http://www.marinelink.com/news/bisso-towboat-accepts-4-000-asd-tractor-tug331731
Bisso Towboat Accepts 4,000 ASD Tractor Tug
Bisso Towboat Co., Inc. announced the delivery of its new 4,000 HP ASD tractor tug Michael S. Constructed at Main Iron Works, Houma…