Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizen grass Luo Yuzi for the clue delivery! According to CTOnews.com news on March 4, StarCraft Glory, a private carrier rocket company in China, announced this evening that from March 1 to March 2, 2023, its 100-ton liquid oxygen methane rocket engine (hereinafter referred to as "JD-2") successfully completed two semi-system joint tests in real media.

▲ figure source Star Glory single test lasts 11.5s from the start of the turbine pump, the ignition of the gas generator, the steady working condition of the turbine pump to the shutdown. The test starts and ignites accurately according to the design time sequence. during the test, the parameters such as torch igniter and gas generator chamber pressure, gas temperature, turbine pump speed, turbine pressure, rear pressure and vibration are stable and in accordance with the design expectations. the experiment was a complete success.

StarCraft Honor said that through this assessment, the following goals have been achieved:

The matching and coordination of engine ignition system, auxiliary system and turbine pump are examined.

The rationality of the technical scheme of turbine pump is verified, and the performances of methane pump, liquid oxygen pump and turbine under multi-point conditions are obtained.

The feasibility and rationality of the technical scheme of the full electronic control valve are verified, and the matching coordination reliability between the electronic control valve and its actuator and controller is preliminarily examined.

The filling and ignition characteristics of the gas generator under the combined operation of torch ignition system and gas spinning system are obtained.

The ignition and shutdown time sequence of the engine auxiliary system has been checked and verified for many times.

The final assembly structure scheme of turbine pump, gas generator and electronically controlled valve of auxiliary system is examined and verified.

The real medium semi-system joint test is a key milestone in the development of JD-2 engine. The successful completion of this test has laid a solid foundation for the smooth development and success of the follow-up full-system test.

At present, the final delivery and acceptance of the JD-2 engine thrust chamber is under way, and the necessary conditions for the whole system assembly are basically met. The whole system assembly will be carried out in the middle of March 2023, and the whole system thermal test test is planned for May 2023.

▲ JD-2 engine, Picture Source Star Glory JD-2 engine is a matching engine for the medium and large launch vehicle SQX-3 developed by Star Glory Space Technology Co., Ltd., which adopts full electronic control valve, electric servo and pump swing scheme, CTOnews.com with main engine parameters:

Rated vacuum thrust: 105 tons

Rated vacuum specific impulse: 350 seconds

Tweet range: 40% / 115%

Starting times: 3 times (one flight)

Ratio of thrust to mass: 100

Number of reuse: 20 times

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