Built in 1981, by Patti Industries Incorporated of Pensacola, Florida (hull #108) as the Harvey Viking for Harvey Gulf Marine Incorporated of New Orleans, Louisiana.
In 2010, the tug was acquired by the Crosby Marine Transportation Company of Golden Meadow, Louisiana. Where she was renamed as the Crosby Sun.
In 2015, she was phased out of active service and was "laid up" at Houma, Louisiana.
Powered by two, GM 12V 149 diesel engines. Turning two, stainless steel, fixed pitch propellers, fitted in kort nozzles. She was a twin screw tug, rated at 3,000 horsepower.
Her electrical service was provided by two, 40kW, generator sets. Driven by two, GM 4-71 diesel engines. The tug's capacities were 33,350 gallons of fuel oil, and 4,416 gallons of potable water.
The tug's towing gear consisted of a single drum, Smatco Model 48K DADT 75 towing winch. Outfitted with 1,400(ft) of 1.50(in) towing cable.