However, at the time seating space was more generous and carry-on baggage was not the issue it is today.
Work on the first UltraFan engine is underway at Rolls Royce’s dedicated DemoWorks facility in Derby, UK, and the demonstrator engine will be completed by the end of 2021.
Rolls Royce says that the engine promises 25 percent fuel efficiency improvement compared with the first generation of its Trent engines, which power the A330 used by Qantas.
And it is that sort of efficiency gain that makes a twin-aisle design economically viable.
Rolls-Royce has started building the world’s largest aero-engine, the UltraFan, and in a reversal of fortune is now engaged in discussions with Boeing for its proposed new mid-market aircraft – the 797.
Two years ago, Rolls Royce, stunned the aviation world by pulling out of the race to power Boeing’s 797 after it announced a £2.9 billion loss over costs to rectify durability faults on its Trent 1000 engines.
The 797 is expected to be a twin-aisle 220-270 seat aircraft in a 2-3-2 configuration in economy that would have a range of about 10 hours and sits between the smaller single-aisle 737/A320 read more ⇒