North American owners have taken delivery of harbour tugs and a pilot launch to modernise fleets
North Arm Transportation has started operating its latest tug newbuilding, North Arm Tempest, which completed sea trials in Vancouver Harbour, Canada in April.
ABD Boats shipyard in North Vancouver, British Columbia built this 19.7-m tug with a beam of 8.2 m. It has two azimuth thrusters, Veth Propulsion-manufactured Z-drives, driven by a pair of Cummins KTA38-M main engines each producing 745 kW of power at 1,800 rpm.
North Arm Tempest has a split-drum, combination anchor and hawser winch supplied by Burrard Iron Works on the forward deck and a single drum, Burrard-supplied towing winch on the aft deck. Both winches will operate on hydraulics off the two auxiliary engines. Towing pins were supplied by Western Machine Works.
Baltimore, US-based Vane Brothers took delivery of Cape Henry, a 27.4-m Sassafras-class tug with 2,240 kW of power.
Chesapeake Shipbuilding built Cape Henry in its Maryland facilities to naval architecture by Entech Designs. Cape Henry is a 27.4-m Sassafras-class tug. It was built for towing petroleum barges engaged in the northeast and mid-Atlantic coastal trade.
It has twin Caterpillar 3512 main engines which drive fixed-pitch propellers through Twin Disc MG 6500, 6:1 reverse reduction gears, a JonRie Series 500 hydraulic towing winch with a line pull of 45 tonnes and capacity to spool 610 m of 4.5-cm diameter cable.
Also in the US northeast, the Association of Maryland Pilots took delivery of its fourth Chesapeake-class launch from Gladding-Hearn Shipbuilding. This launch was built with a deep V-shaped, aluminium hull. It has two Volvo Penta D16 main diesel engines, complying with US Environmental Protection Agency Tier 3 emissions requirements. These drive five-blade Bruntons propellers via ZF 500-1-A gear boxes.
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