Tue. Dec 7th, 2021

China’s self-developed solid rocket engine with the world’s largest propulsion has had a successful test run, which marks a significant improvement in the payload for the country’s fixed propulsion rockets.

The Booster engine, with a diameter of 3.5 meters and a maximum pressure of 500 tons, powered by 150 tons of solid fuel, is the most powerful solid rocket engine.

Several cutting-edge technologies — for example, a high-performance fiber composite shell, an integrated high-load cast combustion chamber, and an oversized nozzle — make it a world-leading rocket engine.

“Today’s test is very successful. We have tested all parameters, including the 500 ton power that worked for 115 seconds,” said Ren Quanbin, president of the Fourth Research Institute of China Aerospace Science and Technology Corporation (CASC), the developer.

Unlike a floating engine, a solid rocket engine is powered by the high-energy jar, with the benefits of simple structure, flexible mobility and high instantaneous pressure.

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“For solid rocket engines, the powder load was several hundred kilos, several tons, or dozens of tons,” said Yu Ying, head of the factory in 7416 under the Fourth Research Institute.

“This is the first time that exceeds 100 tons.”

The successful test run offers several opportunities for the development of launch vehicles and is of great importance in promoting the development of the country’s large and heavy rockets.

Based on the recently tested booster engine, the developer has begun the study of the five-speed booster engine, whose diameter can reach 3.5 meters and the impact force 1,000 tons.

“The success of the test meant that we have made significant progress in improving the capacity of our fixed-propellant rockets,” said Wang Jianru, chief engine designer of the engine, as quoted by state media China Daily.

The future booster engine is expected to be used in large and heavy rockets to meet various requirements for launch vehicles during space missions such as manned lunar landings and depth research.

“We are at the international advanced level in large solid rocket engines. Next, we will develop a 1,000 ton solid rocket engine to provide stronger power to China’s airlines rockets in the future,” said Dr. Clean.

Earlier this week, China denied a Financial Times report that it was testing a nuclear-powered hypersonic missile in July, claiming instead that it was attempting a spacecraft.

“It was not a missile, it was a spacecraft,” Chinese Foreign Ministry spokesman Zhao Lijian told a regular Beijing press conference when asked about the report.

It had been a “routine test” in order to test technology to reuse the vehicle, he added.

Last week, China launched a spacecraft with three astronauts to the core module at a future space station, where they will stay for six months, the longest duration in orbit for Chinese astronauts.

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China launches mission to build space station

Reuters / ABC

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