Under construction, to be completed in 2026, by Washburn and Doughty Associates of East Boothbay, Maine (hull #140) as the Mary McAllister for the McAllister Towing and Transportation Company of New York, New York.

The tug will be powered by two, sixteen cylinder, Tier IV complaint, Caterpillar 3516E diesel engines with Schottel SRP 490 z-drives. She will be a twin screw tractor tug, rated at 6,770 horsepower.

The tug will be outfitted with a full engine room monitoring system that includes remote monitoring capability at helm, as well as engine room and deck cameras with wheelhouse display.

Her electrical service will be provided by two, AFM85 Tier III compliant, 99kW, John Deere 4045 generator sets. The tug's capacities will be 30,000 gallons of fuel, 4000 gallons of potable water, and 500 gallons of AFF foam.

The towing equipment will consist of a 75 horsepower, single drum, Markey DEPCF-52, full render / recover, Class II escort winch. Outfitted with 800(ft) of 10(in) line mounted on her bow. As well as one Markey DEPC-42 Hawser Winch outfitted with 450(ft) of 2.25(in) Amstel Blue line mounted on her stern.

She will be outfitted with one, FFS fire monitor with 6,000 Gallon Per Minute foam injection capability. Driven by one, Caterpillar C18 fire pump rated at 6,000 Gallons Per Minute.