U-Boat Operations

Operations information for U-107
24.01.1941 - 01.03.1941 First Sailing - active patrol U-107 left Wilhelmshaven under the command of Günter Hessler on 24th Jan 1941 and arrived at return on 1st Mar 1941 after just over five weeks. Günter Hessler hit four ships on this patrol and all of them were in convoy: two were from convoy OB-279, one was from convoy OB-288 and one was from convoy SC-20. On 3rd Feb 1941 he sank the British 4,683 ton Empire Citizen, sailing with convoy OB-279. On 3rd Feb 1941 he sank the British 5,051 ton HMS Crispin, a member of convoy OB-279. On 6th Feb 1941 he sank the Canadian 3,388 ton Maplecourt, part of convoy SC-20. On 23rd Feb 1941 he sank the British 5,360 ton HMS Manistee, from convoy OB-288.
29.03.1941 - 02.07.1941 Second Sailing - active patrol On the 29th Mar 1941, U-107 left Lorient under the command of Günter Hessler and after thirteen and a half weeks arrived at return on 2nd Jul 1941. Günter Hessler hit fourteen ships on this patrol, eight of these ships were in convoy: One was from convoy OB-309, one was from convoy OB-318, one was from convoy OB-320, one was from convoy OB-323 and four were from convoy OG-57. On 8th Apr 1941 he sank the British 3,316 ton Helena Margareta, sailing with convoy OG-57. On 8th Apr 1941 he sank the British 3,829 ton Eskdene, a member of convoy OG-57. On 9th Apr 1941 he sank the British 4,671 ton Harpathian, part of convoy OG-57. On 9th Apr 1941 he sank the British 8,516 ton Duffield, from convoy OG-57. On 21st Apr 1941 he sank the British 10,305 ton Calchas. On 30th Apr 1941 he sank the British 7,417 ton Lassell, sailing with convoy OB-309. On 17th May 1941 he sank the Dutch 8,029 ton Marisa. On 18th May 1941 he sank the British 8,286 ton Piako. On 27th May 1941 he sank the British 5,108 ton Colonial, a member of convoy OB-318. On 28th May 1941 he sank the Greek 3,748 ton Papalemos. On 31st May 1941 he sank the British 5,664 ton Sire. On 1st Jun 1941 he sank the British 5,013 ton Alfred Jones, part of convoy OB-320. On 8th Jun 1941 he sank the British 7,816 ton Adda, from convoy OB-323. On 13th Jun 1941 he sank the Greek 4,981 ton Pandias.
06.09.1941 - 11.11.1941 Third Sailing - active patrol U-107 departed under Günter Hessler from Lorient on 6th Sep 1941 and arrived at return on 11th Nov 1941 after nine and a half weeks. Günter Hessler hit three ships on this patrol and all of them were in convoy, all of them from convoy SL-87. On 24th Sep 1941 he sank the British 3,790 ton Dixcove, sailing with convoy SL-87. On 24th Sep 1941 he sank the British 4,876 ton Lafian, a member of convoy SL-87. On 24th Sep 1941 he sank the British 4,975 ton John Holt, part of convoy SL-87.
10.12.1941 - 26.12.1941 Fourth Sailing - active patrol U-107 left Lorient under the command of Harald Gelhaus on 10th Dec 1941 and after over two weeks arrived at return on 26th Dec 1941.
07.01.1942 - 07.03.1942 Fifth Sailing - active patrol On the 7th Jan 1942, U-107 left Lorient under the command of Harald Gelhaus and arrived at return on 7th Mar 1942 after eight and a half weeks. Harald Gelhaus hit three ships on this patrol, one was from convoy ON-65. On 31st Jan 1942 he sank the British 7,419 ton San Arcadio. On 6th Feb 1942 he sank the American 3,431 ton Major Wheeler. On 21st Feb 1942 he damaged the Norwegian 10,068 ton Egda, from convoy ON-65. You can read more about the Norwegian ship listed for this patrol at www.warsailors.com. Click the link for more information on Egda.
21.04.1942 - 11.07.1942 Sixth Sailing - active patrol U-107 departed under Harald Gelhaus from Lorient on 21st Apr 1942 and after eleven and a half weeks arrived at return on 11th Jul 1942. Harald Gelhaus hit seven ships on this patrol. On 29th May 1942 he sank the British 2,599 ton Western Head. On 1st Jun 1942 he sank the Panamanian 4,536 ton Bushranger. On 7th Jun 1942 he sank the 3,910 ton Castilla. On 8th Jun 1942 he sank the American 3,249 ton Suwied. On 10th Jun 1942 he sank the American 2,606 ton Merrimack. On 19th Jun 1942 he sank the American 35 ton Cheerio. On 26th Jun 1942 he sank the Dutch 10,083 ton Jagersfontein.
25.07.1942 - 29.07.1942 Seventh Sailing - active patrol U-107 left Lorient under the command of Harald Gelhaus on 25th Jul 1942 and arrived at return on 29th Jul 1942 after four days.
15.08.1942 - 18.11.1942 Eighth Sailing - active patrol On the 15th Aug 1942, U-107 left Lorient under the command of Harald Gelhaus and after thirteen and a half weeks arrived at return on 18th Nov 1942. Harald Gelhaus hit three ships on this patrol. On 3rd Sep 1942 he sank the British 4,172 ton Hollinside. On 3rd Sep 1942 he sank the British 4,393 ton Penrose. On 7th Oct 1942 he sank the British 14,943 ton Andalucia Star.
30.01.1943 - 25.03.1943 Ninth Sailing - active patrol U-107 departed under Harald Gelhaus from Lorient on 30th Jan 1943 and arrived at return on 25th Mar 1943 after more than seven weeks. On 4th Mar 1943 in square CG 83, U-107 came under attack from an unidentified aircraft. U-107 was moderately damaged by the attack. At 1435 HRS on 22nd Mar 1943 in square BF 48, U-107 came under attack from an unidentified aircraft. U-107 was not damaged by the attack. Harald Gelhaus hit five ships on this patrol, four of these ships were in convoy, all of them from convoy OS-44. On 22nd Feb 1943 he sank the British 7,801 ton Roxborough Castle. On 13th Mar 1943 he sank the British 2,352 ton Oporto, sailing with convoy OS-44. On 13th Mar 1943 he sank the British 4,592 ton Marcella, a member of convoy OS-44. On 13th Mar 1943 he sank the Dutch 4,990 ton Sembilangan, part of convoy OS-44. On 13th Mar 1943 he sank the British 5,442 ton Clan Alpine, from convoy OS-44.
24.04.1943 - 26.05.1943 Tenth Sailing - active patrol U-107 left Lorient under the command of Harald Gelhaus on 24th Apr 1943 and after four and a half weeks arrived at return on 26th May 1943. Harald Gelhaus hit one ship on this patrol. On 1st May 1943 he sank the British 12,411 ton Port Victor.
28.07.1943 - 03.10.1943 Eleventh Sailing - active patrol On the 28th Jul 1943, U-107 left Lorient under the command of Volker Simmermacher and arrived at return on 3rd Oct 1943 after nine and a half weeks. Volker Simmermacher hit two ships on this patrol, one was from convoy NG-385. On 28th Aug 1943 he damaged the American 7,176 ton Albert Gallatin. On 11th Sep 1943 he damaged the American 8,246 ton USS Rapidan, sailing with convoy NG-385.
10.11.1943 - 12.11.1943 Twelfth Sailing U-107 departed under Volker Simmermacher from Lorient on 10th Nov 1943 and after two days arrived at return on 12th Nov 1943.
16.11.1943 - 08.01.1944 Thirteenth Sailing - active patrol U-107 left St. Nazaire under the command of Volker Simmermacher on 16th Nov 1943 and arrived at return on 8th Jan 1944 after seven and a half weeks.
30.04.1944 - 02.05.1944 Fourteenth Sailing On the 30th Apr 1944, U-107 left Lorient under the command of Volker Simmermacher and after two days arrived at return on 2nd May 1944.
10.05.1944 - 23.07.1944 Fifteenth Sailing - active patrol U-107 departed under Volker Simmermacher from Lorient on 10th May 1944 and arrived at return on 23rd Jul 1944 after ten and a half weeks. Volker Simmermacher hit one ship on this patrol. On 13th Jun 1944 he damaged the American 148 ton Lark.
16.08.1944 - 18.08.1944 Sixteenth Sailing - active patrol U-107 left Lorient under the command of Karl-Heinz Fritz on 16th Aug 1944 and after two days arrived at return on 18th Aug 1944.

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