Mega Engine Technology Achieves Milestone in High-Pressure Oxygen-Rich Staged-Combustion Engines
Mega Engine Technology, a commercial startup based in Xi'an, China, has announced a significant achievement in the development of high-pressure oxygen-rich staged-combustion kerolox engines. The company reported that its engine, named Chi, has accumulated 1,000 seconds of run time at rated conditions during its test campaign. This milestone is notable as such endurance figures have traditionally been associated with engines developed within China's state propulsion houses. The Chi engine demonstrated rapid startup, stable operation, and intact hardware upon post-test inspection. Mega Engine Technology aims to provide Chinese commercial launchers with access to staged-combustion performance, which has been largely confined to state institutions. The company plans to unveil a second engine, Yan, later in 2026, intended for heavy-lift applications. 
