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FIRST OF SIX NEW RAL-DESIGN TUGS FOR US NAVY LAUNCHED IN WASHINGTON

Friday, June 12, 2020 

The first of a series of six new tugs, to the Z-Tech 4500 design by Robert Allan Ltd (RAL) of Canada for the United States Navy (YT 808), has been successfully launched by Dakota Creek Industries of Anacortes, Washington.

The US Navy has been operating six Valiant (YT 802) class of tugs, the first of which was delivered in 2010 and all six have been in continuous operation ever since. The six new vessels (YT 808) have modifications based on feedback from their skippers, new Navy requirements, as well as incorporating EPA Tier 4 emissions certified main engines.

The tugs are 27.42m length overall, 11.65m breadth, and bollard pull is 40t.

They are powered by twin Caterpillar 3512E 1810 HP main engines driving Schottel SRP 340 fixed pitch Z-drive thrusters. The fendering system at the bow consists of two rows of cylindrical fender and a lower course of “W” fenders. An extensive amount of underwater fendering is used for operation with submarines, and new diagonal 'D' side fendering was added to help safely push low freeboard barges. The tugs are equipped with a 2,000 GPM fire pump and two monitors.

The class notation is: ABS ✠ A1 Towing Vessel, Unrestricted Navigational Service, ✠ AMS

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