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DF-2

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DF-2
DF-2 displayed at People's Army Museum, Beijing

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AKA: CSS-1;Dong-Feng 2;Dun-1. Status: Retired 1979. First Launch: 1962-03-21. Last Launch: 1974-01-01. Number: 7 . Payload: 1,500 kg (3,300 lb). Thrust: 300.00 kN (67,440 lbf). Gross mass: 31,900 kg (70,300 lb). Height: 20.61 m (67.61 ft). Diameter: 1.65 m (5.41 ft). Span: 2.13 m (6.98 ft). Apogee: 200 km (120 mi).

The first launch failure in 1962 led to a two year delay and a complete redesign.

Maximum range: 1,050 km (650 mi). Boost Propulsion: Storable liquid rocket.

• Decision to withhold R-12 and nuclear warhead drawing package from China over Sidewinder affair - . Nation: China. Related Persons: Khrushchev, Tsien. Spacecraft: Project 581.

  The Soviet Central Committee advises China it will not provide prototype or drawings of atomic bombs as agreed previously. Khrushchev promised China that he would provide the drawing package for the R-12 IRBM as soon as testing was completed. However then came the affair of the Sidewinder. At the end of 1958 or early 1959 a complete missile fell into the hands of the Chinese. They promised to provide it to the Russians, but then dragged their feet. They were finally told in February 1959 that unless they provided the Sidewinder, they would not be given the R-12 package. The missile was finally delivered but it was found that the key crystal in the infrared homing sensor was missing. The Chinese had also been caught disassembling a P-15 cruise missile at a training facility in China. It had taken the Russian trainers two days to get it reassembled correctly. Therefore on June 20 1959 the decision was taken not to transfer the R-12 or the promised nuclear warhead design to China.

  The Soviets created a new design bureau to copy the Sidewinder. Fabrication of the crystal for the infrared sensor was the main obstacle. The initial production batches had a 99% rejection rate. A state commission was set up to get to the bottom of the problem, but couldn't find a solution. The main problem seemed to be low-quality ore provided by the mines.

• Nation: China. Agency: PRC. Apogee: 0 km (0 mi).

  First DF-2 launch attempt. The rocket impacted the earth after only 69 seconds of flight. Fundamental design errors were discovered in calculating flexing of the rocket in flight, placement of the guidance system, and engine mounting. The missile was completely redesigned for reduced thrust.

• Nation: China. Agency: PRC. Apogee: 200 km (120 mi). This followed a two-year complete redesign and test program following the first launch failure in 1962. The reduced-thrust missile had a range of 1050 km with a 1550 kg warhead, barely enough to reach Japan..

• Test mission - . Nation: China. Agency: PRC. Apogee: 200 km (120 mi).

• Test mission - . Nation: China. Agency: PRC. Apogee: 200 km (120 mi).

• Nation: China. Apogee: 200 km (120 mi).

• Nation: China. Apogee: 200 km (120 mi).

• Nation: China. Apogee: 200 km (120 mi).