| RT-20P | |
|---|---|
 | |
| Type | ICBM |
| Place of origin | USSR |
| Production history | |
| Designed | 1961-1964 |
| Produced | 1964-1967 |
| Specifications | |
| Mass | 30,200 kg (66,600 lb) +545 kg (1,202 lb) (Light Warhead version) +1,410 kg (3,110 lb) (Heavy Warhead version) |
| Length | 17.48 m (57.3 ft) 'Light' Warhead 17.80 m (58.4 ft) 'Heavy' Warhead |
| Diameter | 1.8 m (5 ft 11 in) |
| Warhead | Single 400kt 'Light' Warhead or Single 1MT 'Heavy' Warhead |
| Engine | Solid fueled First Stage Liquid fueled Second Stage First stage: 15D15Solid Rocket Motor Second Stage: RD-857 Liquid Rocket Engine[1] |
| Propellant | Solid Propellant AK-27P +UDMH |
Operational range | 11,000 km (6,800 mi) (Light warhead) 8,000 km (5,000 mi) (Heavy warhead) |
Guidance system | inertial |
| Accuracy | CEP 4 km |
Launch platform | TEL; platform based onT-10 tank |
TheRT-20P[2][3] was an experimentalintercontinental ballistic missile (ICBM) developed but not deployed by theSoviet Union during theCold War. The control system for it was designed atNPO "Electropribor"[4] (Kharkiv,Ukraine). It was assigned theNATO reporting nameSS-15 Scrooge and carried theGRAU index8K99. The RT-20 was the first mobile ICBM designed by theSoviet Union. Its launch platform was based on theT-10 tank.
In the late 50s, the USSR started studying the usage ofsolid rocket motors and other modern technologies such asturbojets inICBMs to improve their performance.From 1961 to 1962, several concepts of the missile were proposed atOKB-586 and in 1963 development was transferred to their R&D, with the ultimate goal of creating an ICBM with a total mass of no more than 30 tons. In 1964, preliminary design of the missile was completed and test firings of the engines commenced in 1965.On September 27, 1967, the missile had its first test flight[5] and from October 1967 onward, flight tests of the missile were carried out at the 53rd Scientific Research Proving Ground (53rd NIIP). On October 6, 1969, development of the missile was discontinued to unwillingness of theStrategic Rocket Forces to work with a missile containing both liquid and solid propellant.[6]
Despite never being deployed, the missile provided the groundwork for other mobile ICBMs, such as theRT-21 Temp 2S and theRT-2PM Topol.[5]
Soviet Union
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