![The Secret of Flight](/dq-content/themes/movie/img/no-cover.jpg)
1 Msimu
1 Kipindi
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.
- Mwaka: 1959
- Nchi: United States of America
- Aina: Documentary
- Studio: PBS
- Neno kuu: educational, historical documentary
- Mkurugenzi: Sam Becker
- Tuma: Alexander Lippisch