RM-51

• Name — RM-51 multiple rocket launcher • Origin — Czechoslovakia • Type — Self-propelled multiple rocket launcher • Is Artillery — yes • Is Vehicle — yes • Service — 1956–late 1990s • Used By — See users • Designer — Škoda, Zbrojovka Brno and VTÚ • Design Date — 1949–1956 • Manufacturer — Škoda • Variants — vz. 51, M-51, R-2 • Weight — 7.575 tonnes • Length — 7 m • Width — 2.38 m • Height — 2.18 m • Crew — 6 • Caliber — Diameter: 130 mm Length:.8 m Weight: 24.2 kg • Barrels — 32 (4 rows) • Rate — 32 rockets in 12.4 seconds (2 min. reloading time) • Velocity — 420 m/s • Max Range — 8.2 km • Elevation — +50°/0° • Traverse — 240° (120° left/right) • Primary Armament — ORNNG missiles with NZ-60V warhead • Suspension — 6×6 wheeled • Speed — 40 km/h (road) 10 km/h (cross-country)

• 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.

• – 18 delivered in 1974, designated M-51. • – 24 delivered in 1963. • – 6 in service as of 2021. • – In 2012, Indonesian Army retrofitted their RM-51, including replacing the original Praga V3S truck with Reo M35A2 truck. • Czechoslovakia • – 20 delivered between 1965 and 1966. • – 50 delivered between 1957 and 1958. • – 36 delivered between 1976 and 1977. • – 58 delivered between 1956 and 1965. Designated R-2, the launchers were later mounted on ZIL-157 trucks.

• Illustration — Vintage vz. 51 on Praga V3S chassis • Illustration — Egyptian vz. 51 during Six-Day War • Illustration — Captured Egyptian vz. 51 at parade in Jerusalem, 1968