RK-55
Russian surface and submarine-launched nuclear cruise missile / From Wikipedia, the free encyclopedia
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The Novator RK-55 Relief (Russian: РК-55 Рельеф 'Relief'; NATO: SSC-X-4 'Slingshot'; GRAU: 3K12) is a Russian Navy cruise missile that is launched either from submarines (SLCM) or from surface ships. It can have a nuclear warhead developed in the Soviet Union. A version launched from submarine torpedo tubes, the S-10 Granat (SS-N-21 'Sampson'; GRAU: 3K10), has apparently been converted to carry conventional warheads and continues in service to this day.[3] The Russian Federation was reported to have deployed the derivative SS-CX-7/SS-CX-8 systems on 14 February 2017. The land launched version is called the Novator 9M729.
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RK-55 Relief (NATO reporting name: SSC-X-4 'Slingshot') S-10 Granat (SS-N-21 'Sampson') | |
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Type | surface/sub-launched nuclear cruise missile |
Place of origin | Soviet Union |
Service history | |
In service | since 1984 |
Used by | Soviet Union / Russia |
Production history | |
Designer | L. V. Lyulev, Novator NPP Temp, Raduga |
Designed | 1975 |
Manufacturer | Novator, NPP Temp, Raduga MKB, KhAZ (Kharkiv), others? |
Produced | 1976 |
Specifications | |
Mass | 1,700 kg (3,750 lb) |
Length | 809 cm (26 ft 7 in) |
Diameter | 51 cm (20.1 in) |
Wingspan | 310 cm (122.0 in) |
Warhead | Conventional Nuclear |
Blast yield | Nuclear 200kt [1] |
Engine | Solid-propellant rocket booster + R-95-300 or 36MT-37 turbofan 450 kgf |
Operational range | 3,000 km (1,600 nmi)[2] |
Maximum speed | 720 km/h (447.4 mph) |
Guidance system | Sprut inertial guidance plus TERCOM |
Launch platform | Akula, Sierra II, Victor III, Yankee Notch, and Yasen-class submarines, TEL |
The RK-55 is very similar to the air-launched Kh-55 (AS-15 'Kent') but the Kh-55 has a drop-down turbofan engine and was designed by MKB Raduga.[4] Both have formed the basis of post-Cold-War missiles, in particular the 3M-54 Kalibr which has a supersonic approach phase.[5]