German World War II submarine
German submarine "U-716" was a Type VIIC U-boat built for Nazi Germany's "Kriegsmarine" for service during World War II.
Design.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. "U-716" 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 AEG GU 460/8–27 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-716" 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, and two twin C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.
Service history.
"U-716" took part in ten patrols between 15 April 1943 and 8 May 1945. She had her only success sinking the US freighter "Andrew G. Curtin" when she attacked convoy JW 56A on 26 January 1944. She also took credit for the sinking of US patrol torpedo boat "USS PTC-39" being transported by the freighter at the time. 
While in the Arctic sea on 23 April 1945, "U-716" was hit by depth charges by a hunter-killer group. The damage was serious enough to require retreating to Narvik before schedule, but not enough to cause any further problems.
Fate.
While in port awaiting repairs, VE Day occurred and the European theatre of the Second World War ended. Upon orders, Jürgen Thimme surrendered his vessel to the Allies in Narvik, Norway on 9 May 1945 and took her to Loch Eriboll in Scotland, where she was destroyed by aerial attack as part of Operation Deadlight on 11 December 1945.
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