Lingyun engine
Reusable methane rocket engine that can restart and throttle
Jiuzhou Yunjian
Beijing company that designs and builds reusable methane-oxygen rocket engines and supplies them to Chinese rocket makers, including Jianyuan Technology's test rocket. It says it has delivered 20 engines.
Products, by altitude
Launch · From the pad to orbit
In development Testing Longyun (Dragon Cloud) engine
Reusable methane engine for first stages of larger rockets
Milestones
- May 2025 A Longyun engine powered a rocket test vehicle that lifted off from Haiyang, Shandong, throttled, shut down, restarted during descent and soft-landed on the sea; the company called it a full success. Company statement1
Sources
Updated Oct 22, 2026 · How we source facts · Suggest a correction