U-Boat Operations

Operations information for U-203
05.06.1941 - 29.06.1941 First Sailing - active patrol U-203 left Kiel under the command of Rolf Mützelburg on 5th Jun 1941 and arrived at St. Nazaire on 29th Jun 1941 after three and a half weeks. Rolf Mützelburg hit two ships on this patrol and both of them were in convoy: One was from convoy HX-133 and one was from convoy OB-336. On 24th Jun 1941 he sank the Norwegian 4,402 ton Soløy, sailing with convoy HX-133. On 24th Jun 1941 he sank the British 4,956 ton Kinross, a member of convoy OB-336. You can read more about the Norwegian ship listed for this patrol at www.warsailors.com. Click the link for more information on Soløy.
10.07.1941 - 31.07.1941 Second Sailing - active patrol On the 10th Jul 1941, U-203 left St. Nazaire under the command of Rolf Mützelburg and returned to St. Nazaire on 31st Jul 1941 after three weeks on patrol. Rolf Mützelburg hit three ships on this patrol and all of them were in convoy, all of them from convoy OG-69. On 27th Jul 1941 he sank the British 2,475 ton Hawkinge, part of convoy OG-69. On 28th Jul 1941 he sank the British 1,330 ton Lapland, from convoy OG-69. On 28th Jul 1941 he sank the Swedish 1,516 ton Norita, sailing with convoy OG-69.
20.09.1941 - 30.09.1941 Third Sailing - active patrol U-203 departed under Rolf Mützelburg from St. Nazaire on 20th Sep 1941 and arrived at Brest on 30th Sep 1941 after one and a half weeks. Rolf Mützelburg hit three ships on this patrol and all of them were in convoy, all of them from convoy HG-73. On 26th Sep 1941 he sank the British 1,374 ton Cortes, a member of convoy HG-73. On 26th Sep 1941 he sank the Norwegian 2,842 ton Varangberg, part of convoy HG-73. On 26th Sep 1941 he sank the British 3,442 ton Avoceta, from convoy HG-73. You can read more about the Norwegian ship listed for this patrol at www.warsailors.com. Click the link for more information on Varangberg.
18.10.1941 - 12.11.1941 Fourth Sailing - active patrol U-203 left Brest under the command of Rolf Mützelburg on 18th Oct 1941 and returned three and a half weeks later to Brest on 12th Nov 1941. Rolf Mützelburg hit two ships on this patrol and both of them were in convoy, both of them were from convoy SC-52. On 3rd Nov 1941 he sank the British 4,830 ton Everoja, sailing with convoy SC-52. On 3rd Nov 1941 he sank the British 5,626 ton Empire Gemsbuck, a member of convoy SC-52.
25.12.1941 - 29.01.1942 Fifth Sailing - active patrol On the 25th Dec 1941, U-203 left Brest under the command of Rolf Mützelburg and arrived back at Brest five weeks later on 29th Jan 1942. Rolf Mützelburg hit four ships on this patrol. On 15th Jan 1942 he sank the Portugese 632 ton Catalina. On 17th Jan 1942 he sank the Norwegian 1,345 ton Octavian. On 21st Jan 1942 he damaged the Canadian 888 ton North Gaspe. On 22nd Jan 1942 he sank the British 364 ton HMS Rosemonde. You can read more about the Norwegian ship listed for this patrol at www.warsailors.com. Click the link for more information on Octavian.
12.03.1942 - 30.04.1942 Sixth Sailing - active patrol U-203 departed under Rolf Mützelburg from Brest on 12th Mar 1942 and returned to Brest on 30th Apr 1942 after seven weeks on patrol. Rolf Mützelburg hit four ships on this patrol. On 10th Apr 1942 he sank the British 8,072 ton San Delfino. On 11th Apr 1942 he damaged the American 6,151 ton Harry F Sinclair, Jr. On 12th Apr 1942 he damaged the Panamanian 10,013 ton Stanvac Melbourne. On 14th Apr 1942 he sank the British 6,160 ton Empire Thrush.
03.06.1942 - 04.06.1942 Seventh Sailing U-203 left Brest under the command of Rolf Mützelburg on 3rd Jun 1942 and arrived at Lorient on 4th Jun 1942 after one day.
04.06.1942 - 29.07.1942 Eighth Sailing - active patrol On the 4th Jun 1942, U-203 left Lorient under the command of Rolf Mützelburg and after nearly eight weeks arrived at Brest on 29th Jul 1942. Rolf Mützelburg hit five ships on this patrol. On 26th Jun 1942 he sank the Brazilian 3,666 ton Pedrinhas. On 26th Jun 1942 he sank the British 5,216 ton Putney Hill. On 28th Jun 1942 he sank the American 7,176 ton Sam Houston. On 9th Jul 1942 he sank the British 6,914 ton Cape Verde. On 11th Jul 1942 he sank the Panamanian 10,013 ton Stanvac Palembang.
27.08.1942 - 18.09.1942 Ninth Sailing - active patrol U-203 departed under Rolf Mützelburg from Brest on 27th Aug 1942 and arrived back at Brest just over three weeks later on 18th Sep 1942.KL Mützelberg was killed in an accident during this patrol on the 11th September. His IWO, OL Hans Seidel took command of the boat afterwards.
15.10.1942 - 06.11.1942 Tenth Sailing - active patrol U-203 left Brest under the command of Hermann Kottmann on 15th Oct 1942 and after just over three weeks arrived at Lorient on 6th Nov 1942. Hermann Kottmann hit two ships on this patrol and both of them were in convoy, both of them were from convoy SL-125. On 29th Oct 1942 he sank the British 5,178 ton Hopecastle, part of convoy SL-125. On 30th Oct 1942 he sank the British 7,131 ton Corinaldo, from convoy SL-125.
06.12.1942 - 07.01.1943 Eleventh Sailing - active patrol On the 6th Dec 1942, U-203 left Lorient under the command of Hermann Kottmann and arrived at Brest on 7th Jan 1943 after four and a half weeks.
03.04.1943 - 25.04.1943 Twelfth Sailing - active patrol U-203 departed under Hermann Kottmann from Brest on 3rd Apr 1943. The boat was lost on 25th Apr 1943.

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