The Trent XWB -97 is undergoing a rigorous test regime right now as it prepares for first flight later this year on an Airbus A380 flying test bed (FTB) and subsequent entry into service on the A350-1000 in 2017.
As of today, there are 4 engines running in the development program for the -97.
The 1st development engine conducted proving runs up until September/2014. It provided a lot of useful data to the development team and that engine will now go on and do major tests such as ‘bird strike’.
A 3rd engine has been performing endurance work and has also been x-rayed on a test bed in Derby, UK. Dynamic x-rays show the behavior of the components inside the engine as it operates, which can