German submarine U-1022  German submarine "U-1022" was a Type VIIC/41 U-boat of Nazi Germany's "Kriegsmarine". She was laid down on 6 May 1943 by Blohm & Voss in Hamburg, Germany, and commissioned on 7 June 1944, the day after the Allied landings in Normandy, with "Kapitänleutnant" Hans-Joachim Ernst in command. She sank two ships for a total of 1,720 metric tonnes. After the war she was handed over to the Allies and sunk in Operation Deadlight. German Type VIIC/41 submarines were preceded by the heavier Type VIIC submarines. "U-1022" had a displacement of when at the surface and while submerged. She had a total length of , a pressure hull length of , a beam of , a height of , and a draught of . The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of for use while surfaced, two Brown, Boveri & Cie GG UB 720/8 double-acting electric motors producing a total of for use while submerged. She had two shafts and two propellers. The boat was capable of operating at depths of up to . The submarine had a maximum surface speed of and a maximum submerged speed of . When submerged, the boat could operate for at ; when surfaced, she could travel at . "U-1022" was fitted with five torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one SK C/35 naval gun, (220 rounds), one Flak M42 and two C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty. "U-1022" was ordered by the "Kriegsmarine" on 13 June 1942. She was laid down less than one year later at Blohm & Voss, Hamburg on 6 May 1943 . "U-1022" was launched from Hamburg on 13 April 1944. She was formally commissioned later that year on 7 June 1944, the day after the Allied landings at Normandy. After her training (during which she travelled from Germany to Norway), "U-1022" left her home port of Bergen, Norway on her first and only patrol. During this patrol, which lasted 49 days, "U-1022" traveled from Norway to the southern coast of Iceland. In this time span she managed to sink two enemy vessels, the Panamanian steam merchant "Alcedo" for a loss of 1,392 tonnes and the British vessel, for a loss of 328 tonnes.