Rolls-Royce bagged a new customer on Thursday, after Japanese airline Skymark Airlines selected its Trent 900 engines to power six Airbus A380 aircraft."Skymark will benefit from the commitment of Rolls-Royce to continually improve the performance and dependability of its engines. The Trent 900s it has ordered will incorporate enhancements in design and materials that will yield almost a 2% improvement in fuel efficiency compared with those in service today," the statement said.Trent 900 engines were used in the very first A380 to enter service 2007, the group said. More than two-thirds of airlines who have ordered the aircraft are now using the engines."This latest order, from a new customer, confirms the Trent 900 as the true market leader and engine of choice for the majority of A380 operators," said Rolls-Royce senior vice president Jim Sheard.Rolls announced on Wednesday that it has won a contract from India's Cochin Shipyard to supply 60 water jets for a fleet of fast petrol vessels for the Indian Coast Guard.By 09:55, shares were 0.41% higher at 613.5p.BC