USS Seawolf (SSN-21)

USS Seawolf (SSN-21)
History
United States
NamesakeSeawolf
Awarded9 January 1989
BuilderGeneral Dynamics Electric Boat
Laid down25 October 1989
Launched24 June 1995
Commissioned19 July 1997
HomeportNaval Base Kitsap-Bangor
MottoCave Lupum (English: "Beware the Wolf")
Statusin active service
Badge
General characteristics
Class & typeSeawolf-class submarine
Length353 ft (108 m)
Beam40 ft (12 m)
Draft36 ft (11 m)
Propulsion
  • 1 S6W PWR 220 MW (300,000 hp), HEU 93.5%
  • 1 secondary propulsion submerged motor
  • 2 steam turbines 57,000 shp (43 MW)
  • 1 shaft
  • 1 pump-jet propeller
Speed25+ knots submerged, 18+ knots surfaced
Test depthGreater than 800 ft (240 m)
Complement15 officers and 101 enlisted
Armament8 × 26.5-inch torpedo tubes, sleeved for 21-inch weapons (up to 50 Tomahawk land attack missile/Harpoon anti-ship missile/Mk 48 guided torpedo carried in torpedo room)

USS Seawolf (SSN-21) is a nuclear-powered fast attack submarine and the lead ship of her class. She is the fourth submarine of the United States Navy named for the seawolf.

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