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Chang Zheng 3A
Part of CZ Family
CZ-3A
CZ-3A
Chinese three-stage orbital launch vehicle. The Long March 3A, by incorporating the mature technologies of the CZ-3 and adding a more powerful cryogenic third stage and more capable control system, had a greater geosynchronous transfer orbit capability, greater flexibility for attitude control, and better adaptability to a variety of launch missions.

AKA: Chang Zheng-3A;CZ-3A;Long March 3A. Status: Active. First Launch: 1994-02-08. Last Launch: 2016-03-29. Number: 25 . Payload: 7,200 kg (15,800 lb). Thrust: 2,960.00 kN (665,430 lbf). Gross mass: 241,000 kg (531,000 lb). Height: 52.50 m (172.20 ft). Diameter: 3.35 m (10.99 ft). Apogee: 200 km (120 mi).

The CZ-3A's geosynchronous transfer orbit payload capability was 2,700kg. By June 30, 1998, the CZ-3A had made three consecutive successful launches, and was offered to international customers.

LEO Payload: 7,200 kg (15,800 lb) to a 200 km orbit at 28.50 degrees. Payload: 2,600 kg (5,700 lb) to a GTO. Launch Price $: 55.000 million in 1999 dollars.

Stage Data - CZ-3A

  • Stage 1. 1 x CZ-3A-1. Gross Mass: 179,000 kg (394,000 lb). Empty Mass: 9,000 kg (19,800 lb). Thrust (vac): 3,265.143 kN (734,033 lbf). Isp: 289 sec. Burn time: 155 sec. Isp(sl): 259 sec. Diameter: 3.35 m (10.99 ft). Span: 7.00 m (22.90 ft). Length: 23.08 m (75.72 ft). Propellants: N2O4/UDMH. No Engines: 4. Engine: YF-20B. Other designations: L-180. Status: In Production.
  • Stage 2. 1 x CZ-3A-2. Gross Mass: 33,600 kg (74,000 lb). Empty Mass: 4,000 kg (8,800 lb). Thrust (vac): 831.005 kN (186,817 lbf). Isp: 297 sec. Burn time: 110 sec. Isp(sl): 260 sec. Diameter: 3.35 m (10.99 ft). Span: 3.35 m (10.99 ft). Length: 11.53 m (37.82 ft). Propellants: N2O4/UDMH. No Engines: 1. Engine: YF-25/23. Other designations: L-35. Status: In Production.
  • Stage 3. 1 x CZ-3A-3. Gross Mass: 21,000 kg (46,000 lb). Empty Mass: 2,800 kg (6,100 lb). Thrust (vac): 156.000 kN (35,070 lbf). Isp: 440 sec. Burn time: 470 sec. Diameter: 3.00 m (9.80 ft). Span: 3.00 m (9.80 ft). Length: 12.38 m (40.60 ft). Propellants: Lox/LH2. No Engines: 2. Engine: YF-75. Other designations: H-18. Status: In Production.


More at: Chang Zheng 3A.

Family: orbital launch vehicle. Country: China. Engines: YF-25/23, YF-20B, YF-75. Spacecraft: Beidou-IGSO, Beidou-MEO, SJ, DFH-3, FY-2, FH-1, Beidou, Chang'e. Projects: Chinastar. Launch Sites: Xichang, Xichang LC2, Xichang LC1. Stages: CZ H-18 stage, CZ-3A-1, CZ-3A-2. Agency: CALT.
Photo Gallery

LM-3ALM-3A
Long March LM-3A launch vehicle on the launch pad.



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