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Crater-class cargo ship

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World War II U.S. Navy cargo ship class

Class overview
USSLivingston (AK-222)
Operators	United States Navy
Built	1942–1944
In commission	1942–1948
Completed	65
General characteristics
Type	Cargo ship
Displacement	4,023 long tons (4,088 t) (standard) 14,550 long tons (14,780 t) (full load)
Length	441 ft 6 in (134.57 m)
Beam	56 ft 11 in (17.35 m)
Draft	28 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	1 × Verticaltriple-expansion reciprocating steam engine, 1 ×screw propeller
Speed	12.5 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)
Complement	206
Armament	1 ×5-inch (127 mm)/50 caliber gun 1 ×3-inch (76 mm)/50 caliber gun 2 ×40 mm (1.57 in) Bofors guns 6 ×20 mm (0.79 in) Oerlikon cannons or 1 ×5-inch/38-caliber gun 4 × 40 mm guns 12 × 20 mm guns

TheCrater-class cargo ship were converted EC2-S-C1 type,Liberty cargo ships, constructed by theUnited States Maritime Commission (USMC) for use by theUS Navy duringWorld 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]

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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USSAludra (AK-72) Lost in action fromJapanese torpedo on 23 June 1943 south ofMakira island.^[3]
USSDeimos (AK-78) Damaged by torpedo, 23 June 1943, then abandoned and scuttled south of Makira island.^[4]
USSSerpens (AK-97) Destroyed by an internal explosion while at anchor off Guadalcanal on 29 January 1945.^[5]

References

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^"Crater Class, U.S. Cargo Ships". The Pacific War Online Encyclopedia. Retrieved15 April 2014.
^Colton, Tim."Ship Design Codes used by the U.S. Maritime Commission". Retrieved3 August 2021.
^NavSource USSAludra
^NavSource USS Deimos (AK-78)
^Navsource USS Serpens (AK-97)

External links

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AK — Cargo Ships—Ships of the U.S. Navy, 1940–1945.

v t e Crater-class cargo ships
Crater Adhara Aludra Arided Carina Cassiopeia Celeno Cetus Deimos Draco Albireo Cor Caroli Eridanus Etamin Mintaka Murzim Sterope Serpens Bootes Lynx Lyra Triangulum Sculptor Ganymede Naos Caelum Hyperion Rotanin Allioth Alkes Giansar Grumium Rutilicus Alkaid Crux Alderamin Zaurak Shaula Matar Sabik Baham Menkar Azimech Lesuth Megrez Alnitah Leonis Phobos Arkab Melucta Propus Seginus Syrma Venus Ara Ascella Cheleb Pavo Situla Kenmore Livingston De Grasse Prince Georges Allegan Appanoose
List of auxiliaries of the United States Navy

Crater-class cargo ships

List of auxiliaries of the United States Navy

v t e Liberty ships
Lists	A B C D E F G H I Ja-Je J. F-J. W K L M N O P R S–Samtyne Samuel–Sy T U–V W–William G William H–Wy Z
Subtypes	Acubens-class general stores issue ship Armadillo class tanker Crater-class cargo ship Guardian-class radar picket ship List of Subtypes
Survivors	SSJohn W. Brown SSJeremiah O'Brien SSArthur M. Huddell SS Albert M. Boe
Other	Liberty Fleet Day Port Chicago disaster Project Liberty Ship
See also	Park ship (Canadian equivalent) Fort ship (British equivalent) Ocean ship (Anglo-American predecessor) Victory ship (American follow-on) Empire ship (British ships owned by theMinistry of War Transport)
Category List

v t e World War II Maritime Commission ship designs
Cargo designs	Type C1 Type C2 Type C3 Type C4 Type C5 (Type C6) (Type C7) (Type C8) (Type C9) Type N3
Emergency cargo	Liberty ship ("EC2-S-C1") Victory ship ("VC2-S-AP1")
Tanker	T1 tanker T2 tanker T3 tanker Liberty ship ("Z-ET1-S-C3")
Special-purpose	Type S2 ("Tacoma-class frigate") Type S3-S2-BP ("Landing Ship, Tank") Type S3-S2-BP1 ("Neptune-class cable layer") Type S4-S2-BB3 ("Casablanca-class escort carrier") Type S4-SE2-BD1 ("Gilliam-class attack transport") Type S4-SE2-BE1 ("Artemis-class attack cargo ship") "Crane vessel-Derrick Barge"
Miscellaneous-cargo	Type L6 ("Lakers") Type N ("Coastal Cargo") Type P1 ("Passenger") Type P2 ("Passenger") Type R ("Refrigerated") Type B ("Barge")
Tugs	Type V ("Tugs")
See also:-Empire ship,Fort ship,Park ship,Ocean ship.

v t e United States naval ship classes of World War II
Aircraft carriers	Lexington Ranger^S Yorktown Wasp^S Essex Midway^C
Light aircraft carriers	Independence Saipan^C
Escort carriers	Long Island Charger Bogue Sangamon Casablanca Commencement Bay
Battleships	Wyoming New York Nevada Pennsylvania New Mexico Tennessee Colorado North Carolina South Dakota Iowa Montana^X
Large cruisers	Alaska
Heavy cruisers	Pensacola Northampton Portland New Orleans Wichita^S Baltimore Oregon City^C Des Moines^C
Light cruisers	Omaha Brooklyn Atlanta Cleveland Fargo^C Juneau^C Worcester^C CL-154^X
Gunboats	Dubuque Sacramento^S Asheville Erie Niagara^S Vixen^S St. Augustine^S Jamestown^S Williamsburg^S Plymouth^S Hilo^S Dauntless^S Nourmahal^S Temptress Action PGM-1 PGM-9
Destroyers	Sampson Caldwell Wickes Clemson Farragut Porter Mahan Gridley Bagley Somers Benham Sims Benson Stevenson^X Gleaves Fletcher Allen M. Sumner Robert H. Smith Gearing
Destroyer escorts	Evarts Buckley Cannon Edsall Rudderow John C. Butler
Patrol frigates	Asheville Tacoma
Patrol boats	PT boat Fairmile B (Canadian)
Minelayers	Oglala^S Wassuc^S Monadnock^S Miantonomah^S Terror^S Keokuk^S Salem^S Weehawken^S Camanche Chimo
Minesweepers	Lapwing Raven Auk Eagle^S Hawk Admirable
Submarines	O R S Barracuda Argonaut^S Narwhal Dolphin^S Cachalot Porpoise Salmon Sargo Tambor Mackerel Gato Balao Tench
Tankers	T1 tanker T2 tanker T3 tanker
Cargo ships	Liberty Victory Haskell Andromeda Arcturus Artemis Tolland Alstede Aldebaran Adria Acubens Arctic Denebola Hyades Mizar
Auxiliary ships	Ammunition Floating drydock Repair dock Barracks Collier Combat stores Destroyer tender Depot High-speed transport Hospital Ice cream barge Net laying Motor torpedo boat tender Reefer Oiler Repair Seaplane tender Submarine tender Underway replenishment
C Completed after the war S Single ship of class X Cancelled

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