RM-51

Variants

• vz. 51 - Original model, based on Praga V3S 6×6 truck.
• M-51 - Export version used by Austria, based on Steyr 680 M3 6×6 truck.
• RM-51 - Export variant, based on ZiS-151 and ZIL-157 6×6 trucks.

  Operators

• - 18 delivered in 1974, designated M-51.
• - 24 delivered in 1963.
• -
• - 20 delivered between 1965-1966.
• - 50 delivered between 1957-1958.
• - 36 delivered between 1976-1977.
• - 58 delivered between 1956-1965. Designated R-2, the launchers were later mounted on ZIL-157 trucks.