History
United States
Name	Benjamin F. Coston
Namesake	Benjamin F. Coston
Owner	War Shipping Administration (WSA)
Operator	Union Sulphur & Oil Co. Inc.
Ordered	as type (EC2-S-C1) hull, MC hull 2318
Builder	J.A. Jones Construction, Panama City, Florida
Cost	$925,723[1]
Yard number	59
Way number	3
Laid down	31 July 1944
Launched	6 September 1944
Completed	23 September 1944
Identification	Call sign: KSSN [1]
Fate	Placed in National Defense Reserve Fleet, Hudson River Reserve Fleet, Jones Point, New York, 14 May 1946 Placed in National Defense Reserve Fleet, Wilmington, North Carolina, 21 September 1947 Sold for scrapping, 8 October 1964
General characteristics [2]
Class and type	Liberty ship type EC2-S-C1, standard
Tonnage	10,865 LT DWT 7,176 GRT
Displacement	3,380 long tons (3,434 t) (light) 14,245 long tons (14,474 t) (max)
Length	441 feet 6 inches (135 m) oa 416 feet (127 m) pp 427 feet (130 m) lwl
Beam	57 feet (17 m)
Draft	27 ft 9.25 in (8.4646 m)
Installed power	2 × Oil fired 450 °F (232 °C) boilers, operating at 220 psi (1,500 kPa) 2,500 hp (1,900 kW)
Propulsion	1 × triple-expansion steam engine,  (manufactured by General Machinery Corp., Hamilton, Ohio) 1 × screw propeller
Speed	11.5 knots (21.3 km/h; 13.2 mph)
Capacity	562,608 cubic feet (15,931 m3) (grain) 499,573 cubic feet (14,146 m3) (bale)
Complement	38–62 USMM 21–40 USNAG
Armament	Varied by ship Bow-mounted 3-inch (76 mm)/50-caliber gun Stern-mounted 4-inch (102 mm)/50-caliber gun 2–8 × single 20-millimeter (0.79 in) Oerlikon anti-aircraft (AA) cannons and/or, 2–8 × 37-millimeter (1.46 in) M1 AA guns

SS Benjamin F. Coston was a Liberty ship built in the United States during World War II. She was named after Benjamin F. Coston, a US Navy officer and scientist. Coston was the chief scientist at the Washington Navy Yard, and is credited with inventing the Coston Signal Flare.

Benjamin F. Coston was laid down on 31 July 1944, under a Maritime Commission (MARCOM) contract, MC hull 2318, by J.A. Jones Construction, Panama City, Florida; and launched on 6 September 1944.^[3][1]

She was allocated to Union Sulphur & Oil Co., Inc., 23 September 1944. On 27 October 1945, she struck a mine while sailing to Genoa, Italy. On 14 May 1946, she was laid up in the National Defense Reserve Fleet, Hudson River Reserve Fleet, Jones Point, New York.^[4]

She was reallocated to Union Sulphur & Oil Co. Inc., 10 July 1946, 28 March 1947, and 15 August 1947, before being placed in the National Defense Reserve Fleet, Wilmington, North Carolina, 21 September 1947.^[4]

She was sold for scrapping, 9 July 1964, to Imperial Salvage Corp., for $48,620. She was withdrawn from the fleet, 8 October 1964.^[4]