The 105-foot Harbor Class tractor tugs are U.S.-flag vessels designed for ship assist and escort. These tugs feature Voith Schneider twin cycloidal propulsion and a hydrofoil-shaped skeg that provides for greatly improved steering, control and seakeeping ability when the vessel is running at high speeds in the skeg-first direction. In addition, the unique hydrodynamics of the hull result in increased tons of steering and braking force, which are available to assist or control a vessel at higher speeds.
Crowley innovations incorporated into the design of these tugs include a pilothouse control console arranged for maximum visibility and ease of use.
All Crowley tugs are fully instrumented, with pilothouse-controlled engine rooms, and are equipped with the latest in navigational and communications technology.
Vessel Design Portfolio
Crowley Christens New Ocean Class, DP2 Tugboat, Ocean Sun, in Louisiana
Crowley Tug Participates in Blackout Test with Ultra-Deepwater, Semisubmersible Noble Jim Day Rig in U.S. Gulf of Mexico
Crowley Heavy Deck Strength Barge Helps Launch U.S. Navy’s Newest Littoral Combat Ship, USS Montgomery
Crowley Opens Full-Service Project Management and Logistics Solutions Office in Singapore
Crowley Christens New Ocean Class, Dynamic Positioning 2 (DP2) Tugboat in Houston – Ocean Sky