The ATB design is not a compromise between pushing and towing, but is touted as the most ... to provide smooth flow from the barge to the tug hull. Tankage is designed to trim the tug properly ...

While the measuring stick for tugboat fuel economy is quite a bit ... Officials say improvements to the engine combined with better hull design help achieve the improved fuel economy.

Tug boats are maritime tow trucks, and they can "tug" and dock ... For one, seawater ingress happens often due to openings in the hull from sea chests, fittings, and shaft seals, according to ...