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Wind Tunnel Tests Preceeded Shenzhou Flight
Hong Kong - December 2, 1999 - Ta Kung Pao, a pro-Beijing newspaper in Hong Kong reported yesterday that the Shenzhou capsule was the product of testing in the wind tunnel facility in Chengdu, the provincial capital of Sichuan. The eight wind tunnels in the facility, the largest cluster of such in Asia, can test aerodynamic, thermal and reentry dynamic properties of missiles, satellites, and space capsules. When the government decided to establish a manned space program in 1992, the facility was assigned the task to model Shenzhou, test the thermal and structural dynamics of it, and finalize its design. The model had undergone testing in supersonic and hypersonic conditions. Also tested were low density ablative materials, and their thermal conductivity, for the reentry module. These tests helped solve the technical difficulties in selecting ablative material, thermal shielding, control and stability of the capsule, and aerodynamic loading on the capsule during launch. According to aerospace specialists in China, the successful mission of Shenzhou paves the way for several more test flights of the manned capsule. These specialists believe that China can launch its first taikonaut before 2005. In another report in today's Chinese language Science and Technology Daily newspaper (in China), a dosmetic large scale space environment simulator for testing space vehicles has recently passed certification in Beijing. The simulator can simulate space conditions such as vacuum, hot and cold cycles, and solar radiation. The report says that the simulator is one of the three largest of such facility to test manned space vehicles in the world, and its quality reaches international level. According to the report, the completion of the simulator represents a breakthrough in space environment simulation facility and technologies in China, and will satisfy future demand in testing of space vehicles. Community Email This Article Comment On This Article Related Links Space
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