DF- 4 Totally Explained

Everything about Df-4 totally explained

The Dong Feng 4 or DF-4 (also known as the CSS-3) is a long-range two-stage Chinese Intermediate-range ballistic missile with liquid fuel (Nitric acid/UDMH). 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 Mt yield, with a nominal range of 4,750km. The missile uses an inertial guidance system, resulting in a CEP of 1,500 meters.

History

The decision to develop the DF-4 was made in 1965 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 [称首都机械厂]).
There were two versions of the missile developed, 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.

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