Built in 2019 by Washburn and Doughty Associates of East Boothbay, Maine (hull #129) as the Eileen McAllister for the McAllister Towing and Transportation Company of New York, New York.
Powered by two, sixteen cylinder, Tier IV complaint, Caterpillar 3516E diesel engines. With Schottel SRP 490 z-drives for a rated 6,770 horsepower.
Her electrical service is provided by two, 99kW, Marathon 363PSL1607-1E generator sets. Driven by two, Tier IV compliant, John Deere 4045AFM85Ed diesel engines. The tug's capacities are 40,402 gallons of fuel, 1,151 gallons of lube oil, 433 gallons of hydraulic oil, and 14,056 gallons of ballast water.
The towing equipment consists of a Markey winch mounted on her bow, and one Markey winch on her stern.