Intercontinental ballistic missile
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An intercontinental ballistic missile (ICBM) is a guided ballistic missile with a minimum range of 5,500 kilometres (3,400 mi)[1] primarily designed for nuclear weapons delivery (delivering one or more thermonuclear warheads). Similarly, conventional, chemical, and biological weapons can also be delivered with varying effectiveness, but have never been deployed on ICBMs. Most modern designs support multiple independently targetable reentry vehicles (MIRVs), allowing a single missile to carry several warheads, each of which can strike a different target.
Early ICBMs had limited precision (circular error probable) that allowed them to be used only against the largest targets such as cities. They were seen as a "safe" basing option, one that would keep the deterrent force close to home where it would be difficult to attack. Attacks against (especially hardened) military targets, if desired, still demanded the use of a more precise manned bomber. This is due to the inverse-square law, which predicts that the amount of energy dispersed from a single point release of energy (such as a thermonuclear blast) dissipates by the inverse of the square of the distance from the single point of release. The result is that the power of a nuclear explosion to rupture hardened structures is greatly decreased by the distance from the impact point of the nuclear weapon. So a near-direct hit is generally necessary, as only diminishing returns are gained by increasing bomb yield.[citation needed]
Second- and third-generation designs (e.g., the LGM-118 Peacekeeper) dramatically improved accuracy to the point where even the smallest point targets can be successfully attacked.
ICBMs are differentiated by having greater range and speed than other ballistic missiles: intermediate-range ballistic missiles (IRBMs), medium-range ballistic missiles (MRBMs), and short-range ballistic missiles (SRBMs). Short and medium-range ballistic missiles are known collectively as theatre ballistic missiles.
Contents
History[edit]
World War II[edit]
The development of the world's first practical design for an ICBM, A9/10, intended for use in bombing New York and other American cities, was undertaken in Nazi Germany by the team of Wernher von Braun under Projekt Amerika. The ICBM A9/A10 rocket initially was intended to be guided by radio, but was changed to be a piloted craft after the failure of Operation Elster. The second stage of the A9/A10 rocket was tested a few times in January and February 1945. The progenitor of the A9/A10 was the German V-2 rocket, also designed by von Braun and widely used at the end of World War II to bomb British and Belgian cities. All of these rockets used liquid propellants. Following the war, von Braun and other leading German scientists were relocated to the United States to work directly for the US Army through Operation Paperclip, developing the IRBMs, ICBMs, and launchers.
This technology was also predicted by US Army General Hap Arnold, who wrote in 1943:
Someday, not too distant, there can come streaking out of somewhere – we won't be able to hear it, it will come so fast – some kind of gadget with an explosive so powerful that one projectile will be able to wipe out completely this city of Washington.[2][3]
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Cold War[edit]
In the immediate post-war era, the US and USSR both started rocket research programs based on the German wartime designs, especially the V-2. In the US, each branch of the military started its own programs, leading to considerable duplication of effort. In the USSR, rocket research was centrally organized, although several teams worked on different designs. Early designs from both countries were short-range missiles, like the V-2, but improvements quickly followed.
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In the USSR early development was focused on missiles able to attack European targets. This changed in 1953 when Sergei Korolyov was directed to start development of a true ICBM able to deliver newly developed hydrogen bombs. Given steady funding throughout, the R-7 developed with some speed. The first launch took place on 15 May 1957 and led to an unintended crash 400 km (250 mi) from the site. The first successful test followed on 21 August 1957; the R-7 flew over 6,000 km (3,700 mi) and became the world's first ICBM.[4] The first strategic-missile unit became operational on 9 February 1959 at Plesetsk in north-west Russia.[5]
It was the same R-7 launch vehicle that placed the first artificial satellite in space, Sputnik, on 4 October 1957. The first human spaceflight in history was accomplished on a derivative of R-7, Vostok, on 12 April 1961, by Soviet cosmonaut Yuri Gagarin. A heavily modernized version of the R-7 is still used as the launch vehicle for the Soviet/Russian Soyuz spacecraft, marking more than 50 years of operational history of Sergei Korolyov's original rocket design.
The U.S. initiated ICBM research in 1946 with the RTV-A-2 Hiroc project. This was a three-stage effort with the ICBM development not starting until the third stage. However, funding was cut after only three partially successful launches in 1948 of the second stage design, used to test variations on the V-2 design. With overwhelming air superiority and truly intercontinental bombers, the newly forming US Air Force did not take the problem of ICBM development seriously. Things changed in 1953 with the Soviet testing of their first thermonuclear weapon, but it was not until 1954 that the Atlas missile program was given the highest national priority. The Atlas A first flew on 11 June 1957; the flight lasted only about 24 seconds before the rocket blew up. The first successful flight of an Atlas missile to full range occurred 28 November 1958.[6] The first armed version of the Atlas, the Atlas D, was declared operational in January 1959 at Vandenberg, although it had not yet flown. The first test flight was carried out on 9 July 1959,[7][8] and the missile was accepted for service on 1 September.
The R-7 and Atlas each required a large launch facility, making them vulnerable to attack, and could not be kept in a ready state. Failure rates were very high throughout the early years of ICBM technology. Human spaceflight programs (Vostok, Mercury, Voskhod, Gemini, etc.) served as a highly visible means of demonstrating confidence in reliability, with successes translating directly to national defense implications. The US was well behind the Soviet Union in the Space Race, so U.S. President John F. Kennedy increased the stakes with the Apollo program, which used Saturn rocket technology that had been funded by President Dwight D. Eisenhower.
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These early ICBMs also formed the basis of many space launch systems. Examples include R-7, Atlas, Redstone, Titan, and Proton, which was derived from the earlier ICBMs but never deployed as an ICBM. The Eisenhower administration supported the development of solid-fueled missiles such as the LGM-30 Minuteman, Polaris and Skybolt. Modern ICBMs tend to be smaller than their ancestors, due to increased accuracy and smaller and lighter warheads, and use solid fuels, making them less useful as orbital launch vehicles.
The Western view of the deployment of these systems was governed by the strategic theory of Mutual Assured Destruction. In the 1950s and 1960s, development began on Anti-Ballistic Missile systems by both the U.S. and USSR; these systems were restricted by the 1972 ABM treaty. The first successful ABM test were conducted by the USSR in 1961, that later deployed a fully operating system defending Moscow in the 1970s (see Moscow ABM system).
The 1972 SALT treaty froze the number of ICBM launchers of both the U.S. and the USSR at existing levels, and allowed new submarine-based SLBM launchers only if an equal number of land-based ICBM launchers were dismantled. Subsequent talks, called SALT II, were held from 1972 to 1979 and actually reduced the number of nuclear warheads held by the U.S. and USSR. SALT II was never ratified by the United States Senate, but its terms were nevertheless honored by both sides until 1986, when the Reagan administration "withdrew" after accusing the USSR of violating the pact.
In the 1980s, President Ronald Reagan launched the Strategic Defense Initiative as well as the MX and Midgetman ICBM programs.
China developed a minimal independent nuclear deterrent entering its own cold war after an ideological split with the Soviet Union beginning in the early 1960s. After first testing a domestic built nuclear weapon in 1964, it went on to develop various warheads and missiles. Beginning in the early 1970s, the liquid fuelled DF-5 ICBM was developed and used as a satellite launch vehicle in 1975. The DF-5, with range of 10,000 to 12,000 km (6,200 to 7,500 mi) long enough to strike the western US and the USSR, was silo deployed with the first pair in service by 1981 with possibly twenty missiles in service by the late 1990s.[9] China also deployed the JL-1 Medium-range ballistic missile with a reach of 1,700 kilometres (1,100 mi) aboard the ultimately unsuccessful type 92 submarine.[10]
Post-Cold War[edit]
In 1991, the United States and the Soviet Union agreed in the START I treaty to reduce their deployed ICBMs and attributed warheads.
As of 2016[update], all five of the nations with permanent seats on the United Nations Security Council have operational long-range ballistic missile systems; Russia, the United States, and China also have land-based ICBMs (the US missiles are silo-based, while China and Russia have both silo and road-mobile (DF-31, RT-2PM2 Topol-M) missiles).
Israel is believed to have deployed a road mobile nuclear ICBM, the Jericho III, which entered service in 2008; an upgraded version is in development.[11][12]
India successfully test fired Agni V, with a strike range of more than 5,000 km (3,100 mi) on 19 April 2012, claiming entry into the ICBM club.[13] The missile's actual range is speculated by foreign researchers to be up to 8,000 km (5,000 mi) with India having downplayed its capabilities to avoid causing concern to other countries.[14]
It is speculated by some intelligence agencies that North Korea is developing an ICBM.[15] North Korea successfully put a satellite into space on 12 December 2012 using the 32-metre-tall (105 ft) Unha-3 rocket. The United States claimed that the launch was in fact a way to test an ICBM.[16] (See Timeline of first orbital launches by country.)
In July 2014, China announced the development of its newest generation of ICBM, the Dongfeng-41 (DF-41), which has a range of 12,000 kilometres (7,500 miles), capable of reaching the United States, and which analysts believe is capable of being outfitted with MIRV technology.[17]
Most countries in the early stages of developing ICBMs have used liquid propellants, with the known exceptions being the Indian Agni-V, the planned but cancelled[18] South African RSA-4 ICBM, and the now in service Israeli Jericho III.[19]
Flight phases[edit]
The following flight phases can be distinguished:
- boost phase: 3 to 5 minutes; it is shorter for a solid-fuel rocket than for a liquid-propellant rocket; depending on the trajectory chosen, typical burnout speed is 4 km/s (2.5 mi/s), up to 7.8 km/s (4.8 mi/s); altitude at the end of this phase is typically 150 to 400 km (93 to 249 mi).
- midcourse phase: approx. 25 minutes—sub-orbital spaceflight with a flightpath being a part of an ellipse with a vertical major axis; the apogee (halfway through the midcourse phase) is at an altitude of approximately 1,200 km (750 mi); the semi-major axis is between 3,186 and 6,372 km (1,980 and 3,959 mi); the projection of the flightpath on the Earth's surface is close to a great circle, slightly displaced due to earth rotation during the time of flight; the missile may release several independent warheads and penetration aids, such as metallic-coated balloons, aluminum chaff, and full-scale warhead decoys.
- reentry/terminal phase (starting at an altitude of 100 km, 62 mi): 2 minutes – impact is at a speed of up to 7 km/s (4.3 mi/s) (for early ICBMs less than 1 km/s (0.62 mi/s)); see also maneuverable reentry vehicle.
ICBMs usually use the trajectory which optimizes range for a given amount of payload (the minimum-energy trajectory); an alternative is a depressed trajectory, which allows less payload, shorter flight time, and has a much lower apogee.[20]
Modern ICBMs[edit]
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Modern ICBMs typically carry multiple independently targetable reentry vehicles (MIRVs), each of which carries a separate nuclear warhead, allowing a single missile to hit multiple targets. MIRV was an outgrowth of the rapidly shrinking size and weight of modern warheads and the Strategic Arms Limitation Treaties which imposed limitations on the number of launch vehicles (SALT I and SALT II). It has also proved to be an "easy answer" to proposed deployments of ABM systems—it is far less expensive to add more warheads to an existing missile system than to build an ABM system capable of shooting down the additional warheads; hence, most ABM system proposals have been judged to be impractical. The first operational ABM systems were deployed in the U.S. during the 1970s. Safeguard ABM facility was located in North Dakota and was operational from 1975 to 1976. The USSR deployed its ABM-1 Galosh system around Moscow in the 1970s, which remains in service. Israel deployed a national ABM system based on the Arrow missile in 1998,[21] but it is mainly designed to intercept shorter-ranged theater ballistic missiles, not ICBMs. The Alaska-based United States national missile defense system attained initial operational capability in 2004.[22]
ICBMs can be deployed from multiple platforms:
- in missile silos, which offer some protection from military attack (including, the designers hope, some protection from a nuclear first strike)
- on submarines: submarine-launched ballistic missiles (SLBMs); most or all SLBMs have the long range of ICBMs (as opposed to IRBMs)
- on heavy trucks; this applies to one version of the Topol which may be deployed from a self-propelled mobile launcher, capable of moving through roadless terrain, and launching a missile from any point along its route
- mobile launchers on rails; this applies, for example, to РТ-23УТТХ "Молодец" (RT-23UTTH "Molodets"—SS-24 "Sсаlреl")
The last three kinds are mobile and therefore hard to find. During storage, one of the most important features of the missile is its serviceability. One of the key features of the first computer-controlled ICBM, the Minuteman missile, was that it could quickly and easily use its computer to test itself.
In flight, a booster pushes the warhead and then falls away. Most modern boosters are solid-fueled rocket motors, which can be stored easily for long periods of time. Early missiles used liquid-fueled rocket motors. Many liquid-fueled ICBMs could not be kept fuelled all the time as the cryogenic fuel liquid oxygen boiled off and caused ice formation, and therefore fueling the rocket was necessary before launch. This procedure was a source of significant operational delay, and might allow the missiles to be destroyed by enemy counterparts before they could be used. To resolve this problem the United Kingdom invented the missile silo that protected the missile from a first strike and also hid fuelling operations underground.
Once the booster falls away, the warhead continues on an unpowered ballistic trajectory, much like an artillery shell or cannonball. The warhead is encased in a cone-shaped reentry vehicle and is difficult to detect in this phase of flight as there is no rocket exhaust or other emissions to mark its position to defenders. The high speeds of the warheads make them difficult to intercept and allow for little warning, striking targets many thousands of kilometers away from the launch site (and due to the possible locations of the submarines: anywhere in the world) within approximately 30 minutes.
Many authorities say that missiles also release aluminized balloons, electronic noise-makers, and other items intended to confuse interception devices and radars.
As the nuclear warhead reenters the Earth's atmosphere its high speed causes compression of the air, leading to a dramatic rise in temperature which would destroy it if it were not shielded in some way. As a result, warhead components are contained within an aluminium honeycomb substructure, sheathed in a pyrolytic carbon-epoxy synthetic resin composite material heat shield. Warheads are also often radiation-hardened (to protect against nuclear-tipped ABMs or the nearby detonation of friendly warheads), one neutron-resistant material developed for this purpose in the UK is three-dimensional quartz phenolic.
Circular error probable is crucial, because halving the circular error probable decreases the needed warhead energy by a factor of four. Accuracy is limited by the accuracy of the navigation system and the available geodetic information.
Strategic missile systems are thought to use custom integrated circuits designed to calculate navigational differential equations thousands to millions of FLOPS in order to reduce navigational errors caused by calculation alone. These circuits are usually a network of binary addition circuits that continually recalculate the missile's position. The inputs to the navigation circuit are set by a general purpose computer according to a navigational input schedule loaded into the missile before launch.
One particular weapon developed by the Soviet Union - the Fractional Orbital Bombardment System - had a partial orbital trajectory, and unlike most ICBMs its target could not be deduced from its orbital flight path. It was decommissioned in compliance with arms control agreements, which address the maximum range of ICBMs and prohibit orbital or fractional-orbital weapons. However, according to reports, Russia is working on the new Sarmat ICBM which leverages Fractional Orbital Bombardment concepts to use a Southern polar approach instead of flying over the Northern polar regions. Using this approach, it is theorized, avoids the US missile defense batteries in California and Alaska.
Specific ICBMs[edit]
Land-based ICBMs[edit]
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- Minuteman III (13,000km) (United States)
- Agni-V (5,000 to 8,000 km) (India)
- RS-28 Sarmat heavy ICBM (10,000 km) (Russia)
- R-36M2 (SS-18) (10,200–16,000 km) (Soviet Union, Russia)
- UR-100N (SS-19) (10,000+ km) (Soviet Union, Russia)
- RT-2PM "Topol" (SS-25) (10,000+ km) (Soviet Union, Russia)
- RT-2UTTH "Topol M" (SS-27) (11,000 km) (Russia)
- RS-24 "Yars" (SS-29) (11,000 km) (Russia)
- RS-26 Rubezh (6,000-12,600 km) (Russia)
- DF-4 (~5,500-7,000 km) (China)
- DF-31 (7,200-11,200 km) (China)
- DF-5 (12,000-15,000 km) (China)
- DF-41 (12,000-15,000 km) (China)
- Jericho 3 (6,500-11,500 km) (Israel)
- KN-14 (allegedly 8,000-12,000 km) (North Korea)
Russia, the United States, China and India are the only countries currently known to possess land-based ICBMs, Israel has also tested ICBMs but is not open about actual deployment.[23][24]
The United States currently operates 450 ICBMs in three USAF bases. The only model deployed is LGM-30G Minuteman-III.
All previous USAF Minuteman II missiles have been destroyed in accordance with START, and their launch silos have been sealed or sold to the public. To comply with the START II most U.S. multiple independently targetable reentry vehicles, or MIRVs, have been eliminated and replaced with single warhead missiles. The powerful MIRV-capable Peacekeeper missiles were phased out in 2005.[25] However, since the abandonment of the START II treaty, the U.S. is said to be considering retaining 800 warheads on an existing 450 missiles.[26]
The Russian Strategic Rocket Forces have 369 ICBMs able to deliver 1,247 nuclear warheads, 58 silo-based R-36M2 (SS-18), 70 silo-based UR-100N (SS-19), 171 mobile RT-2PM "Topol" (SS-25), 52 silo-based RT-2UTTH "Topol M" (SS-27), 18 mobile RT-2UTTH "Topol M" (SS-27), 6 (15 in December 2011[27]) mobile RS-24 "Yars" (SS-29) (Future replacement for R-36 & UR-100N missiles)
China has developed several long range ICBMs, like the DF-31. The Dongfeng 5 or DF-5 is a 3-stage liquid fuel ICBM and has an estimated range of 13,000 kilometers. The DF-5 had its first flight in 1971 and was in operational service 10 years later. One of the downsides of the missile was that it took between 30 and 60 minutes to fuel. The Dong Feng 31 (a.k.a. CSS-10) is a medium-range, three-stage, solid-propellant intercontinental ballistic missile, and is a land-based variant of the submarine-launched JL-2.
The DF-41 or CSS-X-10 can carry up to 10 nuclear warheads, which are MIRVs and has a range of approximately 12,000–14,000 km (7,500–8,700 mi).[28][29][30][31] The DF-41 deployed in underground Xinjiang, Qinghai,Gansu and Inner Mongolia area. The mysterious underground subway ICBM carrier systems they called "Underground Great Wall Project[32]".
Israel is believed to have deployed a road mobile nuclear ICBM, the Jericho III, which entered service in 2008. It is possible for the missile to be equipped with a single 750 kg (1,650 lb) nuclear warhead or up to three MIRV warheads. It is believed to be based on the Shavit space launch vehicle and is estimated to have a range of 4,800 to 11,500 km (3,000 to 7,100 mi).[11] In November 2011 Israel tested an ICBM believed to be an upgraded version of the Jericho III.[12]
India has a series of ballistic missiles called Agni. On 19 April 2012, India successfully test fired its first Agni-V, a three-stage solid fueled missile, with a strike range of more than 7,500 km (4,700 mi). The missile was test-fired for the second time on 15 September 2013.[13] On 31 January 2015, India conducted a third successful test flight of the Agni-V from the Wheeler Island facility. The test used a canisterised version of the missile, mounted over a Tatra truck.[33]
Submarine-launched[edit]
All current designs of submarine launched ballistic missiles have intercontinental range except the current generation of short range Indian SLBMs.[34] Current operators of such missiles are the United States, Russia, United Kingdom, France, India and the People's Republic of China.[35]
Missile defense[edit]
An anti-ballistic missile is a missile which can be deployed to counter an incoming nuclear or non-nuclear ICBM. ICBMs can be intercepted in three regions of their trajectory: boost phase, mid-course phase or terminal phase. Currently the US, Russia, France, India and Israel have developed anti-ballistic missile systems, of which the Russian A-135 anti-ballistic missile system, US Ground-Based Midcourse Defense, Systems have the capability to intercept ICBMs carrying nuclear, chemical, biological, or conventional warheads.
See also[edit]
- Anti-Ballistic Missile Treaty
- Atmospheric reentry
- Dense Pack
- Emergency Action Message
- General Bernard Adolph Schriever
- Heavy ICBM
- High-alert nuclear weapon
- ICBM address
- List of ICBMs
- List of states with nuclear weapons
- Nuclear disarmament
- Nuclear navy
- Nuclear warfare
- Nuclear weapon
- SLBM
- Submarine
- Throw-weight
References[edit]
- ^ "Intercontinental Ballistic Missiles". Special Weapons Primer. Federation of American Scientists. Retrieved 2012-12-14.
- ^ Dolman, Everett C.; Cooper, Henry F., Jr. "19: Increasing the Military Uses of Space". Toward a Theory of Space Power. NDU Press. Retrieved 2012-04-19.
- ^ Correll, John T. (July 2005). "How the Air Force got the ICBM". Airforce Magazine. Retrieved 2012-04-19.
- ^ Wade, Mark. "R-7". Encyclopedia Astronautica. Retrieved 2011-07-04.
- ^ "This Week in EUCOM History: February 6–12, 1959". EUCOM. 6 February 2012. Retrieved 2012-02-08.
- ^ "Atlas". The Exploration of Space. Century of Flight. Retrieved 2012-12-14.
- ^ "Atlas D". Missile Threat. Archived from the original on 10 February 2012. Retrieved 2012-04-19.
- ^ "Atlas". Encyclopedia Astronautica. Astronautix. Retrieved 2012-04-19.
- ^ "DF-5". Weapons of Mass Destruction / WMD Around the World. Federation of American Scientists. Retrieved 2012-12-14.
- ^ "Type 92 Xia". Weapons of Mass Destruction Around the World. Federation of American Scientists. Retrieved 2012-12-14.
- ^ a b Feickert, Andrew (5 March 2004). Missile Survey: Ballistic and Cruise Missiles of Foreign Countries (PDF). Congressional Research Service (Report). Library of Congress. RL30427. Retrieved 2010-06-21.
- ^ a b Pfeffer, Anshel (2 November 2011). "IDF test-fires ballistic missile in central Israel". Haaretz. Reuters. Retrieved 2011-11-03.
- ^ a b Mallikarjun, Y; Subramanian, TS (19 April 2012). "Agni-V successfully test-fired". The Hindu. Retrieved 2012-04-19.
- ^ "India downplayed Agni-V's capacity: Chinese experts". Beijing, China: The Hindustan Times. Indo-Asian News Service. April 20, 2012. Retrieved 13 July 2014.
- ^ "North Korea's Taepodong and Unha Missiles". Programs. Federation of American Scientists. Retrieved 2012-04-19.
- ^ "North Korea says it successfully launched satellite into orbit". NBC News. 12 December 2012. Retrieved 2013-04-13.
- ^ "China 'confirms new generation long range missiles'". Telegraph.co.uk. 1 August 2014. Retrieved 1 April 2015.
- ^ "South Africa". astronautix.com. Retrieved 2016-07-08.
- ^ "Jericho". Encyclopedia Astronautica. Astronautix. Retrieved 2012-12-14.
- ^ Science & Global Security, 1992, Volume 3, pp.101-159 Depressed Trajectory SLBMs: A Technical Evaluation and Arms Control Possibilities [1]
- ^ "Israeli Arrow ABM System is Operational as War Butts Darken". Israel High-Tech & Investment Report. November 2002. Retrieved 2012-04-19.
- ^ "Fort Greely". Systems. Missile Threat. 8 December 1998. Archived from the original on 30 January 2012. Retrieved 2012-04-19.
- ^ "ICBM". Encyclopedia Britannica. Retrieved 2012-04-19.
- ^ India test launches Agni-V long-range missile, UK: BBC News, April 19, 2012, retrieved 2016-03-11.
- ^ Edwards, Joshua S. (20 September 2005). "Peacekeeper missile mission ends during ceremony". US: Air force. Archived from the original on 2012-10-18. Retrieved 2016-04-28.
- ^ Norris, Robert S; Kristensen, Hans (January–February 2009). "Nuclear Notebook: U.S. and Soviet/Russian intercontinental ballistic missiles, 1959–2008" (PDF). Bulletin of the Atomic Scientists. doi:10.2968/065001008. Retrieved 2012-12-14.
- ^ "Second RS-24 regiment begins combat duty". Russian strategic nuclear forces. Russian forces. Retrieved 2012-12-14.
- ^ "Five types of missiles to debut on National Day". Xinhua. 2 September 2009. Retrieved 2010-04-06.
- ^ "DF-41, CSS-X-10". Weapons of Mass Destruction. Global security. Retrieved 6 April 2010.
- ^ "DF-41 (CSS-X-10; China)". Jane's Strategic Weapon Systems. Jane's Information Group. 2 July 2009. Retrieved 2010-04-06.
- ^ "DF-41 (CSS-X-10)". Missile Threat. Archived from the original on 8 April 2016. Retrieved 2015-01-26.
- ^ Zhang, Hui. "China's underground Great Wall: subterranean ballistic missile". Power & Policy. Power and Policy, Belfer Center for Science and International Affairs, Kennedy School of Government, Harvard University. Retrieved 14 June 2015.
- ^ "Agni 5, India's Longest Range Ballistic Missile, Successfully Test-Fired". NDTV.com. Retrieved 2016-02-08.
- ^ "Going ballistic: India looks to join elite missile club". The Times of India. Retrieved 1 April 2015.
- ^ "Type 094 (Jin Class) Nuclear-Powered Missile Submarine". Sino defence. Retrieved 2012-12-14.
Further reading[edit]
- «Korolev: Facts and myths» - J. K. Golovanov, M: Nauka, 1994, - ISBN 5-02-000822-2
- "Rockets and people" – B. E. Chertok, M: "mechanical engineering", 1999. ISBN 5-217-02942-0 (Russian);
- "Testing of rocket and space technology - the business of my life" Events and facts - A.I. Ostashev, Korolyov, 2001.[2]
- "Nesterenko" series Lives of great people - Authors: Gregory Sukhina A., Ivkin, Vladimir Ivanovich, publishing house "Young guard" in 2015, ISBN 978-5-235-03801-1
External links[edit]
- Missile Defense Agency, US: Department of Defense.
- Estimated Strategic Nuclear Weapons Inventories, Rice, September 2004.
- The 10 longest range Intercontinental Ballistic Missiles.
- Intercontinental Ballistic and Cruise Missiles (guide), US: FAS
- Hawes, Kingdon R. "King", Lt Col, USAF (Ret.), A Tale of Two Airplanes, RC135.
- ICBM Modernization: Approaches to Basing Options and Interoperable Warhead Designs Need Better Planning and Synchronization: Report to Congressional Committees Government Accountability Office