Engineering:Long March 4C

From HandWiki
Short description: Chinese orbital launch vehicle

Long March 4C
Rendering of Long March 4C
FunctionMedium-lift launch vehicle
ManufacturerShanghai Academy of Spaceflight Technology
Country of originChina
Size
Height45.8 m (150 ft)[1]
Diameter3.35 m (11.0 ft)
Mass250,000 kg (550,000 lb)
Stages3
Capacity
Payload to LEO4,200 kg (9,300 lb)[2]
Payload to SSO2,800 kg (6,200 lb)[2]
Payload to GTO1,500 kg (3,300 lb)[2]
Associated rockets
FamilyLong March
Launch history
StatusActive
Launch sitesTSLC, LA-7, LA-9
JSLC, LA-4/SLS-2
XSLC, LA-3
Total launches58
Successes56
Failures2
First flight26 April 2006
Last flight26 September 2025 (most recent)
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 (8,400 ft/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 (9,650 ft/s) (Main)
2,834 m/s (9,300 ft/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 (9,750 ft/s)
FuelN2O4 / UDMH

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. All stages use storable (rather than cryogenic) propellants.

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

Launch summary

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]

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.

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

Script error: No such module "Chart".

List of launches

See also

References

de:Langer Marsch 4