The R-37M designation has since been used for a modernized variant of the missile, also known as RVV-BD (Raketa Vozduh-Vozduh Bolyshoy Dalnosty, or Long-Range Air-to-Air Missile). R-37M’s range exceeds 300km, and it is capable of hypersonic speed (~Mach 6) in the final stage of its flight. It will be carried by the modernized MiG-31BM interceptors and Su-35S and Su-57 multirole fighters. It is not known whether the long range air-to-air missile for the Su-57, designated as "Izdeliye 810", is a derivative of the R-37M.