German World War II submarine
German submarine "U-274" was a Type VIIC U-boat of Nazi Germany's "Kriegsmarine" during World War II.
The submarine was laid down on 9 January 1942 at the "Bremer Vulkan" yard at Bremen-Vegesack as yard number 39. She was launched on 19 September 1942 and commissioned on 7 November under the command of "Oberleutnant zur See" Günther Jordan.
Design.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. "U-274" 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-274" 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-274" served with the 8th U-boat Flotilla for training from November 1942 to July 1943 and operationally with the 7th U-boat Flotilla from 1 August 1943. She carried out two patrols, but sank no ships.
She carried out short voyages between Kiel in Germany and Bergen and Trondheim in Norway over August 1943.
First patrol.
The boat departed Trondheim on 1 September 1943 and returned to the Norwegian port twelve days later on the 13th.
Second patrol and loss.
For her second sortie, the boat headed toward the Atlantic Ocean, via the gap between Iceland and the Faroe Islands. She was sunk by Hedgehog and depth charges dropped by the British destroyers and and a B-24 Liberator of No. 224 Squadron RAF on 23 October 1943.
The pilot of the Liberator was a Swiss national serving in the RAF. The intercom in the aircraft had been inadvertently left connected to the radio. As a result, ships of the nearby convoy escort heard an improvised commentary which was a great encouragement.
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