As it turned out, the requirements were so ambitious they could not be reasonably met with a single type of aircraft. Recognizing the problem, MiG OKB Director Artem Mikoyan successfully lobbied to split the PFT specification in two, resulting in 1970 in the "Heavy PFI (Tyazholyi PFI / TPFI)" and "Lightweight PFI (Logiky PFI / LPFI)" specifications. In fact, the US Air Force had come to a similar conclusion, and had followed up the F-15 program with a lightweight fighter effort of their own, which would result in the General Dynamics "F-16 Falcon". Mikoyan was forced to step down as director-general of the MiG OKB after a heart attack, and then died on 9 December 1970. His place was taken by Rostislav Belyakov. Under Belyakov's direction, the MiG bureau went forward on both TPFI and LPFI designs.
Several MiG TPFI design concepts were developed, some resembling the MiG-25 "Foxbat", but with aerodynamic improvements such as wing-body blending, and some resembling the US North American A-5 Vigilante naval attack aircraft. The Sukhoi OKB won the competition for the TPFI requirement, resulting in what would become the Sukhoi Su-27, and the MiG heavy fighter designs were never built.
I was wondering if there is a picture of that MiG TPFI design that never materialised.
http://www.vostokstation.com.au/aircraft/MiG29.htm
Several MiG TPFI design concepts were developed, some resembling the MiG-25 "Foxbat", but with aerodynamic improvements such as wing-body blending, and some resembling the US North American A-5 Vigilante naval attack aircraft. The Sukhoi OKB won the competition for the TPFI requirement, resulting in what would become the Sukhoi Su-27, and the MiG heavy fighter designs were never built.
I was wondering if there is a picture of that MiG TPFI design that never materialised.
http://www.vostokstation.com.au/aircraft/MiG29.htm