McAllister orders two Tier 4 z-drives from Washburn & Doughty


(NEW YORK) — McAllister Towing has signed a contract for the construction of two 93-by-38-foot, Tier 4, 84-metric-ton bollard pull tractor tugs with the option for two more. These tugs will further enhance McAllister’s East Coast fleet with the ability to service its customers’ largest ships and bring McAllister’s tractor fleet to 39 tugs with a total of over 182,000 horsepower.

The new 6,770-hp tugs will be powered by 3516E Tier 4 Caterpillar engines with twin Schottel SRP 490 z-drive units and Markey winches on the bow and stern. Sister vessel Eileen McAllister achieved over 84 metric tons during its ABS bollard pull certification and McAllister anticipates the same or better performance for the new vessels.

Eileen McAllister off East Boothbay, Maine, in early 2020. McAllister Towing photo

Hulls 135 and 136 are being built at Washburn & Doughty Associates (W&D) in East Boothbay, Maine, with the first boat slated for delivery in November 2022. These will be the third and fourth tugs built at W&D for McAllister, and will bring the total number of tugs in McAllister’s fleet built at W&D up to seven.

“We look forward to once again working with the professionals at Washburn & Doughty,” said Martin Costa, McAllister’s engineering manager. “They are always accommodating and we really appreciate the ‘in-house’ aspect of their work. We anticipate another great building experience with this outstanding maritime family company.”

McAllister is a family-owned marine transportation company founded in 1864. McAllister operates a modern fleet of more than 60 tugs, barges, launches and ferries along the U.S. East Coast from Portland, Maine, to San Juan, Puerto Rico.

– McAllister Towing

By Professional Mariner Staff