Long March 1D

During the 1990s CALT developed an improved version of the DF-4 to test the reentry vehicle warheads of the DF-31.

[6][7][8] They took advantage of this development and offered it as the Long March 1D for commercial application.

The modifications included: The new design did not have a good reception and was only used for reentry vehicle tests.

The final and failed launch was on January 3, 2002.

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