China News Service, Shanghai, March 29th (Zheng Yingying and Ma Shuaisha) As a "hybrid boy", the Long March 6 modified carrier rocket (referred to as: Changliu Kai) "set off" from the Taiyuan Satellite Launch Center on the 29th. A new member of China's new generation of launch vehicle family, "hidden" with a new password.
Photo by Sun Gongming
"Appearance": The total length of the whole arrow is about 50 meters, the take-off weight is about 530 tons, and the carrying capacity in the 700-kilometer sun-synchronous orbit is not less than 4 tons.
"Body": the combination of solid and liquid, "work" is not tired.
Changliu Kai uses a "solid-liquid hybrid formula", which is China's first solid-bundled launch vehicle, with one "liquid core stage" tied to four "solid boosters".
The liquid engine has high performance and long working time; the solid engine has large thrust, reliable operation and simple use and maintenance.
"Hat": Customized version of "Crown".
The fairing of Changliuqi is currently the largest 4.2-meter fully wave-transparent composite rocket fairing in China.
The "crown" is made of fully wave-transparent composite materials, which reduces the "weight" without reducing the "quality", so that the rocket can withstand the "crown" and at the same time, the overall "weight" is good.
"Eating": Being able to "eat" by yourself.
Four hours before the launch of Changliuqi, all the staff evacuated from the launch tower, which was nearly 3.5 hours earlier than the conventional launch vehicle launch process.
Changliu is "especially conscious" and will "feed" himself and leave the earth.
In China's "launch vehicle family", Changliu Gai won several "little red flowers" due to its outstanding performance: it not only adopted the automatic docking and filling ("eat") technology for the first time to realize the automatic filling of remote full-process propellants; For the first time, the zero-second detachment technology is adopted, so that the rocket ground connector automatically detaches at the moment of take-off.
"Healthy": In the family of Chinese launch vehicles, Changliuqi has adopted the servo system online fault diagnosis and adaptive reconstruction technology for the first time. During the flight of the rocket, when a certain servo mechanism fails, the intelligent "brain" will automatically After the diagnosis, the calculation is recalculated and the control instructions are assigned to realize the intelligent control of the rocket flight.
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