Long March 3A

The Long March 3A (Chinese: 长征三号甲火箭), also known as the Chang Zheng 3A, CZ-3A and LM-3A, is a Chinese orbital carrier rocket design. It is a 3-stage rocket, and is usually used to place communications satellites and Beidou navigation satellites into geosynchronous transfer orbits.

For the similarly-named submachine gun, see CZ Scorpion Evo 3 A1.
Rendering of Long March 3A
FunctionCarrier rocket
ManufacturerCALT
Country of originChina
Cost per launchUS$70 million
Size
Height52.52 metres (172.3 ft)
Diameter3.35 metres (11.0 ft)
Mass241,000 kilograms (531,000 lb)
Stages3
Capacity
Payload to LEO
Mass8,500 kilograms (18,700 lb)
Payload to GTO
Mass2,600 kilograms (5,700 lb)
Payload to HCO
Mass1,600 kilograms (3,500 lb)
Associated rockets
FamilyLong March
Derivative workLong March 3B
Long March 3C
Launch history
StatusActive
Launch sitesLA-2 & LA-3, XSLC
Total launches27
Success(es)27
First flight8 February 1994
Last flight9 July 2018
First stage
Height23.272 m
Diameter3.35 m
Propellant mass171,800 kg (378,800 lb)
Powered by4 YF-21C
Maximum thrust2,961.6 kN (665,800 lbf)
Specific impulse2,556.5 m/s (260.69 s)
Burn time148 s
PropellantN2O4 / UDMH
Second stage
Height11.276 m
Diameter3.35 m
Propellant mass32,600 kg (71,900 lb)
Powered by1 YF-24E
(1 x YF-22E (Main))
(4 x YF-23C (Vernier))
Maximum thrust742 kN (167,000 lbf) (Main)
47.1 kN (10,600 lbf) (Vernier)
Specific impulse2,922.57 m/s (298.019 s) (Main)
2,910.5 m/s (296.79 s) (Vernier)
Burn time115 s
PropellantN2O4 / UDMH
Third stage
Height12.375 m
Diameter3.0 m
Propellant mass18,200 kg (40,100 lb)
Powered by2 YF-75
Maximum thrust167.17 kN (37,580 lbf)
Specific impulse4,295 m/s (438.0 s)
Burn time475 s
PropellantLH2 / LOX

It has formed the basis of the Long March 3B, which is a heavier version with four liquid booster rockets.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.