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DF-4

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DF-4

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.

Photo Gallery

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DF-4

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• 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..

• 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.

• 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..

• R&D (Destruct) - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

• 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..

• Long range test - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

• Long range test - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

• Performance test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

• Date uncertain. First test of DF-4. - . Nation: China. Program: Long March.

• Performance test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

• Full range test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

• Full range test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

• Test - . Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

• Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

• First DF-4 test from Jingyu. - . Nation: China. Program: Long March. First launch from Jingyu test site..

• Second DF-4 test from Jingyu. - . Nation: China. Program: Long March.

• Nation: China. Agency: MAI. Apogee: 1,000 km (600 mi).

• Op test - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

• Training - . Nation: China. Agency: MAI. Apogee: 500 km (310 mi).

• 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..