Rolls-Royce has invested £90 million ($128 million) in this one-of-a-kind testbed. With an internal surface of 7,500 m2 (80,730 ft2), it’s the biggest facility of this type in the world.

Rolls-Royce, Airbus's exclusive engine partner on its widebody planes and a supplier to Boeing's 787, is forecasting underlying operating profit of between 2.1 billion pounds and 2.3 billion ...