German World War II submarine
German submarine "U-847" was a long-range Type IXD2 U-boat built for Nazi Germany's "Kriegsmarine" during World War II. Laid down in Bremen and launched on 5 September 1942.
Design.
German Type IXD2 submarines were considerably larger than the original Type IXs. "U-847" had a displacement of when at the surface and while submerged. The U-boat 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 MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines plus two MWM RS34.5S six-cylinder four-stroke diesel engines for cruising, producing a total of for use while surfaced, two Siemens-Schuckert 2 GU 345/34 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-847" was fitted with six torpedo tubes (four fitted at the bow and two at the stern), 24 torpedoes, one SK C/32 naval gun, 150 rounds, and a SK C/30 with 2575 rounds as well as two C/30 anti-aircraft guns with 8100 rounds. The boat had a complement of fifty-five.
Service history.
She was commanded for her short career by four Knight's Cross recipients, each a U-boat ace in their own right, although she neither sank nor damaged any vessels. They were:
She joined 4th Flotilla for training on 23 January 1943, where she remained until 30 June 1943. She then joined 12th Flotilla for active service until 27 August 1943 when she was sunk while providing logistical support for other U-boats operating in the area.
Fate.
"U-847" was sunk by air-launched FIDO torpedoes dropped from US Avenger and Wildcat aircraft operating from the escort carrier on 27 August 1943 in the Atlantic Ocean at position . All 63 hands were lost.
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