[VONHARRIS]

Patrol 4
11 December 1939
01:26 hours U-50 left port to patrol grid AN52

12 December 1939
Grid AN65
10:17 hours Ducth tugboat seen - no action taken

14 December 1939
Grid AN52
00:33 hours Reached patrol area
15:22 hours Ship seen
15:28 hours Man the dech gun - calm seas
15:29 hours Opened fire
15:33 hours SS Marslew (Medium Merchant 25), 4347 tons. Cargo: Steel. Crew: 40. Crew lost: 18. 50 rounds used
17:01 hours Ship seen - dived to PD - 10m/s winds
17:09 hours 2 bow shots
17:11 hours 2 hits observed - ship DIW
17:23 hours Stern shot
17:25 hours Impact
17:27 hours MV Poelau Roebiah (Heavy Merchant 01), 9091 tons. Cargo: Explosives. Crew: 52. Crew lost: 43 - Surfacing the boat

16 December 1939
Grid AN51
12:54 hours Ship seen - dived to PD - 11m/s winds
13:04 hours 2 bow shots
13:05 hours 2 hits seen
13:09 hours Q Ship USS Irene Forsyte (Medium merchant), 4043 tons. Crew: 67. Crew lost: 41

17 December 1939
Grid AN55
15:39 hours Ship seen - 0m/s winds
15:48 hours Opened fire with deck gun
15:49 hours SS Vivagel (Large Trawler), 547 tons. Crew: 13. Crew lost: 11. 6 rounds used

19 December 1939
Grid AN52
00:08 hours 15m/s winds - sound contact on surface merchant closing - dived to PD
00:33 hours Visual contact
00:37 hours 2 bow shots
00:40 hours 2 hits - ship on fire
00;42 hours SS Vapper (Medium Merchant 07), 5036 tons. Cargo: Iron Ore. Crew: 67. Crew lost: 22

23 December 1939 (Kaleun's birthday R/L 23-12-1971)
Grid AN52
00:53 hours Warship seen - dived to PD
00:54 hours Multiple warship contacts
01:00 hours Contacts closing in
01:05 hours 2 bow shot at large shadow - cruiser
01:14 hours No results - contacts fading away
04:10 hours Surfaced

25 December 1939
Grid AN51
04:32 hours 15m/s winds - sound contact on surface merchant moving away - no action taken

28 December 1939
Grid AN51
00:02 hours 12m/s winds - sound contact on surface merchant closing
00:58 hours Visual contact
01:14 hours 2 bow shots - surface attack
01:15 hours 2 hits - dived to PD - ship probably armed
01:19 hours USS Demeter (Convoy repair ship), 5215 tons. Crew: 186. Crew lost: 3 flying Britsh colors
01:20 hours Surfaced - no torps left - start return trip
17:48 hours Ship seen - dived to PD
17:50 hours Enemy ore carrier
22:38 hours No sound contacts - surfaced

30 December 1939
08:13 hours Docked at port
New year at home this time
20 days at sea
6 ships sunk
28279 tons
No damages or casualties
Map of operations


Took command of U-107 IXB