SS Isaac M. Singer

SS Isaac M. Singer was a Liberty ship built in the United States during World War II. She was named after Isaac M. Singer, an American inventor, actor, and businessman. He made important improvements in the design of the sewing machine and was the founder of what became one of the first American multi-national businesses, the Singer Sewing Machine Company.

United States
Name: Isaac M. Singer
Namesake: Isaac M. Singer
Owner: War Shipping Administration (WSA)
Operator: Moore-McCormack Lines, Inc.
Ordered: as type (EC2-S-C1) hull, MC hull 2506
Awarded: 23 April 1943
Builder: St. Johns River Shipbuilding Company, Jacksonville, Florida[1]
Cost: $917,824[2]
Yard number: 70
Way number: 4
Laid down: 17 October 1944
Launched: 19 November 1944
Sponsored by: Mrs. James R.P. Bell, Jr.
Completed: 27 November 1944
Fate: Laid up in the National Defense Reserve Fleet, Mobile, Alabama, 20 September 1948
Status: Sold for scrapping, 13 May 1970, withdrawn from fleet, 28 May 1970
General characteristics [3]
Class and type:
  • 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)
Speed: 11.5 knots (21.3 km/h; 13.2 mph)
  • 562,608 cubic feet (15,931 m3) (grain)
  • 499,573 cubic feet (14,146 m3) (bale)


Isaac M. Singer was laid down on 17 October 1944, under a Maritime Commission (MARCOM) contract, MC hull 2506, by the St. Johns River Shipbuilding Company, Jacksonville, Florida; she was sponsored by Mrs. William C. Calvin, the wife of the president of the International Brotherhood of Boilermakers and Iron Shippbuilders of America, and was launched on 19 November 1944.[1][2]


She was allocated to the Moore-McCormack Lines, Inc., on 27 November 1944. On 20 September 1948, she was laid up in the National Defense Reserve Fleet, Mobile, Alabama. She was sold for scrapping, along with SS Stephen Furdek, on 13 May 1970, to Union Minerals & Alloys Corp., for $64,202. She was removed from the fleet, 28 May 1970.[4]



  • "St. John's River Shipbuilding, Jacksonville FL". 16 October 2010. Retrieved 31 January 2020.
  • Maritime Administration. "Isaac M. Singer". Ship History Database Vessel Status Card. U.S. Department of Transportation, Maritime Administration. Retrieved 31 January 2020.
  • Davies, James (May 2004). "Specifications (As-Built)" (PDF). p. 23. Retrieved 31 January 2020.CS1 maint: ref=harv (link)
  • "SS Isaac M. Singer". Retrieved 31 January 2020.