RC contra-rotating, variable pitch prop for a Westland Wyvern
13:15
Duas HÉLICES no mesmo motor girando para lados diferentes? O que são hélices contra-rotativas?
4:52
Types of Airplane Contra-Rotating Propeller Drives
7:32
Supercharged Micro Radial Engine: Making of (New Project coming soon!)
18:21
Ekranoplan Ep 1
10:07
contra rotating propellers (１号機) in ENYA60X
11:55
Stepped Airfoils for Model Airplanes - Are They Better?
11:57
Puller vs Pusher Aircraft - Which is More Efficient?
25:22