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.
- Send us an email »
Vessel Design Portfolio
Crowley Takes Delivery of Fourth LNG-Ready, Product Tanker
Ninety Six Crowley Vessels Honored with Jones F. Devlin Awards in Recognition of 639 Combined Years of Safe Operations
Crowley Tows Ex-USS Taylor from Philadelphia to Charleston
Crowley Takes Delivery of Louisiana, Third Jones Act Tanker with LNG Capability
Crowley Awards Scholarships to Three USMMA Cadets at the 2015 Connie Awards Dinner