Press release of rocket "H3" engine under development Odate Akita Feb. 14, 19:35
In the new fiscal year, the main engine of the Japanese flagship launch vehicle "H3", which is scheduled to be launched, was opened to the press at the test site in Akita Prefecture.
H3 is a new rocket developed by Japan Aerospace Exploration Agency and Mitsubishi Heavy Industries as a successor to H2A, Japan's main rocket. At the test site in Odate City, Akita Prefecture, the main engine "LE" A test to spray -9 ”was conducted.
The test site was opened to the press with the injection test completed on the 14th, and three engines were installed in the building in the same arrangement as the actual launch.
The engines are 3 meters and 75 centimeters in length and weigh 2.4 tons, and have a 1.4 times higher propulsion force than the H2A main engine.
The H3 is designed for the first time in a Japanese rocket to be able to inject three main engines simultaneously.
"We had three items to check by bundling the engines, but we were able to carry out the tests almost as planned and gather important data. One year later, I want to make steady progress toward the launch day. "