[VONHARRIS]

Patrol No 4
08 June 1940
07:13 hours U-107 departed from Wilhelmshaven for grid CF95

12 June 1940
Grid AN14
15:09 hours MV Briar Rose (Coastal Tanker), 1060 tons. Cargo: Gasoline. Crew: 22. Crew lost: 17 - sunk by 1 stern torpedo

13 June 1940
Grid AN13
04:02 hours MV No. 1032 (Pelagic Trawler), 888 tons. Crew: 27. Crew lost: 22 - sunk by 3 stern torpedoes (1 dud)

22 June 1940
Grid CG13
02:20 hours Good weather - moved externals inside
Grid CG16
08:47 hours SS Sven Foyn (Whale Factory Ship), 17331 tons. Cargo: Aviation Fuel. Crew: 160. Crew lost: 62 - sunk by 32 105mm rounds

25 June 1940
Grid CF95
00:16 hours Reached patrol area

26 June 1940
Grid CF96
22:30 hours SS Crusader (Medium Merchant 11), 3130 tons. Cargo: Tobacco. Crew: 30. Crew lost: 10 - sunk by 4 105mm rounds

30 June 1940
11:57 hours New orders came in: Move to grid AD59 and engage enemy convoys

01 July 1940
Grid CG94
03:48 hours Intercepted Greek small merchant - no action taken

06 July 1940
Grid BE63
14:44 hours SS Adinda (Coastal Freighter), 1869 tons. Cargo: Iron Ore. Crew: 31. Crew lost: 10 - sunk by 1 torpedo

07 July 1940
Grid BE33
14:15 hours Spotted 2 enemy DDs
14:27 hours Fired 2 stern torpedoes at the last DD - diving to 100m
14:28 hours HMS Holderness (Hunt I class), 1000 tons. Crew: 158. Crew lost: 154 - sunk by 2 torpedoes - escaped undetected

14 July 1940
Grid AD59
01:25 hours Reached new patrol area
09:47 hours Spotted enemy DD - dived to PD - escaped undetected

18 July 1940
Grid AD83 - convoy attack
09:53 hours 4 bow torpedoes fired - 3 hits
09:54 hours SS Myriel (Intermediate Tanker), 3490 tons. Cargo: Crude Oil. Crew: 20. Crew lost: 11 - sunk by 1 torpedo
Damaged converted whale factory ship by 2 torpedoes
Some DCs were dropped but way off U-107 position
14:39 hours Tubes reloaded - surfaced.

03 August 1940
Grid AE87
09:21 hours SS Norefjord (Medium Merchant 11), 3131 tons. Cargo: Machinery. Crew: 35. Crew lost: 13 - sunk by 1 torpedo

08 August 1940
Grid AN14
11:55 hours MV Norfolk Coast (Coastal Tanker), 1061 tons. Cargo: Crude Oil. Crew: 15. Crew lost: 4 - sunk by 2 torpedoes (1 missed)
14:18 hours SS Porsanger (Medium Merchant 25), 4347 tons. Cargo: Military Vehicles. Crew: 32. Crew lost: 11 - sunk by 3 torpedoes

12 August 1940
15:20 hours Docked at port
66 days at sea
10 ships sunk
37307 tons
No casualties or damages
Installed a Zwillig 2 cm flak gun
Map of operations