German submarine U-778 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine in World War II. She only completed one combat patrol and sank no Allied ships. She was surrendered to the Allies at Bergen on the 8 May 1945. Service history The boat arrived at Horten in Norway on 28 February 1945 under the command of Kptlt. Ralf Jürs. She left Horten on her only war patrol on 4 March, completing the 23-day patrol on the 26 March 1945 at Bergen in Norway. No ships were sunk during the patrol and the U-boat was still at Bergen when she was surrendered to the Allies some six weeks later on 9 May 1945. On 4 December 1945, she was being towed offshore by the Royal Navy, to be scuttled as part of Operation Deadlight, but foundered and sank before reaching the scuttling ground, at a point 55°32′N 7°7′W, 16 nautical miles (30 km; 18 mi) North East of Malin Head in around 70 metres (230 ft) of water. Proposed salvage The wreck was rediscovered by marine archaeologist Innes McCartney in 2001. In 2007, Derry City Council announced plans to raise the boat to be the main exhibit of a new maritime museum. Many of the other Operation Deadlight U-boats were used for target practice and sunk by gunfire, torpedoes, rockets or bombs. U-778, by contrast, is remarkably intact and lies in relatively shallow water. On 3 October 2007 an Irish diver died whilst filming the wreck as part of the salvage project. In November 2009, a spokesman from the council's heritage museum service announced the salvage project had been cancelled for cost reasons.