A Tidewater subsidiary is adding two articulated tug-barge (ATB) units to its western Canada fleet to support higher trade levels in the area.
Island Tug and Barge (ITB) has christened its latest ATB tug Island Raider at a ceremony at its headquarters in Burnaby, British Columbia. ITB will take delivery of a sister ATB tug Island Regent in February 2019.
Island Raider will be paired with ITB’s double-hulled oil tank barge ITB Resolution as an ATB unit. This tug was built to a Robert Allan design at ITB’s Annacis Island facility along the Fraser River in British Columbia.
It is powered by two Cummins KTA38M engines that produce 634 kW each at speeds of 1,800 rpm. Island Raider has carbon-fibre shafts that connect the engines to two Rolls-Royce Z-drives. These are US105 FP azimuthing thrusters with a four-blade in-nozzle propeller of 160 cm diameter.
Island Raider will be connected to the barge through an Articouple FRC 35S pin coupler with hydraulic pins that allow the tug to pitch but not roll. The joined ATB will have a fully loaded speed of 10 knots.
Inside the engineroom there are two John Deere 4045 AFM85 generators, producing 99 kW of electrical power each. The wheelhouse includes navigation equipment supplied by JRC Alphatron, including radar, electronic chart display, weather station, bridge navigation watch alarm system, magnetic compass and automatic identification system. Cobham Satcom supplied the Sailor VHF radio.
Island Raider and Island Regent ATB tugs were shipped from down the Fraser River on a barge operated by Dynamic Heavy Lift and in partnership with Mammoet. They were unloaded in Vancouver’s Burrard Inlet in June this year.