Long March 2D

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).

Long March 2D
Long March 2D launch of VRSS-1 in September 2012
FunctionCarrier rocket
ManufacturerSAST
Country of originChina
Cost per launchUS$30 million
Size
Height41.056 m (134.70 ft)
Diameter3.35 m (11.0 ft)
Mass232,250 kg (512,020 lb)
Stages2
Capacity
Payload to LEO
Mass3,500 kg (7,700 lb)
Payload to SSO
Mass1,300 kg (2,900 lb)
Associated rockets
FamilyLong March
Launch history
StatusActive
Launch sitesLA-2/138 and LA-4/SLS-2, JSLC
LA-9, TSLC
LA-3, XSLC
Total launches85
Success(es)84
Partial failure(s)1
First flight9 August 1992
Last flight10 December 2023
First stage
Height27.91 m
Diameter3.35 m
Propellant mass182,000 kg (401,000 lb)
Powered by4 YF-21C
Maximum thrust2,961.6 kN (665,800 lbf)
Specific impulse2,550 m/s (8,400 ft/s)
PropellantN2O4 / UDMH
Second stage
Height10.9 m
Diameter3.35 m
Propellant mass52,700 kg (116,200 lb)
Powered by1 YF-24C
(1 x YF-22C (Main))
(4 x YF-23C (Vernier))
Maximum thrust742.04 kN (166,820 lbf) (Main)
47.1 kN (10,600 lbf) (Vernier)
Specific impulse2,942 m/s (300.0 s) (Main)
2,834 m/s (289.0 s) (Vernier)
PropellantN2O4 / UDMH
Third stage (optional) – YZ-3
PropellantN2O4 / UDMH

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.

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.

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