by aircraft 21 November 1942 - Sunk, 22 April 1944 - Posted missing 31 January 1943 - Sunk, 30 October 1942 - Sunk 2 June 1943 - Sunk 23 February 1943 - Sunk, 25 August 1943 - Sunk on 22 March 1943 by aircraft Type IXC/40 Type IXC/40 was an improved Type IXC with slightly increased range and surfaced speed. The remains of are on display at Woodside Ferry Terminal, Birkenhead. List of Type IXC/40 submarines DeSchiMAG AG Weser and Seebeckwerft of Bremen, and Deutsche Werft of Hamburg, built 87 of this type. Type IXD Type IXD was significantly longer and heavier than the IXC/40. It was faster than the IXC but at the cost of slightly reduced maneuverability. They had three pairs of Daimler Benz diesels: two pairs for cruise and one for high speed or battery recharge. There were three variants: the IXD1, IXD2 and IXD/42. The IXD1 had unreliable engines and they were later converted for use in surface transport vessels. The IXD2 comprised most of the class and had a range of . The IXD/42, was almost identical but with more engine power ( instead of ). In 1943 and 1944 the torpedo tubes were removed from a number of IXD boats converted for transport use. In their new role they could transport 252 tonnes of cargo. The range was extended to . List of Type IXD submarines DeSchiMAG AG Weser of Bremen built 30 Type IXD U-boats. Several Type IXD/42 U-boats were contracted to be built by DeSchiMAG AG Weser of Bremen, but only two were commissioned. They were: was launched on 28 April 1944 and commissioned 27 March 1945. Her career ended in Operation Deadlight. was launched on 17 May 1944 but was badly damaged on 30 March 1945 by US bombs while still in the dockyard. , , and were laid down but construction halted on 30 September 1943 when all IXD/42 contracts were cancelled. References Bibliography External links Submarine classes World War II submarines of Germany