United States D-class submarine

United States D-class submarine
USS D-1 USS D-1
Class overview
Builders:	Fore River Shipbuilding, Quincy, Massachusetts
Operators:	United States Navy
Preceded by:	C class
Succeeded by:	E class
Built:	April 1909–September 1910
In commission:	November 1909–March 1922
Completed:	3
Retired:	3
Preserved:	0
General characteristics
Type:	Submarine
Displacement:	288 long tons (293 t)
Length:	134 ft 10 in (41.10 m)
Beam:	13 ft 11 in (4.24 m)
Draft:	11 ft 8 in (3.56 m)
Speed:	13 knots (24 km/h; 15 mph)
Complement:	15 officers and men
Armament:	4 × 18 in (457 mm) torpedo tubes

The D-class submarines were a class of three United States Navy submarines, built by the Fore River Shipbuilding Company of Quincy, Massachusetts, under a subcontract from the Electric Boat Company of Groton, Connecticut. All three ships served during World War I providing training for crews and officers, before the class was decommissioned, and sold for scrap in 1922.

Ships

• USS D-1 (SS-17) was launched in 8 September 1909 and was commissioned on 23 November 1909 as Narwhal. It was decommissioned on 8 February 1922 and sold afterwards.
• USS D-2 (SS-18) was launched in 16 June 1909 and was commissioned on 23 November 1909 as Grayling. It was decommissioned on 18 January 1922 and sold afterwards.
• USS D-3 (SS-19) was launched in 12 March 1910 and was commissioned on 8 September 1910 as Salmon. It was decommissioned on 20 March 1922 and sold afterwards.