Long March 2D
Rendering of Long March 2D. | |
| Function | Carrier rocket |
|---|---|
| Manufacturer | SAST |
| Country of origin | China |
| Cost per launch | US$30 million |
| Size | |
| Height | 41.056 m (134.70 ft) |
| Diameter | 3.35 m (11.0 ft) |
| Mass | 232,250 kg (512,020 lb) |
| Stages | 2 |
| Capacity | |
| Payload to LEO | |
| Mass | 3,500 kg (7,700 lb) |
| Payload to SSO | |
| Mass | 1,300 kg (2,900 lb) |
| Associated rockets | |
| Family | Long March |
| Launch history | |
| Status | Active |
| Launch sites | LA-2/138 and LA-4/SLS-2, JSLC LA-9, TSLC LA-3, XSLC |
| Total launches | 99 |
| Success(es) | 98 |
| Partial failure(s) | 1 |
| First flight | 9 August 1992 |
| Last flight | 14 June 2025 |
| First stage | |
| Height | 27.91 m |
| Diameter | 3.35 m |
| Propellant mass | 182,000 kg (401,000 lb) |
| Powered by | 4 YF-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 | 1 YF-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 (300.0 s) (Main) 2,834 m/s (289.0 s) (Vernier) |
| Propellant | N2O4 / UDMH |
| Third stage (optional) – YZ-3 | |
| 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 2D (Chinese: 长征二号丁火箭), also known as the Chang Zheng 2D, CZ-2D, and LM-2D, is a Chinese two-stage orbital carrier rocket mainly used for launching LEO and SSO satellites. It is manufactured by the Shanghai Academy of Spaceflight Technology (SAST).
It is mainly launched from areas LA-2B and LA-4 at the Jiuquan Satellite Launch Center. The Long March 2D made its maiden flight on 9 August 1992. It was initially used to launch FSW-2 and FSW-3 reconnaissance satellites. More recently it has also launched from LA-9 TSLC and LA-3 XSLC.
Unlike all other members of the Long March 2 rocket family, the Long March 2D is a two-stage version of the Long March 4 launch vehicle.