MiG-21S (1964; Izdeliye 95; NATO "Fishbed-J")
The production version of the Ye-7S. This was fitted with the RP-22 radar (production version of the Sapfir-21 radar) working together with a ASP-PF-21 computing gunsight. The airframe was different from that of the MiG-21PFM by using the same saddle tank as in the MiG-21R. The MiG-21S had an R11F2S-300 powerplant and an AP-155 autopilot featuring a 'panic button' autorecovery system. The MiG-21S could carry the GP-9 cannon pod. It had four underwing hardpoints, with the two outboard pods being "wet", that is, they could carry drop tanks. It could carry all weapons that the MiG-21PFM could, with the addition of the R-3R (K-13R) missile, the semi-active radar homing variant of the K-13. MiG-21S was produced from 1965 to 1968 and delivered only to the Soviet air force.