RSD-10 Pioneer
| RSD-10 Pioneer SS-20 Saber | |
|---|---|
| RSD-10 Pioneer missile and launcher on display in Vinnytsia | |
| Type | Intermediate-range ballistic missile | 
| Place of origin | Soviet Union | 
| Service history | |
| In service | 1976 – 1988 | 
| Used by | Soviet Strategic Rocket Forces | 
| Production history | |
| Designer | Alexander Nadiradze (Moscow Institute of Thermal Technology) | 
| Manufacturer | Votkinsk Machine Building Plant | 
| Specifications | |
| Mass | 37,100 kg (81,800 lb) | 
| Length | 16.5 m (54 ft) | 
| Diameter | 1.8 m (5 ft 11 in) | 
| Warhead | 1 x 1 Mt or 3 x 150 kt | 
| Engine | Two-stage solid-fuel rocket | 
| Operational range | 5,800 km (3,600 mi) | 
| Maximum speed | Up to 7.43 km/s | 
| Guidance system | Inertial | 
| Accuracy | 150-450 m CEP | 
| Launch platform | Road-mobile TEL | 
The RSD-10 Pioneer (Russian: ракета средней дальности (РСД) «Пионер» tr.: raketa sredney dalnosti (RSD) "Pioner"; English: Medium-Range Missile "Pioneer") was an intermediate-range ballistic missile with a nuclear warhead, deployed by the Soviet Union from 1976 to 1988. It carried GRAU designation 15Ж45 (15Zh45). Its NATO reporting name was SS-20 Saber.
Its deployment was a major cause of NATO's 'Double-Track Decision', which led to the deployment of more medium-range nuclear weapons in Western Europe. The RSD-10 was withdrawn from service under the 1987 Intermediate-Range Nuclear Forces Treaty.