Crater-class cargo ship

Summary

The Crater-class cargo ship were converted EC2-S-C1 type, Liberty cargo ships, constructed by the United States Maritime Commission (USMC) for use by the US Navy during World War II.[1] The designation 'EC2-S-C1': 'EC' for Emergency Cargo, '2' for a ship between 400 and 450 ft (120 and 140 m) long (Load Waterline Length), 'S' for steam engines, and 'C1' for design C1. [2]

USS Livingston (AK-222)
Class overview
Operators United States Navy
Built1942–1944
In commission1942–1948
Completed65
General characteristics
TypeCargo ship
Displacement
  • 4,023 long tons (4,088 t) (standard)
  • 14,550 long tons (14,780 t) (full load)
Length441 ft 6 in (134.57 m)
Beam56 ft 11 in (17.35 m)
Draft28 ft 4 in (8.64 m)
Installed power
  • 2 × Oil fired 450 °F (232 °C) boilers, operating at 220 psi (1,500 kPa) ,
  • 2,500 shp (1,900 kW)
Propulsion
Speed12.5 kn (23.2 km/h; 14.4 mph)
Capacity
  • 7,800 t (7,700 long tons) DWT
  • 444,206 cu ft (12,578.5 m3) (non-refrigerated)
Complement206
Armament

The class was named for the lead ship of its type, USS Crater (AK-70), with most ships in the class being named for astronomical bodies. Its 65 hulls were among the largest US Navy cargo ship classes.

The ships were propelled by a reciprocating steam engine using a single screw with a power of 2,500 hp (1,864 kW) shaft.

Notable incidents

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References

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  1. ^ "Crater Class, U.S. Cargo Ships". The Pacific War Online Encyclopedia. Retrieved 15 April 2014.
  2. ^ Colton, Tim. "Ship Design Codes used by the U.S. Maritime Commission". Retrieved 3 August 2021.
  3. ^ navsource.org USS Aludra
  4. ^ navsource.org USS Deimos (AK-78)
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  • AK — Cargo Ships—Ships of the U.S. Navy, 1940–1945.