Coastal trading vessels, also known as coasters or skoots, are shallow-hulled merchant ships used for transporting cargo along a coastline. Their shallow hulls mean that they can get through reefs where deeper-hulled seagoing ships usually cannot, but as a result they are not optimized for the large waves found on the open ocean. Coasters can load and unload cargo in shallow ports. For European inland waterways, they are limited to a 33,49 m beam.
Type C2 ships were designed by the United States Maritime Commission (MARCOM) in 1937–38. They were all-purpose cargo ships with five holds, and U.S. shipyards built 328 of them from 1939 to 1945. Compared to ships built before 1939, the C2s were remarkable for their speed and fuel economy. Their design speed was 15.5 knots (28.7 km/h), but some could make 19 knots (35 km/h) on occasion. The first C2s were 459 feet (140 m) long, 63 feet (19 m) broad, and 40 feet (12 m) deep, with a 25-foot (8 m) draft. Later ships varied somewhat in size. Some, intended for specific trade routes, were built with significant modifications in length and capacity.
Europa (AK-81) was never commissioned and thus never bore the USS designation.
Nashira (AK-85) was planned as a civilian cargo ship for the United States Maritime Commission, transferred to the Navy for construction then transferred to the U.S. Army and renamed two days after launching. The ship was never commissioned, thus never bore the USS designation, and had no significant naval service. The ship was converted to the U.S. Army Engineer Port Repair ship Richard R. Arnold and served in the Pacific during 1945.
USS Enceladus (AK-80) was an Enceladus-class cargo ship commissioned by the U.S. Navy for service in World War II. She was responsible for delivering goods and equipment to locations in the war zone.
USS Hydra (AK-82), ex MV Eben H. Linnell, was an Enceladus-class cargo ship commissioned by the U.S. Navy for cargo service in World War II. Hydra was in naval service from 1 January through 19 November 1943 before she was transferred to the U.S. Army for conversion to the Engineer Port Repair ship Madison Jordan Manchester.
Media (AK-83) was a World War II US navy ship that was never commissioned and thus never bore the USS designation.
Mira (AK-84) was never commissioned and thus never bore the USS designation. The ship was transferred to become the U.S. Army Corps of Engineers Port Repair ship Robert M. Emery the day after acquisition by Navy.
Norma (AK-86) was never commissioned and thus never bore the USS designation. Norma is the name of constellation.
Sagitta (AK-87) was never commissioned and thus never bore the USS designation.
Tucana (AK-88) was never commissioned and thus never bore the USS designation. She was transferred upon launching on 13 September 1944 to the U.S. Army as the U.S. Army Engineer Port Repair ship Arthur C. Ely.
Vela (AK-89) was never commissioned and thus never bore the USS designation. The ship was transferred to the Army to become the Engineer Port Repair Ship Joe C. Specker shortly after launching. She was one of two such repair ships transferred to Navy in 1952 and served as the civilian crewed, unarmed USNS Vela (T-AK-89).
The Type C4-class ship were the largest cargo ships built by the United States Maritime Commission (MARCOM) during World War II. The design was originally developed for the American-Hawaiian Lines in 1941, but in late 1941 the plans were taken over by the MARCOM.
A CHANT was a type of prefabricated coastal tanker that was built in the United Kingdom during the Second World War due to a perceived need for coastal tankers after the invasion of France. Some CHANTs were adapted to carry dry cargos. These were known as the Empire F type coasters.
The U.S. Army acquired ten ships during World War II as Engineer Port Repair Ships, also sometimes known as Port Rehabilitation ships, for use by the U.S. Army Corps of Engineers to clear war damaged harbors. The need was anticipated by 1942 for the post invasion recovery of ports in Europe and the Transportation Corps was assigned the responsibility to acquire and modify the ships that would be military crewed under the Corps of Engineers.
The T1 tanker or T1 are a class of sea worthy small tanker ships used to transport fuel oil before and during World War II, Korean War and Vietnam War. The T1 tanker classification is still in use today. T1 tankers are about 200 to 250 feet in length and are able to sustain a top speed of about 12 knots. The hull designation AO is used by the US Navy to denote the ship is a T1 oil tanker and AOG that the T1 is a gasoline tanker. The small size allows the T1 to enter just about any sea port or to anchor around a small island, this was very useful during the Pacific War. The T1 tanker can carry about 48,000 to 280,000 bbls. Some T1 tankers were used to transport goods other than oil, a few were used for black oil-crude oil, diesel, chemicals and rarely bulk cargo like grain. T1 tankers are also called liquid cargo carriers. The T1 tanker has about a 6,000 to 35,000 deadweight tonnage (DWT) of cargo. The small size also gives the ships short turn around time for repair, cleaning, loading and unloading. A T1 tanker carrying dirty cargo, like crude oil needs a few weeks of labor to clean before carrying clean cargo. Most T1 ships during World War II were named after major oil fields.
The Type B ship is a United States Maritime Administration (MARAD) designation for World War II barges. Barges are very low cost to build, operate and move. Barges were needed to move large bulky cargo. A tug boat, some classed as Type V ships, could move a barge, then depart and move on to the next task. That meant the barge did not have to be rushed to be unloaded or loaded. Toward the end of World War 2, some ships that had not been completed in time for the war were converted to barges. US Navy barges are given the prefix: YWN or YW. Due to shortage of steel during World War II, concrete ship constructors were given contracts to build concrete barges, with ferrocement and given the prefix YO, YOG, YOGN. Built in 1944 and 1945, some were named after chemical elements.
The McDougall Duluth Shipbuilding Company was a large-scale wartime ship manufacturing shipyard, located at the city of Riverside, near Duluth. McDougall Duluth Shipbuilding was at 110 Spring Street, Duluth, Minnesota, now the site of the West Duluth's Spirit Lake Marina. The shipyard was located on St. Louis River Estuary at western part of Lake Superior. McDougall Duluth Shipbuilding Company was founded by Alexander McDougall (1845-1923) in 1917 to build ships for World War I. McDougall Duluth Shipbuilding Company and the Superior Shipbuilding Company were called the Twin Ports shipbuilding industry of Minnesota and Wisconsin. Once built the ships can travel to the Atlantic Ocean through the Great Lakes and the Saint Lawrence Seaway.
Bethlehem Beaumont Shipyard was a shipyard in Beaumont, Texas that opened in 1948. The yard is located on an island in the Neches River and upstream of the Sabine Pass that grants access to the Gulf of Mexico. The deep-water port shipyard was founded in 1917 as the Beaumont Shipbuilding & Dry Dock Company. Beaumont Shipbuilding & Dry Dock Company started as a World War I Emergency Shipbuilding Program yard.
Pendleton Shipyard Company was a shipyard in New Orleans, Louisiana started by Pendleton E. Leyde in 1941. Pendleton Shipyard Company built ships for World War II under the Emergency Shipbuilding Program. The shipyard was at the Florida Avenue Wharf at 29.979537°N 90.025385°W. Pendleton Shipyard Company sold the yard to John Wise Calmes, who opened Calmes Engineering at the site. The yard also inspected and delivered small ships built in Mississippi River shipyards to the United States Navy. The Calmes Engineering shipyard closed in April 1958 shortly after the death of Calmes.
