Built in 1980, by Main Iron Works of Houma, Louisiana (hull #358) as the Pacific Knight for the Swire Pacific Company of LaGrande, Oregon.
In 1980, the tug was acquired by the Foss Maritime Company of Seattle, Washington. Where the tug retained her name.
Powered by two, Caterpillar D-398 diesel engines. With Caterpillar 7261 reduction gears, at a ratio of 4.61:1. Turning two, four bladed, 76(in) by 76(in), Coolidge, fixed pitch propellers. She is a twin screw tug, rated at 2,210 horsepower.
Her electrical service is provided by two, 50kW generator sets. Driven by two, GM Detroit 4-71 diesel engines. The tug's capacities are 25,459 gallons of fuel, 453 gallons of lube oil, 384 gallons of lube oil, and 3,283 gallons of water.
The towing equipment consists of an INTERcon SD-150, single drum, towing winch. Outfitted with 2.000(ft) of 1.5(in) towing wire. And, a Foss bow winch, outfitted with 95(ft) of 7.5(in) of Polyester 12, braided line.