TQ-15

The TQ-15 is a gas-generator cycle rocket engine burning liquid methane and liquid oxygen developed by Landspace. The most recent version of the TQ engine family, the TQ-15A, powers the second stage of LandSpace's upgraded Zhuque-2E rocket.

History

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.
In March 2024, the first flight-ready TQ-15A was delivered for the assembly of Zhuque-2 Block 2.
On November 27, 2024, an upgraded Zhuque-2E with a TQ-15A engine powering the second stage successfully placed 2 satellites into orbit.