This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com

astronautix.com CZ-4A

CZ-4A
CZ-4A -

10,863 bytes. 130 x 403 pixels.



Family: Long March. Country: China. Status: Hardware. Other Designations: Long March 4A.

The Long March 4 was a three-stage launch vehicle using storable propellants. The CZ-4 was developed and manufactured by the Shanghai Academy of Spaceflight Technology. Its first stage was essentially the same as that of the CZ-3 and the second stage was identical to that of the CZ-3. The CZ-4's third stage, however, is newly developed, featuring a thin wall common intertank bulkhead tankage and two-engine cluster with both engines gimbling about two perpendicular axes. The 3rd stage engine cluster connects to the tank aft bulkhead through the engine bay. The CZ-4 had two payload fairing configurations: Type-A and Type-B. The CZ-4 was designed for launching satellites into polar and sun-synchronous orbits. The CZ-4's typical payload capability is 1,650kg into a 600km sun-synchronous orbitsand 4,680 kg into a 200km circular orbit. On September 7, 1988, the CZ-4A made its first flight, successfully launching China's first experimental meteorological satellite. Another meteorological satellite was successfully launched by a CZ-4A on September 3, 1990. The CZ-4B introduced in 1999 was an improved model with enhanced third stage and fairing. It measured 44.1 metres in length with a first stage thrust of 300 tonnes.


Specifications

Launches: 2. Failures: 0. Success Rate: 100.00% pct. First Launch Date: 06 September 1988. Last Launch Date: 03 September 1990. LEO Payload: 4,680 kg. to: 200 km Orbit. Payload: 1,100 kg. to a: Geosynchronous transfer trajectory. Liftoff Thrust: 302,000 kgf. Total Mass: 249,000 kg. Core Diameter: 3.4 m. Total Length: 42.0 m. Launch Price $: 30.00 million. in 1994 price dollars. Flyaway Unit Cost $: 9.50 million. in 1985 unit dollars.


CZ-4A Chronology


1988 Sep 6 - - 20:30 GMT. LV Configuration: Chang Zheng 4 s/n CZ4-1. Launch Site: Taiyuan .
1990 Sep 3 - - 00:57 GMT. LV Configuration: Chang Zheng 4 s/n CZ4-2. Launch Site: Taiyuan .

Bibliography:



Back to Index
Last update 12 March 2001.
Definitions of Technical Terms.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .