Long March (rocket)

Article

August 14, 2022

The Long March (Czech transliteration Chang-cheng, Chinese: 长征, English Long March) is a series of space carriers developed by the People's Republic of China. It is marked LM for export and or CZ in China, from the transcription of the name of the rocket "Chang Zheng". The modified Dong Feng 4 intercontinental missile was used as the first CZ-1 carrier.

History

China launched its first satellite, known as Dong Fang Hong 1 ("East is Red"), into Earth orbit by a Long March rocket on April 24, 1970, becoming the fifth nation capable of launching a satellite into orbit. The first launches focused on Chinese satellites and had variable success. Since 1990, the Long March rocket has opened up to international bids. As of March 2016, this rocket has flown more than 225 times.

Usage

The rocket was and is used for the Shenzhou program. With her help, the Jade Rabbit six-wheeled cart was transported to the surface of the Moon in December 2013.

Fuels

The first two stages of the Long March 1 rockets use asymmetric dimethylhydrazine (UDMH) and a mixture of HNO3 and N2O4 as an oxidizer, the third stage uses solid fuels. Long march 2, 3 and 4 use pure N2O4 as an oxidizer and also UDMH as a fuel. Long March 3 uses a hydrogen and oxygen engine for its third stage. The new generation of rockets Dlouhý pochod 5 and derived from it Dlouhý pochod 6 and 7 use liquid oxygen and kerosene in the first stages and auxiliary engines, and hydrogen and oxygen in the upper stages.

Variants

References

This article used a translation of the text from the Long March (rocket family) article on the English Wikipedia.

External links

Images, sounds or videos on the subject of the Long March at Wikimedia Commons