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PORTLAND – A $7 million tugboat is the newest high-tech fixture along the Portland waterfront.
The 98-foot Andrew McAllister, which arrived this month after its christening in New York Harbor, is the anchor of the five-boat fleet operated by Portland Tugboats.
It’s a 6,000-horsepower tractor tug with two powerful propeller assemblies, known as Z-drives, that swivel 360 degrees to push or pull the boat in any direction.
The new tug’s biggest customer is the Portland Pipe Line Corp., which takes in crude oil shipments that flow by pipeline to Canada.
The Andrew McAllister also provides Portland with enhanced firefighting capacity. It’s equipped with massive water guns that can pump 11,600 gallons of seawater per minute in a huge plume halfway across the harbor.
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