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DF-4
Part of DF-3 Family
DF-4
DF-4
Chinese intermediate range ballistic missile. Development of the DF-4 began in 1964 with the objective of fielding a ballistic missile capable of hitting Guam. The technical solution was to add a second stage to the DF-3 IRBM.

AKA: CSS-3;Dong-Feng 4. Status: Retired 2005. First Launch: 1969-11-16. Last Launch: 2002-01-03. Number: 14 . Payload: 2,190 kg (4,820 lb). Thrust: 1,224.00 kN (275,166 lbf). Gross mass: 82,000 kg (180,000 lb). Height: 28.05 m (92.02 ft). Diameter: 2.25 m (7.38 ft). Span: 2.74 m (8.98 ft). Apogee: 500 km (310 mi).

The two stage vehicle consisting of 1 x DF3-YF2A + 1 x DF4-YF3. It would form the basis of the CZ-1 satellite launch vehicle.

Maximum range: 4,760 km (2,950 mi). Number Standard Warheads: 1. Warhead yield: 3,300 KT. CEP: 1.19 km (0.73 mi). Boost Propulsion: Storable liquid rocket, Nitric acid/UDMH. Initial Operational Capability: 1981. Total Number Built: 10.



Subtopics

CZ-7/YZ1A Chinese orbital launch vehicle variant with YZ1A upper stage.

Family: IRBM. Country: China. Launch Sites: Jiuquan, Jiuquan LA2A, Jingyu. Stages: CZ-1-2, CZ-YF-2. Agency: CALT. Bibliography: 2, 31, 87.
Photo Gallery

DF-4DF-4



Early 1962 - . LV Family: DF-3. Launch Vehicle: DF-4.
  • Chinese project management - . Nation: China. Related Persons: Tsien. Tsien introduced a computer tool for management of Chinese aerospace development projects analogous to the American PERT program..

1964 September 12 - . LV Family: DF-3. Launch Vehicle: DF-1, DF-3 Tsien, DF-4.
  • Chinese missiles redesignated and new development plan adopted. - . Nation: China. Related Persons: Tsien. Program: Long March.

    Tsien had conducted a series of meetings with the Chinese leadership during the year to redefine China's missile development plans. There are clashes between Tsien, who favours an American engineering approach, and his staff, who were trained in Russian and favour the Soviet approach. Finally the missiles were defined by their target objectives, and a new development plan was adopted, with definite goals. The 1059 missile (copy of Russian R-2) was redesignated DF-1. The DF-2 was to be improved to carry an atomic bomb to a range sufficient to hit Japan. The DF-3 ICBM was cancelled, and the new DF-3 project would involve development of a nuclear-tipped missile capable of reaching the Philippines (earlier referred to as the DF-1). The DF-4 was to be capable of hitting Guam, and the DF-5 would be an ICBM capable of reaching the United States. The DF-2, DF-3 and DF-4 would use strap-down accelerometer guidance packages, while the DF-5 was to be equipped with a full-fledged inertial guidance unit.


1966 January 4 - . LV Family: DF-3. Launch Vehicle: DF-4.
  • Chinese ICBM plans - . Nation: China. Related Persons: Tsien. Tsien proposes to add electronic countermeasures and other penetration aids to the DF-5 ICBM in order to defeat the planned American ABM system..

1969 November 16 - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • R&D (Destruct) - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

1970 January 30 - . Launch Site: Jiuquan. Launch Complex: Jiuquan LA2A. LV Family: DF-3. Launch Vehicle: DF-4.
  • R&D (Minfeng target) - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi). First test of prototype DF-3 (perhaps same configuration as CZ-1); not deployed..

1970 November 23 - . Launch Site: Jingyu. LV Family: DF-3. Launch Vehicle: DF-4.
  • Long range test - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

1971 November 15 - . Launch Site: Jianshui. LV Family: DF-3. Launch Vehicle: DF-4.
  • Long range test - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

1976 May 14 - . 21:55 GMT - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Performance test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

1976 June 1 - . Launch Site: Jiuquan. Launch Complex: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Date uncertain. First test of DF-4. - . Nation: China. Program: Long March.

1976 August 24 - . 22:00 GMT - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Performance test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

1977 September 30 - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Full range test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

1977 November 22 - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Full range test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

1980 February 9 - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

1980 August 2 - . 15:01 GMT - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

1980 August 15 - . Launch Site: Jingyu. Launch Complex: Jingyu. LV Family: DF-3. Launch Vehicle: DF-4.
  • First DF-4 test from Jingyu. - . Nation: China. Program: Long March. First launch from Jingyu test site..

1980 October 15 - . Launch Site: Jingyu. Launch Complex: Jingyu. LV Family: DF-3. Launch Vehicle: DF-4.
1980 October 31 - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

1986 Oct - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Op test - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

1992 - . Launch Site: Jiuquan. LV Family: DF-3. Launch Vehicle: DF-4.
  • Training - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

2002 January 3 - . 12:15 GMT - . Launch Site: Taiyuan. LV Family: DF-3. Launch Vehicle: DF-4. FAILURE: Launch vehicle failure..
  • CZ-1 Missile Technology Test - . Nation: China. Agency: PRC. Apogee: 100 km (60 mi). Chinese People's Liberation Army test launch with dummy warhead. Suborbital - failure. Delayed from early November 2001..


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