DF-4

DF-4/CSS-3
Type ICBM
Place of origin People's Republic of China
Service history
In service 1975/1976[1][2]–present
Used by PRC
Production history
Manufacturer Factory 211 (Capital Astronautics Co.)
Unit cost ?
Specifications
Weight 82,000 kg
Length 28.05 m
Diameter 2.25 m
Warhead One,[1] or three (DF-4A)[3][4]
Blast yield 3.3 Mt[1]
Engine Liquid fueled
Operational
range
 5,500 km[1]-7,000 km[5][6]
Speed ?
Guidance
system
 Astro-inertial guidance

The Dong Feng 4 (Chinese: 东风4, meaning "East Wind") or DF-4 (also known as the CSS-3) is a two-stage Chinese Intercontinental ballistic missile[7] with liquid fuel (Nitric acid/Unsymmetrical dimethylhydrazine). It was thought to be deployed in limited numbers in underground silos beginning in the 1970s and early 1980s. The Dong Feng 4 has a takeoff thrust of 1,224.00 kN, a takeoff weight of 82000 kg, a diameter of 2.25 m, a length of 28.05 m and a fin span of 2.74 m. The range of the Dong Feng 4, which is equipped with a 2,190 kg nuclear warhead with 3.3 Megaton yield, with a nominal range of 5,500 km. This gives it sufficient range to strike targets as far away as Russia, India, and American bases in the Pacific.[8] The missile uses an inertial guidance system, resulting in a large CEP of 1,500 meters. As of 2017, 10-15 launchers are deployed.[9]

History

Range of various Chinese missiles (2007); DF-4 range in light blue.

The decision to develop the DF-4 was made in 1965[10] in response to the U.S. ballistic missile submarine patrols that began operating out of Guam. The missile's designer has been variously identified as Ren Xinmin or Tu Shou'e [屠守锷], and it was produced at Factory 211 (Capital Astronautics Co. [首都航天机械公司], also known as Capital Machine Shop [首都机械厂]).

In 1972 US intelligence estimated an IOC for this system as being expected in 1974 or 1975. Deployment actually began in 1975-76, but only four DF-4s were believed to be in place by 1984.[11]

There were two versions of the missile developed,[12] one version housed in caves or garages to be rolled out on launch and another silo based version.

The U.S. DoD estimates that the missile will continue to serve as a regional deterrence instrument until they can be replaced by the DF-31.[13] This will be a significant capability gain for the Second Artillery Corps. The DF-31A has a range of 11,700 kilometers (as opposed to just 7,000 for the DF-4) and is road- and rail-mobile, and thus more survivable than the silo-based DF-4.[14]

Notes

  1. 1 2 3 4 The Federation of American Scientists & The Natural Resources Defense Council Chinese Nuclear Forces and U.S. Nuclear War Planning p. 202
  2. ↑ PRC Defense Policy and Armed Forces, National Intelligence Estimate 13-76, November 11, 1976, p. 47.
  3. ↑ 中国东风系列导弹简介
  4. ↑ http://csatm.cn/f0309110006.html
  5. ↑ DF-4 - China Nuclear Forces
  6. ↑ DF-4 - China Nuclear Forces
  7. ↑ 东风4型洲际导弹 (Dongfeng VI intercontinental ballistic missile)
  8. ↑ Diamond, Howard (July 1, 1999). "Chinese Strategic Plans Move Forward with Missile Test". Arms Control Today. Arms Control Association. ISSN 0196-125X. Retrieved August 22, 2015 – via HighBeam Research. (Subscription required (help)).
  9. ↑ Ballistic and Cruise Missile Threat (Report). Defense Intelligence Ballistic Missile Analysis Committee. June 2017. p. 29. NASIC-1031-0985-17. Retrieved 16 July 2017.
  10. ↑ U.S. Department of Defense, Office of the Secretary of Defense, The Military Power of the People’s Republic of China, 2005, 2005, p. 28
  11. ↑ "DF-4 - China Nuclear Forces". Fas.org. Retrieved 2010-03-21.
  12. ↑ U.S. Department of Defense, Office of the Secretary of Defense, The Military Power of the People’s Republic of China, 2000, 2000, p. 17.
  13. ↑ U.S. Department of Defense, Office of the Secretary of Defense, Military Power of the People’s Republic of China, 2006, May 22, 2006, p. 50.
  14. ↑ http://missilethreat.com/missiles/df-31-31a-css-9/?country=china#china

Operators

Preceded by
DF-3		 DF-4 Succeeded by
DF-5
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