said last year they won't do a "brand-new turbine" just for the A380. Therefore, it'll have to be paired with a re-engine for the A350. So I'd say something along the lines of:
2025 - EIS of A380neo with widebody version of RR
's Ultrafan, a geared turbofan design
2026-27 - EIS of A350neo with same engine, but after they've had time to deal with any "teething" issues like Pratt has experienced
I think that is one very possible scenario - if they can wait until 2025 with zero slippages.The 'Advance' engine core is a huge leap in itself.As is the 3d carbo/titanium wid(er) chord blades and associated carbon casing.
The Ultra envisages gearing.Gearing a giant high bypass engine of the size we are talking about is a vast undertaking.Far harder then that which P&W are doing now.
The 'Ultra' also envisages Variable Pitch on top of this! Not sure anyone has tried this on a 'fan' before - certainly not at this size. That's a vast array of new untried technology to put into an engine in one go. (Note they are developing a new combustor as well).
Personally I think that 'The Advance' engine is far more likely.But we will see.This additional order will allow the production line to stagger on to 2023. So I would envision that being the date. It also matches better for any other airline that presently operates 380's.
And yes the new engine would/could be offered for the 350 and indeed the 789/10.