Answer:-
Better if
@rodeo can provide any article or tweet regarding it
I'm not working for TAI so I cannot know to what degree BAE is involved with the design. They provide assistance. It's Turkey's project after all. All IP belongs to us. TAI have powerful supercomputers to aid design process. It's not like we're in the 80s. And we've been using BAE infrastructure for some testing because we had not the proper testing facilities.
This is from BAE Systems Website from 2017:
Ankara, Turkey: In the presence of The Prime Ministers of Turkey and the United Kingdom, BAE Systems and Turkish Aerospace Industries (TAI) today signed a Heads of Agreement to collaborate on the first development phase of an indigenous fifth-generation fighter jet for the Turkish Air Force – TF-X.
This announcement builds upon a pre-contract study phase between BAE Systems and TAI.
Signing this agreement in Ankara ahead of a planned contract with a value in excess of £100 Million, BAE Systems Chief Executive, Ian King, said: ‘‘BAE Systems is a leader in designing, manufacturing and supporting fighter aircraft and is in an excellent position to contribute technical and engineering expertise and experience of managing complex projects to this key Turkish programme. The announcement signals an exciting next step in relations between both Turkey and the UK with the co-operation between BAE Systems and TAI paving the way for a deeper defence partnership. The agreement confirms ongoing collaborative work on the design and development of the aircraft."
At its peak hundreds of Turkish and UK engineers will collaborate on the TF-X programme helping to support collaboration on the skills, technology and technical expertise required to deliver the programme.
BAE Systems and Turkish Aerospace Industries (TAI) today signed a Heads of Agreement to collaborate on the first development phase of an indigenous fifth-generation fighter jet for the Turkish Air Force – TF-X.
www.baesystems.com