|
BEIJING, Oct. 16 (Xinhuanet) -- China's first manned spaceship, Shenzhou-5, is
more comfortable and has more functions than those developed by Russia and the
United States, a senior officer with China's manned space program said here
Thursday.
Xie Mingbao, director of the manned space program office, told a press
conference organized by the State Council Information Office that although
Chinese experts have learned much from their Russian counterparts in spaceship
designing, Shenzhou-5 is not a replica of Russia's spacecraft and it is more
comfortable for astronaut and has more functions.
Shenzhou-5, the largest of its kind in the world, had an orbit module
designed to remain in orbit for longer time to conduct scientific experiments,
Xie said.
The officer said that the successful launch and landing of Shenzhou-5
indicates that China has made breakthroughs and mastered the know-how of manned
spaceship and accomplished the objectives set for the first step of manned space
flight program, making China the third nation in the world that has sent a human
into space," said Xie.
Xie cited the precision landing point of the re-entry module, which is only
4.8 kilometers away from the planned spot.
Xie described China's first spaceman Yang Liwei as "astonishingly
wonderful."
In reply to a question of why live TV show was not made on the launch and
landing, Xie said that live show or not is not directlyassociated with the
success or not of the space launch and what weconcerned about most is how to
organize well the launch and ensureits success, adding that "we were fully
confident of the success of the mission before the launch and facts have
testified to it."
Xie gave a detailed account of the return and landing of the spaceship. He
said that the ground command fed the return data to the spaceship when it was
orbiting the Earth for the last time andthe spaceship began to execute the
return orders when it reached the space over the southwestern part of Africa. It
first turned about 90 degrees to leave the orbital capsule and it turned about
another 90 degrees to reverse its position and started the brakingengine to
reduce speed. When it reached about 145 kilometers from the Earth, it jettisoned
the propulsion module before the reentry module entered the atmosphere. When it
reached a point about 10 kilometers above the Earth, it released a huge
parachute that measures 1,200 square meters. When it reached about one meter
fromthe ground, the buffer engines were started to reduce the speed to2-3 meters
per second to cushion the landing impact.
Shenzhou-5, measuring 9.2 meters in length and weighing 7,790 kilograms,
consists of the orbit, re-entry and propulsion modules.
After the successful launch, the spaceship was put under the monitoring by
a global tracking network, including land-based command and control stations and
sea-based tracking fleet, Xie said.
Xie revealed that China spent 18 billion yuan (2.17 billion US dollars) on
its space program initiated in 1992, with each test prior to Shenzhou-5 costing
less than one billion yuan (120 million US dollars). Enditem |