USS Seawolf (SSN-21)

This article is about a U.S. Navy submarine. For other uses, see Seawolf (disambiguation).
For other ships with the same name, see USS Seawolf.

USS Seawolf (SSN-21)
USS Seawolf conducting sea trials in 1996.
History
United States
NamesakeSeawolf
Awarded9 January 1989
BuilderGeneral Dynamics Electric Boat
Laid down25 October 1989
Launched24 June 1995
Commissioned19 July 1997
Home portNaval 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 (hull number 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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