December 20, 2016
Robert Allan Ltd.’s new RAstar 3800-DF class dual-fuel (LNG-MDO) tug for Ningbo Port Company is currently in the shipyard tendering stage, representing a key milestone in the development of the latest addition to Robert Allan Ltd.’s growing family of LNG fuelled tugs.
The latest design builds on the extensive history of collaboration between the two companies on several successful series of tug designs, dating back to 2004, and includes multiple series of 32 to 39 metre long tugs (4800 – 7200 hp).
The new RAstar 3800-DF tug will be powered by a pair Niigata 8L28AHX-DF dual-fuel engines, each driving a Rolls-Royce US 255 CP Z-drive, and delivering a bollard pull of close to 80 tonnes. The tug also features a double-drum W-Rig hawser winch forward, and a 100 tonne SWL Mampaey tow hook aft.
The tug will have an LNG capacity of 55 m³ and the gas system has been specially designed with Niigata to deliver superior engine acceleration performance when running on gas. The vessel will be classed as a dual-fuel tug with China Classification Society (CCS), and fully equipped to a ‘Fire-Fighting Ship 1’ standard.
Comfortable accommodations are provided for up to 14 crew members, with all cabins located in a spacious deckhouse with ample natural light. The very large lounge / crew mess on the main deck also serves to maximize crew comfort aboard.
This latest addition to Robert Allan Ltd.’s portfolio of LNG fuelled tugs is specifically tailored to Ningbo Port Company’s exacting requirements. By working closely with the Owner throughout the design process, a solution has been developed that not only meets all of the Owner’s specific requirements for the tug, but also maximizes the benefits of running on LNG.