Tokyo, October 8, 2026 – Kawasaki Heavy Industries, Ltd. announced today that it has successfully completed Japan’s first operational test of a small aircraft engine equipped with a newly developed hydrogen combustor that achieves one of the lowest nitrogen oxide (NOx) emissions in the world. The test was conducted as part of the “Development of Core Technologies for Hydrogen Aircraft” Project (hereinafter “Project”), which was selected by the New Energy and Industrial Technology Development Organization (NEDO) and subsidized as one of its Green Innovation Fund projects, “Next-Generation Aircraft Development.” The achievement marks an important milestone in the development of propulsion technologies for future hydrogen-fueled aircraft. (....)