Long March 3

Rendering of Long March 3
FunctionCarrier rocket
ManufacturerCALT
Country of originChina
Size
Height43.25 metres (141.9 ft)[1]
Diameter3.35 metres (11.0 ft)[1]
Mass204,000 kilograms (450,000 lb)[1]
Stages3
Capacity
Payload to LEO
Mass5,000 kilograms (11,000 lb)[2]
Payload to GTO
Mass1,500 kilograms (3,300 lb)[2]
Associated rockets
FamilyLong March
Derivative workLong March 3A
Launch history
StatusRetired
Launch sitesLA-3, XSLC
Total launches13
Success(es)10
Failure(s)2
Partial failure(s)1
First flight29 January 1984
Last flight25 June 2000
First stage
Height23.49 m
Diameter3.35 m
Empty mass9,378 kg (20,675 lb)
Gross mass153,070 kg (337,460 lb)
Propellant mass143,692 kg (316,787 lb)
Powered by4 YF-21B
Maximum thrust2,961.6 kN (665,800 lbf)
Specific impulse2,556.2 m/s (260.66 s)
Burn time121 s
PropellantN2O4 / UDMH
Second stage
Height9.47 m
Diameter3.35 m
Empty mass3,599 kg (7,934 lb)
Gross mass39,440 kg (86,950 lb)
Propellant mass35,841 kg (79,016 lb)
Powered by1 YF-24D
(1 x YF-22D (Main))
(4 x YF-23F (Vernier))
Maximum thrust741.4 kN (166,700 lbf) (Main)
47.1 kN (10,600 lbf) (Vernier)
Specific impulse2,922.4 m/s (298.00 s) (Main)
2,762 m/s (281.6 s) (Vernier)
Burn time130 s
PropellantN2O4 / UDMH
Third stage
Height10.36 m
Diameter2.25 m
Empty mass1,965 kg (4,332 lb)
Gross mass10,700 kg (23,600 lb)
Propellant mass8,731 kg (19,249 lb)
Powered by1 YF-73
Maximum thrust44.43 kN (9,990 lbf)
Specific impulse4,119 m/s (420.0 s)
Burn time729 s
PropellantLH2 / LOX

The Long March 3 (Chinese: 长征三号火箭), also known as the Changzheng 3, CZ-3 and LM-3, was a Chinese orbital carrier rocket design. They were all launched from Launch Area 3 at the Xichang Satellite Launch Center. It was a three-stage rocket, and was mostly used to place DFH-2-class communications satellites into geosynchronous transfer orbits. It was complemented and later replaced by the more powerful Long March 3A, which has an improved third stage.

  1. ^ a b c Mark Wade. "CZ-3". Encyclopedia Astronautica. Archived from the original on 2008-06-01. Retrieved 2008-04-27.
  2. ^ a b Gunter Krebs. "CZ-3 (Chang Zheng-3)". Gunter's Space Page. Retrieved 2008-04-27.