Long March 3C
Rendering of Long March 3C | |
| Function | Launch vehicle |
|---|---|
| Manufacturer | CALT |
| Country of origin | China |
| Size | |
| Height |
|
| Diameter | 3.35 m (11.0 ft) |
| Mass | 345,000 kg (761,000 lb) |
| Stages | 3 |
| Capacity | |
| Payload to LEO | |
| Mass | 3C: 8,000 kg (18,000 lb) 3C/E: 8,000 kg (18,000 lb) |
| Payload to GTO | |
| Mass | 3C: 3,800 kg (8,400 lb) 3C/E: 3,900 kg (8,600 lb) |
| Payload to HCO | |
| Mass | 2,400 kg (5,300 lb) |
| Associated rockets | |
| Family | Long March |
| Launch history | |
| Status | Active |
| Launch sites | XSLC, LA-2 and LA-3 |
| Total launches |
|
| Success(es) |
|
| First flight |
|
| Last flight |
|
| Carries passengers or cargo | |
| Boosters (3C) | |
| No. boosters | 2 |
| Height | 15.33 m (50.3 ft) |
| Diameter | 2.25 m (7 ft 5 in) |
| Propellant mass | 37,700 kg (83,100 lb) |
| Powered by | 1 YF-25 |
| Maximum thrust | 740.4 kN (166,400 lbf) |
| Specific impulse | 2,556.2 m/s (8,386 ft/s) |
| Burn time | 127 seconds |
| Propellant | N2O4 / UDMH |
| Boosters (3C/E) | |
| No. boosters | 2 |
| Height | 16.1 m (53 ft) |
| Diameter | 2.25 m (7 ft 5 in) |
| Propellant mass | 41,100 kg (90,600 lb) |
| Powered by | 1 YF-25 |
| Maximum thrust | 740.4 kN (166,400 lbf) |
| Specific impulse | 2,556.2 m/s (8,386 ft/s) |
| Burn time | 140 seconds |
| Propellant | N2O4 / UDMH |
| First stage (3C) | |
| Height | 23.27 m (76.3 ft) |
| Diameter | 3.35 m (11.0 ft) |
| Propellant mass | 171,800 kg (378,800 lb) |
| Powered by | 4 YF-21C |
| Maximum thrust | 2,961.6 kN (665,800 lbf) |
| Specific impulse | 2,556.5 m/s (8,387 ft/s) |
| Burn time | 145 seconds |
| Propellant | N2O4 / UDMH |
| First stage (3C/E) | |
| Height | 24.76 m (81.2 ft) |
| Diameter | 3.35 m (11.0 ft) |
| Propellant mass | 186,200 kg (410,500 lb) |
| Powered by | 4 YF-21C |
| Maximum thrust | 2,961.6 kN (665,800 lbf) |
| Specific impulse | 2,556.5 m/s (8,387 ft/s) |
| Burn time | 158 seconds |
| Propellant | N2O4 / UDMH |
| Second stage | |
| Height | 12.92 m (42.4 ft) |
| Diameter | 3.35 m (11.0 ft) |
| Propellant mass | 49,400 kg (108,900 lb) |
| Powered by | 1 YF-24E (YF-22E (Main) 4 x YF-23C (Vernier)) |
| Maximum thrust | 742 kN (167,000 lbf) (Main) 47.1 kN (10,600 lbf) (Vernier) |
| Specific impulse | 2,922.57 m/s (9,588.5 ft/s) (Main) 2,910.5 m/s (9,549 ft/s) (Vernier) |
| Burn time | 185 seconds |
| Propellant | N2O4 / UDMH |
| Third stage | |
| Height | 12.38 m (40.6 ft) |
| Diameter | 3.0 m (9.8 ft) |
| Propellant mass | 18,200 kg (40,100 lb) |
| Powered by | 2 × YF-75 |
| Maximum thrust | 167.17 kN (37,580 lbf) |
| Specific impulse | 4,295 m/s (14,090 ft/s) |
| Burn time | 487 seconds |
| Propellant | LH2 / LOX |
| Fourth stage (optional) – YZ-1 | |
| Powered by | 1 × YF-50D |
| Maximum thrust | 6.5 kN (1,500 lbf) |
| Specific impulse | 315.5 s (3.094 km/s) |
| Propellant | N2O4 / UDMH |
The Long March 3C (simplified Chinese: 长征三号丙火箭; traditional Chinese: 長征三號丙火箭; pinyin: Chángzhēng Sānhào Bǐng Huǒjiàn), also known as the Changzheng 3C, CZ-3C and LM-3C, is a Chinese orbital launch vehicle. It is launched from Launch Complex 2 and 3 at the Xichang Satellite Launch Center (XSLC). A three-stage rocket with two strapon liquid rocket boosters, it is a member of the Long March 3 rocket family, and was derived from the Long March 3B. It was designed to fill a gap in payload capacities between the Long March 3A and 3B.