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XF9は日本単独で実施していた将来戦闘機研究事業の一環の地上実証エンジン
FIA2024のものは共同開発のGCAPのエンジン担当三社が展示したGCAPエンジンのインタラクティブモデル

Also displayed for the first time was a new interactive GCAP engine model that allows the partners to
showcase some of the technologies that define sixth generation power and propulsion. These include
the smart generation of much more electrical energy to power all the systems on the aircraft and ensure
its future proofed for emerging technologies such as directed energy weapons systems.