The Russian OTR-21 Tochka aka 9K79 (NATO designation was SS-21 Scarab) is a short range ballistic missile system developed in the 1970’s, that fired guided missiles and provide a level of accuracy the older FROG-7 AKA 9K52 Luna-M, lacked and therefore could be used as a strategic weapon. This saw the vehicle replace the FROG-7 in Russian service.
Thou similar in appearance to the OTR-23, that vehicle is larger due to the increased size of the missiles it uses, which are used for long range attacks. That vehicle is a 8×8 configuration where as the OTR-21 is a 6×6 configuration.
After 3:30 is this vehicle
The vehicle was built in 3 versions, each an improved one over the other, focusing on the increased range of the missile and accuracy.
The initial Scarab A entered service with the Soviet Army in 1975. It carries one of three types of warhead:
482 kg (1,060 lb) of conventional HE
fragmentation (lethal radius more than 200 m (660 ft)
The minimal range is about 15km and maximum range is 70km its Circular Error Probable (CEP) is estimated to be about 150m.
The improved Scarab B (Tochka-U) was introduced in 1989. Improved propellant increased the range to 120 km. Its CEP was significantly improved, to less than that 95m.
As the third variant, itwas developed in the 1990s. Again, its range was increased to 185km, and CEP decreased.
Russia has used the system during the Chechen Wars and the 2008 South Ossetia war.