Long March 9

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Long March 9
Chinese: 长征九号
FunctionSuper heavy-lift launch vehicle
ManufacturerChina Academy of Launch Vehicle Technology
Country of origin People's Republic of China
Size
Height103 m (338 ft)
Diameter9.5 m (31 ft)
Mass3,997,000 kg (8,812,000 lb)
Stages3
Capacity
Payload to LEO
Mass140,000 to 150,000 kg (310,000 to 330,000 lb)[1]
Payload to TLI
Mass53,000 kg (117,000 lb)[2]
Payload to MTO
Mass44,000 kg (97,000 lb)[2]
Associated rockets
FamilyLong March (rocket family)
Comparable
  • SpaceX Super Heavy
  • Space Launch System
  • Falcon Heavy
  • Ares V
  • Energia
  • N1 (rocket)
  • Saturn V
Launch history
StatusIn development
Boosters
No. boosters4
Engines2 YF-130
Thrust4800KN
Specific impulse306
Burn timeN/A
PropellantLOX/RP-1
First stage
Engines4 YF-130
Thrust4800KN
Specific impulse306
Burn timeN/A
PropellantLOX/RP-1
Second stage
Engines2 YF-90
Thrust2200KN
Specific impulse453
Burn timeN/A
PropellantLH2/LOX
Third stage
Engines4 YF-79
Thrust243KN
Specific impulse460
Burn timeN/A
PropellantLH2/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[]

  1. ^ 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.
  2. ^ 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.
  3. ^ 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.
  4. ^ 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.
  5. ^ "First Look: China's Big New Rockets". AmericaSpace. July 18, 2012. Archived from the original on January 20, 2017. Retrieved August 25, 2013.
  6. ^ "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.
  7. ^ "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.
  8. ^ Jones, Andrew (28 June 2021). "China's super heavy rocket to construct space-based solar power station". SpaceNews. Retrieved 30 June 2021.
  9. ^ "[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[]

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