Rendering of Long March 4C
Function	Medium-lift launch vehicle
Manufacturer	Shanghai Academy of Spaceflight Technology
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 toLEO
Mass	4,200 kg (9,300 lb)[2]
Payload toSSO
Mass	2,800 kg (6,200 lb)[2]
Payload toGTO
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	58
Success(es)	56
Failure	2
First flight	26 April 2006
Last flight	26 September 2025(most recent)
First stage
Height	27.91 m
Diameter	3.35 m
Propellant mass	182,000 kg (401,000 lb)
Powered by	4YF-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	1YF-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	2YF-40A
Maximum thrust	100.85 kN (22,670 lbf)
Specific impulse	2,971 m/s (9,750 ft/s)
Propellant	N2O4 /UDMH
[edit on Wikidata]

TheLong March 4C, also known as theChang Zheng 4C,CZ-4C andLM-4C, previously designatedLong March 4B-II, is a Chineseorbitallaunch vehicle. It is launched from theJiuquan,Taiyuan, andXichang Satellite Launch Centers, and consists of 3 stages. All stages use storable (rather than cryogenic) propellants.

The Long March 4C is derived from the 3 stageLong March 4B, but features a restartablethird stage, and a larger payload fairing.

Long March 4C vehicles have been used to launch theYaogan-1,Yaogan-3synthetic-aperture radar (SAR) satellites and theFengyun-3A polar orbitingmeteorological satellite. On 15 December 2009, a Long March 4C was used to launchYaogan-8.^[3]

Because it was still designated as Long March 4B-II at the time of its maiden flight, the first launch is often mistaken for aLong March 4B.

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

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

• CZ-4C Long March Space Launch Vehicle GlobalSecurity.org

• Long March (rocket family)
• Spacecraft launched in 2006
• 2006 in spaceflight
• 2006 in China
• Vehicles introduced in 2006

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• Short description is different from Wikidata
• Use British English from January 2021
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• Use dmy dates from January 2021