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 . 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.
V4-M-A1 is a Type V ship, that is, a tugboat. The V4-M-A1 tugboats were the largest and most powerful tugs in the world when they were built. They were named after lighthouses. The V4-M-A1 tugboats had steel hulls and displaced 1,613 tons. They were 195 feet long, with a beam of 37.5-foot, a draft of 15.5 feet, and a maximum speed of 14 knots. There were two engine manufacturers: National Supply Company, with 8-cylinder sets of 3,200 bhp and the Enterprise Engine & Trading Company with 6 cylinders and 2,340 bhp power.
N3-S-A2 is a Type N3 ship, a small coastal cargo ship. N3-S-A2 ships are long, have a beam of , a tonnage of 2,905 dwt, a displacement of and a draft of . The ship has 1300 shaft horsepower with a top speed of .
These ships were built by the Pendleton Shipyard Company.
These ships were built by Calmes Engineering.