The R-29RM Shtil (Russian: Штиль, lit. "Calmness", 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.
|Used by||Soviet Navy|
|Designer||Makeyev Rocket Design Bureau|
|Manufacturer||Krasnoyarsk Machine-Building Plant|
|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|
|8,300 kilometres (5,200 mi)|
|Accuracy||CEP 500 metres|
Development of the R-29RM started in 1979 at the Makeyev Rocket Design Bureau. The navy accepted the armament in 1986 and subsequently installed the D-9RM launch system consisting of a cluster of 16 R-29RM onboard the nuclear-propelled Project 667BDRM submarines.
On 6 August 1991 at 21:09, K-407 Novomoskovsk, under the command of Captain Second Rank Sergey Yegorov, became the world's only submarine to successfully launch an all-missile salvo, launching 16 R-29RM (RSM-54) ballistic missiles of total weight of almost 700 tons in 244 seconds (operation code name "Behemoth-2"). All the missile hit their designated targets at the Kura Missile Test Range in Kamchatka.
Space Launch VehicleEdit
Several R-29RM were retrofitted as Shtill carrier rockets to be launched by Delta-class submarines, the submarines being mobile can send a payload directly into a heliosynchronic orbit, notably used by imaging satellites. Outside the confines of the Russian military, this capability has been used commercially to place three out of four microsatellites into a low Earth orbit with one cancellation assigned to the Baikonur Cosmodrome for better financial terms.
End of serviceEdit
- Russian Navy (1992-2010)
- Soviet Navy (1986-1991)
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