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Tuesday, January 21, 2020 

Ningbo Zhoushan Port of China has recently taken delivery of 'Yong Gang Xiao Tuo 60', a dual fuel RAstar 3800-DF tug from Jiangsu Zhenjiang Shipyard, which is the first dual fuel version of the Robert Allan Ltd (RAL) RAstar 3800 design.

This is the tenth custom designed vessel by RAL in close collaboration with Ningbo Port Company, and RAL's first dual-fuel tug to operate in China. The 38m x 13.5m tug is powered by a pair of Niigata 8L28AHX-DF engines, each rated 2,389 kW at 800 rpm, and driving Kongsberg US 255 CP 2.8m dia controllable pitch Z-drives. Bollard pull recorded on trials met expectations and is certified as 80.3 tonnes ahead. Recorded speed ahead is 13.5 knots.

The LNG tank and fuel gas system have been supplied by Gloryholder Liquefied Machinery of China. Gross capacity of the tank is 55m³, which is suitable for a range of over 700 nautical miles in gas mode and can be supplemented by additional range of nearly 1,700 nautical miles in diesel mode.

The double drum hydraulic hawser winch forward, capstans for both forward and aft decks and anchor windlasses are supplied by Singapore’s W-Rig, while the tow hook aft is supplied by Mampaey. A Fi-Fi 1 class off-ship fire-fighting system with pumps driven off the front of each main engine uses equipment supplied by Norway’s Jason Engineering.

MLC 2006 compliant accommodations are provided for a crew of up to 10 persons in the two-level deckhouse, including six single occupancy officer cabins on the second deck, plus two double crew cabins in the first tier of the deckhouse. The tug has been designed and built to China Classification Society (CCS) rules to notation: ★CSA Tug, Dual Fuel, Coastal Service, Fire Fighting Ship 1, ★CSM, ★BRC.

RAL claims a leading position in the design of gas-fuelled tugs, with five now delivered to custom designs for three different owners in Europe and Asia, and another design already under contract for three dual fuel tugs for a North American operator.

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