Type C1 ship

Type C1 was a designation for small cargo ships built for the United States Maritime Commission before and during World War II. Total production was 493 ships built from 1940 to 1945. The first C1 types were the smallest of the three original Maritime Commission designs, meant for shorter routes where high speed and capacity were less important. Only a handful were delivered prior to Pearl Harbor. But many C1-A and C1-B ships were already in the works and were delivered during 1942. Many were converted to military purposes including troop transports during the war.

The Type C1-M ship was a separate design, for a significantly smaller and shallower draft vessel. This design evolved as an answer for the projected needs for military transport and supply of the Pacific Ocean theater of World War II.^[1]

Type C1 ships under the control of the British Ministry of War Transport took an Empire name even if built with another name e.g. Cape Turner.

The United States Maritime Commission (MARCOM) was an agency of the United States government that was created by the Merchant Marine Act of 1936, passed by Congress on 29 June 1936 and replaced the U.S. Shipping Board which had existed since World War I. It was intended to formulate a merchant shipbuilding program to design and build five hundred modern merchant cargo ships to supplement and replace the World War I vintage vessels, including Hog Islander ships, that comprised the bulk of the U.S. Merchant Marine.

From 1939 through the end of World War II, MARCOM funded and administered the largest and most successful merchant shipbuilding effort in world history, producing thousands of ships, including Liberty ships, Victory ships, and others, notably type C1 ships, type C2 ships, type C3 ships, type C4 ships, T2 tankers, Landing Ship Tank (LST)s and patrol frigates. By the end of the war, U.S. shipyards working under MARCOM contracts had built a total of 5,777 oceangoing merchant and naval ships.

What was later known as the C1-A was among the three original cargo ship designs including the basic C2 and C3. The further developments included the C1-B which included minor changes and turbine engines, and then more radical departures for special needs to meet the exigencies of the war, including troop ships based on the C1-B. Deliveries of the C1-B began before the other models, in mid 1941.

The C series of ships differed from the Liberty and Victory ships. The first C series vessels were designed prior to hostilities and were meant to be commercially viable ships to modernize the US Merchant Marine, and reduce the US reliance on foreign shipping. The Liberty ships were a throwback to late 19th century British designs with reciprocating steam engines, but were very cheap to build in large quantities; Victory ships evolved from the Liberty ships but used modern turbine engines. The C series ships were more expensive to produce, but their economic viability lasted well into the late 1960s and early 1970s in military and merchant fleets. Several ships are still in operation.^[2]

The Type C1-A and C1-B ships were similar in design, All had a rated top speed of 14 knots (26 km/h; 16 mph). The primary difference between them was that C1-A ships were shelter deck ships, while C1-B ships were full scantling ships. There were many adaptations of the design for special purposes from hospital ships to petroleum gas carriers. The C1-M was the type with the largest production; it was a significant variation from the original C1 design in size, performance and profile; these were shorter, narrower, slower and the superstructure was farther toward the stern.

With the exception of ships built for specific shipping lines before the war, the majority of the C1-A and C1-B ships were given two-word names beginning with "Cape", such as Script error: The function "ship_prefix_templates" does not exist..

Forty-six Type C1-A ships were built at Pennsylvania Shipyards, Inc. in Beaumont, Texas, with another 19 being built by Pusey and Jones in Wilmington, Delaware (not to be confused with Consolidated Steel's Wilmington, California location). The majority were built with diesel motors, though 19 were built with steam turbine engines. These were shelter deck ships, having a very light upper deck, the sides of which are open ports to the second or main deck.

The first keels were laid in 1939. Two of the Pusey and Jones ships were converted to PT boat tenders before entering service, including missing name.

Some of the diesel vessels were powered by 2, 6-cylinder Nordberg 2-stroke engines (Sulzer type) driving the single shaft via magnetic couplings and a reduction gear-box. They were manufactured by Nordberg Manufacturing Company. The engine speed was 220 rpm and the shaft 110 rpm. This configuration made maneuvering very easy when entering port, as one engine was run in reverse and the other ahead; change of direction was simply performed by energizing the appropriate magnetic coupling. All auxiliary equipment was electric. The engine room was a pleasure to operate and the workmanship outstanding.

• Pennsylvania Shipyards, Inc., TX: 46 (launched May 1941 — Dec 1944)
• Pusey and Jones, DE: 19 (Jan 1942 — May 1945)

Converted to Troop Ships^[3][4]

• Script error: The function "ship_prefix_templates" does not exist. at Bethlehem 56th Street
• Script error: The function "ship_prefix_templates" does not exist. at Cardinal Engineering Company
• Script error: The function "ship_prefix_templates" does not exist. at Eureka Shipbuilding Company
• Script error: The function "ship_prefix_templates" does not exist. at McNulty Shipyards
• Script error: The function "ship_prefix_templates" does not exist. at Arthur Tickle

4 Modified and redesignated (to United States Navy)

• Cargo
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  • Script error: The function "ship_prefix_templates" does not exist. as missing name^[5]
• Motor Torpedo Boat Tender
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The Type C1-B ships were built in seven different yards, the majority at Consolidated Steel Corporation in Wilmington, California. All but ten of the C1-B ships had steam turbine engines; these were all built at Seattle-Tacoma SB Corp., Tacoma, Washington and Western Pipe & Steel, San Francisco, California, with each producing five ships. These were full scantling ships with three decks in which the frames hold the same dimensions as the upper deck. Full scantling ships have deck gear sufficient to completely unload their cargoes. An C1-B example is missing name.

In 1939, contracts for batches of 4 or 5 vessels were awarded to the lowest bidder. Bethlehem San Francisco and Bethlehem Staten Island only produced on this occasion for the Maritime Commission. For Seattle-Tacoma, the C1-B contract prompted the reopening of the Tacoma yard.

• Federal Shipbuilding, NJ: 5
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• Consolidated Steel, Long Beach, CA: 4
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• Bethlehem Sparrows Point, MD: 5
  • Script error: The function "ship_prefix_templates" does not exist. (MC-79) ... Script error: The function "ship_prefix_templates" does not exist. (MC-83)
• Bethlehem San Francisco, CA: 5
  • Script error: The function "ship_prefix_templates" does not exist. (MC-84) ... Script error: The function "ship_prefix_templates" does not exist. (MC-88)
• Bethlehem Staten Island, NY: 5
  • Script error: The function "ship_prefix_templates" does not exist. (MC-89) ... Script error: The function "ship_prefix_templates" does not exist. (MC-93)
• Western Pipe & Steel, San Francisco, CA: 5 (diesel)
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• Seattle-Tacoma Shipbuilding, WA: 5 (diesel)
  • Script error: The function "ship_prefix_templates" does not exist. (MC-119) ... Script error: The function "ship_prefix_templates" does not exist. (MC-123)

after the Emergency Shipbuilding Program picked up momentum, Consolidated Steel remained the only manufacturer of the C1-B type.

• Consolidated Steel, Long Beach, CA: 3
• Consolidated Steel, Wilmington, CA: 58

Converted to Troop Ships^[6][7][8]

• Script error: The function "ship_prefix_templates" does not exist. at Bethlehem 27th Street
• Script error: The function "ship_prefix_templates" does not exist. at Bethlehem Hoboken
• Script error: The function "ship_prefix_templates" does not exist. at Bethlehem Hoboken
• Script error: The function "ship_prefix_templates" does not exist. at Todd Hoboken
• Script error: The function "ship_prefix_templates" does not exist. at Zalud Marine Corporation
• Script error: The function "ship_prefix_templates" does not exist. at Zalud Maribe Corporation
• Script error: The function "ship_prefix_templates" does not exist. at Arthur Blair
• Script error: The function "ship_prefix_templates" does not exist. at Arthur Blair
• Script error: The function "ship_prefix_templates" does not exist. at General Engineering Company
• Script error: The function "ship_prefix_templates" does not exist. at Matson Navigation
• Script error: The function "ship_prefix_templates" does not exist. at Moore Dry Dock Company
• Script error: The function "ship_prefix_templates" does not exist. at United Engineering Co.
• Script error: The function "ship_prefix_templates" does not exist. at Todd Seattle
• Script error: The function "ship_prefix_templates" does not exist. at Bethlehem 27th Street

7 Modified and redesignated (to United States Navy)

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• Troop transports
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  • Script error: The function "ship_prefix_templates" does not exist. as missing name
• Cargo ships
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• Hospital ships
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  • Script error: The function "ship_prefix_templates" does not exist. as missing name
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The C1-S-AY1 subtype of thirteen ships built by Consolidated Steel Corporation was modified from the C1-B design for use as troopships by Great Britain under lend-lease called Landing Ship Infantry, Large. These ships were all given two-word names beginning with "Empire", such as SS Empire Spearhead. Script error: The function "ship_prefix_templates" does not exist. was lost at the Normandy Invasion, to a mine. Script error: The function "ship_prefix_templates" does not exist. was sunk by a torpedo from a German U-boat on 28 December 1944.

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The diesel (M for Motor) powered C1-M Type ships were a separate design from the C1-A and C1-B, meant for shorter runs and shallow harbors, either along the coasts, or for "island hopping" in the Pacific. These ships were shorter, narrower, and had less draft than the earlier C1 designs, and were rated at only 11 knots (20 km/h). missing name is an example of a C1-M ship.

The C1-M-AV1 subtype, a general cargo ship with one large diesel engine, was the most numerous. About 215 of this type were built in ten different shipyards. Consolidated Steel Corp., Ltd. of Wilmington, California built the largest number – about a quarter of all built. These ships were either named for knots, such as Script error: The function "ship_prefix_templates" does not exist., or with a two-word name beginning with "Coastal", such as Script error: The function "ship_prefix_templates" does not exist.; a large number built for lend-lease were also given two-word names, this time beginning with "Hickory". About 65 of this subtype were complete for the U.S. Navy, like the USS Gadsden built by Walter Butler Shipyard. Those ships were generally named after counties in the U.S. C1-M-AV1 ships are a Alamosa-class cargo ships.

One C1-ME-AV6 (also called C1-M-AV7^[9]) subype was built, Script error: The function "ship_prefix_templates" does not exist.. Instead of the diesel engine direct drive of the AV1 subtypes, it used diesel-electric drive. The diesel engine powered a generator to produce electricity, and an electric motor with 2,200 horsepower (1,600 kW) actually powered the vessel.

Four of the C1-MT-BU1 subtype were built as lumber carriers, with twin screws. The lumber carriers were given U.S. State-and-tree names, such as Script error: The function "ship_prefix_templates" does not exist.. Built by Albina Engine & Machine Works, Portland, Oregon.

The final subtype, C1-M-AV8, had a variable-pitch propeller. Only one ship was planned as this type, but five previously launched C1-M-AV1 ships were converted to this type for France.

• Launched August 1944 — December 1945
• Consolidated Steel Corporation, CA: 55
• Kaiser Richmond Shipyards, CA: 24
• Pennsylvania Shipyards, Inc., TX: 25 (1 AV8)
• Walter Butler Shipbuilders Inc., WI: 22
• Walter Butler Shipbuilders Inc., MN: 18
• Southeastern Shipbuilding Corporation, GA: 18 (5 AV8)
• Leathem D. Smith Shipbuilding Company, WI: 17 (1 AV6)
• Froemming Brothers, WI: 14
• J.A. Jones Construction, GA: 14
• Globe Shipbuilding Company, WI: 11
• Albina Engine & Machine Works, OR: 4 (4 C1-MT-BU1)

Modified and redesignated

• Cargo - AK (63)
  • 63 Script error: The function "sclass" does not exist.s
    • MC-2101 ... MC-2112 to missing name ... missing name
    • MC-2141 ... MC-2148 to missing name ... missing name
    • MC-2374 ... MC-2377 to missing name ... missing name
    • MC-2113 ... MC-2127 to missing name ... missing name
    • MC-2151 ... MC-2169 to missing name ... missing name
    • MC-2477 to missing name
    • MC-2323 to missing name
    • MC-2486 to missing name
    • MC-2172 to missing name
    • MC-2464 to missing name
    • MC-2329 to missing name
• Aviation stores issue ships - AVS (3AK)
  • 3 Script error: The function "sclass" does not exist.
    • AK-185 -> missing name
    • AK-199 -> missing name
    • AK-206 -> missing name
• Stores ships - AF (1)
  • missing name
• Miscellaneous Auxiliary ships - AG (1 + 2APC)
  • T-APC-119 -> missing name
  • T-APC-118 -> missing name
  • missing name ^[10]
• Missile Range Instrumentation Ship - AGM (4 + 1AK + 1???)
  • missing name
  • missing name
  • AK-212 -> missing name
  • missing name
  • missing name (alamosa?)
  • missing name
• Survey ship - AGS (1APC)
  • T-APC-117 -> missing name
• Coastal Transport- APC (4)
  • missing name
  • missing name -> T-AGS-35
  • missing name -> T-AG-171
  • missing name -> T-AG-169

Many of these ships have been sold and scrapped but numerous examples are still in service with Non Governmental Organizations (NGO)s such as "Friend Ships". That organization used the ex " missing name" built in Superior Wisconsin and renamed the "Spirit of Grace" until she was removed in 2006 and scrapped in 2008. Several are sailing in merchant service around the world making port calls and delivering cargo.

Note any ship in the control of the British Ministry of War Transport took an Empire name even if being built as another name e.g. Cape Turner

• Liscomb Lykes a C1-B, was wrecked and lost in New Caledonia in 1943.
• Diamond Knot a C1-M-AV1, collided with the Fenn Victory in the Strait of Juan de Fuca and sunk in 1947.
• Idaho a C1-B, was wrecked and scrapped in 1962.
• Cape Constance a C1-B, was hit by kamikaze plane in the Philippines on 4 November 1944 and was repaired. Later she was wrecked and abandoned in 1947.
• Cape Kumukaki a C1-B, renamed Flying Enterprise was wrecked in the English Channel in a storm and sank on 10 January 1952.
• Cape Frio a C1-A, was wrecked and scrapped in 1964.
• Cape Avinoff a C1-A, renamed Tropicana was wrecked and scrapped in 1966.
• Gwinnett a C1-M-AV1, (USN AK 185) was wrecked and scrapped in 1968.
• missing name a C1-M-AV1, was wrecked and abandoned in 1970.
• Rockdale a C1-M-AV1, (USN AK 208) was wrecked and scrapped in 1969.^[11]
• Traverse a C1-M-AV1, was wrecked and scrapped in 1962.
• Elmer J. Burr a C1-M-AV1, renamed Crown Reefer was wrecked and scrapped in 1946.
• Kenneth E. Gruennert a C1-M-AV1, renamed missing name was wrecked in grounding near Livorno on 15 December 1952 and then scrapped.
• Star Knot a C1-M-AV1, was wrecked and scrapped in 1967.
• Crown Knot a C1-M-AV1, was wrecked and sank in 1974.
• Carrick Bend a C1-M-AV1, was wrecked and scrapped in 1969.
• Mariner's Splice a C1-M-AV1, was wrecked and abandoned in 1971.
• Fisherman's Bend a C1-M-AV1, was wrecked and abandoned in 1965.
• Bight Knot a C1-M-AV1, was wrecked and scrapped in 1970.
• Oregon Fir a C1-MT-BU1 wrecked and scrapped in 1967.
• Hickory Glen a C1-M-AV1, was wrecked and abandoned in 1970.
• Hickory Beck a C1-M-AV1, was renamed Coastal Cadet, was wrecked and scrapped in 1969.
• Coastal Courser a C1-M-AV1, was wrecked and scrapped in 1970.
• Sheepshank a C1-M-AV1, was wrecked and sank in 1961.
• Rolling Hitch a C1-M-AV1, renamed MS Hoegh Aronde sank in 1963. She started leaking off the coast of Morocco at 31.30N 10.45W, steaming from Sassandra to Valencia with a cargo of 3,000 tons of phosphates and 2,000 tons of logs. She sent out a SOS with a message "sinking fast", but of the Norwegian crew of 32, 14 survivors were found in the sea.
• Yard Hitch, a C1-M-AV1, built by Froemming Bros. Inc., Milwaukee, Wisconsin which sank in 1967.
• Boatswain's Hitch a C1-M-AV1, sank in 1971.
• Masthead Knot a C1-M-AV1, caught fire and sank in 1969.
• Long Eye a C1-M-AV1, renamed Almagro, sank 1976.
• Reeving Eye a C1-M-AV1, sank in 1971.
• Hickory Tor C1-M-AV1, renamed Coastal Skipper, sank 1971.^[12]

• MV Cape Texas, Type C1-A ^[13][14]
• SS Cape Kumukaki/Flying Enterprise
• missing name
• missing name

• Type C2 ship
• Type C3 ship
• Type C4 ship
• T2 tanker
• Liberty ship
• Victory ship
• Hog Islander
• U.S. Merchant Marine Academy

• "United States Maritime Commission C1 and C1-M Type Ships used in World War II, Korean War and Vietnam War". 29 September 2000. http://www.usmm.org/c1ships.html. 
• Colton, Tim (28 August 2009). "C1 Cargo Ships". http://shipbuildinghistory.com/merchantships/2c1cargoships.htm. 
• "Outboard Profiles of Maritime Commission Vessels – The C1 Cargo Ship, Conversions and Subdesigns". 2007. http://drawings.usmaritimecommission.de/drawings_c1.htm. 
• Gerhardt, Frank A.. "U.S. Maritime Commission 1936 to 1950". http://www.usmaritimecommission.de/. 
• "Technical Specifications for Ships buil[t under the Merchant Marine Act of 1936"]. http://techspec.us-maritime-commission.de/technical_specifications_Introduction.htm.  including definitions of terms
• Sawyer, L.A.; Mitchell, W.H. (1981). From America to United States: The History of the long-range Merchant Shipbuilding Programme of the United States Maritime Commission. London: World Ship Society. ISBN 978-0-905617-08-4. 
• Lane, Frederic C. (2001). Ships for Victory: A History of Shipbuilding under the U.S. Maritime Commission in World War II. Baltimore: Johns Hopkins University Press. ISBN 978-0-8018-6752-1. 

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