Built in 2016, by the Chesapeake Shipbuilding Corporation of Salisbury, Maryland (hull #122) as the Fort McHenry for the Vane Brothers Company of Baltimore, Maryland.
Designed by Frank Basile of Entech and Associates of Houma, Louisiana. She was the twelfth Sassafras class tug constructed for the Vane Brothers Company.
Named for Fort McHenry, that is located in Baltimore Harbor in Baltimore, Maryland. The fort is best known for its role in the War of 1812. When it successfully defended Baltimore Harbor from an attack by the British Navy in Chesapeake Bay from September 13th to 14th, 1813.
The fort was constructed in 1798, and was utilized continuously by the United States Armed Forces through World War I, and by the United States Coast Guard in World War II. In 1925, the fort was designated a national park.
Powered by two, Tier III complaint, Caterpillar 3512 diesel engines. With Twin Disc MG 6500 reduction gears, at a ratio of 6.04:1. Turning two, Rolls Royce, Troost, 87(in), four bladed, fixed pitch, propellers. She is a twin screw tug, rated at 3,000 horsepower.
Her electrical service is provided by two, Tier III complaint, 99kW, John Deere generator sets. The tug's capacities are 65,575 gallons of fuel, 2,068 gallons of lube oil, and 2,890 gallons of water.
The towing gear consists of a single drum, JonRie InterTech towing winch. Driven by a single, John Deere 4045 diesel engine. With an electric, JonRie InterTech, deck capstan mounted on her stern.