22D

Russian surface-to-air missile. Prototype surface-to-air missile, using liquid-propellant ramjets in place of the air-augmented solid propellant of the 17D.

The 22D the three-stage V-758 rocket, used a packet scheme. Two solid propellant boosters accelerated the 54aGG core vehicle to ramjet ignition speed. Then they were jettisoned, and the Bondaryuk RD-046 liquid-fuelled ramjet, with four small inlets, provided thrust to take the missile to its target in supersonic cruise. Fight trials were completed in 1966.