500 km/h im Looping: Warum der extremste Hubschrauber von Lockheed scheitern musste

Five hundred kilometers per hour in a loop: Why Lockheed's most extreme helicopter was doomed to fail. The Lockheed XH 51 was no ordinary helicopter, but a radical experiment with a fixed rotor, wings, and additional jet thrust. This story shows how Lockheed pushed the boundaries of rotary-wing flight in the 1960s, why the machine could almost resemble an airplane, and why this technical triumph nevertheless failed to translate into mass production. From its spectacular flight characteristics and record-breaking attempts to its connection with the AH 56 Cheyenne, the story leads to an uncomfortable question: Was this helicopter a glimpse into the future or a project too far ahead of its time? Music in the video: Eyes of Glory by Aakash Gandhi and Duty Calls by Rod Kim. The photos used are from publicly available sources.