"No passive flight phase of the missile, due to three component liquid engine."
What do you mean, Hpasp? Does the missile go out of control as soon as the fuel runs out?
And what is 'three component' and what (technical) difference versus Volkhov does it make?
Beside the two nasty material, used by the Volhov missile...AK-20K “Melanj” oxidizer (“O” substance) tank.
Weight / Composition: 550kg / Nitric Tetroxide in solution with Nitric Acid, with Phosphoric and Fluoric acid inhibitors.
20±2,5% N2O4, 73,4% HNO3, 1-1,25% H3PO4, 0,5% HF, 2±0,8% H2O
Orange-brown, evaporating liquid. Self ignites combustibles. Highly corrosive, only few materials can withstand its effect: chromium steel, pure aluminum, glass, and for a short period, some rubber mixes.TG-02 “Samine” fuel (“G” substance) tank.
Weight / Composition: 250kg / mixture of xilidine, and triethylamine.
50% C8H11N, 50% C6H15N
Oily liquid, with color from yellow to dark-brown, and an odor typical for for satured animes.
Strong nerve agent, fatal concentration in air is: 18mg/liter!
... the Dvina missiles used a third one also...OT-155 "Isopropyl nitrate" monocomponent fuel ("I" substance)
... as nasty as the other two.