Singapore Airlines has selected the Rolls-Royce Trent 1000 engine to power 50 of its Boeing 787 Dreamliner aircraft.
The airline decided between two competing models, following a detailed assessment of offers.
Singapore Airlines will operate 30 787-10X aircraft, while its subsidiary Scoot will operate ten each of Boeing's 787-8 787-9 airliners.
The engine selection follows Singapore Airlines' agreement with Boeing on 30 May for the purchase of 30 B787-10Xs, which are intended for use on medium-haul routes.
The deal with Boeing is conditional upon Boeing's formal launch of the stretched version of its 787 Dreamliner.
The engine order with long-term TotalCare service support is valued at $4bn based on the current list prices.
Under the support agreement, Rolls-Royce will provide maintenance, repair and overhaul services for the engines and will also offer spare engine support.
The Trent 1000 powered Boeing 787 Dreamliner entered service in October 2011 and has logged more than 50,000 flight hours to date, with a 99.9% dispatch reliability.
"Rolls-Royce will provide maintenance, repair and overhaul services for the engines and will also offer spare engine support."
Rolls-Royce stated that the Trent 1000, which is designed to meet the thrust requirements for all versions of the Boeing 787 Dreamliner, delivers the best fuel burn performance on the aircraft.
Rolls-Royce South East Asia regional director Jonathan Asherson said that the decision for Trent 1000 engines underpinned the strong partnerships the company has developed with Singapore over many years.
"Singapore Airlines, and SIA Engineering have been core components of the company's strategic relationships which include major services and manufacturing activity, technology acquisition and training," Asherson said.
Singapore Airlines and Scoot currently operate 88 Rolls-Royce powered airliners, with a further 88 on order.
Image: An artist's impression of the Boeing 787 in Singapore Airlines livery. Photo: courtesy of Singapore Airlines.