R-29RM Shtil

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R-29RM Shtil/RSM-54
Soviet Military Power DD-ST-85-06588.JPEG
Service history
In service1986–2010
Used by Soviet Navy
Russian Navy
Production history
Designer Makeyev Rocket Design Bureau
Manufacturer Krasnoyarsk Machine-Building Plant
Mass40.3 tonnes
Length14.8 metres
Diameter1.9 m
WarheadThe payload (2800 kg) was capable of carrying ten 100 kT yield MIRV warheads, though only a four MIRV warhead version entered production.
Blast yield200 kt each [1]

EngineThree-stage liquid-propellant rocket
8,300 kilometres (5,200 mi)

The R-29RM Shtil [2] (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. [3] 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). [4] They were replaced with the newer R-29RMU Sineva and later with the enhanced variant R-29RMU2 Layner.



Operation Behemoth

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. [5]

Space Launch Vehicle

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 service

The last boat carrying R-29RM, K-51 Verkhoturye, went into refit to be rearmed with the newer R-29RMU Sineva on 23 August 2010. [6]


Former operators

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See also

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  1. – Russian Strategic Nuclear Forces (rus)
  2. Aviation.ru – Missiles Archived 4 November 2008 at the Wayback Machine
  3. "R-29RM Shetal/Sineva (SS-N-23 'Skiff'/RSM-54/3M27) (Russian Federation), Offensive weapons". Janes.com.
  4. CSIS Missile Threat SS-N-23
  5. "Submarine-launched ballistic missiles". russianspaceweb.com. Retrieved 25 August 2019.
  6. "SSBN K-51 Verkhoturye arrived to Zvezdochka for repairs today". Rusnavy.com. 23 August 2010.