R-27 Zyb
The R-27 Zyb (Russian: Р-27 «Зыбь», lit. 'Ripple') was a submarine-launched ballistic missile developed by the Soviet Union and employed by the Soviet Navy from 1968 through 1988. NATO assigned the missile the reporting name SS-N-6 Serb. In the USSR, it was given the GRAU index 4K10. It was a liquid fuel rocket using a hypergolic combination of unsymmetrical dimethylhydrazine (UDMH) as fuel, and nitrogen tetroxide (NTO) as oxidizer. Between 1974 and 1990, 161 missile launches were conducted, with an average success rate of 93%. Total production was 1800 missiles.
Simple scheme of an R-27 missile | |
| Place of origin | USSR |
| Service history | |
| In service | 1968 - 1988 |
| Used by | Soviet Navy |
| Production history | |
| Designer | Makeyev Rocket Design Bureau |
| Designed | 1962 - 1968 |
| Manufacturer | Zlatoust Machine-Building Plant Krasnoyarsk Machine-Building Plant |
| No. built | ~1800 produced |
| Variants | R-27 R-27U R-27K |
| Specifications | |
| Mass | R-27/R27-U: 14,200 kg (31,300 lb) R-27K: 13,250 kg (29,210 lb) |
| Length | R-27/R27-U: 8.890 m (29.17 ft) R-27K: 9.000 m (29.528 ft) |
| Diameter | R-27/R27-U/R-27K: 1.500 m (4.92 ft) |
Main armament | R-27: Single warhead, 1 MT yield R-27U: Single warhead, 1 MT yield or 3x 0.2 MT Warheads |
| Payload capacity | R-27: 650 kg (1,430 lb) Single Warhead R-27U: 650 kg (1,430 lb) Single Warhead or 3x 0.2 MT Warheads 170 kg (370 lb) each |
| Propellant | N2O4/UDMH |
Operational range | R-27: 2,400 km (1,500 mi) R-27U: 3,000 km (1,900 mi) |
| Flight ceiling | R-27: 620 km (390 mi) |
| Boost time | R-27: 128.5 Seconds |
| Accuracy | R-27: CEP 1.9 km (1.2 mi) R-27U: CEP 1.3–1.8 km (0.81–1.12 mi) R-27K: CEP 0.37 km (0.23 mi) |
Launch platform | Yankee-class submarine |
The R-27 missiles were deployed on the Yankee I submarines, including the K-219.
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