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• 헬리오스 호라이즌, '전고체' 유인 전기 비행기 첫 비행 성공 history with solid-state batteries Helios Horizon made aviation history Friday with the first flight of One 5 June, Chief Test Pilot Miguel Iturmendi completed a series of initial test flights at Zephyrhills blog.naver.com · 2026.06.12