Built in 2004, by the Manitowoc Marine Group of Sturgeon Bay, Wisconsin (hull #754) as the Capt. Hagen for Penn Maritime Incorporated of Stamford, Connecticut.
An ATLANTIC III class ATB designed by Robert Hill of Ocean Tug and Barge engineering of Milford, Massachusetts. She was the first ATLANTIC III constructed for Penn Maritime Incorporated.
She was named for Captain Hans F. Hagen. A long time Penn Maritime Incorporated employee, Captain Hagen passed way in 2010. The tug's hull design was conceived to make it easier to build than the larger ATLANTIC II class ATB's. With a 38(ft) beam, the hull was designed to handle as much as 8,000 horsepower.
Unlike the other of her class, she does not have a full main deck deck house. Instead she was constructed with a more traditional sheer boat deck with a full main deck house. The tug was also built with a spill proof fuel transfer system, and is fitted with larger rudders the the other units of her class.
Powered by two, twelve cylinder, EMD GM R12-710G7B diesel engines. With Reintjes WAF 3455 HL/HR reduction gears. Turning two, stainless steel, fixed pitch propellers. She is a twin screw tug, rated at 6,000 horsepower.
Her electrical service is provided by two 99kW, Marathon generator sets. With a third, auxiliary 99kW, Marathon generator set. The tug's capacities are 141,332 gallons of fuel, 4,068 gallons of lube oil, 19,971 gallons of water, and 27,738 gallons of ballast.
Outfitted with an INTERcon coupler system. The tug is "married" with the, 460(ft), by 78(ft), by 36(ft), 140,000(bbl), double hulled, barge, the Key West. That was built simultaneously by the Manitowoc Marine Group of Sturgeon Bay, Wisconsin (hull #755) for Penn Maritime Incorporated.
In 2012, Penn Maritime Incorporated was acquired by the Kirby Corporation of Channelview, Texas. Where the tug retained her name.