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R-29RM Shtil

Type Strategic SLBM
Service history
In service since 1986
Used by Soviet Union / Russia
Production history
Manufacturer Krasnoyarsk Machine-Building Plant
Weight 40.3 tonnes
Length 14.8 metres
Diameter 1.9 m
Warhead 4
Blast yield 100 kt each

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

The R-29RM Shtil[1] (NATO designation SS-N-23 Skiff) is a liquid propellant, submarine-launched ballistic missile in use by Russia. It has the alternate Russian designations RSM-54 and 3M27.[2] It is designed to be launched from the Russian Delta IV submarine, each of which is capable of carrying 16 missiles.

On 6 August 1991 at 21:09 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"). The first and the last missiles hit their targets successfully, while the others were self-destroyed in the air according to the plan.

The R-29RM carries four 100 kiloton warheads and has a range of about 8,500 kilometres (5,300 mi).[3] A derivative, the R-29RMU Sineva, entered service in 2007. The last boat with R-29RM, K-51 Verkhoturye, went into overhaul for rearming with R-29RMU on 23 Aug 2010.[4]


  • Operation Behemoth 1
  • Operators 2
  • References 3
  • External links 4

Operation Behemoth

Operation Behemoth entailed SSBN K-407 Novomoskovsk launching its full ammunition load of 16 missiles, the first such test in the world. Previously the largest number of missiles launched from a submerged SSBN was four Trident II missiles.


 Soviet Union


  1. ^ – Missiles
  2. ^ "R-29RM Shetal/Sineva (SS-N-23 'Skiff'/RSM-54/3M27) (Russian Federation), Offensive weapons". 
  3. ^ SS-N-23
  4. ^ "SSBN K-51 Verkhoturye arrived to Zvezdochka for repairs today". 23 August 2010. 

External links

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