Hiller-Copter - The Practical Air Transportation of the Future. Part 2

A c.1944 9-minute colour silent film about the flying qualities of the Hiller XH-44 'Hiller-copter' helicopter prototype.
The Royal Aeronautical Society has received the permissions for sharing these videos by either the named individuals or the relevant company. For use of videos for non-commercial purposes credit the Royal Aeronautical Society with the respective individual or company. For commercial use and for further information on each videos copyright, contact: [e-mail]

[@bingosunnoon9341]

What a fine looking flying machine. I wonder how they controlled yaw.

[@flappingflight8537]

I guess by differentially increasing/decreasing the collective pitch on upper and lower rotor blades. This way uncompensated torque is created and the craft rotates around the rotors axles.

[@bingosunnoon9341]

@@flappingflight8537 That sounds reasonable. Probably easy to do too.

[@flappingflight8537]

@@bingosunnoon9341 Probably matter of clever mixer mechanism scheme between collective pitch stick and yaw paddles.

[@f..4269]

❤️❤️❤️👍💋

[@henningandersen9027]

"of the future" - man it took me 5 minutes before I realised that it's from the forties. I am simply extremely tired, but the internet is keeping me up - also when I am very tired - SADLY....