W&D delivers tug

Washburn & Doughty Associates (W&D) of East Boothbay, Maine, delivered Bulldog, a 30.15 metre, 11.4 m wide, 6,700 hp, Z Drive firefighting tug, to Crescent Towing of New Orleans. The Z-drive Bulldog provides ship-assist and escort services for LNG tankers at the Elba Island LNG re-gasification terminal in Savannah and is a new W&D in-house design and the first tug built at the yard for Crescent Towing.

With the new design, W&D maintained a traditional look while providing 360-degree visibility in the pilothouse. Underwater, the vessel features a deep box skeg designed to enhance escorting without sacrificing manoeuvrability. The newbuilding is powered by two medium speed GE 7FDM12 main engines that each produces 3,350 hp @ 1,050 rpm. The propulsion system is completed by two Rolls-Royce US255 Z Drives with 2800mm, 4 blade, stainless steel propellers. A maximum bollard pull of 91 tonnes was attained at trials in January.

Firefighting 1 equipment includes two Caterpillar 3412C engines rated at 900 hp @ 2,100 rpm and Nijhuis HGTFI-1-250.500 pumps located in the engine room. The pumps supply two remote controlled FiFi 1 monitors mounted on the aft upper deck. Controls for the monitors are in the pilothouse and locally at the monitors. The firefighting system also includes a deluge sprinkler system and eight fire stations located on the main deck.