Long March 11

Function	Small-lift launch vehicle
Manufacturer	CALT
Country of origin	China
Size
Height	20.8 m (68 ft)
Diameter	2.0 m (6.6 ft)
Mass	58,000 kg (128,000 lb)
Stages	4
Capacity
Payload to LEO
Mass	700 kg (1,500 lb)
Payload to SSO 700km
Mass	350 kg (770 lb)
Associated rockets
Family	Long March
Comparable	Minotaur I, Pegasus, Start-1
Launch history
Status	Active
Launch sites	Jiuquan; Xichang; Special converted barge, Yellow Sea
Total launches	18
Success(es)	18
First flight	25 September 2015
Last flight	8 November 2025 (most recent)
First stage – P35
Powered by	1 Solid
Maximum thrust	1,200 kilonewtons (270,000 lbf)
Burn time	71 seconds
Second stage – Solid
Powered by	1 Solid
Third stage – Solid
Powered by	1 Solid
Fourth stage – Solid
Powered by	1 Solid
	[edit on Wikidata]

Long March 11

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[update], six of them from sea.

Launch Statistics

1

2

3

4

2015

2020

2025

Failure
Partial failure
Success
Planned

List of 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

^ "长征十一号固体运载火箭研制历程——继承，但不守旧". CASC (in Chinese).
^ Krebs, Gunter. "CZ-11 (Chang Zheng-11)". Gunter's Space Page. Retrieved 13 August 2018.
^ a b c Barbosa, Rui C. (25 September 2015). "China debuts Long March 11 lofting Tianwang-1 trio". NASASpaceflight.com. Retrieved 25 September 2015.
^ a b Barbosa, Rui C. "China conducts first Sea Launch mission with Long March 11 launch of seven satellites". NASASpaceflight.com. Retrieved 11 December 2025.
^ Krebs, Gunter. "XPNAV 1". Gunter's Space Page. Retrieved 1 November 2016.
^ Barbosa, Rui C. (19 January 2018). "Long March 11 in multiple satellite launch". NASASpaceflight.com. Retrieved 19 January 2018.
^ Barbosa, Rui C. (26 April 2018). "Long March 11 launches multiple satellites". NASASpaceflight.com. Retrieved 26 April 2018.
^ Barbosa, Rui C. "Chinese Long March 11 launches with the first Hongyun satellite". NASASpaceflight.com. Retrieved 21 December 2018.
^ "Long March 11 launches with three satellites – NASASpaceFlight.com". 21 January 2019. Retrieved 21 January 2019.
^ Barbosa, Rui C. (19 September 2019). "Long March 11 lofts Zhuhai-1 Group-3 satellites". NASASpaceflight.com. Retrieved 19 September 2019.
^ Clark, Stephen (1 June 2020). "Two Chinese launches deploy satellites for Earth-imaging, tech demonstrations". Spaceflight Now. Retrieved 2 June 2020.
^ "China successfully launches satellites from ocean-going platform". Spaceflight Now. 17 September 2020. Retrieved 18 September 2020.
^ "China launches two satellites for gravitational wave detection". Hindustan Times. 10 December 2020. Retrieved 10 December 2020.
^ "China launches three satellites". Xinhua. 30 March 2022. Retrieved 30 March 2022.
^ "海上一箭打五星！长十一，成功！" [Five satellites with one rocket at sea! Long March 11, success!]. 30 April 2022. Retrieved 30 April 2022.
^ Jones, Andrew (7 October 2022). "China launches pair of navigation enhancement satellites from sea platform". Space.com. Retrieved 7 October 2022.
^ Jones, Andrew (16 December 2022). "China completes seventh space launch inside 10 days". SpaceNews. Retrieved 15 March 2023.
^ Jones, Andrew (15 March 2023). "China launches classified Shiyan-19 test satellite from the Gobi Desert". SpaceNews. Retrieved 15 March 2023.
^ "China launches 3 satellites from sea". Xinhua. 26 December 2023. Retrieved 26 December 2023.

[1] "长征十一号固体运载火箭研制历程——继承，但不守旧". CASC (in Chinese).

[2] Krebs, Gunter. "CZ-11 (Chang Zheng-11)". Gunter's Space Page. Retrieved 13 August 2018.

[maidenflight-3] Barbosa, Rui C. (25 September 2015). "China debuts Long March 11 lofting Tianwang-1 trio". NASASpaceflight.com. Retrieved 25 September 2015.

[sealaunch-4] Barbosa, Rui C. "China conducts first Sea Launch mission with Long March 11 launch of seven satellites". NASASpaceflight.com. Retrieved 11 December 2025.

[5] Krebs, Gunter. "XPNAV 1". Gunter's Space Page. Retrieved 1 November 2016.

[6] Barbosa, Rui C. (19 January 2018). "Long March 11 in multiple satellite launch". NASASpaceflight.com. Retrieved 19 January 2018.

[7] Barbosa, Rui C. (26 April 2018). "Long March 11 launches multiple satellites". NASASpaceflight.com. Retrieved 26 April 2018.

[8] Barbosa, Rui C. "Chinese Long March 11 launches with the first Hongyun satellite". NASASpaceflight.com. Retrieved 21 December 2018.

[9] "Long March 11 launches with three satellites – NASASpaceFlight.com". 21 January 2019. Retrieved 21 January 2019.

[10] Barbosa, Rui C. (19 September 2019). "Long March 11 lofts Zhuhai-1 Group-3 satellites". NASASpaceflight.com. Retrieved 19 September 2019.

[sfn-20200601-11] Clark, Stephen (1 June 2020). "Two Chinese launches deploy satellites for Earth-imaging, tech demonstrations". Spaceflight Now. Retrieved 2 June 2020.

[SFN20200917-12] "China successfully launches satellites from ocean-going platform". Spaceflight Now. 17 September 2020. Retrieved 18 September 2020.

[SFN20201209-13] "China launches two satellites for gravitational wave detection". Hindustan Times. 10 December 2020. Retrieved 10 December 2020.

[14] "China launches three satellites". Xinhua. 30 March 2022. Retrieved 30 March 2022.

[15] "海上一箭打五星！长十一，成功！" [Five satellites with one rocket at sea! Long March 11, success!]. 30 April 2022. Retrieved 30 April 2022.

[16] Jones, Andrew (7 October 2022). "China launches pair of navigation enhancement satellites from sea platform". Space.com. Retrieved 7 October 2022.

[17] Jones, Andrew (16 December 2022). "China completes seventh space launch inside 10 days". SpaceNews. Retrieved 15 March 2023.

[18] Jones, Andrew (15 March 2023). "China launches classified Shiyan-19 test satellite from the Gobi Desert". SpaceNews. Retrieved 15 March 2023.

[19] "China launches 3 satellites from sea". Xinhua. 26 December 2023. Retrieved 26 December 2023.

v t e Long March (rocket family)
Rockets	Feng Bao 1 Long March 1 1D Long March 2 2A 2C 2D 2E 2F Long March 3 3A 3B 3B/E 3C Long March 4 4A 4B 4C Long March 5 5B Long March 6 6A 6C Long March 7 7A Long March 8 8A Long March 9 Long March 10 Long March 11 11H Long March 12 12A
Launch sites	Jiuquan Taiyuan Wenchang Commercial Xichang
Manufacturers	China Academy of Launch Vehicle Technology Shanghai Academy of Spaceflight Technology
Designers	Wang Xiji
List of Long March launches

v t e Orbital launch systems
List of orbital launch systems Comparison of orbital launch systems
Current	Angara 1.2 A5 Ariane 6 Atlas V Ceres 1 1S 2† Chollima-1 Electron Eris† Falcon 9 Block 5 Falcon Heavy Firefly Alpha Gravity-1 GSLV H3 HANBIT-NANO† Hyperbola-1 Jielong 1 3 KAIROS† Kaituozhe 2 Kinetica 1 Kuaizhou 1 1A 11 Long March 2C 2D 2F 3A 3B/E 3C 4B 4C 5 5B 6 6A 6C 7 7A 8 11 11H 12 12A LVM3 Minotaur I IV V C New Glenn Nuri OS-M1† Pegasus XL Proton-M PSLV Qaem 100 Qased Shavit 2 Simorgh SLS Block 1 Soyuz-2 2.1a / STA 2.1b / STB Spectrum† SSLV Starship Tianlong-2 Unha Vega C Vulcan Centaur Zhuque 2E 3
In development	Antares 330 Bloostar Blue Whale 1 Cyclone-4M Deca Eclipse Epsilon S Gravity-2 Hyperbola-2 Irtysh Kinetica 2 2H 3 KSLV-III Kuaizhou 21 31 Long March 9 10 Miura 5 Neutron New Line 1 NGLV Nova OS-M 2 4 Pallas-1 Red Dwarf RFA One SLS Block 1B Block 2 Soyuz-7 Terran R Tianlong-3 VLM Vega E Zero Zuljanah
Retired	Antares 110 120 130† 230 230+ Ariane 1 2 3 4 5 ASLV Athena I II Atlas B D E/F G H I II III LV-3B SLV-3 Able† Agena Centaur Black Arrow Conestoga† Delta A B C D E G J L M N 0100 1000 2000 3000 4000 5000 II III IV IV Heavy Diamant Dnepr Energia Epsilon Europa I† II† Falcon 1 Falcon 9 v1.0 v1.1 v1.2 "Full Thrust" Feng Bao 1 GSLV Mk I H-I H-II H-IIA H-IIB Juno I Juno II Kaituozhe-1 Kosmos original 1 2/2I 3 3M Lambda 4S LauncherOne Long March 1 1D† 2A 2E 3 3B 4A Mu 4S 3C 3H 3S 3SII V N1† N-I N-II Naro-1 Paektusan† Pilot-2† R-7 Luna Molniya M L Polyot Soyuz original FG L M U U2 2-1v Soyuz/Vostok Sputnik Voskhod Vostok L K 2 2M R-29 Shtil' Volna† Rocket 3 RS1† Safir 1 1A 1B Saturn I IB V Scout X-1 Blue Scout II† X-2† X-2M X-3 X-3M X-4 X-2B† B A B-1 D-1 A-1 E-1 F-1 G-1 Shavit original 1 SLV Space Shuttle SPARK† Sparta SS-520 Start-1 Terran 1† Thor Able Ablestar 1 2 Agena A B D Burner 1 2 Delta DSV-2U Thorad-Agena SLV-2G SLV-2H Titan II GLV IIIA IIIB IIIC IIID IIIE 34D 23G CT-3 IV Tsyklon R-36-O original 2 3 Universal Rocket UR-500 Proton Proton-K Rokot Strela Vanguard Vega original VLS-1† Zenit 2 2M 2FG 3SL 3SLB 3F Zhuque 1† 2
Classes	Sounding rocket Small-lift launch vehicle Medium-lift launch vehicle Heavy-lift launch vehicle Super heavy-lift launch vehicle
This template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future Symbol † indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)