Russia’s Pella Shipyard is currently building a 25-metre ASD tug for the Grifon Company, which will operate the vessel in the port of Saint Petersburg.
The model 90600 tug measures 25.4 metres long with a beam of 8.8 metres, and includes design features such as fifi capabilities, centralised controls in the wheelhouse, and operational reliability in severe ice conditions.
While the bow is designed for ice breaking, the tug’s below water hull is designed to protect its Z-drives from ice damage. The double chine hull and slightly extended keel for and aft provide directional stability.
It will receive propulsion from a pair of Cummins K50-M diesels each delivering 1,193kW at 1,800rpm. The engines drive Rolls Royce Z-drives giving the tug a free running speed of 12 knots and a bollard pull between 23 and 35 tonnes depending on owner’s specifications.
Two Cummins 6B-CP80DMS-powered gen sets each provide 80kW of electrical power for ship’s use, including the electro-hydraulic anchor winch and deck crane. Accommodation is provided for eight crewmembers while tankage includes 70m3 fuel oil, 1.6m3 lube oil, 12m3 fresh water and 18m3 ballast.