USS Seneca (AT-91)

History
United States
Name	USS Seneca
Builder	Cramp Shipbuilding Co., Philadelphia
Yard number	546
Laid down	7 September 1942
Launched	2 February 1943
Commissioned	30 April 1943
Decommissioned	July 1971
Reclassified	ATF-91, 15 May 1944
Stricken	30 October 1985
Fate	Disposed of as a target, 21 July 2003
Notes	Served as floating laboratory space at the Annapolis, Maryland, site of the Carderock Division of the Naval Surface Warfare Center.
General characteristics
Class and type	Navajo-class fleet tug
Displacement	1,235 long tons (1,255 t)
Length	205 ft (62 m)
Beam	38 ft 6 in (11.73 m)
Draft	15 ft 4 in (4.67 m)
Propulsion	Diesel-electric four General Motors 12-278A diesel main engines driving four General Electric generators and three General Motors 3-268A auxiliary services engines single screw 3,600 shp (2,685 kW)
Speed	16 knots (30 km/h; 18 mph)
Complement	85
Armament	1 × 3 in (76 mm) gun 2 × twin 40 mm gun mounts 2 × single 20 mm guns

USS Seneca (AT-91) was a Navajo-class fleet tug constructed for the United States Navy during World War II. Her purpose was to aid ships, usually by towing, on the high seas or in combat or post-combat areas, plus "other duties as assigned." She served in the Atlantic Ocean performing various tasks.

Seneca was laid down at Philadelphia on 7 September 1942 by the Cramp Shipbuilding Co. and launched on 2 February 1943. The vessel was commissioned at the Philadelphia Navy Yard on 30 April 1943.