Bay-class icebreaking tug
Country of origin
United States
United States
ManufacturerTacoma Boatbuilding Company
The Bay-class tugboat is a class of 140-foot (43 m) icebreaking tugboats of the United States Coast Guard, with hull numbers WTGB-101 through to WTGB-109.
They can proceed through freshwater ice up to 20 inches (51 cm) thick, and break ice up to 3 feet (0.91 m) thick, through ramming. They can also ram pressure ridges of up to 8 feet in thickness. These vessels are equipped with a system to lubricate their progress through the ice, by bubbling air through the hull.
They can proceed through freshwater ice up to 20 inches (51 cm) thick, and break ice up to 3 feet (0.91 m) thick, through ramming. They can also ram pressure ridges of up to 8 feet in thickness. These vessels are equipped with a system to lubricate their progress through the ice, by bubbling air through the hull.
