1 Ràithe
1 Episode
The Secret of Flight - Season 1 Episode 6
After the lift, stability and control problems were solved, a propulsive system was needed to make the aircraft fly. The first propulsion device - the propeller - is still in use today. Dr. Lippisch explains the design of the propeller and demonstrates the lifting propeller - the Helicopter Rotor.
- Bliadhna: 1959
- Dùthaich: United States of America
- Seòrsa: Documentary
- Stiùidio: PBS
- Faclan-luirg: educational, historical documentary
- Stiùiriche: Sam Becker
- Cast: Alexander Lippisch