1 Fasl
1 Qism
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.
- Yil: 1959
- Mamlakat: United States of America
- Janr: Documentary
- Studiya: PBS
- Kalit so'z: educational, historical documentary
- Direktor: Sam Becker
- Cast: Alexander Lippisch