Russian intercontinental ballistic missile. Project work began in 1963 on this three-stage solid propellant ICBM. Five train-launched variants were studied, as well as a silo-launched version. Studies were completed in 1966 but it was decided not to proceed with the concept.
AKA: 15Zh41. Status: Study 1966. Gross mass: 42,000 kg (92,000 lb).