Long March 9
Function | Super heavy-lift launch vehicle |
---|---|
Manufacturer | China Academy of Launch Vehicle Technology |
Country of origin | People's Republic of China |
Size | |
Height | 103 m (338 ft) |
Diameter | 9.5 m (31 ft) |
Mass | 3,997,000 kg (8,812,000 lb) |
Stages | 3 |
Capacity | |
Payload to LEO | |
Mass | 140,000 to 150,000 kg (310,000 to 330,000 lb)[1] |
Payload to TLI | |
Mass | 53,000 kg (117,000 lb)[2] |
Payload to MTO | |
Mass | 44,000 kg (97,000 lb)[2] |
Associated rockets | |
Family | Long March (rocket family) |
Comparable |
|
Launch history | |
Status | In development |
Boosters | |
No. boosters | 4 |
Engines | 2 YF-130 |
Thrust | 4800KN |
Specific impulse | 306 |
Burn time | N/A |
Propellant | LOX/RP-1 |
First stage | |
Engines | 4 YF-130 |
Thrust | 4800KN |
Specific impulse | 306 |
Burn time | N/A |
Propellant | LOX/RP-1 |
Second stage | |
Engines | 2 YF-90 |
Thrust | 2200KN |
Specific impulse | 453 |
Burn time | N/A |
Propellant | LH2/LOX |
Third stage | |
Engines | 4 YF-79 |
Thrust | 243KN |
Specific impulse | 460 |
Burn time | N/A |
Propellant | LH2/LOX |
Long March 9 (Chinese: 长征九号火箭, LM-9 or Changzheng 9, CZ-9) is a Chinese super-heavy carrier rocket concept that is currently under development.[3][4] It is the ninth iteration of the Long March rocket family, named for the Chinese Red Army's 1934–35 Long March campaign/retreat during the Chinese Civil War.
Current plans call for the Long March 9 to have a maximum payload capacity of 140,000 kg to low Earth orbit (LEO),[5] 53,000 kg to trans-lunar injection, and 44,000 kg to Mars.[6][3] Its first flight is expected to occur in 2030 in advance of possible Chinese crewed lunar missions sometime in the 2030s time-frame;[4] a Martian sample return mission also has been proposed as a possible payload for this rocket.[3]
As of 2016, the CZ-9 is designed as a three-staged rocket, with a first-stage core diameter of 10 meters and using a cluster of four engines. Multiple variants of the rocket have been proposed, with CZ-9 being the largest: this 'base variant' has four additional liquid-fuel boosters strapped onto the core stage (each individual booster would be up to 5 meters in diameter) and it is this variant that has the aforementioned LEO payload capacity of 140,000 kg. In addition to the base variant, there is the CZ-9A variant which has only two additional boosters and a LEO payload capacity of 100,000 kg. Finally, there is the CZ-9B having only the bare 10-meter diameter core stage and a LEO payload capacity of 50,000 kg.[7] The expected payload capacities of the Long March 9 place it in the class of super heavy-lift launch vehicle; the rocket's development program was formally approved by the Chinese government in 2021.[4]
On 24 June 2021, Long Lehao, chief designer of the Long March series, provided some updates regarding the Long March 9 at the University of Hong Kong in a presentation titled "Long March Rocket and China's Aerospace". The original design, called the 11th version (2011), had been supplanted by a new design, called the 21st version, which featured many changes including an enlarged diameter of 10.6 meters, a length of 108 meters, and a weight of 4,122 tons. 16 YF-135 liquid oxygen kerosene engines, each with over 300 tons of thrust, will be used in the first stage; 120 ton hydrogen-oxygen engines will be used in the second and third stages, with four in the second stage and one in the third stage. All fuel tanks were changed to a common bulkhead design, and all external boosters had been removed. The payload capacity to low Earth orbit was increased from 140 to 150 tons, and the payload to trans-lunar injection was increased to 53 tons. Long noted that this new version was still under review as of the time of presentation.[8][9]
See also[]
- China National Space Administration
- Shenzhou spacecraft
- Space program of China
- Comparison of orbital launchers families
- Comparison of orbital launch systems
References[]
- ^ 男神是婑方方 (2020). "中国长征九号项目:不仅仅是一款超重型火箭". 互联网.
- ^ Jump up to: a b 秦旭东、龙乐豪、容易 (2016). "《我国航天运输系统成就与展望》". 深空探测学报 (in Chinese). 2016年第3卷第4期.
- ^ Jump up to: a b c Jones, Andrew (5 July 2018). "China reveals details for super-heavy-lift Long March 9 and reusable Long March 8 rockets". SpaceNews. Retrieved 1 March 2021.
- ^ Jump up to: a b c Berger, Eric (24 February 2021). "China officially plans to move ahead with super-heavy Long March 9 rocket". Ars Technica. Retrieved 1 March 2021.
- ^ "First Look: China's Big New Rockets". AmericaSpace. July 18, 2012. Archived from the original on January 20, 2017. Retrieved August 25, 2013.
- ^ "梁小虹委员:我国重型运载火箭正着手立项 与美俄同步". scitech.people.com.cn. Archived from the original on July 28, 2013. Retrieved June 28, 2013.
- ^ "China Aims for Humanity's Return to the Moon in the 2030s". popsci.com. 2016-05-05. Archived from the original on 2016-05-08. Retrieved 2018-07-14.
- ^ Jones, Andrew (28 June 2021). "China's super heavy rocket to construct space-based solar power station". SpaceNews. Retrieved 30 June 2021.
- ^ "[线上同步直播] 驰骋大航天时代 - 与国家航天工程科学家现场交流 | Mainland Affairs Office (MAO), HKU". mainlandaffairs.hku.hk. Retrieved 2021-06-25.
External links[]
Wikimedia Commons has media related to Long March 9. |
- Long March (rocket family)
- Rocket families
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