RT-2PM Topol

Last updated
RT-2PM Topol
SS-25 Sickle
Moscow Parad 2008 Ballist.jpg
A Topol on a MAZ-7917 mobile launcher at a Victory Day Anniversary Parade Rehearsal in Moscow, 2008.
Type Intercontinental ballistic missile
Place of origin Soviet Union
Service history
In service1985–present
Used byRussian Strategic Missile Troops
Production history
Designer Alexander Nadiradze [1] [2] (Moscow Institute of Thermal Technology), continued after his death by Boris N. Lapygin.
Manufacturer Votkinsk Machine Building Plant
Produced1985
Specifications
Mass45,100 kg (99,400 lb)
Length21.5 m (71 ft)
Diameter1.8 m (5 ft 11 in)
WarheadSingle 800 kt warhead

EngineThree-stage Solid-fuel rocket
Operational
range
11,000 km (6,800 mi)
Maximum speed approx. 7 kilometres per second (25,000 km/h; 16,000 mph; Mach 21)
Guidance
system
Inertial, autonomous
Accuracy200-900 [3] m CEP
Launch
platform
Road-mobile TEL
Artistic depiction of a SS-25 on Siberia SS-25 Sickle in Siberia.jpg
Artistic depiction of a SS-25 on Siberia

The RT-2PM Topol [4] (Russian : РТ-2ПМ Тополь ("Poplar"); NATO reporting name SS-25 Sickle; GRAU designation: 15Ж58 ("15Zh58"); START I designation: RS-12M Topol) [5] is a mobile intercontinental ballistic missile designed in the Soviet Union and in service with Russia's Strategic Missile Troops. By the early 2020s, all SS-25 ICBMs will be replaced by versions of Topol-M. [6]

Contents

Development

The three stage solid propellant RT-2PM Topol is an improved mobile ICBM which replaced earlier outdated missile complexes. It emerged from the same line of development as mobile missiles such as the RT-21 Temp 2S and the RSD-10 Pioneer, and was deployed as a replacement for the widely deployed UR-100. The United States considered developing their own road-mobile ICBM called the Midgetman, but the program was canceled with the end of the Cold War.

Development of the RT-2PM was approved on July 19, 1977 and carried out by the Moscow Institute of Thermal Technology headed by Alexander Nadiradze. Flight tests were conducted on the Plesetsk test site from February through December 1985. The main problem that had to be overcome during this period was the development of battle management system. After the first test series was successfully conducted in April 1985, with the first regiment with Topol missiles put on alert in July 1985. Throughout this time work continued on improving the battle management system. The test missile firings were finally completed in December 1987. The first regiment of "Topol" missiles employing a modernized mobile command center (in the area of Irkutsk) were put on alert on May 27, 1988. After Nadiradze's death in 1988 Boris N. Lapygin continued his work on the Topol missile. [1]

Design

The RT-2PM ICBM was designed to be road mobile and is mounted on a heavy truck (MAZ-7310 or MAZ-7917).

The RT-2 is a road mobile 3-stage, single warhead ICBM. Its 21.5 meter length and 1.7 meter diameter are approximately the same size and shape as the U.S. Minuteman ICBM. It has a throw-weight of 1000 kg and carries a single warhead with a yield of 800 kt [7] and accuracy (CEP) of 200m. Its road mobile capability gave the RT-2PM Topol an extremely high probability of survival.[ citation needed ] It can fire from field deployment sites or through sliding roof garage bases. The RT-2PM Topol joined operational Soviet SRF regiments in 1985. A total area of approximately 190,000 square kilometers could be required to deploy a force consisting of 500 road-mobile Topol ICBMs. Mobile units require a much higher number of personnel for maintenance and operation than fixed systems. Consequently, the RT-2PM Topol was significantly more costly to maintain and operate than silo launched systems.

All three stages are made of composite materials. During first stage operation the flight control is implemented through four aerodynamic and four jet vanes. Four similar trellised aerodynamic surfaces serve for stabilization. During the second and third stage of flight gas is injected into the diverging part of the nozzle for flight control.

Launch-Assisting Support vehicle of Topol at the Saint-Petersburg Artillery Museum Topol LAS.JPG
Launch-Assisting Support vehicle of Topol at the Saint-Petersburg Artillery Museum
Troposphere Relay Station vehicle of Topol at the Saint-Petersburg Artillery Museum Topol TRS.JPG
Troposphere Relay Station vehicle of Topol at the Saint-Petersburg Artillery Museum

The missile is deployed in a Transporter Erector Launcher (TEL) canister mounted on cross-country 7-axle chassis on a mobile launch vehicle. The chassis incorporates jacks, gas and hydraulic drives and cylinders, with a power of several hundred tons, for jacking and leveling of the launcher, speeding up (combat) and slowing down (maintaining) elevation of the container with the missile in the vertical position. The TEL is accompanied by a Mobile command post, carrying support facilities mounted on cross-country 4-axle chassis with unified vans. The complex is equipped with an onboard inertial navigation system which gives the TEL group the capability to conduct the launch independently from its field deployment sites. This topo-geodesic support and navigation subsystem, created by the "Signal" Research Institute, provides a quick and highly precise tie-in of the launcher in a field position and enables its crew to carry out missile launches from any combat patrol route point. The launch can also be carried out at regimental bases from the aforementioned garrison garage.

Operational history

RT-2PM missile scheme RT-2PM.PNG
RT-2PM missile scheme

At the time of the signing of the START I Treaty in 1991 the Soviet Union had deployed some 288 Topol missiles. Deployment continued, and at the end of 1996 a total of 360 Topol missiles were deployed.

The Topol missile was deployed at previously developed deployment sites. After the INF Treaty was signed in 1987 several SS-20 deployment sites were adapted to launch the Topol missiles. The United States expressed specific concerns during the INF treaty negotiations. When the SS-25 missile system was deployed in the field, with its missile inside the canister and mounted on the launcher, the US contended that the canister might conceal an RSD-10 Pioneer missile. This was of concern because unlike the single warhead of the RT-2PM Topol, the RSD-10 carried up to 3 warheads. A resolution was reached after the Soviet Union agreed to allow inspection parties to use radiation detection systems to measure fast neutron intensity flux emanating from the launch canister. A launch canister with a missile inside containing a single warhead, such as the RT-2PM Topol, emitted a different pattern of fast neutrons than did one with a missile having three warheads, such as the RSD-10.

Provisions of the SALT II agreement prohibited the deployment of more than one new missile (which became RT-23UTTh), it was officially declared by the Soviet Union that the RT-2PM Topol was developed to upgrade the silo based RT-2. The US government disputed this view, contending that the missile was clearly more than 5% larger and had twice the throw-weight as the RT-2 and therefore constituted a new missile system. Marshal Nikolai Ogarkov, Soviet Chief of General Staff cancelled the September 1, 1983 test flight of the RT-2PM Topol which was to be launched from Plesetsk (the launch site in northwest Russia used for test firing of solid fuel propellant ICBMs)- 24 minutes later to land in the Klyuchi target area on the Kamchatka Peninsula. The night of the scheduled launch was the night that Korean Air Lines Flight 007 was shot down after accidentally intruding Soviet airspace over Kamchatka.

An RT-2PM Topol with two MIRVs may have been tested in 1991, and the missile was tested at least once with four MIRV warheads, but there has apparently been no further development of a multiple warhead version. This became a point of contention during the conclusion of the 1991 START negotiations, at which time the US pressed for a definition of "downloading" (removing warheads from missiles) that would complicate any Soviet attempt suddenly to deploy multiple warheads on the RT-2PM Topol.

Russia plans to reequip approximately 400 silos where obsolete UR-100, RT-2 and MR-UR-100 missiles are located. Under the START II Treaty, which never had and most likely will never have a binding effect, Russia would have been able to place 90 single-warhead solid fuel missiles in reequipped R-36 silos. In order to guard against a break-out scenario involving the rapid reconversion of R-36 silos on-site inspection became a very important aspect of START II verification.

Post-Soviet period

The breakup of the Soviet Union had a significant impact on the Topol program. The dispersed manufacturing of ICBM components seriously complicated researching and building new missile systems. For example, the Minsk Wheeled Truck-Tractor Manufacturing Plant in Belarus manufactured the missiles' transporter launchers, and some 90% of the components of the guidance system were manufactured in Ukraine.

In Belarus, as of December 1995, 63 RT-2PM Topol ICBMs originally deployed there had been returned to Russia. As of December 1995, Belarus had two operational mobile RT-2PM Topol regiments remaining on its territory, with a total of 18 nuclear warheads. In July 1992, Belarus signed an agreement with Russia placing the regiments under exclusive Russian control. In September 1993, Moscow and Minsk signed an agreement requiring the return of these nuclear missiles and all related missile support equipment to Russia by the end of 1996. A total of 81 RT-2PM Topol ICBMs and associated warheads were returned to Russia from Belarus.

By the late 1990s the lack of resources and qualified personnel forced the Strategic Rocket Forces to cut back operations considerably, with no more than one or two regiments of the mobile RT-2PM Topol missiles dispersed in the field. The remaining 40 or so regiments, each with nine single-warhead missiles, remain in garrison.

In February 2001, in a special test of operational readiness, the Strategic Rocket Forces successfully launched a silo-based Topol ICBM at a target in the Kura Test Range in Kamchatka. The Topol missile, the oldest of its type still in the Russian arsenal, was said to have performed flawlessly despite having outlived by 150 percent its operational period of service.

Topol TEL in Military Historical Museum of Artillery, Engineers and Signal Corps Topol TEL.JPG
Topol TEL in Military Historical Museum of Artillery, Engineers and Signal Corps

Recent history

On October 18, 2007, another successful test launch was conducted. One Topol from a mobile launcher at Plesetsk test site reached its target on Kamchatka. As the Strategic Rocket Forces representative reported, it allowed for the extension of Topol's service life to 21 years. [8]

Another test of the RT-2PM Topol was carried out on Thursday, August 28, 2008. The launch was said to be specially tasked to test the missile's capability to avoid ground-based detection systems. [9] The test included the use of a new warhead, designed to penetrate missile defense systems. [10]

Another test was conducted on October 12, 2008 when a Topol was launched from the Plesetsk test site in northern Russia. The missile, with a dummy warhead, hit a target at the Kura Test Range on the Kamchatka Peninsula. Russian president Dmitry Medvedev observed the test on site. [11]

Tests conducted on 28 October 2011 and 3 November 2011, confirmed service life extension to 23 years (to 2019). [12] [13] More tests for extension to 25 years were announced, and on October 30, 2012, an RS-12M Topol Intercontinental Ballistic Missile was launched from the Plesetsk site in northern Russia [14]

On 4 March 2014, Russia test fired an RS-12M Topol Intercontinental Ballistic Missile from Kapustin Yar testing ground near the Caspian Sea, successfully hitting its target at a test ground in Kazakhstan. Although the United States had received advanced notice about the test it had coincided with the crisis in the Ukraine. [15]

On 20 March 2014, Russia test fired an RS-12M Topol Intercontinental Ballistic Missile from Kapustin Yar testing ground.

September 11, 2016 - The Russian Strategic Missile Forces have conducted a successful test launch of a RS-12M Topol intercontinental ballistic missile, the Defense Ministry said Friday. According to the ministry, the missile, launched from the Plesetsk space center in northwestern Russia has hit a designated target on the Kamchatka peninsula "with high precision." The RS-12M Topol (SS-25 Sickle) is a single-warhead intercontinental ballistic missile, which entered service in 1985. It has a maximum range of 10,000 km (6,125 miles) and can carry a nuclear warhead with a yield of up to 550 kilotons. [16]

On 28 November 2019 Russian Strategic Missile Troops performed a missile test with a suborbital launch of a RS-12M Topol missile from Kapustin Yar. The test was successful.

The Topol will eventually be replaced by the road-mobile version of the Topol-M missile.

US Air Force National Air and Space Intelligence Center estimating that as of June 2017 about 100 launchers were operationally deployed. [17]

Variants

Operators

Topol missile launch Pusk rakety kompleksa Topol'.jpg
Topol missile launch
Flag of Russia.svg  Russia

The Strategic Missile Troops are the only operator of the RT-2PM Topol. As of March 2020, [18] 36 road-mobile RT-2PM Topol missiles are deployed with:

Former operators

Flag of the Soviet Union.svg  Soviet Union

See also

Related Research Articles

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References

  1. 1 2 "Topol". Archived from the original on 30 October 2013. Retrieved 23 December 2014.
  2. John Pike. "RT-2PM - SS-25 SICKLE" . Retrieved 23 December 2014.
  3. https://missilethreat.csis.org/missile/ss-25/#en-347-4
  4. http://www.thedrive.com/the-war-zone/17197/russia-fires-topol-ballistic-missile-to-test-new-tech-to-defeat-missile-defense-systems
  5. "RS-12M Topol (SS-25 'Sickle'/RT-2PM)", Jane's Strategic Weapon Systems, 2008-09-10, archived from the original on 2013-01-03
  6. https://fas.org/blogs/security/2014/05/russianmodernization/
  7. Nuclear Notebook: U.S. and Soviet/Russian intercontinental ballistic missiles, 1959–2008
  8. "Launch of Topol extends its service life" . Retrieved 23 December 2014.
  9. Russia long-range missile test a success [ dead link ]
  10. "Russia's Topol ICBM hits target with new warhead in test launch" . Retrieved 23 December 2014.
  11. "Russia's Medvedev observes test launch of Topol ICBM" . Retrieved 23 December 2014.
  12. "Topol might stay in service until 2019" . Retrieved 23 December 2014.
  13. "Launch of Topol to confirm missile life extension" . Retrieved 23 December 2014.
  14. Gentilviso, Chris (20 October 2012). "Putin Leads Russia's Biggest Nuclear Tests In Decades". Huffington Post.
  15. Russia test-fires Intercontinental Ballistic Missile, report says. Fox News, 4 March 2014
  16. Interfax, 20 March 2014
  17. http://www.nasic.af.mil/LinkClick.aspx?fileticket=F2VLcKSmCTE%3d&portalid=19
  18. Kristensen, Hans M.; Korda, Matt (9 March 2020). "Russian nuclear forces, 2020". Bulletin of the Atomic Scientists. 76 (2): 73–84. doi: 10.1080/00963402.2020.1728985 .