“We don’t do dual fuel,” says a spokesman as Rolls-Royce late last week reported a contract to deliver engines and azimuth propulsion systems for two liquefied natural gas-fueled tugboats, said to be the world’s first.
The dedicated-LNG vessels have been ordered by Norway’s Buksér og Berging and are to enter service in late 2013 for Statoil, Rolls says, and for Gassco, operator of the gas transportation network off the Norwegian coast.
“This is a breakthrough for our Bergen gas engines and cutting edge propulsion technology,” senior VP Robert Løseth said in a release.
In addition to two methane engines and an LNG tank system, the boats for Buksér og Berging will be the first with newly designed Rolls-Royce US35 azimuth thrusters with improved hydrodynamic performance and hull integration, “which will provide the quick and responsive maneuvering that is critically important for tug operators.”
Overall greenhouse gas emissions reductions are estimated at 30%.
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