Biber (submarine)

Example on display at Technikmuseum Speyer, Germany
Class overview
NameBiber
BuildersFlender Werke, Lübeck
Operators Kriegsmarine
Completed324
General characteristics Biber
TypeMidget submarine
Displacement5.7 tonnes[1]
Length8.9 m (29 ft)[2]
Beam1.6 m (5 ft 3 in)[2]
Height1.6 m (5 ft 3 in)
Propulsion32 hp (24 kW) Otto petrol engine,[2] 13 hp (9.7 kW) electric motor,[2]
Speed
  • 6.5 knots (12.0 km/h) surfaced
  • 5.3 knots (9.8 km/h) submerged
Range100 nautical miles (surfaced)[3]
Test depth20 m maximum[4]
Crew1
ArmamentTwo G7e (TIIIc) torpedoes or two Torpedomine Typ B (TMB)

Biber (German for "beaver") was a German midget submarine of the Second World War. Armed with two externally mounted 53-centimetre (21 in) torpedoes or mines, they were intended to attack coastal shipping. They were among the smallest submarines in the Kriegsmarine.

The Biber was hastily developed to help meet the threat of an Allied invasion of Europe. This resulted in basic technical flaws that, combined with the inadequate training of their operators, meant they never posed a real threat to Allied shipping, despite 324 submarines being delivered. One of the class's few successes was the sinking of the cargo ship Alan-A-Dale.

Several survive in museums, including one in operational condition.

  1. ^ Cite error: The named reference kemp188 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference V.E34 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Bullen was invoked but never defined (see the help page).
  4. ^ Paterson 2006, pp. 62-63.