Long March 4C

The Long March 4C, also known as the Chang Zheng 4C, CZ-4C and LM-4C, previously designated Long March 4B-II, is a Chinese orbital launch vehicle. It is launched from the Jiuquan, Taiyuan, and Xichang Satellite Launch Centers, and consists of 3 stages. Long March 4C vehicles have been used to launch the Yaogan-1, Yaogan-3 synthetic-aperture radar (SAR) satellites and the Fengyun-3A polar orbiting meteorological satellite. On 15 December 2009, a Long March 4C was used to launch Yaogan-8.^[3]

Rendering of Long March 4C
Function	Launch vehicle
Manufacturer	SAST
Country of origin	China
Size
Height	45.8 m (150 ft)[1]
Diameter	3.35 m (11.0 ft)
Mass	250,000 kg (550,000 lb)
Stages	3
Capacity
Payload to LEO
Mass	4,200 kg (9,300 lb)[2]
Payload to SSO
Mass	2,800 kg (6,200 lb)[2]
Payload to GTO
Mass	1,500 kg (3,300 lb)[2]
Associated rockets
Family	Long March
Launch history
Status	Active
Launch sites	TSLC, LA-7, LA-9 JSLC, LA-4/SLS-2 XSLC, LA-3
Total launches	56
Success(es)	54
Failure(s)	2
First flight	26 April 2006
Last flight	3 July 2025 (most recent)
First stage
Height	27.91 m
Diameter	3.35 m
Propellant mass	182,000 kg (401,000 lb)
Powered by	4 YF-21C
Maximum thrust	2,961.6 kN (665,800 lbf)
Specific impulse	2,550 m/s (8,400 ft/s)
Propellant	N2O4 / UDMH
Second stage
Height	10.9 m
Diameter	3.35 m
Propellant mass	52,700 kg (116,200 lb)
Powered by	1 YF-24C (1 x YF-22C (Main)) (4 x YF-23C (Vernier))
Maximum thrust	742.04 kN (166,820 lbf) (Main) 47.1 kN (10,600 lbf) (Vernier)
Specific impulse	2,942 m/s (9,650 ft/s) (Main) 2,834 m/s (9,300 ft/s) (Vernier)
Propellant	N2O4 / UDMH
Third stage
Height	14.79 m
Diameter	2.9 m
Propellant mass	14,000 kg (31,000 lb)
Powered by	2 YF-40A
Maximum thrust	100.85 kN (22,670 lbf)
Specific impulse	2,971 m/s (9,750 ft/s)
Propellant	N2O4 / UDMH

Because it was still designated as Long March 4B-II at the time of its maiden flight, the first launch is often mistaken for a Long March 4B. The Long March 4C is derived from the Long March 4B, but features a restartable upper stage, and a larger payload fairing.

On 1 September 2016, the Long March 4C failed for reasons not yet known. A Long March 4C rocket blasted off from the Taiyuan Satellite Launch Center in Shanxi but failed to insert its payload, the Gaofen 10 satellite, into its designated orbit.^[4][5]

Launch statistics

1

2

3

4

5

6

7

8

9

2006

2010

2015

2020

2025

•   Failure
•   Partial failure
•   Success
•   Planned

List of launches

Main article: List of Long March launches

Flight number	Serial number	Date (UTC)	Launch site	Payload	Orbit	Result
1	Y1	26 April 2006 22:48	TSLC, LA-7	Yaogan 1	SSO	Success
2	Y3	11 November 2007 22:48	TSLC, LA-7	Yaogan 3	SSO	Success
3	Y2	27 May 2008 03:02	TSLC, LA-7	Fengyun 3A	SSO	Success
4	Y4	15 December 2009 02:31	TSLC, LA-9	Yaogan 8 Xiwang 1	SSO	Success
5	Y5	5 March 2010 04:55	JSLC, SLS-2	Yaogan 9A Yaogan 9B Yaogan 9C	LEO	Success
6	Y6	9 August 2010 22:49	TSLC, LA-9	Yaogan 10	SSO	Success
7	Y7	4 November 2010 18:37	TSLC, LA-9	Fengyun 3B	SSO	Success
8	Y10	29 May 2012 07:31	TSLC, LA-9	Yaogan 15	SSO	Success
9	Y9	25 November 2012 04:06	JSLC, SLS-2	Yaogan 16A Yaogan 16B Yaogan 16C	LEO	Success
10	Y11	19 July 2013 23:37	TSLC, LA-9	Shijian 15 Shiyan 7 Chuangxin-3	SSO	Success
11	Y13	1 September 2013 19:16	JSLC, SLS-2	Yaogan 17A Yaogan 17B Yaogan 17C	LEO	Success
12	Y12	23 September 2013 03:07	TSLC, LA-9	Fengyun 3C	SSO	Success
13	Y14	20 November 2013 03:31	TSLC, LA-9	Yaogan 19	SSO	Success
14	Y15	9 August 2014 05:45	JSLC, SLS-2	Yaogan 20A Yaogan 20B Yaogan 20C	LEO	Success
15	Y16	20 October 2014 06:31	TSLC, LA-9	Yaogan 22	SSO	Success
16	Y17	10 December 2014 19:33	JSLC, SLS-2	Yaogan 25A Yaogan 25B Yaogan 25C	LEO	Success
17	Y18	27 August 2015 02:31	TSLC, LA-9	Yaogan 27	SSO	Success
18	Y8	26 November 2015 21:24	TSLC, LA-9	Yaogan 29	SSO	Success
19	Y19	9 August 2016 22:55	TSLC, LA-9	Gaofen 3	SSO	Success
20	Y22	31 August 2016 18:50	TSLC, LA-9	Gaofen 10	SSO	Failure[4]
21	Y21	14 November 2017 18:35	TSLC, LA-9	Fengyun 3D HEAD-1	SSO	Success
22	Y26	31 March 2018 03:22	TSLC, LA-9	Gaofen-1 02 Gaofen-1 03 Gaofen-1 04	SSO	Success
23	Y25	10 April 2018 04:25	JSLC, SLS-2	Yaogan 31-01A Yaogan 31-01B Yaogan 31-01C	LEO	Success
24	Y20	8 May 2018 18:28	TSLC, LA-9	Gaofen 5	SSO	Success
25	Y27	20 May 2018 21:28	XSLC, LA-3	Queqiao Longjiang-1 Longjiang-2	Earth–Moon L2	Success
26	Y23	22 May 2019 22:49	TSLC, LA-9	Yaogan 33	SSO	Failure[6]
27	Y33	4 October 2019 18:51	TSLC, LA-9	Gaofen 10(R)	SSO	Success
28	Y24	27 November 2019 23:52	TSLC, LA-9	Gaofen 12	SSO	Success
29	Y35	27 December 2020 15:44	JSLC, SLS-2	Yaogan 33(R)	SSO	Success
30	Y31	29 January 2021 04:47	JSLC, SLS-2	Yaogan 31-02A Yaogan 31-02B Yaogan 31-02C	LEO	Success
31	Y32	24 February 2021 02:22	JSLC, SLS-2	Yaogan 31-03A Yaogan 31-03B Yaogan 31-03C	LEO	Success
32	Y42	13 March 2021 02:19	JSLC, SLS-2	Yaogan 31-04A Yaogan 31-04B Yaogan 31-04C	LEO	Success
33	Y36	30 March 2021 22:45	JSLC, SLS-2	Gaofen 12-02	SSO	Success
34	Y34	30 April 2021 07:27	JSLC, SLS-2	Yaogan 34	LEO	Success
35	Y43	4 July 2021 23:28	JSLC, SLS-2	Fengyun 3E	SSO	Success
36	Y40	7 September 2021 03:01	TSLC, LA-9	Gaofen 5-02	SSO	Success
37	Y37	22 November 2021 23:45	JSLC, SLS-2	Gaofen 3-02	SSO	Success
38	Y39	26 December 2021 03:11	TSLC, LA-9	Ziyuan I-02E XW-3 (CAS-9)	SSO	Success
39	Y29	25 January 2022 23:44	JSLC, SLS-2	Ludi Tance-1 01A	SSO	Success
40	Y30	26 February 2022 23:44	JSLC, SLS-2	Ludi Tance-1 01B	SSO	Success
41	Y47	17 March 2022 07:09	JSLC, SLS-2	Yaogan 34-02	LEO	Success
42	Y38	6 April 2022 23:47	JSLC, SLS-2	Gaofen 3-03	SSO	Success
43	Y28	15 April 2022 18:16	TSLC, LA-9	Daqi-1 (AEMS)	SSO	Success
44	Y46	27 June 2022 15:46	JSLC, SLS-2	Gaofen 12-03	SSO	Success
45	Y52	2 September 2022 23:44	JSLC, SLS-2	Yaogan 33-02	SSO	Success
46	Y48	15 November 2022 01:38	JSLC, SLS-2	Yaogan 34-03	LEO	Success
47	Y57	12 December 2022 08:22	JSLC, SLS-2	Shiyan-20A Shiyan-20B	LEO	Success
48	Y51	9 March 2023 22:41	TSLC, LA-9	Tianhui-6A Tianhui-6B	SSO	Success
49	Y49	31 March 2023 06:27	JSLC, SLS-2	Yaogan 34-04	LEO	Success
50	Y44	3 August 2023 03:47	JSLC, SLS-2	Fengyun 3F	SSO	Success
51	Y56	20 August 2023 17:45	JSLC, SLS-2	Gaofen 12-04	SSO	Success
52	Y53	6 September 2023 18:14	JSLC, SLS-2	Yaogan 33-03	SSO	Success
53	Y54	26 September 2023 20:15	JSLC, SLS-2	Yaogan 33-04	SSO	Success
54	Y50	11 May 2024 23:43	JSLC, SLS-2	Shiyan-23	SSO	Success
55	Y59	15 October 2024 23:45	JSLC, SLS-2	Gaofen 12-05	SSO	Success
56	Y63	3 July 2025 09:35	XSLC, LA-3	Shiyan-28B 01	LEO	Success

See also

• Long March 4B
• Long March (rocket family)
• Medium-lift launch vehicle