Buksér og Berging has upgraded its fleet with the first of two tractor tugboats from Sanmar Shipyards with propulsion complying with IMO Tier III emissions requirements
This is the first IMO Tier III tug Sanmar has built at its shipyard at Altinova in Turkey. A second is underway for the same Norwegian owner.
The first escort tug for Buksér og Berging, Bamse, was built to a TRAktor 3000-Z design from Canadian naval architects Robert Allan.
This 30.45-m tug has a moulded beam of 12.8 m, navigational draught of 6.35 m, bollard pull of 75 tonnes and can generating a steering force in excess of 80 tonnes.
It is powered by two 2,200-kW, high-speed engines driving controllable-pitch propellers in an IMO Tier III emissions-compliant installation. With a speed ahead of 13 knots, it has fuel oil capacity of 126 m3.
The tug design features a new hullform that was verified through computational fluid dynamics studies by Robert Allan. Analysis included verification of ahead speed, astern speed, bollard pull, escort performance, and directional stability to ensure these vessels would perform to the owner’s requirements. The result is an escort tug that matches the owner’s performance, stability and seakeeping expectations.
The stern of the hull is ice strengthened for operations in light ice conditions. As the tug will mostly operate skeg or stern first, visibility over the stern has been optimised.
Accommodation is designed for a crew of up to seven with master and chief engineer cabins located on the main deck, and a single and two double-crew cabins below.
Bamse is the sixth tug delivered to Buksér og Berging by Sanmar as it delivered five newbuild tugs in 2014 and 2015, including world’s first two LNG-fuelled tugboats.
Bamse has started carrying out ship escort duties from Brevik, in Norway.
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