History
United States
Name	John Barton Payne
Namesake	John Barton Payne
Owner	War Shipping Administration (WSA)
Operator	Isthmian Steamship Co.
Ordered	as type (Z-EC2-S-C2) hull, MC hull 1535
Builder	J.A. Jones Construction, Panama City, Florida
Cost	$1,862,684[1]
Yard number	17
Way number	5
Laid down	11 August 1943
Launched	23 October 1943
Completed	30 November 1943
Identification	Call Signal: KYLV [1]
Fate	Laid up in National Defense Reserve Fleet, Mobile, Alabama, 21 November 1947 Sold for scrapping, 28 October 1971
General characteristics [2]
Class and type	type Z-EC2-S-C2, army tank transport
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 Filer and Stowell, Milwaukee, Wisconsin) 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 John Barton Payne was a Liberty ship built in the United States during World War II. She was named after John Barton Payne, the counsel for the Emergency Fleet Corporation during World War I, Chairman of the U.S. Shipping Board from 1919 until February 1920, and the United States Secretary of the Interior under Woodrow Wilson.

John Barton Payne was laid down on 11 August 1943, under a Maritime Commission (MARCOM) contract, MC hull 1535, by J.A. Jones Construction, Panama City, Florida; she was launched on 23 October 1943.^[3][1]

She was allocated to Isthmian Steamship Co., on 30 November 1943. On 21 November 1947, she was laid up in the National Defense Reserve Fleet, in Mobile, Alabama. On 28 October 1971, she was sold, along with 13 other ships, for $513,800, to Union Minerals and Alloys Corporation, to be scrapped. She was removed from the fleet on 22 February 1972.^[4][5]