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German submarine U-757

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Title: German submarine U-757  
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Subject: Boston Navy Yard, List of U-boats of Germany, Captain-class frigate, Convoy HX 228
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German submarine U-757

Career (Nazi Germany)
Name: U-757
Ordered: 9 October 1939[1]
Builder: Kriegsmarinewerft Wilhelmshaven
Laid down: 18 May 1940[1]
Launched: 14 December 1941[1]
Commissioned: 28 February 1942[1]
Status: Destroyed 8 January 1944[1]
General characteristics
Type: Type VIIC submarine
Displacement: 769 tonnes (757 long tons) surfaced
871 t (857 long tons) submerged
Length: 67.1 m (220 ft 2 in) o/a
50.5 m (165 ft 8 in) pressure hull
Beam: 6.2 m (20 ft 4 in) o/a
4.7 m (15 ft 5 in) pressure hull
Draft: 4.74 m (15 ft 7 in)
Propulsion: 2 × supercharged Germaniawerft 6-cylinder 4-stroke M6V 40/46 diesel engines, totalling 2,800–3,200 bhp (2,100–2,400 kW). Max rpm: 470-490
2 × electric motors, totalling 750 shp (560 kW) and max rpm: 296
Speed: 17.7 knots (20.4 mph; 32.8 km/h) surfaced
7.6 knots (8.7 mph; 14.1 km/h) submerged
Range: 15,170 km (8,190 nmi) at 10 kn (19 km/h) surfaced
150 km (81 nmi) at 4 kn (7.4 km/h) submerged
Test depth: 230 m (750 ft)
Crush depth: 250–295 m (820–968 ft)
Complement: 44–52 officers & ratings
Armament: • 5 × 533 mm (21 in) torpedo tubes (4 bow, 1 stern)
• 14 × torpedoes or 26 TMA mines
• 1 × C35 88mm gun/L45 deck gun (220 rounds)
• Various AA guns

German submarine U-757 was a Type VIIC U-boat built for the German Kriegsmarine for service during World War II. Launched from Werk 140at the Kriegsmarinewerft (KMW) in Wilhelmshaven Lower Saxony (Then, the Free State of Oldenburg), U-757 served with 6th U-boat Flotilla from February 28, 1942 to January 8, 1944 under the command of Korvetkapitän Friedrich Deetz.[1]


U-757's first victims were the British transport vessel HMS LCT-2398 - destroying 291 tons of shipping - in the HX-228 convoy, and the American merchant vessel William C. Gorgas- destroying a further 7,197 tons of shipping. Both incidents occurred on March 11, 1943, fourteen days into her twenty-five day long third patrol. Of the seventy-three crewmen on board the Gorgas, twenty-two perished.

On her fourth patrol, U-757 sank the Norwegian Fernhill on August 7, 1943, thirty-one days into her sixty day patrol, 4,116 tons of shipping lost in the sea. Of the ship's forty-four crewmen, forty survived the attack, being rescued by the American tanker Idaho two days later.

On January 8, 1944 in the North Atlantic, south-west of Iceland, U-757 was hit by depth charges from the British frigate HMS Bayntun and the Canadian corvette HMCS Camrose. U-757 went down with all 49 seamen.


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