German submarine U-80 (1941)

German submarine U-80 was a Type VIIC submarine of Nazi Germany's Kriegsmarine during World War II. She was laid down at the Bremer Vulkan Vegesacker Werft in Bremen as yard number 8 on 17 April 1940, launched on 11 February 1941 and commissioned on 8 April under Oberleutnant zur See Georg Staats.

U-80 spent her career as a training boat, first with the 1st U-boat Flotilla, then the 26th, 24th, 23rd and 21st flotillas. She sank or damaged no ships, but was herself sunk in a diving accident west of Pillau (now Baltiysk in modern Russia), on 28 November 1944.

Design
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-80 had a displacement of 769 t when at the surface and 871 t while submerged. She had a total length of 67.10 m, a pressure hull length of 50.50 m, a beam of 6.20 m, a height of 9.60 m, and a draught of 4.74 m. The submarine was powered by two MAN M6V 40/46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2800 to 3200 PS for use while surfaced, two Brown, Boveri & Cie GG UB 720/8 double-acting electric motors producing a total of 750 PS for use while submerged. She had two shafts and two 1.23 m propellers. The boat was capable of operating at depths of up to 230 m.

The submarine had a maximum surface speed of 17.7 kn and a maximum submerged speed of 7.6 kn. When submerged, the boat could operate for 80 nmi at 4 kn; when surfaced, she could travel 8500 nmi at 10 kn. U-80 was fitted with two 53.3 cm torpedo tubes at the bow, fourteen torpedoes, one 8.8 cm SK C/35 naval gun, 220 rounds, and a 2 cm C/30 anti-aircraft gun. The boat had a complement of between forty-four and sixty.