The Chinese aerospace industry has achieved a significant milestone in the National Consolidation Program of the Changjen series. The Chinese aerospace scientific and technical corporation (CASC) has successfully conducted firing tests of the most powerful and technically complex configuration of liquid missile engines, known as YF-100K.
During the tests, a system of four YF-100K engines generated a total thrust of over 500 tons. Chief designer Lee Bin from the Academy of Aerospace Motor Technology CASC in Xi’an confirmed that the test results validated the compatibility and reliability of the engines for flight.
Lee Bin stated that the system is now prepared for the next phase, which involves flight tests. Each of the four YF-100K engines in the experimental configuration produces approximately 130 tons of thrust. These engines feature advanced design elements, such as a reverse arrangement of the turbine unit (TNE), reducing mass-body characteristics compared to traditional structures.
The latest YF-100K engines are an upgraded version of the YF-100 engines and will be used in conjunction with the Changzheng-5 boosters, the largest in the series. While CASC did not specify the rocket for the initial test, it is anticipated to be part of the new variant of the Changzheng rocket scheduled for its first flight later this year.
A Changzheng-12 two-stage missile is set to have its maiden test launch in 2024 from a new commercial launch complex on Wenchang Island. This medium-class rocket is capable of carrying payloads up to 10 tons to low Earth orbit.
Furthermore, the new super-heavy Changzheng-10 launch vehicle is likely to incorporate the configuration of four YF-100K engines. This rocket is expected to support manned lunar missions in the next decade. The first stage of the Changzheng-10 rocket will consist of a central core and two side boosters, each equipped with seven YF-100K engines providing a total thrust of approximately 2600 tons. The inaugural test flight of the Changzheng-10 is planned for 2027.