Lingyun (rocket engine) should not be confused with Longyun (rocket engine).
| Lingyun | |
| Status: | Under development |
| Throttle Range: | 30%~100% |
| Type: | Liquid |
| Thrust(Vac): | 123.5kN |
| Thrust(Sl): | 100kN |
| Specific Impulse Vacuum: | 355s |
| Specific Impulse Sea Level: | 287.4s |
| Dry Weight: | 248kg (547lb) |
| Notes: | [1] |
The Lingyun (lit. Soaring above the clouds) is a gas-generator cycle rocket engine burning liquid methane and liquid oxygen under development by Jiuzhou Yunjian.
In 2018, Jiuzhou Yunjian's Lingyun engine successfully passed tests for its gas-generator, ignitor, and valves.[2] In 2021, the Lingyun engine completed multiple starts and deep variable thrust tests, demonstrating a breakthrough in reusability technology for the company.[3]