A tugboat, or tug, is a motor ship used to manoeuvre, primarily by towing, other vessels in harbours, over the open sea or through rivers and canals. They are also used to tow barges, disabled ships, or other equipment. Formerly sometimes in categorising "towboat" was used, but Webster's new twentieth century dictionary describes "tug" with "to tow with a tugboat".
Tugboat in Port Gdynia
Tugboat operating on the Mississippi River
Tugboat pulling a barge in a strait in Helsinki
|General Types of Modern Merchant Ship|
|Dry Cargo Ships • Bulk carrier • Container ship • Reefer ship • RORO Ship • Tankers • Chemical tankers • Coastal trading vessel • Passenger ship • Cruise ship • Ferry • Cable layer • Tugboat • Dredger • Category:Barges •
Panamax • Capesize • Seawaymax • Handymax • Handysize • Aframax • Suezmax • Malaccamax • VLCC • ULCC