China-Singapore Network Map

Xinhua News Agency Beijing News on May 30 In the early hours of May 30th, when the fourth “National Science and Technology Workers’ Day” arrived, the Long March 11 solid launch vehicle blasted out and pierced the sky, successfully testing two new technologies in a “one arrow, two stars” way The satellite is put into a predetermined orbit. Since its first flight in September 2015, the Long March 11 rocket has successfully sent 39 satellites into space nine times in a row, 9 consecutive high-precision orbits and zero window launches on time, fully demonstrating the rocket’s excellent reliability and mission Adaptability and diversified launch capabilities.


There are many launch scenes: “Continent, the sea” Ren Er soaring

The Long March 11 rocket is a Chinese launch vehicle owned by China Aerospace Science and Technology Corporation The Technology Research Institute is the only solid launch vehicle in the Long March series of launch vehicles, which can be launched at different launch sites, at sea, and on land. The rocket has a total length of nearly 21 meters, weighs 58 tons, and has a take-off thrust of 120 tons. It is compatible with two fairings of 2 meters and 1.6 meters, and can send a 500 kg payload into a 500 km solar synchronous orbit.

“Compared with previous launch missions, this launch mission achieved three breakthroughs.” Peng Kunya, chief designer of the Long March 11 rocket, introduced these three breakthroughs , That is, the first time to perform a rocket launch mission at the Xichang Satellite Launch Center; the first use of a 2-meter diameter fairing; and the first use of a new informational launch platform to launch.

Following the land launch from the Jiuquan Satellite Launch Center and the sea launch from Haiyang, Shandong, the Long March 11 rocket was first launched at the Xichang Satellite Launch Center. Taking full advantage of the geographic latitude and altitude of the new launch site, the joint training and first flight tasks were completed in a relatively short period of time, which fully verified the strong environmental adaptability of the launch vehicle.

Peng Kunya introduced that compared with the previous 1.6-meter diameter fairing, this mission used for the first time 2The meter diameter fairing provides more space for satellites to better meet the needs of multi-satellite launches. The two satellites launched were connected in series. For the first time, an internal support structure was designed on the solid launch vehicle to isolate the fairing from the “loft structure”, which could provide a good “living environment” and “ride experience” for the satellites.

The new launch platform used in this mission is highly integrated and highly intelligent, with the ability to independently launch. The launch point can be flexibly selected to greatly enhance the orbit adaptability of land launch. The use of an intelligent test system greatly shortens the launch preparation time.

“This launch fully verified the adaptability of the Long March 11 rocket to the launch mission and the ability to diversify the launch, and the rocket will continue to strengthen sea and land in the future. The full-area launch capability will build the Long March 11 rocket into a domestically adaptable launch vehicle. “Peng Kunya said.


Short performance cycle: “Quick Ring Arrow” is worthy of the name

In the new generation of launch vehicle family, the Long March 11 rocket has “Quick Ring” “Li Arrow”. More importantly, on the basis of continuously summarizing the launching experience, scientific and technological personnel continue to innovate to make the “Quick Arrow” faster and faster.

In the past, the performance cycle of the Long March 11 rocket launch mission required at least seven or eight months or even a year, but now under extreme circumstances, a rocket is feasible from the demonstration It took more than five months to implement the launch.

“This is because the model team has been actively exploring the de-mission management and parallel design ideas of the solid launch vehicle.” Jin Xin, deputy commander of the Long March 11 rocket, said On the basis of the de-mission of the rocket and arrow assembly, the development team realized the de-mission of the flight control software.

“The improvement in assembly and testing efficiency has laid the foundation for the future launch of the Long March 11 rocket into high-density launches. The shorter the compliance period, the stronger the market ’s rapid response capability . “Jin Xin said.


The market is broader: “Space Car” seats are unveiled

At present, the Long March 11 rocket has become a practical commercial rocket and is truly a real player in the market A commercial launch was achieved. In the future, the development team will also develop a new rocket on the existing basis, with a carrying capacity of 2 tons.

“The greater the carrying capacity, the lower the cost per unit weight of payload into space, and the better the economy of the rocket.” Commander Li Tongyu said.

At that time, the rocket launch price is only equivalent to one-third of the international mainstream launch price, has a strong international competitive advantage, can provide exclusive and customized for various types of payload Services to expand the broader commercial market of China’s Long March rocket.

Li Tongyu told reporters that the development team has developed a loading service when the main load has a residual carrying capacity, and has opened a window for the future development of the remaining carrying capacity, China The Launch Vehicle Technology Research Institute updates the opportunity to board the remaining carrying capacity of the Long March 11 rocket online every six months.

This method of proactively showing the “space car” seat has won more users for the Long March 11 rocket. Since the third launch in 2018, the Long March 11 rocket has adopted “special car, car sharing” and other modes to meet the diverse launch needs of small satellites.

“Follow-up, we hope to make the rocket’s carrying capacity larger. It will lay the foundation for the future upgrade of the launch vehicle and the economic efficiency of the launch vehicle.” Li Tongyu said.

(original title “” One Arrow, Two Stars “! The Long March 11th rocket successfully launched three highlights for the ninth time”)