the.com/tugboat
the smallest boat in the harbor, bossing around ships a thousand times its size
power ratioTiny hulls pack 3,000-plus horsepower engines
pulling trickBollard pull measures muscle while standing still
360 spinAzimuth thrusters rotate fully for instant maneuvering
rescue roleThey tow stranded ships and fight harbor fires
old guardSteam tugs date back to the 1800s