R-29RM Shtil

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Type Strategic SLBM
Service history
In service since 1986
Used by Soviet Union / Russia
Production history
Designer Makeyev Rocket Design Bureau
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 the Russian Navy. It has the alternate Russian designations RSM-54 and 3M27.[2] It is designed to be launched from the Delta IV submarine, each of which is capable of carrying 16 missiles.

Operation Behemoth[edit]

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.

Previously, the largest number of missiles launched from a submerged SSBN was four Trident II missiles.


The R-29RM carries four 100 kiloton warheads and has a range of about 8,500 kilometres (5,300 mi).[3]

End of service[edit]

The last boat with R-29RM, K-51 Verkhoturye, went into overhaul for rearming with successor missile R-29RMU Sineva, which had entered service in 2007, on 23 August 2010.[4]


 Soviet Union


External links[edit]