Engineering:Long March 11

From HandWiki
Short description: Small orbital launch vehicle

Long March 11
FunctionSmall-lift launch vehicle
ManufacturerCALT
Country of originChina
Size
Height20.8 m (68 ft)
Diameter2.0 m (6.6 ft)
Mass58,000 kg (128,000 lb)
Stages4
Capacity
Payload to LEO700 kg (1,500 lb)
Payload to SSO 700km350 kg (770 lb)
Associated rockets
FamilyLong March
ComparableMinotaur I, Pegasus, Start-1
Launch history
StatusActive
Launch sitesJiuquan
Xichang
Special converted barge, Yellow Sea
Total launches18
Successes18
First flight25 September 2015
Last flight8 November 2025 (most recent)
First stage – P35
Engines1 Solid
Thrust1,200 kilonewtons (270,000 lbf)
Burn time71 seconds
Second stage – Solid
Engines1 Solid
Third stage – Solid
Engines1 Solid
Fourth stage – Solid
Engines1 Solid

The Long March 11 (Chinese: 長征十一號運載火箭), or Chang Zheng 11 as in pinyin, abbreviated LM-11 for export or CZ-11 within China (and designated 11H when launched from sea), is a Chinese four stage solid-propellant carrier rocket of the Long March family, which is developed by the China Aerospace Science and Technology Corporation. It was designed as a "quick reaction" rocket with the ability to launch on short notice, from road vehicles (CZ-11) and ships (CZ-11H).[1]

Based on a number of design similarities, it is believed the rocket was developed from the DF-31 ICBM, by adding an additional solid propelant 4th stage to the 3 stage missile. This is what gives it its quick launch capabilities, as it can be stored for a longer time than liquid-fueled rockets, and then quickly cold launched from a launch tube, from a sea barge or road mobile vehicle.[2]

The maiden flight of the Long March 11 occurred on 25 September 2015.[3] The first sea launch occurred on 5 June 2019, from a converted barge stationed in the Yellow Sea.[4] Eighteen launches have been made as of December 2025, six of them from sea.

Launch Statistics

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List of launches

Main article: Engineering:List of Long March launches
Flight number Serial number Date (UTC) Launch site Payload Orbit Outcome
1 Y1 25 September 2015
01:41 		JSLC Pujiang-1
Tianwang 1A
Tianwang 1B
Tianwang 1C 		SSO Success[3]
2 Y2 9 November 2016
23:42 		JSLC XPNAV 1
Xiaoxiang 1 		SSO Success[3][5]
3 Y3 19 January 2018
04:12 		JSLC Jilin-1 07
Jilin-1 08
4 cubesats 		SSO Success[6]
4 Y4 26 April 2018
04:42[7] 		JSLC Zhuhai-1 OVS-1
Zhuhai-1 OHS-1/2/3/4 		SSO Success
5 Y5 21 December 2018
23:51[8] 		JSLC Hongyun-1 SSO Success
6 Y6 21 January 2019
05:42[9] 		JSLC Jilin-1 Spectral 01/02
Lingque-1A
Xiaoxiang-1-03 		SSO Success
7 HY1 5 June 2019
04:06[4] 		Special converted barge (Tai Rui)
Yellow Sea
(34.90° N, 121.19° E) 		Bufeng-1A
Bufeng-1B
Jilin-1 High Resolution 03A
Xiaoxiang-1-04
Tianqi-3
Tianxiang-1A
Tianxiang-1B 		LEO Success
8 Y7 19 September 2019
06:42[10] 		JSLC Zhuhai-1 OVS-3
Zhuhai-1 OHS-3A/B/C/D 		SSO Success
9 Y8 29 May 2020
20:13[11] 		XSLC XJS G (Earth observation technology)
XJS H (Earth observation technology) 		LEO Success
10 HY2 15 September 2020
01:23[12] 		Special converted barge (De Bo 3)
Yellow Sea
(34.31° N, 123.76° E) 		Jilin-1 Gaofen-03B 01/02/03/04/05/06
Jilin-1 Gaofen-03C 01/02/03 		SSO Success
11 Y9 9 December 2020
20:14[13] 		XSLC GECAM A
GECAM B 		LEO Success
12 Y10 30 March 2022
02:29[14] 		JSLC Tianping-2A
Tianping-2B
Tianping-2C 		LEO Success
13 HY3 30 April 2022
03:30[15] 		Special converted barge (Tai Rui)
East China Sea
(32.18° N, 123.79° E) 		Jilin-1 Gaofen-03D 04/05/06/07
Jilin-1 Gaofen-04A 		SSO Success
14 HY4 7 October 2022
13:10[16] 		Special converted barge (DeFu 15002)
Offshore waters of Haiyang Port
(36.23° N, 121.20° E) 		Centispace 1-S5/S6 LEO Success
15 Y12 16 December 2022
06:17[17] 		XSLC Shiyan 21 LEO Success
16 Y11 15 March 2023
11:41[18] 		JSLC Shiyan 19 SSO Success
17 HY5 25 December 2023
22:39[19] 		Special converted barge (Bo Run Jiu Zhou)
South China Sea 		Shiyan 24C-01
Shiyan 24C-02
Shiyan 24C-03 		SSO Success
18 HY6 8 November 2025
21:01 		Special converted barge (Dong Fang Hang Tian Gang)
Offshore waters of Haiyang Port 		Shiyan 32-01
Shiyan 32-02
Shiyan 32-03 		LEO Success

References

  1. ↑ "长征十一号固体运载火箭研制历程——继承，但不守旧" (in ZH). http://zhuanti.spacechina.com/n1038285/c1039953/content.html. 
  2. ↑ Krebs, Gunter. "CZ-11 (Chang Zheng-11)". Gunter's Space Page. http://space.skyrocket.de/doc_lau/cz-11.htm. 
  3. ↑ 3.0 3.1 3.2 Barbosa, Rui C. (25 September 2015). "China debuts Long March 11 lofting Tianwang-1 trio". NASASpaceflight.com. http://www.nasaspaceflight.com/2015/09/china-debuts-long-march-11-lofting-tianwang-1-trio/. 
  4. ↑ 4.0 4.1 Barbosa, Rui C.. "China conducts first Sea Launch mission with Long March 11 launch of seven satellites". NASASpaceflight.com. https://www.nasaspaceflight.com/2019/06/china-first-sea-launch-long-march-11-seven-satellites/. 
  5. ↑ Krebs, Gunter. "XPNAV 1". Gunter's Space Page. http://space.skyrocket.de/doc_sdat/xpnav-1.htm. 
  6. ↑ Barbosa, Rui C. (19 January 2018). "Long March 11 in multiple satellite launch". NASASpaceflight.com. https://www.nasaspaceflight.com/2018/01/long-march-11-multiple-satellite-launch/. 
  7. ↑ Barbosa, Rui C. (26 April 2018). "Long March 11 launches multiple satellites". NASASpaceflight.com. https://www.nasaspaceflight.com/2018/04/long-march-11-launches-multiple-satellites/. 
  8. ↑ Barbosa, Rui C.. "Chinese Long March 11 launches with the first Hongyun satellite". NASASpaceflight.com. https://www.nasaspaceflight.com/2018/12/chinese-long-march-11-launches-hongyun-satellite/. 
  9. ↑ "Long March 11 launches with three satellites – NASASpaceFlight.com" (in en-US). 21 January 2019. https://www.nasaspaceflight.com/2019/01/long-march-11-launches-with-three-satellites/. 
  10. ↑ Barbosa, Rui C. (19 September 2019). "Long March 11 lofts Zhuhai-1 Group-3 satellites". NASASpaceflight.com. https://www.nasaspaceflight.com/2019/09/long-march-11-zhuhai-1-group-3-satellites/. 
  11. ↑ Clark, Stephen (1 June 2020). "Two Chinese launches deploy satellites for Earth-imaging, tech demonstrations". Spaceflight Now. https://spaceflightnow.com/2020/06/01/two-chinese-launches-deploy-satellites-for-earth-imaging-tech-demonstrations/. 
  12. ↑ "China successfully launches satellites from ocean-going platform". Spaceflight Now. 17 September 2020. https://spaceflightnow.com/2020/09/17/china-successfully-launches-satellites-from-ocean-going-platform/. 
  13. ↑ "China launches two satellites for gravitational wave detection". Hindustan Times. 10 December 2020. https://www.hindustantimes.com/world-news/china-successfully-launches-two-satellites-for-gravitational-wave-detection/story-3TDh05svfDFswRWEOFz3JN.html. 
  14. ↑ "China launches three satellites". Xinhua. 30 March 2022. https://english.news.cn/20220330/639bd31923be428dba47c23451604080/c.html. 
  15. ↑ "海上一箭打五星！长十一，成功！". 30 April 2022. https://mp.weixin.qq.com/s/R7PkQh0ol-t-E5ALtcAoHA. 
  16. ↑ Jones, Andrew (7 October 2022). "China launches pair of navigation enhancement satellites from sea platform". Space.com. https://www.space.com/china-long-march-11-launch-navigation-satellites. 
  17. ↑ Jones, Andrew (16 December 2022). "China completes seventh space launch inside 10 days". SpaceNews. https://spacenews.com/china-completes-seventh-space-launch-inside-10-days/. 
  18. ↑ Jones, Andrew (15 March 2023). "China launches classified Shiyan-19 test satellite from the Gobi Desert". SpaceNews. https://spacenews.com/china-launches-classified-shiyan-19-test-satellite-from-gobi-desert/. 
  19. ↑ "China launches 3 satellites from sea". Xinhua. 26 December 2023. https://english.news.cn/20231226/ca77516407a8492383a1804bb41e2e53/c.html. 



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