Rolls-Royce has received a $2bn contract from United Airlines, to supply its Trent XWB engines, to power the airline’s new 25 Airbus A350 XWB and provide TotalCare long-term service support.

Specifically developed for the Airbus A350 XWB, the Rolls-Royce Trent XWB will minimise the aircraft’s overall environmental impact.

Considered as the most fuel efficient and environmentally sensitive large engine design available on the market, the Trent XWB’s fuel efficiency rate is 28% higher than pre-Trent-generation engines.

United Airlines president John Tague said the Rolls-Royce Trent XWB offered the power and economical efficiency the airline expected from the A350 XWB, while providing the performance and reliability their customers expect from one of the world’s largest airlines.

Equipped with an advanced cockpit and onboard systems to optimise robustness and simplicity, the delivery of the A350 XWB aircraft will take place from 2016 to 2019.

The lightweight airframe and optimised wing design gives the A350 XWB an excellent range during long flight.