German submarine U-42 (1939)

German submarine U-42 was a Type IXA U-boat of Nazi Germany's Kriegsmarine that operated during World War II.

U-37, (an identical U-boat to U-42) at Lorient in 1940
History
Nazi Germany
NameU-42
Ordered21 November 1936
BuilderDeSchiMAG AG Weser, Bremen
Yard number947
Laid down21 December 1937
Launched16 February 1939
Commissioned15 July 1939
FateSunk on 13 October 1939 southwest of Ireland. 26 dead and 20 survivors
General characteristics
Class and typeType IXA submarine
Displacement
  • 1,032 t (1,016 long tons) surfaced
  • 1,153 t (1,135 long tons) submerged
Length
  • 76.50 m (251 ft) o/a
  • 58.75 m (192 ft 9 in) pressure hull
Beam
  • 6.51 m (21 ft 4 in) o/a
  • 4.40 m (14 ft 5 in) pressure hull
Height9.40 m (30 ft 10 in)
Draught4.70 m (15 ft 5 in)
Installed power
  • 4,400 PS (3,200 kW; 4,300 bhp) (diesels)
  • 1,000 PS (740 kW; 990 shp) (electric)
Propulsion
Speed
  • 18.2 knots (33.7 km/h; 20.9 mph) surfaced
  • 7.7 knots (14.3 km/h; 8.9 mph) submerged
Range
  • 10,500 nmi (19,400 km; 12,100 mi) at 10 knots (19 km/h; 12 mph) surfaced
  • 65–78 nmi (120–144 km; 75–90 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth230 m (750 ft)
Complement4 officers, 44 enlisted
Armament
Service record
Part of:
Identification codes: M 05 024
Commanders:
  • Kptlt. Rolf Dau
  • 15 July – 13 October 1939
Operations:
  • 1 patrol:
  • 2 – 13 October 1939
Victories: 1 merchant ship damaged
(4,803 GRT)

U-42 was ordered by Kriegsmarine in November 1936. Her keel was laid down in December 1937; she was launched in February 1939 and commissioned in July 1939.

U-42 had a very short career, being sunk while still on her first war patrol. During her service with Kriegsmarine, the boat conducted only one training patrol and one war patrol. Over the latter she damaged one enemy vessel of 4,803 gross register tons (GRT). Both her patrols were as part of the 6th U-boat Flotilla.

U-42 was sunk southwest of Ireland on 13 October 1939. Out of a crew of 46, 20 survived and 26 went down with the submarine.

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