Long March 2D
 Rendering of Long March 2D. | |
| Function | Medium-lift launch vehicle |
|---|---|
| Manufacturer | Shanghai Academy of Spaceflight Technology |
| 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 | 105 |
| Success(es) | 104 |
| Partial failure | 1 |
| First flight | 9 August 1992 |
| Last flight | 30 May 2026 (most recent) |
| 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).
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.
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.