It’s history: China recovers the first stage of an orbital launch vehicle, just like SpaceX
Having taken off from Wenchang, it landed on a platform at sea. China has become the second country, after the United States, to demonstrate the technology that has made SpaceX the market leader in space launches
China has successfully recovered the first stage of an orbital launch vehicle. This achievement, which is also significant from a geopolitical perspective, was accomplished during the maiden flight of the new Long March 10B, a launch vehicle developed as part of the lunar programme.
At 12.15 pm on Friday 10 July in Beijing (6.15 am in Italia), the Long March 10B lifted off from launch complex LC-2 at the Wenchang commercial spaceport on Hainan Island. Around two and a half minutes later, the first stage separated from the second and began its re-entry: first, a stabilisation phase and the deployment of the grid fins, followed by propulsive braking, and then the descent through the atmosphere at several times the speed of sound.
Eight minutes after take-off, the first stage settled vertically onto a floating platform situated more than three hundred kilometres offshore in the South China Sea, securing itself with special ‘landing hooks’ to a network of cables stretched between mobile trolleys mounted on the LingHangZhe (‘Navigator’) recovery vessel. Meanwhile, the second stage, powered by a single engine fuelled by methane and liquid oxygen, completed the insertion of its payload into orbit.
For the first time ever, China has thus successfully recovered, intact, the first stage of an orbital rocket, a milestone achieved following two failed attempts in December: LandSpace’s Zhuque-3 and the state-owned SAST’s Long March 12A, both of which crashed near their landing sites in Gansu.
The Long March 10B, a launch vehicle 70 metres tall and 5 metres in diameter, is not, it should be noted, the flagship of China’s lunar programme; rather, it represents its commercial backbone. Developed by the China Academy of Launch Vehicle Technology (CALT) through its commercial arm, Chinarocket, it shares its first stage – seven YF-100 engines fuelled by kerosene and liquid oxygen – with the Long March 10A, the launch vehicle designed to carry taikonauts (as Chinese astronauts are known) into orbit aboard the Mengzhou capsule. The second stage is different: it is powered by methane with a single YF-219 engine producing 140 tonnes of thrust, designed for satellite and cargo launches rather than crewed flights.
