In the former USSR this aircraft was manufactured between the late 50s and the middle 70s. The MiG-21 is the world champion in the number of the air vehicles produced (11,000) and in airframe service life (up to 30 years). That is why about 3,000 MiG-21 are now operated by the air forces of more than 40 countries. The MiG-21 is close to setting another world record in the amount of the upgraded aircraft