BBC - Horizon: The Chopper (1982) VHSrip
English | AVI | XVID 1805 kbps 29.970 fps | 640x464 | MP3 1024 kbps 32 KHz | 54 mns | 700 MB
Genre: Documentary
Horizon - The Chopper (1982)
Begins with an example of a helicopter type aircraft from an early science-fiction movie, then covers the evolution of a practical design with old research films made different designs. A female Fokker test pilot recalls her experience getting the first practical helicopter into the air. The leading designers in the US - Sikorsky and Bell - then take much programme time. The aerodynamic principles whereby a helicopter lifts and flies forward are explained
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