The official Blue Arrow Aerospace said that on September 25th, the "Tianque" family vacuum liquid oxygen methane engine - TQ-15A completed the first assembly at the Huzhou Intelligent Manufacturing Base, and is scheduled to be installed on October 10. On the 8th, it was delivered to the test bench for test run assessment.
Blue Arrow Aerospace stated that the TQ-15A will be put into use as the second batch of secondary main engines of the Suzaku-2 rocket. The engine and TQ-12A general turbo pump, valve, gas generator, and other key components adopt the pump forward swing scheme, the vacuum thrust reaches 836kN, and can achieve 60%-110% depth change thrust, and the overall performance has reached the international advanced level.
According to reports, compared with the second engine of the Suzaku-2 rocket in service, its advantages are as follows:
The cancellation of the tour machine reduces the complexity of the system and reduces the weight by about 400kg
With ±4° two-way swing function, attitude control can be performed without the need for a swimming machine
It has the functions of three ignitions and depth change, which can meet various ballistic requirements
Using the pump front swing layout scheme reduces the pump-push spacing and improves the compactness of the structure
The turbo pump uses end face sealing technology to reduce the leakage rate and simplify the rocket launch process
The turbo pump is changed to a two-stage turbine, which improves the efficiency and reduces the size of the engine;
The turbine exhaust is introduced into the extension of the thrust chamber nozzle, which improves the specific impulse performance of the engine and reduces the lateral force of the engine
Blue Arrow Aerospace pointed out that with the application of TQ-15A in the future, the cost of the Suzaku-2 carrier rocket will be reduced while the capacity will be further improved to meet more types of launch needs and meet the requirements of future commercial development of launch vehicles.