The Su-57 became the second.
This is the story of the ill-fated MiG 1.44.
In 1979, Soviet high command determined that a new generation of fighter aircraft was needed to ensure the competitiveness of the Soviet Air Force (VVS) into the 1990’s and beyond. The timing could not have been more apt; it was only several years later that the US air force began researching and developing what would become the highly capable F-22 fighter.
The project, which became known as MFI...
Read this story at The National Interest