Long March 1
 | |
| Manufacturer | MAI,CASC,CAST |
|---|---|
| Country of origin | China |
| Size | |
| Height | 29.86 m (98.0 ft) |
| Diameter | 2.25 m (7 ft 5 in) |
| Mass | 81,570 kg (179,830 lb) |
| Stages | 3 |
| Capacity | |
| Payload toLow Earth orbit | |
| Mass | 300 kg (660 lb) |
| Associated rockets | |
| Family | Long March |
| Launch history | |
| Status | Retired |
| Launch sites | Jiuquan Satellite Launch Center |
| Total launches | 2 |
| Success(es) | 2 |
| First flight | 24 April 1970 |
| Last flight | 3 March 1971 |
| Type of passengers/cargo | Dong Fang Hong I |
| First stage | |
| Height | 17.835 m (58.51 ft) |
| Diameter | 2.25 m (7 ft 5 in) |
| Empty mass | 4,180 kg (9,220 lb) |
| Gross mass | 65,250 kg (143,850 lb) |
| Powered by | 1YF-2A(4 xYF-1A) |
| Maximum thrust | 1,101.2 kN (247,600 lbf) (sea level) 1,214.4 kN (273,000 lbf) (vacuum level) |
| Specific impulse | 242.5 s (2.378 km/s) (sea level) 267.4 s (2.622 km/s) (vacuum level) |
| Burn time | About 130 seconds[1] |
| Propellant | UDMH/AK27S[2] |
| Second stage | |
| Height | 7.486 m (24.56 ft) |
| Diameter | 2.25 m (7 ft 5 in) |
| Empty mass | 2,340 kg (5,160 lb) |
| Gross mass | 13,550 kg (29,870 lb) |
| Powered by | YF-3A |
| Maximum thrust | 320.2 kN (72,000 lbf) |
| Specific impulse | 286.9 s (2.814 km/s) |
| Burn time | About 126 seconds |
| Propellant | UDMH/AK27S |
| Third stage – FG-02 | |
| Height | 4.565 m (14.98 ft) |
| Diameter | 0.77 m (2 ft 6 in) |
| Empty mass | 400 kg (880 lb) |
| Gross mass | 2,200 kg (4,900 lb) |
| Powered by | FG-02 |
| Maximum thrust | 181 kN (41,000 lbf) |
| Specific impulse | 254 s (2.49 km/s) |
| Burn time | 38 seconds |
| Propellant | Solid:Polysulfide/AP |
TheLong March 1( trường chinh nhất hào ), also known as theChangzheng-1(CZ-1),[3]was the first member of China'sLong March rocket family.[4]Like the U.S.'s and the Soviet Union's first rockets, it was based on a class of ballistic missiles, namely theDF-4class.[5]
History
[edit]Development started in January 1965 as the Seventh Ministry of Machinery Industry issued a design task. The two stage liquid fueledDF-4was modified by adding a third stage in order to make it to the desired orbit. Long March 1's second flight launched China's first satelliteDong Fang Hong 1to space on 24 April 1970. The rocket was operational during 1970–1971.Wang Xijiwas the chief designer of the rocket.[6]
Launch History
[edit]| Date and time (GMT) | Launch site | Payload | Orbit | Function | Decay | Outcome | Notes |
| 24 April 1970 13:35 |
 Jiuquan,LA-2A
|
Dong Fang Hong 1
|
MEO | Technology demonstration | 14 May 1970 | Success | First satellite launched by China. |
| 3 March 1971 12:15 |
Jiuquan, LA-2A
|
Shijian 1
|
LEO | Technology demonstration | 17 June 1979 | Success |
See also
[edit]
- DF-4-ICBMon which this rocket is based
- Long March 1D- Other member of this rocket family
- YF-2A- Main propulsion module
- FG-02- Upper stage
References
[edit]- ^"Space Launchers - Long March".Archivedfrom the original on 8 April 2023.Retrieved21 April2015.
- ^"Go Taikonauts! - Launch Vehicle".Archived fromthe originalon 27 October 2009.Retrieved21 April2015.
- ^"CZ-1".Astronautix.com. Archived fromthe originalon 16 May 2008.Retrieved21 April2015.
- ^Vấn đỉnh thương khung: Cộng hòa quốc hàng thiên kỷ thật.Trung quốc nam kinh: Giang tô văn nghệ xuất bản xã. 2009. p. 128.ISBN978-7-5399-3457-0.
- ^"Long March".Encyclopedia Britannica.Archivedfrom the original on 23 March 2021.Retrieved16 December2020.
- ^Stokes, Mark A. (July 2003). "The People's Liberation Army and China's Space and Missile Development". In Laurie Burkitt; Andrew Scobell;Larry Wortzel(eds.).The Lessons of History: The Chinese people's Liberation Army at 75(PDF).Strategic Studies Institute. p. 235.ISBN978-1-58487-126-2.Archived fromthe original(PDF)on 27 February 2023.Retrieved2 December2023.
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