1st option: Starting a certain number of production with the F110 engine. 2028 beginning of limited series production.
2nd option: What I understand; We are in talks with RR for a domestic engine, the project of which belongs to RR, to be produced or to be produced in Turkey. As far as I know, there is no certainty yet. I don't think the USA will allow it if the engine is f136, I think it must be a new concept. 2022-? when will it finish?
3rd option: TRMotor has been working on the concept project of the domestic-national engine for about 5 years. The second phase of this project has been passed. It will likely be completed in 2028.
The strategy of buying ready-made in the short term, co-production in the medium term, and developing and producing one's own design in the long term seems to be a good way. What I don't understand is how many years will it take to produce an engine of this size if the RR starts today?
Your first option is what SSB president has told everyone anyway. He even insinuated that the supply/production/purchase of F110s needed for the first production run have been confirmed.
For your second option, one has to remember that US pulled out of f136 project altogether. RR may not even produce the f136 as it was first produced anyway, since it was a joint effort with GE. But RR can retain the essence of the technology and apply it to a new engine that would resemble a hybrid of f136 and F110-GE-129-EFE. In fact they may even use the design parameters TR-Motor have been working on. After all, they are a production orientated company in essence. What would take TEI years, may be close to a decade, to perfect, they would realise it within a fraction of the time. All of the British Airways planes have RR emblem on them. They are mostly RR produced engines, and/or usually derivatives of the original US engines. So it would be easy for RR to emulate western engines.
TR-Motor is a design bureau and can not produce an engine. But the work they have done to date, in the hands of a company like RR, can transform in to an engine that would suit our needs in a short time. TR-Motor’s recent cooperation with Ivchenko Progres, if they managed to employ some of their staff, may prove to be an asset to help speed things up.
But as we have examples in front of us where even a simple engine like a turbo shaft TS-1400 is not going to be ready for serial production before 2025 at best, to expect a stealthy turbofan engine the size of a f110 or even f136 to be ready before mid 2030s is nothing but, wishful thinking. We do need the collaboration with RR to make it all happen. The other options are just too long winded and not really feasible.
Just look at Japan! A country that can and have produced large turbofan engines, is going in to collaboration with RR. We need to be tied to western technology. There will be variable cycle turbofans and “variable-cycle-turbofan- ramjet engines” to come yet. We need to have our foot in the door to keep the technology flowing our way.
An improved variable cycle turbofan-ramjet engine is disclosed. The engine includes a split fan assembly, a bypass channel surrounding a core engine and a mode selector valve for selectively bypassing air around an aft fan and the core engine. In a first, single bypass mode of operation, the...
patents.google.com
www.geaviation.com
