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Chinese commercial space firm completes long-duration test of reusable rocket engine_我的网站

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    This photo shows the reusable rocket Nebula-1, developed by Chinese private rocket company Deep Blue Aerospace, blasting off during a high-altitude vertical recovery flight test in north China's Inner Mongolia Autonomous Region, Sept. 22, 2024. (Deep Blue Aerospace/Handout via Xinhua)
China's commercial reusable launch vehicle sector continues to make steady progress, as a company announced on Friday that it had completed a long-duration test firing of an engine for a large recoverable carrier rocket.
Deep Blue Aerospace, a commercial space startup based in Wuxi, east China's Jiangsu Province, said it recently completed a 100-second static-fire test of its Thunder-RS engine, a 130-tonne-class liquid-oxygen kerosene engine designed for the company's large reusable rocket, Nebula-2.
The test reached 1,297.5 kilonewtons of thrust, or about 132.3 tonnes. The company said multiple short-duration test firings had been conducted previously to evaluate engine performance, with no anomalies recorded.
The recent 100‑second run was the engine's first crossing of that steady‑state duration threshold, serving as a comprehensive verification of its performance, the company said.
    This screenshot from a video clip shows the first stage of the Zhuque-3 Y2 rocket making its land-based recovery, Aug. 19, 2026. (LandSpace/Handout via Xinhua)
Rocket reusability can greatly cut launch costs and boosts launch frequency, making it key to achieving large-scale, routine access to space.
China launched the reusable rocket Zhuque-3 on Wednesday morning, achieving its first recovery of a rocket's first stage on land, marking the country's first successful land-based recovery. This mission followed the successful sea-based net recovery of the Long March-10B's first stage on July 10.
More models of Chinese reusable rockets are scheduled to conduct tests this year. 
。    (ECNS) -- Unitree Robotics has priced its Shanghai initial public offering at 150.80 yuan (about $22.34), the company said on Thursday, with online and offline subscription kicking off next Monday.    In a filing to the Shanghai Stock Exchange, the Chinese robotics firm said it was seeking to raise 6.099 billion yuan in gross proceeds, with net proceeds of about 5.917 billion yuan after deducting issuance expenses. The funds will mainly go toward robot R&D, production capacity expansion and embodied intelligence algorithm development.    The IPO proposal has secured approval and registration clearance. Unitree plans to float 40.4464 million shares, accounting for 10% of its enlarged total share capital. The offering includes strategic placement, offline book-building allotment and online fixed-price subscription.    Unitree estimates its operating revenue for the first half of 2026 will stand between 1.052 billion yuan and 1.128 billion yuan, with net profit attributable to parent company ranging from 258 million yuan to 306 million yuan.    Unitree applied under the second set of STAR Market listing criteria which requires an estimated market value of no less than100 billion yuan. Its post-IPO market value will hit approximately 60.993 billion yuan.    (By Intern Xu Wenda, Zhang Dongfang)                    。

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Published on:10:09:45