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 carrier rocket. It is launched from the Jiuquan, Taiyuan Satellite Launch Centre and Xichangs, and consists of 3 stages. Long March 4C vehicles have been used to launch the Yaogan-1, Yaogan-3 SAR satellites and the Fengyun-3A polar orbiting meteorological satellite. On December 15, 2009 a Long March 4C was used to launch Yaogan 8.[3]

Long March 4C
Long March 4C
FunctionCarrier rocket
ManufacturerSAST
Country of originChina
Size
Height45.8 metres (150 ft)[1]
Diameter3.35 metres (11.0 ft)[1]
Mass250,000 kilograms (550,000 lb)[1]
Stages3
Capacity
Payload to LEO4,200 kilograms (9,300 lb)[2]
Payload to SSO2,800 kilograms (6,200 lb)[2]
Payload to GTO1,500 kilograms (3,300 lb)[2]
Associated rockets
FamilyLong March
Launch history
StatusActive
Launch sitesLA-7 & LA-9, TSLC
LA-4/SLS-2, JSLC
LA-3, XSLC
Total launches28
Successes26
Failures2
First flight26 April 2006
First stage
Length27.91 m
Diameter3.35 m
Propellant mass182,000 kg (401,000 lb)
Engines4 YF-21C
Thrust2,961.6 kN (665,800 lbf)
Specific impulse2,550 m/s (260 s)
FuelN2O4 / UDMH
Second stage
Length10.9 m
Diameter3.35 m
Propellant mass52,700 kg (116,200 lb)
Engines1 YF-24C
(1 x YF-22C (Main))
(4 x YF-23C (Vernier))
Thrust742.04 kN (166,820 lbf) (Main)
47.1 kN (10,600 lbf) (Vernier)
Specific impulse2,942 m/s (300.0 s) (Main)
2,834 m/s (289.0 s) (Vernier)
FuelN2O4 / UDMH
Third stage
Length14.79 m
Diameter2.9 m
Propellant mass14,000 kg (31,000 lb)
Engines2 YF-40A
Thrust100.85 kN (22,670 lbf)
Specific impulse2,971 m/s (303.0 s)
FuelN2O4 / 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 September 1, 2016, the Long March-4C (Chang Zheng-4C) failed for reasons not yet known. A Long March 4C rocket blasted off from the Taiyuan Satellite Launch Centre in Shanxi but failed to insert its payload, the Gaofen-10 satellite, into its designated orbit.[4][5]

List of launches
Main article: List of Long March launches
Flight number Date (UTC) Launch site Payload Orbit Result
1 April 26, 2006
22:48		 LA-7, TSLC Yaogan 1 SSO Success
2 November 11, 2007
22:48		 LA-7, TSLC Yaogan 3 SSO Success
3 May 27, 2008
03:02		 LA-7, TSLC Fengyun 3A SSO Success
4 December 15, 2009
02:31		 LA-9, TSLC Yaogan 8
Xiwang 1		 SSO Success
5 March 5, 2010
04:55		 LA-4/SLS-2, JSLC Yaogan 9A
Yaogan 9B
Yaogan 9C		 LEO Success
6 August 9, 2010
22:49		 LA-9, TSLC Yaogan 10 SSO Success
7 November 4, 2010
18:37		 LA-9, TSLC Fengyun 3B SSO Success
8 May 29, 2012
07:31		 LA-9, TSLC Yaogan 15 SSO Success
9 November 25, 2012
04:06		 LA-4/SLS-2, JSLC Yaogan 16A
Yaogan 16B
Yaogan 16C		 LEO Success
10 July 19, 2013
23:37		 LA-9, TSLC Shijian 15
Shiyan-7
Chuangxin-3		 SSO Success
11 September 1, 2013
19:16		 LA-4/SLS-2, JSLC Yaogan 17A
Yaogan 17B
Yaogan 17C		 LEO Success
12 September 23, 2013
03:07		 LA-9, TSLC Fengyun 3C SSO Success
13 November 20, 2013
03:31		 LA-9, TSLC Yaogan 19 SSO Success
14 August 9, 2014
05:45		 LA-4/SLS-2, JSLC Yaogan 20A
Yaogan 20B
Yaogan 20C		 LEO Success
15 October 20, 2014
06:31		 LA-9, TSLC Yaogan 22 SSO Success
16 December 10, 2014
19:33		 LA-4/SLS-2, JSLC Yaogan 25A
Yaogan 25B
Yaogan 25C		 LEO Success
17 August 27, 2015
02:31		 LA-9, TSLC Yaogan 27 SSO Success
18 November 26, 2015
21:24		 LA-9, TSLC Yaogan 29 SSO Success
19 August 9, 2016
22:55		 LA-9, TSLC Gaofen 3 SSO Success
20 August 31, 2016
18:50		 LA-9, TSLC Gaofen 10 SSO Failure
21 November 14, 2017
18:35		 LA-9, TSLC Fengyun 3D
HEAD-1		 SSO Success
22 March 31, 2018
03:22		 LA-9, TSLC Gaofen-1 02
Gaofen-1 03
Gaofen-1 04		 SSO Success
23 April 10, 2018
04:25		 LA-4/SLS-2, JSLC Yaogan 31-01A
Yaogan 31-01B
Yaogan 31-01C		 LEO Success
24 May 8, 2018
18:28		 LA-9, TSLC Gaofen 5 SSO Success
25 May 20, 2018
21:28		 LA-3, XSLC Queqiao (Chang'e 4 relay satellite)
Longjiang-1
Longjiang-2		 Earth–Moon L2 Success
26 May 22, 2019
22:49		 LA-9, TSLC Yaogan 33 SSO Failure[6]
27 October 4, 2019
18:51		 LA-9, TSLC Gaofen 10-2 SSO Success
28 November 27, 2019
23:52		 LA-9, TSLC Gaofen 12 SSO Success

References
  1. Brian Harvey (2013). China in Space: The Great Leap Forward. Springer Science & Business Media. p. 96. ISBN 978-1-4614-5043-6.
  2. Gunter Krebs. "CZ-4C (Chang Zheng-4C)". Gunter's Space Page. Retrieved 2008-04-27.
  3. Rui C. Barbosa (15 December 2009). "China completes 2009 schedule by launching another spy satellite". NASASpaceFlight.com.
  4. Stephen Chen (2 September 2016). "Chinese rocket launch reported to have failed, destroying cutting-edge earth observation satellite". South China Morning Post. Retrieved 2 September 2016.
  5. Rui C. Barbosa (2 September 2016). "Long March 4C apparently fails during Gaofen-10 launch". NASASpaceFlight.com. Retrieved 2 September 2016.
  6. "Launch of Yaogan-33 satellite fails in north China". Retrieved 23 May 2019.


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