Type VII submarine

U-995 Type VIIC/41 at the Laboe Naval Memorial near Kiel
Class overview
NameType VII
Builders
Operators
Preceded byType UB III, Vetehinen class
Succeeded byType XXI (Late-war replacement)
Subclasses
  • Built
    • Type VIIA
    • Type VIIB
    • Type VIIC
    • Type VIIC/41
    • Type VIID
    • Type VIIF
  • Not built
    • Type VIIC/42
    • Type VIIC/43
    • Type VIIE
Cost4,189,000 
In commission1936 – 1970
Completed704
Preserved1
General characteristics (Type VIIC)
Displacement
Length
  • 67.20 m (220 ft 6 in) o/a
  • 50.50 m (165 ft 8 in) pressure hull
Beam
Draft4.74 m (15 ft 7 in)
Propulsion
  • 2 ×  diesel engines totalling 3,200 bhp (2,400 kW) surfaced
  • 2 ×  electrical engines totalling 750 hp (560 kW) submerged
Speed
  • 17.7 knots (32.8 km/h; 20.4 mph) surfaced
  • 7.6 knots (14.1 km/h; 8.7 mph) submerged
Range
  • 8,500 nmi (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph) surfaced
  • 80 nmi (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth
  • 230 m (750 ft)
  • Calculated crush depth: 250–295 m (820–968 ft)
Complement44–52 officers & ratings
Armament

The Type VII was a class of medium attack U-boats built for Nazi Germany's Kriegsmarine from 1935 to 1945. Designed for attacking the North Atlantic convoy lanes, they formed the backbone ot the German effort in the Battle of the Atlantic during World War II. The Type VII came in several variants, apart from four types Type VIIA, Type VIIB, Type VIIC and Type VIIC/41, which were each time improvements of the previous version, there was also a mine laying version Type VIID and a torpedo supply U-boat Type VIIF.

704 Type VII U-boats were built by the end of the war. The lone surviving example, U-995, is on display at the Laboe Naval Memorial located in Laboe, Schleswig-Holstein, Germany.

At the start of the Second World War the Type VII class was  together with the British U, S and T class and Dutch O 21 class  one of the most advanced submarine classes in service.