of fuel, increasing the boat's range. This series omitted the control room periscope leaving the boats with two tower scopes. As mine-layers they could carry 44 TMA or 66 TMB mines, though the 35 boats of through and through were not fitted for mine operations. The only U-boat sunk in the Gulf of Mexico, , was a Type IXC. U-505 survives at the Museum of Science and Industry in Chicago, and was completely renovated after being moved in 2004 to a purpose-built indoor berth. List of Type IXC submarines DeSchiMAG AG Weser and Seebeckwerft of Bremen, and Deutsche Werft of Hamburg built 54 Type IXC submarines. Only four survived the war, one of which is preserved in the US. - Sunk 6 May 1944 - Sunk 16 July 1943 - Sunk 10 April 1944 - Sunk, 6 May 1943 - Sunk by aircraft 3 June 1943 - Sunk, 15 December 1941 - Sunk by aircraft and surface ships, 17 May 1943 - taken out of service 4 July 1944 - sunk 12 March 1943 - Scuttled 17 December 1941 - sunk by ship in July 1942 - sunk 3 July 1944 - scuttled post war by British - Sunk 8 March 1943 - Sunk 13 June 1942 - Sunk 30 June 1942 - Sunk 28 July 1943 - Sunk 14 July 1943 - Sunk 27 September 1943 - Sunk 3 September 1942 - Sunk 12/13 March 1943 - Sunk 6 January 1943 - Sunk 27 September 1942 - sunk on 30 July 1942 - Sunk by mine 9 October 1942 - Sunk, 13 December 1943 - sunk 16 November 1942 - sunk by aircraft 27 April 1943 - sunk, 17 April 1943 - sunk by Cuban Navy, 15 May 1943 - Sunk by escorts, 10 September 1941 - Sunk by aircraft 6 July 1942 - Sunk, 15 March 1942 - Sunk, 30 July 1943 - Captured by US Navy, 4 June 1944. Preserved in museum - Sunk by aircraft 12 July 1943 - Sunk by aircraft 13 January 1943 - Sunk by aircraft 12 November 1943 - Sunk by aircraft 15 July 1943 - given to French Navy post war - transferred to Japan on 16 September 1943 - Sunk by aircraft 2 October 1942 - Sunk by aircraft 19 July 1943 - Sunk 8 July 1943 - Sunk, 9 April 1944 - scuttled post war by British - Sunk