ZNT Yard on September 12, 2012 handed over to Rosmorport the ice-breaking tugboat Dobrynya of Project TG04M, the project designer Marine Engineering Bureau said. The tug was delivered four months ahead of schedule.
The boat was ordered for Rostov affiliate of Rosmorport. The icebreaking single-deck twin-screw tug is designed for river, harbor towing / escorting, docking operations or inshore transportation of 12 passengers (dock workers). The boat will be operated on inland waterways and estuaries with sea navigation mode "O" under the rules of Russian River Register. The designer provides for cold lay-up of the vessel for the six-month period.
ZNT Yard is experienced in building ice-class tugs. In 2009, the shipbuilder executed an order of MMC Norilsk Nickel for the TG04 project tug "Portovy-1", which has been operating at the port of Dudinka. In July 2012, after sea trials MMC Norilsk Nickel signed an acceptance certificate for Portovy-2 tug, which will also be homeported in Dudinka. The Dobrynya was laid down on December 8, 2011, launched on August 1, 2012, commissioned on September 12, 2012. The tug Murom was laid down on December 8, 2011 and launched on August 28, 2012.
The project TG04M tugboat was designed to RRR class - "O" 2,0 (Ice 30) A. The working design documentation was prepared by ZNT Engineering.
Ship’s characteristics: length - 20.96 m, beam - 6,6 m, depth amidships - 2.4 m, draft at DWL - 1.8 m, displacement at DWL draft, fresh water - 126.6 tons, DWT - about 27.8 tons. The tug is powered by two 221kW main engines. Endurance (fuel/water) - 4.4 / 9.4 days.
JSC Nizhny Novgorod Motor Vessel Yard (ZNT Yard), based in Russia's Nizhny Novgorod region, specializes in the construction of supply and auxiliary fleet, harbor equipment and marine engines.