launches: 14 Number of failed launches: 3 Status: Canceled Launch vehicle (stage 1) Function: Multi-purpose launch vehicle Engine: 2× Burya booster with S2.1150 engine Length: 18.9 m Diameter: 1.45 m Thrust: 68.61 t Oxidizer: Nitric acid Combustible: Amine Cruise missile (stage 2) Engine: 1× RD-012U ramjet Cruise Speed : Mach 3.1-3.3 Maximal speed in test: Mach 3.4-3.5 (3 700 km/h) Range: 8000 - 8,500 km Maximal range in test: 6,500 km Flight altitude: 18–25,5 km Warhead: thermonuclear, 2190 kg Length: 18.0 m Diameter: 2.20 m Wing span: 7.75 m Wing area: 60 m² References Cruise missiles of the Cold War Nuclear cruise missiles of the Soviet Union Lavochkin Ramjet engines Abandoned military projects of the Soviet Union