Commercial carrier rocket Smart Dragon-1 makes maiden flight
Jiuquan: China’s new carrier rocket Smart Dragon-1 (SD-1), designed for commercial use, made its maiden flight on Saturday, sending three satellites into planned orbit.
The rocket, developed by the China Rocket Co Ltd affiliated to the China Academy of Launch Vehicle Technology (CALVT), blasted off from the Jiuquan Satellite Launch Centre in northwest China at 12:11pm (Beijing Time).
To be used for remote sensing services, communication
The three satellites, respectively developed by three Beijing-based companies, will be used for remote sensing services, communication and Internet of Things.
Different from the carrier rockets of the Long March family, the new Dragon series is developed in a commercial mode to meet the market demand of launching small commercial satellites, said Wang Xiaojun, head of CALVT.
The SD-1, with a total length of 19.5 metres, a diametre of 1.2 metres, and a takeoff weight of about 23.1 tonnes, is a small-scale solidpropellant carrier rocket capable of sending 200 kg payloads to the solar synchronous orbit at an altitude of 500km.
“It has the highest carrying efficiency among China’s current commercial solid-propellant rockets,” said Gong Min, technical manager of the SD-1 project.
It took less than 18 months to develop SD-1, which is the shortest period to develop a new type of carrier rocket in China.
Intelligent technologies are used to analyse the data of the rocket, which will help improve its efficiency and accuracy, said Mr Gong.
The designers of SD-1 have made efforts to lower the costs and improve the efficiency and reliability of the rocket, said Mr Tang Yagang, president of the China Rocket Co. Ltd.
What SD-1 can do
One such rocket can be produced in six months after business agreements are signed with customers. After the rocket is transported to the launching centre, the launch can be realised within 24 hours. The rocket can be used for launching either single satellite or multiple satellites at a time, according to Tang.
Mr Tang said the company mainly relies on social financing to develop SD-1 to lower its cost through competition. “Commercial launching will have a vast market in the fields such as low-Earth orbit Internet mobile communication and remote sensing,” Mr Tang said. The company plans to complete five launches of SD-1 by the end of 2020.
More technological advancements
In addition to the Smart Dragon solid-propellant carrier rockets, CALVT will also develop liquidpropellant commercial rockets, which will have a higher carrying capacity, according to Mr Tang.
China successfully tested the technology that can accurately control the falling of rocket remains during a launch on July 26, which laid the foundation for developing reusable carrier rockets. “We have stepped up the development of reusable launching vehicles, which is expected to be realised in the coming two to three years,” said Mr Tang.
China has accelerated the development of the commercial space industry.
Launch of the Smart Dragon-1.