HMS Onyx (S21)

HMS Onyx
History
United Kingdom
NameHMS Onyx
NamesakeOnyx
BuilderCammell Laird, Birkenhead
Laid down16 November 1964
Launched18 August 1966
Commissioned20 November 1967
Decommissioned1991
FateScrapped May 2014
General characteristics as designed
Class & typeOberon-class submarine
Displacement
  • 1,610 tons standard
  • 2,030 tons full load surfaced
  • 2,410 tons full load submerged
Length
Beam26.5 feet (8.1 m)
Draught18 feet (5.5 m)
Propulsion
  • 2 × Admiralty Standard Range 16 VMS diesel generators
  • 2 × 3,000 shaft horsepower (2,200 kW) electric motors
  • 2 shafts
Speed
  • 17 knots (31 km/h; 20 mph) submerged
  • 12 knots (22 km/h; 14 mph) surfaced
Complement68
Sensors &
processing systems
  • Type 186 and Type 187 sonars
  • I-band surface search radar
Armament
  • 8 × 21-inch (530 mm) torpedo tubes (6 forward, 2 aft)
  • 24 torpedoes

HMS Onyx was an Oberon-class submarine of the Royal Navy.

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