left this sea area and is now in the area off Durban. "U-177" must now be at the level of Port Elizabeth.  
    20.00 KP 9579    
    24.00 KP 9527    
      S1                                                    
         
    18.11.42      
    04.00 KP 9257    
    08.00 KP 9225    
                                                                
Sun and Moon Data 15.11.42
Sun and Moon Data 16.11.42
Sun and Moon Data 17.11.42
Sun and Moon Data 18.11.42
 
- 23 -
 
           
           
           
    continued      
    18.11.42      
    12.00 KP 6855 Day's run:  178 nm 2 nm.  
      NE 3    
    16.00 KP 6815    
    20.00 KP 6499    
    24.00 KP 6464    
      NE 4                                                    
         
    19.11.42 Sea area off Lourenco-Marques  
    04.00 KP 6424    
    08.00 KP 6171    
    12.00 KP 5362 Day's run:  160 nm 1 nm.  
      NE 3    
    16.00 KP 5333    
    19.55 KP 5327 Steamer in sight bearing 240° on course 80°.  
      NE 3, moonlit He is positioned close under the Inhaca lighthouse.  
    20.55 KP 5324 Dived for attack.  
    21.25 KP 5324 Shot with a G7a, range = 400 meters, target speed 8 knots, target angle  = 80°.  
        Lead computing arrangement had failed shortly before the shot.  Established the lead at the periscope.  
        Hit after 18 seconds forward.  
        Ship sinks in a few minutes.  
        Estimated size 2000 GRT, 4 loading hatches.  
    21.18   Surfaced.  
        Demanded the name of the ship from some shipwrecked on rescue rafts.  Because these were mostly non-whites, no communication reached.  
        Set off towards land.  
    23.20 KP 5324 Steamer in sight bearing 350° on course 50°.  
      NE 2 He is also positioned close under the lighthouse Inhaca.  The shipwrecked of the 2000-tonner are being taken over party by a brightly illuminated Portuguese steamer.  He interferes now with matching speed.  
                                                           
    20.11.42    
    00.46 KP 5321 Dived for attack.  
      Bright moonlight    
    01.24 KP 5322 Shot with a G7a, range = 450 meters, target speed = 8.5, target angle 80°.  
        Hit after 23 seconds in the stern.  
        Ship sank in a few minutes.  
    01.29   Surfaced.  
        2 lifeboats in sight, they are afraid to have us come within earshot. Therefore, we pulled a drowning man from the water and hand him over to one of the boats.  In this way it was learned that the steamer was the Greek "Corinthiakos", 3562 GRT, which had been on the way to Aden with a cargo of oil.  
    04.03 KP 5325 Dove to fill up the battery and work on the lead computing installation.  
    08.00 KP 5328    
    10.35   Surfaced.  The coast is made out clearly.  
    12.00 KP 5328 Day's run:  123 nm 12 nm.  
      Vis. good    
                                                                
Sun and Moon Data 18.11.42
Sun and Moon Data 19.11.42
Sun and Moon Data 20.11.42
 
- 24 -
 
           
           
           
    continued      
    20.11.42      
    12.15   Boat approaches a rescue raft in which 3 exhausted Indians sit, intending to ask for the name of the 2000-tonner when a steamer comes in sight in 350°T, course 250° for Lourenco.  
        Boat came to course to the Inhaca lighthouse at high speed. However, the bearing hardly gains because the boat on a northerly course must go against the current.  
    12.50   Dived, to try and get as far as possible under water.  Surface travel is impossible because of the proximity to land.  
    13.30   Attack broken off.  
    14.40   Boat is positioned directly off the southern entrance to the harbor.  
        An aircraft is observed in the periscope.  
    16.00 KP 5328 Boat ran submerged off from the coast where the strong current complicates remaining in position.  
    17.48   Surfaced.  
        Steaming back and forth positioned on the departure courses of previous steamers.  
    20.00 KP 5324    
    22.05   Steamer in sight in the southern passage just off the Inhaca lighthouse.  Evidently he has anchored.  Perhaps departure is closed.  
    24.00 KP 5324    
      NE 2, bright moonlight                                                    
         
    21.11.42      
    03.09 KP 5315 Incoming steamer in sight to the NE.  
      Dawn    
    03.24   Dove to attack.  
    04.10 KP 5315  4 nm northeast of Inhaca Miss with a G7e from stern tube, range = 500 meters, target speed 8.5 knots, target angle 80°, depth 2 meters.  
        Steamer of type "BERESINA", 3000 GRT, traveling in ballast.  Accepted that the torpedo ran past under the stern of the ship, because the speed was at most 1/2 knot higher and at the short range in a parallax error of 3° would only shift the shot approximately 25 meters aft.  
        Steamer escaped into the south port entrance.  The boat ran off submerged.  
    07.20 KP 5324 Surfaced.  
    08.35   Steamer in sight to the north on incoming course.  Maneuver ahead is difficult because of the proximity of land.  
    09.35   Dove to attack.  
        The boat can only reach shooting position if the steamer takes a course to the southern entrance to the port.  However, apparently is goes to the middle entrance.  In the periscope he is made out as a Portuguese passenger steamer of approximately 3000 GRT.  
        Ran off submerged.  
    12.00 KP 5321 Day's run:  86 nm 17 nm.  
    13.05   Surfaced.  
    14.20 KP 5321 Steamer in sight in the SE entrance.  
        Maneuver ahead fails.  
    14.30   Crash dive for aircraft.  
           
                                                                
Sun and Moon Data 20.11.42
Sun and Moon Data 21.11.42
 
- 25 -
 
           
           
           
    continued      
    21.11.42   Boat operated just off the southern entrance.  
    17.46 KP 5322 Surfaced.  
      Twilight Back and forth positioned close offshore on the northeastern departure course.  
    22.06 KP 5316 Steamer in sight to the east on a southerly course and a second smaller steamer to the NE with an incoming course.  Operating on the first steamer.  He is bigger and cannot disappear so quickly into the harbor.  
      NE 1, bright moonlit night  
                                                           
    22.11.42    
    00.27   Dived for attack.  
    00.33 KP 5372 Shot with a G7a, range = 500 meters, target speed 13 knots, target angle 80°.  
      Bright moonlit night  
        Hit after 27 seconds just aft of amidships.  Steamer sank in 4 minutes over the stern.  
    00.38   Surfaced.  
        From the statements of the shipwrecked, it was the American "ALCOA PATHFINDER", 6900 GRT, year of construction 1942 from Beira to Cape Town.  
        Departed to the north.  
    04.43 KP 5355 Incoming steamer in sight to the north.  
        Ran to the southern entrance at high speed.  
    05.56 KP 5354 Crash dive for aircraft.  
      NE 1 Submerged, against the current, the boat does not get near enough to attack.  
        Departed to the NE.  
    08.00 KP 5355    
    12.00 KP 5364 Day's run:  120 nm 19 nm.  
    13.24   Surfaced.  
        Back and forth, positioned on the northeastern approach course.  
      The north border of the operations area lies too near the harbor to operate on incoming traffic, no time remains to match speed and maneuver ahead.  
    16.00 KP 5329    
    20.00 KP 5325 With darkness the boat moves just off the Inhaca lighthouse.  
    24.00 KP 5324    
      NE 1                                                    
         
    23.11.42      
    03.00 KP 5313 Incoming steamer in sight to the south, along the coast.  Ran to the southern entrance at high speed.  
      Dawn  
    03.21   Dived because of the proximity to land, ran at high speed submerged.  
    04.00 2 nm northeast of Inhaca Boat is inside Portuguese territory.  The steamer has target angle = 80°, range = 2500 meters and steers a few hundred meters from shore for the pilot vessel.  
           
                                                                
Sun and Moon Data 21.11.42
Sun and Moon Data 22.11.42
Sun and Moon Data 23.11.42
 
- 26 -
 
           
           
           
    continued      
    23.11.42   Attack broken off.  Rationale:  
        1)  Steamer is well within neutral territory and on top of that in a port entrance and near the pilot.  
        2)  After a hit the steamer could still have settled on the bottom.  
        3)  The shot is uncertain because the distance is large and the ship is traveling in ballast.  
        4)  By running poorly the torpedo might detonate on land and betray the boat needlessly.  
        On 20 November in the evening in the entrance a steamer lying at anchor was identified as a wreck sitting on the beach to the north of Inhaca.  
        Size about 5000 GRT.  
     
Intention:  During the next days operate on the direct traffic from Mozambique Strait to Durban-Cape Town, so further to the east.
  Here, for days no ships have departed and the inbound ones are difficult to reach so shortly before the harbor, particularly as aircraft fly reconnaissance here.
 
    08.00 KP 5316    
    09.55 KP 5324 Surfaced and ran off to the east.  
    10.50   In accordance with Radio Message orders attempted to deliver a radio message during the day.  Because the boat is changing its operations area, there is no harm in transmitting here.   
        Radio message about situation and sinkings is delivered but no one gives a receipt  
    12.00 KP 5534 Day's run:  103 nm 19 nm.  
      SE 1 The boat has had good visibility since 19 November.  
    16.00 KP 6141    
    20.00 KP 6157    
    24.00 KP 6191    
      SE 1                                                    
         
    24.11.42 Eastern part of the Delagoa Bay  
    03.38 KP 6511 Steamer in sight to the north on SSE-course.  
      Dawn Maneuvered ahead and matched speed..  
    06.37 KP 6463 Dove to attack.  
    07.37   Shot with G7e, range = 800 meters, target speed 10.5 knots, target angle = 85°.  
        Because the enemy zigzags slightly at the shot, G7e shot range = 500 meters, target speed 10 knots, target angle = 115°.  Depth = 2 meters (the ship is in ballast).  
        Hit after 37 seconds amidships.  
        The crew is leaving, however, the ship does not sink.  
    08.02 Vis. good, cloudless Surfaced.  
    08.42 KP 6465 The ship sank after 78 rounds from the 10.5 cm, 65 of which hit in the stern.  
        The 3.7 cm cannon has a barrel burst and remains out of service.  
        From the statements of the shipwrecked which sat in 2 lifeboats, it was the Greek "MOUNT HELMOS", approximately 5000 GRT and 10000 tons displacement, from Suez to Cape Town.  
        Set off to the north.  
           
                                                                
Sun and Moon Data 23.11.42
Sun and Moon Data 24.11.42
 
- 27 -
 
           
           
           
    continued      
    24.11.42      
    12.00 KP 6438 Day's run:  155 nm 3 nm.  
      SE 2, Vis. moderate    
    15.56 KP 6277 Steamer in sight to the ENE on course WNW.  
        Maneuvered ahead.  
    19.52 KP 6159 Dove to attack.  
      Darkness, moonrise    
    20.34   Shot with G7a from stern tube, range = 700 meters, target speed 10 knots, target angle 80°, depth = 3 meters.  
        Hit after 37 seconds amidships  
        Steamer does not sink.  
        With the extended rod aerial he is heard calling for help without knowing how.  It is the first Englishman whom we sink, "DORINGTON COURT", 5281 GRT on course from Australia to Lourenco-Marques.  
    21.03 KP 6158 Coup de grâce with a G7a from a stern tube, range = 800 meters, target angle = 90°, depth = 4 meters nissed.  
        It must have made a sharp turn, or steered too deeply.  Also, it was not heard in the sound locator but that is still no proof of a deep runner, given the unreliability of this device.  Steamer lay perfectly stopped.  
    21.23   Surfaced.  
    22.20 Moonlit Steamer sank after 90 rounds 10.5 cm, of which 60 hit in the stern.  With the incendiary ammunition there were 40 shots and 7 failures.  With the 2 cm MG C/30 there was a barrel bulge and the ejector foot broke.  The 3.7 cm cannon is out of service permanently.  
        In spite of a lot of hits with incendiary ammunition the steamer did not catch fire, so that aiming was made much more difficult in the darkness.  
        The steamer had a 2-3 meter long jib-boom from which an antenna stay led to the front mast.  The same was observed earlier on an English steamer off Lourenco.  
        Set off to the east.  
    24.00 KP 6466    
      E 2                                                    
         
    25.11.42      
    04.00 KP 6169    
    08.00 KP 6514    
    12.00 KP 6466 Day's run:  162 nm 4 nm.  
      E 2    
    12.42   "DORINGTON COURT" is called by the Durban radio station.  We answer instead of the sunken steamer with its name, so that the land station which had already called the steamer once in the morning does not get suspicious.  
    13.57 KP 6465 Artillery cleaning and preservation work on the upper deck.  
        Crash dive for approaching flying boat to the north.  
    15.41 KP 6463 Surfaced.  
        The same flying boat in sight in the NW with easterly course.  Dived.  
                                                                
Sun and Moon Data 24.11.42
Sun and Moon Data 25.11.42
 
- 28 -
 
           
           
           
    continued      
    25.11.42      
    17.12 KP 6463 Surfaced.  
    20.00 KP 6443    
    24.00 KP 6427    
      E 2, Vis. good                                                    
         
    26.11.42      
    04.00 KP 6436    
    08.00 KP 6522    
    12.00 KP 6298 Day's run:  159 nm 15 nm.  
      NE 3    
    16.00 KP 6373    
    20.00 KP 6624    
    20.52 KP 6625 Sent Radio Message 18.46 hours concerning sinkings and situation:  ". . . entrance (to Lourenco-Marques), difficult to cover because the north border operations area is too near. . . . 181 cbm, 2 Etos, 4 Atos. . ."  
    21.00   Incoming Radio Message, saying that the boat should report position tonight.  
        Turned back and advanced to the NW to catch traffic running between 40 nm and 70 nm off the coast.  
    24.00 KP 6633    
      E 2, Vis. good                                                    
         
    27.11.42      
    04.00 KP 6622    
    08.00 KP 6373    
    12.00 KP 6268 Day's run:  140 nm 2 nm.  
      E 1    
    16.00 KP 6225 Incoming Officer-only Radio Message 15.57 hours:  "Attack area in the Mozambique Strait extended to the north to 20°S."  
        Steered a northerly course towards Cape Correntes, to catch traffic between Durban and Lourenco there.  
    20.00 KP 6213    
    24.00 KP 3848                                                    
         
    28.11.42 Close under the coast by Cape Correntes  
    04.00 KP 3815    
    08.00 KP 3576    
    10.39 KP 3558 Steamer in sight in the NW on SW-course.  
        Maneuvered ahead.  
    12.00 KP 3555 Day's run:  159 nm 1 nm.  
      E 3, Vis. good    
    16.39 KP 3718 Dove to attack.  
    17.35 Twilight Portuguese "INHARRIME" recognized, range = 800 meters.  1600 GRT, speed = 11 knots.  Navigation lights are set, but flag and national emblem are neither lit up, nor actually, to be seen.  Positioned amidships on the hull written in capital letters: "INHARRIME PORTUGAL"  
        Attack broken off.  The small, modern and fast steamer cost us a lot of fuel, also he has lured us far from our desired position.  
    18.00   Surfaced.  
                                                                
Sun and Moon Data 25.11.42
Sun and Moon Data 26.11.42
Sun and Moon Data 27.11.42
Sun and Moon Data 28.11.42
 
- 29 -
 
           
           
           
    continued      
    28.11.42   Proceeding along the coast on a counter course of 60°.  
    20.32 KP 3725 Steamer in sight to the west on course 240°.  
      Darkness, marine phosphorescence Maneuvered ahead, matched speed.  
    22.19 KP 3719 Dove to attack.  
      Moonshine    
    22.50   Shot with G7a, range = 900 meters, target speed 11 knots, target angle = 80°.  
        Hit after 45 seconds amidships.  
        Steamer does not sink, crew takes to the boats.  
    23.23 KP 3743 Surfaced.  
      E 2 Steamer was sunk with 107 10.5 cm rounds.  
        One in 4 rounds of incendiary ammunition was a failure.  
        Unfortunately, the steamer does not also catch fire, so that aiming is difficult again.  
    24.00 KP 3742 After 70 hits the steamer sinks.  
      Lighthouse "Boa Paz" bears 2° 26 nm. Steamer strongly resembles the type of the ships of the Harrison Shipping Company ("type HARBERTON" - 4585 GRT), however, ran at 11 knots instead of the given 10 knots.  Otherwise, it had all characteristic features of this type:  Lowered deck fore and aft, 5 loading hatches, 110-120 meters length (after measurement with the periscope).  Set off to the NE.  
                                                           
    29.11.42 Entrance to the Mozambique Straits  
    04.00 KP 3755    
    08.00 KP 3739    
    12.00 KP 3579 Day's run:  169 nm 6 nm.  
      E2    
    16.00 KP 3554    
    20.00 KP 3524    
    23.42 KP 3291 As ordered reported success with Radio Message 22.48 hours:  ". . . Sank 4500 tonner.  "INHARRIME" sighted, neither flag or national emblem illuminated.  2 Etos, 3 Atos, 170 cbm, counting on 40 cbm supply. . ."  
      E 3  
        Set off along the coast to the NE.  
                                                           
    30.11.42 Northeast of Cabo das Correntes  
    01.15 KP 3294 Steamer in sight to the north on course 200°.  
      Moonshine Maneuvered ahead.  
    03.08 KP 3533 Dove to attack.  
      Dawn The enemy is now zigzagging particularly strongly.  
    05.11 KP 3523 Shot with G7e, range = 500 meters, target speed 9 knots, target angle 70, depth 2 meters on the Greek "CLEANTHIS", 4182 GRT, his name can be read on the bridge.   Traveling in ballast.  
        After 40 seconds another G7e is shot, range = 400 meters, target speed 8.5 knots, target angle 100, depth 2 meters.  
        Both shots fail, or pass under the steamer whose propellers are half above the water.  
        Near the bridge 2 raised MG-platforms are recognized 2 others near the 4 cm cannon on the stern  
                                                                
Sun and Moon Data 28.11.42
Sun and Moon Data 29.11.42
Sun and Moon Data 30.11.42
 
- 30 -
 
           
           
           
    continued   Prepared for surprise attack and during the preparation time steered in the wake.  
    30.11.42    
    05.22   Both torpedoes detonate at the end of the run after 11 minutes running time.  
    05.31 KP 3523 Surfaced for surprise attack with the 10.5 cm (the 3.7 cm remains out of service), MG C/30 and 4 light MG's were ready.  
      N 3, light swell, Vis. good, cloudless  
        Range = 3000 meters, target angle 170°, own speed 9 knots.  
        the 3rd shot struck at the bridge and then hits with incendiary ammunition followed continuously.  However, the steamer does not burn and shows actually little effect.  
    05.38   While the steamer sends out calls for help, his antenna is shot away.  No land station has acknowledged.  
    05.45   Crew goes to the only remaining undamaged lifeboat. The ship continues ahead, however, it is evidently adrift and goes athwart the sea.  
    06.00   Fired 80 10.5 cm rounds from 2000-3000 meters range, of which 70 hit in the stern and starboard side.  
        Smoke issues from inside the steamer.  Boat has only a single 10.5 cm round remaining and now closes to 400 meters range and fires after aiming carefully close under the waterline in the stern.  
        Afterwards fired air holes in the stern and port side with the 2 cm with explosive ammunition.  
        Now the ship begins to sink slowly deeper.  Fires appear inside the ship which cause heavy smoke.  
    06.55 KP 3525 Steamer sank over the stern.  
        At the stern cannon several corpses swim.  Again, it had (previously observed twice), a bowsprit of approximately 5 meters in length fastened to his foremast by fairly primitive means.   Furthermore he was equipped with otters [mine clearance gear] and smoke generators.  
        Set off to the NE on false courses.  
    12.00 KP 3291 Day's run:  129 nm 6 nm.  
      NE 3    
    16.00 KP 3379    
    20.00 KP 3386    
    24.00 KP 3369    
      NNE 4                                                    
         
    01.12.42      
    04.00 KQ 1188 As ordered sinking "CLEANTHIS" reported by Radio Message 23.57 hours.   Afterwards proceeded off the coast to the SE.  
    08.00 KQ 1195    
    12.00 KQ 1184 Day's run:  134 nm 2 nm.  
      N 4    
    16.00 KQ 1177 The sinking of the Greek "EVANTHIS", 3551 GRT off Lourenco-Marques on the 29th of November is announced on the radio.  This was the steamer of the type "HARBERTON" sunk by us on the evening of 28 November.  
Sun and Moon Data 30.11.42
Sun and Moon Data 01.12.42
 
- 31 -
 
           
           
           
    continued      
    01.12.42      
    20.00 KP 3622    
    24.00 KP 3616    
      NNW 3, marine phosphorescence                                                    
         
    02.12.42 25 nm off Cape Correntes    
    04.00 KP 3562    
    08.00 KP 3558    
    12.00 KP 3585 Day's run:  158 nm 1 nm.  
      NE 5    
    13.50 KP 5567 Steamer in sight to the NE on general course 200°.  
        Maneuvered ahead and matched speed.  
    16.41 KP 3586 Steamer zigzags particularly heavily.  
      NE 3 Dove to attack.  
    17.40 KP 3586                         Twilight Shot with G7a, range = 700 meters, target speed = 8.5 knots, target angle 70°.  
        Hit after 37 seconds amidships.  
        Ship broke apart and sank in 2 minutes.  
    17.43   Surfaced.  
        Only 6 men could escape on a raft.  According to their statements it was the "AMARYLIS", 4328 GRT of Panama.  
      Night is falling A drowning sheep was taken aboard and killed.  
        Set off to the SSW.  
     
Intention:  Delayed return transit along the coast.  Boat has to cover more than 800 nm, before it leaves the real operations area; it is likely more steamers will be sighted than can be sunk with the remaining 2 Atos.  Artillery ammunition is exhausted.  Although the boat has asked by Radio Message on 26 November for supply of 40 cbm, I will prepare for return without executing supply because the torpedo inventory on 26 November (2 Etos and 4 Atos) is now reduced to 2 Atos.  Therefore a longer stay in the north of the operations area is not possible because of the fuel situation.
 
    24.00 KP 3853    
      NNE 5                                                    
         
    03.12.42      
    01.55 KP 3851 Shadow in sight to the NW.  
      Vis. moderate Headed for it.  
        However, the shadow fades so quickly that despite maintaining the highest speed it is lost from sight.  
        Up to dawn still followed on his approximate general course of 210°.  In the course of this, at range = 3000 meters the hospital ship "DORSETSHIRE", 9700 GRT passes which was lit up correctly.  
    03.20 KP 3873 The shadow was probably a fast zigzagging destroyer for Durban.  
      Dawn ended Abandoned pursuit.  
           
                                                                
Sun and Moon Data 01.12.42
Sun and Moon Data 02.12.42
Sun and Moon Data 03.12.42
 
- 32 -
 
           
           
           
    continued      
    03.12.42      
    08.00 KP 6251 Boat does long legs on general course of 210°, because on this course traffic was observed by "U-177".  
    12.00 KP 6247 Day's run:  160 nm 3 nm.  
      NNE 4, Vis. variable, low clouds    
    16.00 KP 6183    
    20.00 KP 6113    
    24.00 KP 6457    
      NE 2    
     
Intention:  Because the beautiful weather period here seems to have given way to dampness, I want to stay somewhat off the coast and operate on the northbound traffic which seems to go approximately 100-200 nm along the coast based on the Radio Messages from "U-178" and "U-177".  At East London I will again operate nearer to the coast because there perhaps Australian traffic meets the African coast.
 
                                                           
    04.12.42      
    03.53 KP 6725 Destroyer in sight to the SE on southerly course.  
      Dawn Evaded.  
    08.00 KP 6764    
    12.00 KP 6798 Day's run:  152 nm 4 nm.  
      NE 4, low clouds    
    16.00 KP 9163    
    20.00 KP 9277 Sent Radio Message 18.23 hours:  "1)  . . . "AMARYLIS" sunk.  Delayed return transit.  2 Atos, 153 cbm. . .   2)  Above Sea State 4, in addition to swells depth keeping is poor.  Bigger diving planes are necessary at least for new construction "  
        Now "U-177" also knows that we have left the area to the north of his position.  
        Depth keeping at periscope depth in our big, wide and long boats in a rough sea in the Atlantic is substantially worse at than in the type IX b boats.  A message on that point in the homeland after 2 months would arrive too late.  
    24.00 KP 9545    
      ENE 3, cloudy                                                    
         
    05.12.42      
    04.00 KP 9821    
    08.00 KP 9855    
    12.00 KZ 3255 Day's run:  189 nm 3 nm.  
      N 4, Vis. medium, low clouds    
    16.00 KZ 3254    
    20.00 KZ 3193    
    24.00 KZ 3198    
      W 4                                                    
Sun and Moon Data 03.12.42
Sun and Moon Data 04.12.42
Sun and Moon Data 05.12.42
 
- 33 -
 
           
           
           
           
    06.12.42      
    04.00 KZ 3421    
    08.00 KZ 3417    
    12.00 KZ 2662 Day's run:  118 nm 11 nm.  
      SW 6    
    16.00 KZ 2654    
    20.00 KZ 2617    
    24.00 KZ 2563    
      SE 2                                                    
         
    07.12.42 Northeast of East London    
    04.00 KZ 2555    
    08.00 KZ 2549    
    12.00 KZ 2468 Day's run:  133 nm 1 nm.  
      W 1, Vis. good    
    16.00 KZ 2481    
    20.00 KZ 1669    
    24.00 KZ 1658    
      NNE 1                                                    
         
    08.12.42      
    04.00 KZ 1648    
    08.00 KZ 1597 The coast is in sight.  
    09.01 KZ 1832 Dived for aircraft in the west.  
    10.07   Surfaced.  
    12.00 KZ 1862 Day's run:  158 nm 5 nm.  
      ENE 5    
    16.00 KZ 1893 Boat comes to a southerly course, to traverse the Australia-Cape Town shipping lane  
      Vis. poor  
    20.00 KZ 4253    
    24.00 KZ 4292    
      E 4    
      Marine phosphorescence                                                    
         
    09.12.42      
    04.00 KZ 4568    
    08.00 KZ 4832    
    12.00 KZ 4865 Day's run:  169 nm 11 nm.  
      ENE 4, Vis. medium    
    16.00 KZ 4898    
    20.00 KZ 7261    
    24.00 KZ 7254    
      NNE 3                                                    
         
    10.12.42      
    04.00 KZ 7165    
    08.00 KZ 7168 Dived, continued submerged to save fuel, because with this rough sea hardly any forward progress was made, besides, visibility was poor.  
      W 7, high swell, Vis. poor  
    12.00 KZ 7159 Day's run:  96 nm 6 nm.  
    16.00 KZ 7158 Surfaced, continued on the surface.  
      SW 4    
    20.00 KY 9395    
    24.00 KY 9385    
      SW 3                                                    
           
                                                                
Sun and Moon Data 06.12.42
Sun and Moon Data 07.12.42
Sun and Moon Data 08.12.42
Sun and Moon Data 09.12.42
Sun and Moon Data 10.12.42
 
- 34 -
 
           
           
           
           
    11.12.42      
    04.00 KY 9296    
    08.00 KY 9284    
    12.00 KY 9195 Day's run:  144 nm 13 nm.  
      NE 3    
    16.00 KY 9176    
    20.00 KY 8367    
    24.00 GR 9693    
      NE 5                                                    
    12.12.42      
    04.00 GR 9681    
     
Intention:  Proceed north along the west coast of Africa not more than 70 nm off shore, to detect Cape Town traffic there (in accordance with Radio Message announcement of the B.d.U.).  From 20°S, course for Ascension.
 
    08.00 GR 9592    
    12.00 GR 9573 Day's run:  191 nm 2 nm.  
      SE 2, Vis. good    
    16.00 GR 9494    
    20.00 GR 9715    
    24.00 GR 9634    
      W 4                                                    
         
    13.12.42      
    04.00 GR 8939    
    08.00 GR 8861    
    12.00 GR 8816 Day's run:  178 nm 2 nm.  
      SW 6    
    16.00 GR 8493    
    20.00 GR 8425    
    24.00 GR 8172    
      SW 2                                                    
         
    14.12.42 West of Cape Town    
    04.00 GR 7338    
    08.00 GR 4987    
    12.00 GR 4955 Day's run:  180 nm 2 nm.  
      SW 2    
    16.00 GR 4687    
    20.00 4651    
    24.00 GR 4384    
      S 2                                                    
         
    15.12.42      
    04.00 GR 4319    
    08.00 GR 1949    
    12.00 GR 1922 Day's run:  175 nm 2 nm.  
      SSE 5 Incoming Radio Message 10.30 hours, Serial No. 438, that supply cannot be counted on.  
    16.00 GR 1651  
    20.00 GR 1379 Sent Radio Message 19.43 hours: "the shortest return transit started.  Proceeding to FW 80 given up."..." (i.e. along the African coast to 20°S)  
                                                                
Sun and Moon Data 11.12.42
Sun and Moon Data 12.12.42
Sun and Moon Data 13.12.42
Sun and Moon Data 14.12.42
Sun and Moon Data 14.12.42
 
- 35 -
 
           
           
           
    continued   To save fuel the boat proceeds in trim condition "A", that means all ballast tanks blown and on the Great Circle to the Cape Verde Islands.  At the same time, will also switch to Amerkia II Circuit, to find out what the traffic situation is in the mid-Atlantic.  
    15.12.42    
    24.00 GR 1348  
      SE 5  
                                                           
    16.12.42 Height of Port Nolloth    
    04.00 GR 1234    
    08.00 GJ 7779    
    12.00 GH 9965 Day's run:  184 nm 2 nm.  
      S 5    
    16.00 GH 9916 From now on boat can count on trade wind and following current.  
    20.00 GH 9568    
    24.00 GH 9543    
      SSE 4                                                    
         
    17.12.42      
    04.00 GH 9199    
    08.00 GH 9154    
    12.00 GH 8336 Day's run:  179 nm 2 nm.  
      S 5    
    16.00 GH 5985    
    20.00 GH 5943    
    24.00 GH 5588    
      SE 3                                                    
         
    18.12.42      
    04.00 GH 5466    
    08.00 GH 5425    
    12.00 GH 5178 Day's run:  179 nm 2 nm.  
      SE 2    
    16.00 GH 4365    
    20.00 GH 4316    
    24.00 GH 1892    
      SE 3                                                    
         
    19.12.42      
    04.00 GH 1851    
    08.00 GH 1499    
    12.00 GH 1455 Day's run:  187 nm 3 nm.  
      SE 2    
    16.00 GG 3633 Sighted a fully equipped lifeboat of "ORCADES", which was sunk at the beginning of October about 1000 nm SSE.  
    20.00 GG 3352    
    24.00 FV 8855    
      SE 2                                                    
Sun and Moon Data 15.12.42
Sun and Moon Data 16.12.42
Sun and Moon Data 17.12.42
Sun and Moon Data 18.12.42
Sun and Moon Data 19.12.42
 
- 36 -
 
           
           
           
           
    20.12.42      
    04.00 FV 8818    
    08.00 FV 8498    
    12.00 FV 8455 Day's run:  205 nm 6 nm.  
      SE 2    
    16.00 FV 7633    
    20.00 FV 7359    
    24.00 FV 7311    
      SE 2                                                    
         
    21.12.42      
    04.00 FV 4858    
    08.00 FV 4814    
    12.00 FV 4495 Day's run:  196 nm 3 nm.  
    16.00 FV 4451    
    20.00 FV 4411    
    24.00 FU 6355    
      SE 2                                                    
         
    22.12.42      
    04.00 FU 6353    
    08.00 FU 6312    
    12.00 FU 3891 Day's run:  160 nm 6 nm.  
      SE 3    
    16.00 FU 3816    
    20.00 FU 3493    
    24.00 FU 3425    
                                                           
    23.12.42 East of St. Helena    
    04.00 FU 3171    
    08.00 FU 2337    
    12.00 FN 8979 Day's run:  192 nm 2 nm.  
      SE 1    
    16.00 FN 8877    
    20.00 FN 8764    
    24.00 FN 8713    
      SE 2                                                    
         
    24.12.42 Between St. Helena and Ascension  
    04.00 FN 7666    
    08.00 FN 7625    
    12.00 FN 7344 Day's run:  211 nm -- nm.  
      SE 1    
    16.30 FN 7231 In accordance with orders supplementing text proposal to linkup with the German Radio Broadcasting Service for Christmas sent open radio message saying:  
      Vis. good. from 16 December constantly partly cloudy  
        "From the South Atlantic merry Christmas greetings to all at home.  Up to now 58000 GRT sunk.  Now a Christmas party in the tropical heat with accordion and home-made fir tree at 30-meters depth".  
                                                                
Sun and Moon Data 20.12.42
Sun and Moon Data 21.12.42
Sun and Moon Data 22.12.42
Sun and Moon Data 23.12.42
Sun and Moon Data 24.12.42
 
- 37 -
 
           
           
           
    continued   The radio message is given a receipt, but evidently is not read out in the linkup.  
    24.12.42    
    17.00   Dived for Christmas celebration.  
    18.58 FN 4888 Surfaced, continued transit.  
    24.00 FN 4499    
      SE 1                                                    
         
    25.12.42      
    04.00 FN 4419    
    08.00 FN 4171    
    12.00 FM 3988 Day's run:  212 nm 6 nm.  
      SE 1    
    16.00 FM 3942    
    20.00 FM 3595    
    24.00 FM 3553    
                                                           
    26.12.42 East of Ascension    
    04.00 FM 3276    
    08.00 FM 3138    
    12.00 FF 7782 Day's run:  201 nm 3 nm.  
      SE 2    
    16.00 FF 7718    
    20.00 FE 9695    
    24.00 FE 9627    
      SE 1                                                    
         
    27.12.42      
    04.00 FE 9374    
    08.00 FE 9237    
    12.00 FE 6884 Day's run:  195 nm 3 nm.  
      SE 2    
    16.00 FE 6841    
    20.00 FE 6494    
    24.00 FE 6451    
      SE 1                                                    
         
    28.12.42      
    04.00 FE 6174    
    08.00 FE 5324 Per orders switched to America II Circuit.  
    12.00 FE 2971 Day's run:  205 nm 4 nm.  
      SE 1 Passed the Equator at 15° 24'W  
    16.00 FE 2837    
    20.00 FE 2584    
    24.00 FE 2517    
      SE 1                                                    
         
    29.12.42      
    04.00 FE 2186    
    08.00 FE 2141    
    12.00 ET 7997    
                                                                
Sun and Moon Data 24.12.42
Sun and Moon Data 25.12.42
Sun and Moon Data 26.12.42
Sun and Moon Data 27.12.42
Sun and Moon Data 28.12.42
Sun and Moon Data 29.12.42
 
- 38 -
 
           
           
           
    continued      
    29.12.42      
    12.00 ET 7997 Day's run:  206 nm -- nm.  
      SE 1    
    16.00 ET 7943    
    20.00 ET 7599    
    24.00 ET 7555 Up to now in the region of the SE trade winds the boat has had mostly good visibility.  
      SE 1, marine phosphorescence, Vis. moderate  
                                                         
    30.12.42 Sea area off Freetown    
    04.00 ET 7279    
    08.00 ET 7165    
    12.00 ET 7122 Day's run:  192 nm -- nm.  
      NE 1    
    16.00 ET 4729    
    20.00 ET 4473    
    24.00 ES 6636    
      NE 2, marine phosphorescence                                                    
         
    31.12.42      
    04.00 ES 6383    
    08.00 ES 6323    
    12.00 ES 3678 Day's run:  213 nm 2 nm.  
      NE 3    
    16.00 ES 3565    
    20.00 ES 3522 Gave up the intention to pass the Cape Verde Islands to the east because it is possible to save fuel by passing them in the west and also perhaps to contact the approach traffic to Freetown reported on southeasterly courses.  
    24.00 ES 3247    
      NE 2, marine phosphorescence                                                    
         
    01.01.43 South of the Cape Verde Islands  
    00.35 -   Warning tones in the FuMB on 250 cm at irregular intervals.  
    01.05 ES 3145 Nothing seen.  
    04.00 ES 3135    
    08.00 EJ 9783    
    12.00 EJ 9743 Day's run:  173 nm -- nm.  
      NE 2    
    16.00 EJ 8699    
    20.00 EJ 8655    
    24.00 EJ 8614    
      ENE 3                                                    
         
    02.01.43      
    04.00 EJ 8283    
    08.00 EJ 8224    
    12.00 EJ 5796 Day's run:  181 nm 3 nm.  
      NNE 5    
    16.00 EJ 5753    
      NE 6    
    20.00 EJ 5712    
    24.00 5444    
      NNE 3                                                    
           
           
Sun and Moon Data 29.12.42
Sun and Moon Data 30.12.42
Sun and Moon Data 31.12.42
Sun and Moon Data 01.01.43
Sun and Moon Data 02.01.43
 
- 39 -
 
           
           
           
           
    03.01.43      
    04.00 EJ 4398    
    08.00 EJ 4364    
    12.00 EJ 1987 Day's run:  180 nm 3 nm.  
      NE 4    
    16.00 EJ 1943    
    20.00 EJ 1677    
    24.00 EJ 1641    
      NE 4, light marine phosphorescence                                                    
         
    04.01.43      
    04.00 EJ 1377    
    08.00 EJ 1341    
    12.00 DT 7977 Day's run:  158 nm 4 nm.  
      NE 5    
    16.00 DT 7947    
    20.00 DT 7921    
    24.00 DT 7586    
      NE 4, light marine phosphorescence                                                    
         
    05.01.43      
    04.00 DT 7229    
    08.00 DT 7286    
    12.00 DT 7253 Day's run:  141 nm 2 nm.  
      NE 4    
    16.00 DT 4885    
    20.00 DT 4828    
    24.00 DT 4586    
      NE 3                                                    
         
    06.01.43      
    04.00 DT 4561    
    08.00 DT 4296    
    12.00 DT 4265 Day's run:  151 nm 3 nm.  
      NE 4    
    16.00 DT 4233    
    20.00 DT 1947    
    24.00 DT 1915    
      NE 4    
         
    07.01.43      
    04.00 DT 1649    
    08.00 DT 1625    
    12.00 DT 1394 Day's run:  150 nm 3 nm.  
      NE 3    
    16.00 DT 1362    
    20.00 DG 9885    
    24.00 DG 9853    
      NE 3, marine phosphorescence                                                    
         
    08.01.43 West of the Canary Islands    
    04.00 DG 9594    
    08.00 DG 9562    
    12.00 DG 9377 Day's run:  159 nm 3 nm.  
      NE 2    
           
Sun and Moon Data 03.01.43
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
Sun and Moon Data 08.01.43
 
- 40 -
 
           
           
           
    continued      
    08.01.43      
    16.00 DG 9342    
    16.30   Incoming Radio Message 16.08 hours:  "U-381" reports 16.00 hours convoy DG 8495, course 60°".  
        The convoy's position bears 225° at 295 nm.  
        Boat comes to a westerly course.  
     
Intention:  Operate on the convoy at slow speed, so that it may come into sight tomorrow afternoon.  Begin the attack at night with the last two Atos.
  Because of lack of fuel the boat can no longer operate at high speed on the convoy.  Also the convoy would be reached only 2 hours before dawn, presuming that it was immediately found at night.  With the Atos, the boat would likely have to hold off the attack till night and maintain contact for a long time but this would cost too much fuel.
 
    18.15   Sent Officer-Only Radio Message 17.27 hours:  "1)  Operating on Pückler ("U-381").  Position DG 9319, have 2 Atos, 43 cbm. . . .  
        2)  Recommend Ob.Masch.Wilhelm Pickelmann for the German Cross. . . . ".  
    20.00 DG 9239    
    24.00 DG 9252    
      NE 1                                                    
         
    09.01.43      
    04.00 DG 9255    
    08.00 DG 9513    
    12.00 DG 9515 Day's run:  150 nm 3 nm.  
      SSE 1, Vis. very good The last contact report was from "U-575".  At 06.35 hours the convoy was in DG 8638 in confused formation, course north.  
        From a previous message 9 of 12 tankers have been torpedoed during the night.  
        Boat operates course of 75°, more on the previous general and steers a northerly course to ensure crossing the course of the convoy.  Meeting is possible from 14.00 hours.  
    13.06 DG 9517 Mastheads sighted in 289°.  
    13.12   3 steamers recognized.  
    13.20   Sent Short Signal:  "Convoy with 5 steamers in DG 9517"  
    13.30   Steaming on course 70°.  
    13.34   Sent Short Signal:  "3 Steamers DG 9517, 70°."  
        The steamers have a small target angle, escorts are not made out.  
     
Intention:  Dive as fast as possible to attack, before probably scattered escorts again take position around the convoy, otherwise there will not be any opportunity to attack with the Atos by day.
 
    13.45   Medium sized German U-boat sighted to port.  It is also already positioned favorably for attack.  
    13.56   Sent Short Signal:  "Intend to attack enemy in DG 9516".  
    14.04   Contents of the first short signal are confirmed.  
    14.14 DG 9516 Dove to attack.  
                                                                
Sun and Moon Data 08.01.43
Sun and Moon Data 09.01.43
 
- 41 -
 
           
           
           
    continued   The convoy is at target angle right 10°, 16000 meters, course 70°.  
    09.01.43   Evidently the other U-boat dived a few minutes earlier.  
    14.25 DG 9516 3 tankers recognized in line ahead formation.  
    14.40   The tankers turn to starboard on course 100°, so that they are in target angle 0°.  
        Turned to port set off to the south to approach the southern most tanker to shoot from target angle right 80°.  
    14.55   Older gunboat recognized to the south abeam the southern most tanker.  Behind it apparently an escort and another to the north of the tankers.  
    15.05   The convoy turns away again to port on course 75°.  The gun boat approaches the boat from target angle 0°.  He does such unfavorable zigzags, that he  
    15.20   overruns the boat.  Boat went deep approximately 800 meters ahead of him.  The long big boat is difficult to take from periscope depth to 20 meters because only a slight down angle will expose the propeller wash above the surface.  Besides, in calm seas we may not run at more than LF.  
        Distance from the tanker 2000 meters, target angle 80-90°.  
        Abandined attack with Atos.  
    15.30   Just as the boat is going to periscope depth, 3 loud torpedo detonations are heard which can only have come from the other boat.  Afterwards depth charges for other boat until approximately 16.00 hours.  
    17.00   The propeller sounds of both escorts disappear just as a those of a destroyer appear from the west.  Because the bearing is steady and the destroyer runs closely around the boat, we have not yet gone to periscope depth.  
    17.36   Still another destroyer is heard.  
    18.08   Asdic sounds every 4 seconds.  
        Boat turns submerged on course 35° in the direction of the torpedoing location.  There the final destroyer is heard for a while. It seems to stay there.  
    19.03 DG 9519 Surfaced, ran towards the torpedoing location, nothing seen.  
      Vis. good    
    19.33 DG 9542 Sent Radio Message 19.15 hours: "1)  Convoy at 15.20 hours in DG 9518, line ahead, 75°, 9 knots, side protection.  Shot with Atos not taken.  
        2)  15.30 hours torpedo detonations, afterwards depth charges.  
        3)  Return transit in view of fuel.  Position DG 9542."  
    21.30   Incoming Radio Message 20.28 hours:  "Look for torpedoed steamers, afterwards return transit.  
     
Intention:  Continue return transit, but until morning on course 70° to follow the general course of the convoy to look for wrecked steamers.
 
    23.15   After the evening navigation fix, correction of 22 nm, 325° determined.  
    24.00 DG 9266                                                    
         
         
         
Sun and Moon Data 09.01.43
 
- 42 -
 
           
           
           
           
    10.01.43      
    00.05   Sent Radio Message 22.30 hours:  "At daylight on torpedoing location nothing found.  Return transit early tomorrow morning on course 70°.  Convoy of 3 tankers in addition an older gunboat.  Improved convoy position at 15.20 hours is DG 9277. . . "  
    04.00 DG 9329    
    08.00 DH 4778 Final return transit on northeasterly course begun.  
    09.00 DH 4781 "U-552" met, at hailing distance exchange of experience.  "U-552" continues to hunt behind the remaining tankers.  
    11.52   Incoming Short Signal from "U-620":  2 Steamers, DH 4847, 12.40 hours, 70°, 12 knots.  
        Was not received by Control and, therefore, was repeated by the boat, but without success.  
        Day's run:  184 nm 15 nm.  
    12.53   Repeated repetition of the short signal of "U-620" on a more favorable frequency.  Given a receipt and around 15.17 hours is confirmed by contents.  
    16.00 DH 4499    
    20.00 DH 4543    
    24.00 DH 4291    
      NW 1, light marine phosphorescence                                                    
         
    11.01.43      
    03.08 DH 4239 Swiss steamer of approximately 4000 GRT, course 320° sighted.  Name cannot be read, otherwise correctly lighted.  
      NW 1  
        The Greek "THETIS" 4100 GRT on a westerly course is transmitting from this area.  One supposes that it concerns this steamer.  
    04.00 DH 4314    
    08.00 DH 1949 Switched to Ireland Circuit as ordered.  
    12.00 DH 1687 Day's run:  219 nm -- nm.  
      SE 2    
    16.00 DH 1667    
    20.00 DH 1635    
    24.00 DH 2146    
      WNW 2, light marine phosphorescence                                                    
         
    12.01.43      
    00.50 DH 2143 Portuguese steamer sighted of 3-4000 GRT on course 250°.  
    04.00 DH 2122    
    08.00 CF 8968    
    12.00 CF 9715 Day's run:  175 nm 3 nm.  
      WNW 1    
    16.00 CF 9481    
    20.00 CF 9453    
    24.00 CF 9271    
      WSW 2, light marine phosphorescence                                                    
Sun and Moon Data 10.01.43
Sun and Moon Data 11.01.43
Sun and Moon Data 12.01.43
 
- 43 -
 
           
           
           
           
    13.01.43      
    04.00 CF 9227    
    08.00 CF 6886    
    12.00 CF 6863 Day's run:  187 nm 2 nm.  
      SW 3, Vis. good    
    16.00 CF 6913    
    20.00 CF 6658    
    24.00 CF 6399    
      SW 5                                                    
         
    14.01.43      
    03.25   Sent Short Weather Signal as ordered.  
    04.00 CG 4146    
    08.00 CG 4126    
    12.00 CG 1793 Day's run:  180 nm 2 nm.  
      NW 3    
    16.00 CG 1818    
    20.00 CG 1592    
    24.00 CG 1642    
      W 2, heavy marine phosphorescence                                                    
         
    15.01.43      
    04.00 CG 1624    
    08.00 CG 2145 Switched to Coastal Circuit as ordered.  
      SW 2    
    12.00 CG 2127 Day's run:  167 nm 23 nm.  
    16.00 CG 2126    
    20.00 BF 7799    
    24.00 BF 7862    
      SW 4                                                    
         
    16.01.43 Bay of Biscay    
    04.00 BF 7697    
    06.03   Sent Short Signal:  Position 48 hours off meeting point with convoy.  
    07.33   Short Signal contents confirmed.  
      However, boat will arrive in 18 January only around 08.00 hours at dawn instead of about 06.00 hours, however, I still wanted to send the Short Signal before diving so that it could be confirmed in time.  
    08.00 BF 8486 Proceeding submerged.  
      SW 3    
    12.00 BF 8495 Day's run:  178 nm 30 nm.  
    16.00 BF 8574    
    20.00 BF 8589 Incoming Radio Message 17.54 hours:  "Convoy position 18 January at 06.00 hours Point Gabel"  
    24.00 BF 8697    
      E 1                                                    
Sun and Moon Data 13.01.43
Sun and Moon Data 14.01.43
Sun and Moon Data 15.01.43
Sun and Moon Data 16.01.43
 
- 44 -
 
           
           
           
           
    17.01.43      
    04.00 BF 9477    
    08.00 BF 9486    
      SE 4    
    12.00 BF 9491 Day's run:  115 nm 41 nm.  
    16.00 BF 9465 Sent Short Signal:  "Position 12 hours from entering port.  Request Radio Beacon Group 3".  
    20.00 BF 9515    
    21.30   Dived.  
                                                           
    18.01.43      
    03.48 Point Hand Surfaced.  
    08.00 Point Gabel Met convoy.  
    11.22   As ordered in Radio Message 11.11 hours  
        Reported being taken in convoy.  
    12.30 Abeam Le Verdon The pilot scheduled for the convoy at 11.30 hours is not there.  Arrival is not expected before 14.00 hours, therefore, proceeding in the wake of both vessels for flak protection to Bordeaux otherwise arrival during daylight is doubtful.   
    12.45   Departed and reported on that point via the signal station to the 12th U.-Fllotille  
    17.00 Bordeaux Entered port.  
           
     
  Boat was at sea a total of 129 days and in so doing made good 21,369 nm.
  While in the se area off Capetown to Lourenco-Marques 12 steamers of 57,500 GRT were sunk.
 
           
                                                           
           
           
           
           
           
           
           
           
           
                                                                
Sun and Moon Data 17.01.43
Sun and Moon Data 18.01.43

  Enclosures to U-181's KTB - click on the text at left to proceed to the document
   
RadioA Excerpt of the Radio Log - outgoing radio messages
   
RadioB Radio Messages received on the Ireland Circuit     September - October 1942
                                                             Africa Circuit      October - December 1942
                                                            Ireland Circuit      January 1943

 
 
     
     
     
 

Comments of the Befehlshabers der Unterseeboote

 
 
on the Kriegstagebuch of "U-181" from 12.09.42 - 18.01.43.
 
 

 

 
 

        An operation by the proven Kommandanten with a new boat, which was carried out with level-headedness and tenaciousness and brought an outstanding success.

        The experiences and considerations of the Kommandanten, with regard to depth keeping qualities, will be evaluated and followed up by other authorities.
        Otherwise nothing to note.
 
     
     
   
For the Befehlshaber der Unterseeboote
 
   
- The Chief of the Operations Department-
 
 
        
 
     
     
     


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