| TQ-15 | |
| Status: | Under development |
| Throttle Range: | 55%~110% |
| Type: | Liquid |
| Nozzle Ratio: | 45 |
| Thrust(Vac): | 836kN |
| Chamber Pressure: | 10.1MPa |
| Used In: | ZQ-2 Block 2 |
The TQ-15 (lit. Sky Lark 15) is a gas-generator cycle rocket engine burning liquid methane and liquid oxygen under development by Landspace. The most recent version of the TQ engine family, the TQ-15A, is intended to power the second stage of LandSpace's upgraded Zhuque-2 rocket.[1]
In October 2022, the construction of a fresh batch of ZQ-2 rockets was announced by LandSpace. A new variant of the TQ family of engines, designated as TQ-15A, was used in the second stage. The weight of the engine was reduced by 400 kg as a result of the elimination of the TQ-11 vernier thrusters, and vectoring is now done with a thrust vector control system that can angle up to four degrees. Additionally, the thrust will be enhanced and equipped with restart capabilities for greater mission profile flexibility.[2]
In March 2024, the first flight-ready TQ-15A was delivered for the assembly of Zhuque-2 Block 2.[3]