R-29RM

R-29RM
Name	R-29RM
Origin	Soviet Union
Type	submarine-launched ballistic missile
Service	1986–present
Used by	Russian Navy
Designer	Makeyev Rocket Design Bureau
Manufacturer	Makeyev Rocket Design Bureau, NPO Mashinostroyeniya
Launch platform	Dmitry Donskoy (TK-208), Delta IV-class submarine, Typhoon-class submarine

R-29RM is a Soviet-era submarine-launched ballistic missile developed during the late Cold War and deployed by the Soviet Navy and later the Russian Navy. Designed for deployment on strategic ballistic missile submarines, it contributed to the sea-based leg of the nuclear triad alongside systems fielded by United States Navy, Strategic Rocket Forces of Russia, and NATO forces. The missile family underwent multiple modernizations and entered service in the 1980s, remaining in limited operational use into the 21st century.

Design and Development

Development began at the Makeyev Rocket Design Bureau in response to requirements from the Soviet Navy and directives from the Ministry of Defence (Soviet Union). The program paralleled advances made by Western programs including Trident I (C4), Trident II (D5), and influenced procurement debates involving the Admiralty Shipyards and Sevmash. Design goals emphasized multiple independently targetable reentry vehicle capability, submerged launch from Ballistic missile submarine classes such as Delta IV-class submarine and compatibility with strategic platforms like Dmitry Donskoy (TK-208). Testing utilized ranges controlled by the State Central Range and authorities including the Military Industrial Commission.

Contributors included the Makeyev Rocket Design Bureau for airframe and propulsion, NPO Mashinostroyeniya for systems integration, and subcontractors such as KBM and TsNIIKhM. Trials involved collaboration with the Northern Fleet and the Pacific Fleet, with instrumentation and telemetry support from the Russian Space Forces and naval test centers formerly reporting to the Soviet Armed Forces.

Technical Specifications

The missile employed a multi-stage liquid-propellant architecture derived from prior Makeyev designs and optimized for buoyant tube launch. Propulsion used storable hypergolic propellants and engines developed by specialists from VDI and design teams experienced with earlier models fielded by the Soviet Navy. Its guidance suite combined an inertial navigation system developed by Polyus-linked institutes and astrocorrection elements influenced by systems used on Topol and SS-18 Satan programs, with onboard computing from NPO Elektronmash.

Warhead configuration provided multiple independently targetable reentry vehicles developed by VNIIEF and designed to meet strategic requirements laid down by the General Staff of the Armed Forces. The missile’s launch sequence, cold-launch canister design, and buoyant ejection system reflected engineering practices employed at Sevmash and logistic doctrines coordinated by the Ministry of Defense (Russia).

Operational History

Entry into service occurred in the mid-1980s amid strategic force realignments involving General Secretary Mikhail Gorbachev’s tenure and subsequent treaties such as the Intermediate-Range Nuclear Forces Treaty and the Strategic Arms Reduction Treaty. Deployment concentrated on Delta IV-class submarine patrols with crews trained at naval centers like those under the Northern Fleet command and overseen by officers with experience from operations involving Project 667BDRM platforms.

During the post-Soviet transition, missiles and platforms faced maintenance pressures, budget constraints, and arms-control inspections conducted jointly with delegations from the United States Department of Defense and technical delegations guided by the Soviet/Russian Strategic Rocket Forces. Modernization programs sought to extend operational life while complying with treaties brokered during talks involving delegations from United States, United Kingdom, and France.

Variants and Modernizations

Subsequent versions and uprates resulted from programs run by Makeyev Rocket Design Bureau and NPO Mashinostroyeniya aimed at improving accuracy, survivability, and payload flexibility. Modernization efforts mirrored upgrades seen in systems like RSM-54 and paralleled initiatives for SS-N-23 Skiff and other submarine-launched systems. Specific upgrade packages addressed guidance electronics, reentry vehicle hardening, and constituent materials developed in collaboration with institutes such as TsNIIMash and VNIIAgat.

Compatibility programs enabled retrofit on older hulls by shipyards like Sevmash and Admiralty Shipyards, and some modernization paths informed later projects handled by United Shipbuilding Corporation and research undertaken at Central Scientific Research Institute of Machine Building.

Strategic Role and Deployment

The missile family formed a key component of the Soviet Union and Russian Federation sea-based nuclear deterrent, providing second-strike capability from bastions patrolled by the Northern Fleet and Pacific Fleet. Deployment doctrine capitalized on survivability principles espoused by strategists associated with the General Staff of the Armed Forces and mirrored strategic calculations used by counterparts in the United States Navy and Royal Navy.

Patrols, alert postures, and command-and-control arrangements interfaced with strategic command centers such as those linked to the Main Command Post and communications networks traced back to systems coordinated with Russian Ground Forces strategic components. Arms-control dialogues involving delegations from United States, Russia, and NATO members influenced force posture, modernization timelines, and eventual reductions.

Incidents and Accidents

Operational history included technical incidents typical of complex liquid-fueled strategic systems; mishaps prompted investigations involving the Ministry of Defence (Russia), safety boards akin to those in the Interstate Aviation Committee for other domains, and technical reviews by research institutes such as TsNIIKhM. Some accidents spurred changes to handling procedures at shipyards including Sevmash and training reforms for crews from the Northern Fleet.

High-profile events during the missile’s service life intersected with broader incidents involving Soviet and Russian strategic forces, requiring coordination with international interlocutors including the United States Department of Defense and treaty verification bodies formed under START frameworks.

Category:Submarine-launched ballistic missiles