Last updated at: (Beijing Time) Tuesday, November 04, 2003
Emergency procedures well prepared, but not used in Shenzhou-5: spacecraft designer
During the 21-hour flight of Shenzhou-5, no emergency procedure and safety equipment was used although they were well prepared in design, said Qi Faren, chief designer of the spacecraft system, Monday.
During the 21-hour flight of Shenzhou-5, no emergency procedure and safety equipment was used although they were well prepared in design, said Qi Faren, chief designer of the spacecraft system, Monday.
Qi, who is visiting Hong Kong with China's first astronaut Yang Liwei and other space experts, told Xinhua in an exclusive interview that among the software programs of the spacecraft and carrier rocket, 80 percent were designed for emergency, much more than the 20 percent for normal operation.
The safety of astronaut has been given top priority in China's space program, said Qi, who is also a member of the International Academy of Astronautics.
Qi said that when Yang Liwei met him after returning to the Earth, Yang said the spacecraft is really well designed. It's the highest praise to the spacecraft designers by the astronaut, he added.
The Chinese astronaut can make emergency escapes when a danger occurs from the very beginning of the liftoff. The escape tower atop the carrier rocket is used to make an emergency getaway, according to Qi.
Once troubles occur, the rocket's malfunction-detecting system will give an escape order to the escape tower, whose engines ignite immediately to pull the orbital and re-entry modules off from the rocket and land with a parachute.
At 200 seconds from the liftoff and at an altitude of 100 kilometers, the craft's flaring will also be given up. If problems happen thereabouts, the spacecraft's own engines will ignite to disengage the craft from the rocket, and send it into the orbit.
The first astronaut stayed in space in less than 24 hours, orbiting the earth 14 times, and returned. During each Earth-orbiting, the astronaut can conduct emergency returns any time back to atmosphere, if there could have occurred any risks of mechanical problems, meteorites and body discomforts.
In order to ensure astronaut's safety during landing, the astronaut is equipped with lifeboat, compass, matches, fishhook, gun and knife in case that he lands in an hostile environment, said Qi.
In addition, helicopters, salvage ships and other rescue measures were also well prepared, he added.