Carlsen?s navy career started as a Watch Officer aboard fleet escort vessel F7 in December 1939 and in April 1940 he became First Watch Officer with the 13th Minesweeping Flotilla. He joined the U-boat force in February 1941 and after six months training he joined U-251 as First Watch Officer, under the command of Kptlt Heinrich Timm. After six months training and sea trials, U-251 went on patrol and sank SS Jutland and also attacked Convoy PQ-17. In July 1942 he left U-251 to take the U-Boat Commanders course and on 24 October 1942 was given command of U-732. After six months as a training boat, U-732 embarked on its first patrol on 8 April 1943. On the 16 April the aircraft was attacked by RAF aircraft twice causing slight damage, it was attacked by the RAF again on the 19th and then the FAA on the 23rd but escaped unscathed, however on the 2 May 1943 a USAAF aircraft caused significant damage, causing U-732 to return to Brest for repairs. U-732 was sunk during her third patrol on 31 October 1943 in the mid-Atlantic near Tangier, by depth charges from the British anti-submarine trawler HMS Imperialist and the destroyer HMS Douglas. Carlsen was one of the 18 survivors from the crew of 49 and taken POW.
Oberleutnant zur See Claus-Peter Carlsen
Hand signed 5in x 7in photograph - numbered and certified on reverse.
Accompanied by matching biography card giving U-boat service details.