R-29RM
| R-29RM / RSM-54 | |
|---|---|
| Type | SLBM | 
| Service history | |
| In service | 1986–2010 | 
| Used by | Soviet Navy Russian Navy | 
| Production history | |
| Designer | Makeyev Rocket Design Bureau | 
| Manufacturer | Krasnoyarsk Machine-Building Plant | 
| Specifications | |
| Mass | 40.3 tonnes | 
| Length | 14.8 metres | 
| Diameter | 1.9 m | 
| Warhead | The payload (2800 kg) was capable of carrying ten 100 kT yield MIRV warheads, though only a four MIRV warhead version entered production. | 
| Blast yield | 200 kt each | 
| Engine | Three-stage liquid fueled stages using N2O4/UDMH propellant | 
| Operational range | 8,300 kilometres (5,200 mi) | 
| Guidance system | Astroinertial | 
| Accuracy | CEP 500 metres | 
The R-29RM (Russian: Р-29РМ, NATO reporting name SS-N-23 Skiff) was a liquid propellant, submarine-launched ballistic missile in use by the Russian Navy. It had the alternate Russian designations RSM-54 and GRAU index 3M27. It was designed to be launched from the Delta IV submarine, each of which is capable of carrying 16 missiles. The R-29RM could carry four 100 kiloton warheads and had a range of about 8,500 kilometres (5,300 mi). They were replaced with the newer R-29RMU2 Sineva and later with the enhanced variant R-29RMU2.1 Layner.