Long March 4C
Long March 4C
|
|
| Function | Carrier rocket |
|---|---|
| Manufacturer | SAST |
| Country of origin | China |
| Size | |
| Height | 45.8 metres (150 ft) |
| Diameter | 3.35 metres (11.0 ft) |
| Mass | 250,000 kilograms (550,000 lb) |
| Stages | 3 |
| Capacity | |
| Payload to LEO | 4,200 kilograms (9,300 lb) |
| Payload to SSO | 2,800 kilograms (6,200 lb) |
| Payload to GTO | 1,500 kilograms (3,300 lb) |
| Associated rockets | |
| Family | Long March |
| Launch history | |
| Status | Active |
| Launch sites |
LA-7 & LA-9, TSLC LA-4/SLS-2, JSLC |
| Total launches | 20 |
| Successes | 19 |
| Failures | 1 |
| First flight | 26 April 2006 |
| First stage | |
| Length | 27.91 m |
| Diameter | 3.35 m |
| Propellant mass | 182,000 kg (401,000 lb) |
| Engines | 4 YF-21C |
| Thrust | 2,961.6 kN (665,800 lbf) |
| Specific impulse | 2,550 m/s (260 s) |
| Fuel | N2O4/UDMH |
| Second stage | |
| Length | 10.9 m |
| Diameter | 3.35 m |
| Propellant mass | 52,700 kg (116,200 lb) |
| Engines | 1 YF-24C (1 x YF-22C (Main)) (4 x YF-23C (Vernier)) |
| Thrust | 742.04 kN (166,820 lbf) (Main) 47.1 kN (10,600 lbf) (Vernier) |
| Specific impulse | 2,942 m/s (300.0 s) (Main) 2,834 m/s (289.0 s) (Vernier) |
| Fuel | N2O4/UDMH |
| Third stage | |
| Length | 14.79 m |
| Diameter | 2.9 m |
| Propellant mass | 14,000 kg (31,000 lb) |
| Engines | 2 YF-40A |
| Thrust | 100.85 kN (22,670 lbf) |
| Specific impulse | 2,971 m/s (303.0 s) |
| Fuel | N2O4/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 carrier rocket. It is launched from the Jiuquan and Taiyuan Satellite Launch Centres, 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.
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.
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Wikipedia