Built in 1991 by Tri-Star Marine Incorporated at Seattle, Washington (hull #D0103) as the Gale Wind for the Cook Inlet Tug and Barge Company of Seward, Alaska.
In 2008, the tug was acquired by Alaska Marine Lines Incorporated of Seattle, Washington, a subsidiary of Lynden Incorporated of Seattle, Washington. Where she was renamed as the Polar Wind.
Powered by two Caterpillar Model 3512 diesel engines. With Reintjes 760 reduction gears, at a ratio of 5.75:1. Turning two fixed pitch, 91(in) by 51.95(in) propellers. For a rated 1,900 horsepower.
Her electrical service is provided by a single, 6okW, John Deere generator set. The tug's capacities are 35,000 gallons of fuel, and 1,194 gallons of lube oil.
The towing equipment consists of an INTERcon towing winch. Outfitted with 2,200(ft) of 1.75(in) towing wire.