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Zhuque-3 chief commander reveals cause of Y1 rocket's failed recovery, saying its data contributed to Y2's success_我的网站

A |     Violent clashes broke out between locals and police officers on Sunday during an anti-encroachment drive to raze 70 illegal houses built on government land in the city of Patna, Bihar state.,District Magistrate Dr. Chandrashekhar Singh told the ANI news agency that authorities had identified 40 acres of a Nepali colony for the anti-encroachment drive. A team of 2,000 security officers reached the site with around 17 JCB demolition machines to tear down the illegal houses.,According to reports, all of the houses were built after the state land was illegally occupied. Squatters had been issued vacation orders one month previous to the demolition.,However, authorities called on the bulldozers when residents failed to adhere to the order.,Dr. Singh claimed that residents of the Nepali colony didn’t have any paperwork, and they didn't file for building authorization from the state housing administration.,“While 5,000 residents live here, only 90 applications were received of whom only nine [were] accepted... We have advertised no sale/buying of this land is permitted, however, parallel sales are going on,” Dr. Singh explained.,In response to the authorities’ move, a group of locals protested against the demolition, explaining that they pay municipal taxes for electricity and other services. Stones were thrown when the bulldozers arrived and police used tear gas to quell the unrest.,Bulldozers going for anti encroachment drive in Patna, Bihar. #bulldozer #Patna #Bihar #Bulldozers pic.twitter.com/BDORLVTe4s— gelos.in (@gelos_in) July 3, 2022,#WATCH | Bihar: City SP (Central) Patna, Ambrish Rahul injured in the clash between Police and locals during an anti-encroachment drive at Nepali Colony in Rajeev Nagar, Patna. pic.twitter.com/NcQ3Kmt5lL— ANI (@ANI) July 3, 2022,Patna Police Superintendent Ambrish Rahul was injured during the violent clashes.,#PATNA | City SP (Central) Ambarish Rahul sustained injuries in the ensuing violent #protests against anti-encroachment drive in #RajeevNagar locality of the state capital pic.twitter.com/lR5WkLLgsD— Aditya Vaibhav (@ScribeAditya) July 3, 2022,Want to know more? Check out our Koo & Telegram accounts!,Koo: https://www.kooapp.com/profile/sputniknews,Sputnik India: https://t.me/sputniknewsindia。    

    ZQ-3 Y1 rocket took off for maiden flight from the Dongfeng Commercial Aerospace Innovation Test Zone at noon time on December 3, 2025. Photo: courtesy of LandSpaceThe cause of an unsatisfying recovery of the Zhuque-3 Y1 carrier rocket has recently been revealed by Zhuque-3's chief commander, who said an abnormal combustion occurred during a landing ignition as the rocket descended toward the ground, state broadcaster China Central Television (CCTV) News reported on Wednesday.
The recovery of the first stage of Zhuque-3, China's first reusable carrier rocket developed by LandSpace, was failed during a test flight back on December 3, 2025, while the second stage of the rocket managed to successfully enter the designated orbit, according to the Xinhua News Agency.
Dai Zheng, chief commander of Zhuque-3, said that when the rocket was about 3.3 kilometers above the ground, it needs to perform a rapid deceleration maneuver by reigniting its engine, a process known as a "landing ignition."
"The ignition sequence was completed and the engine did ignite, but abnormal combustion occurred afterward. The rocket eventually crashed near the edge of the landing pad," Dai said, according to CCTV.
Although the rocket did not achieve a successful recovery, the mission, China's first orbital-class rocket first-stage recovery test, collected telemetry data during the return phase, provided a clearer picture of the flight environment throughout the recovery process, and yielded a large amount of valuable first-hand test data, per CCTV. 
Drawing on the data collected from the Zhuque-3 Y1 mission, the development team made improvements to the Y2 launch vehicle.
Eight months after the Y1's unsatisfying recovery, the Zhuque-3 Y2 reusable launch vehicle on Wednesday conducted a flight test, carrying not only a satellite payload but also successfully carried out a major test of China's emerging reusable rocket capabilities. After completing its orbital mission, the rocket's first stage attempted a controlled return and recovery.
The Y2 mission was conducted on the basis of experience accumulated from the previous flight test, with improvements focused on recovery reliability, flight control and engine performance.
LandSpace said it optimized the first-stage landing propulsion scheme by reducing the number of engines used during landing ignition, simplifying system design and improving reliability during the recovery phase. The company also added an autonomous safety control function capable of predicting landing points based on flight conditions and making corresponding safety adjustments.  
Global Times 
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