How Does A Helicopter Work: Everything You Need To Know About Helicopters
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YouTubeScience ABC
How Does A Helicopter Work: Everything You Need To Know About Helicopters
A helicopter works on the principle of aerodynamic lift - an upwards force that opposes the weight of the helicopter and holds it the air. So how exactly do the rotors of helicopters help them fly? For any object to fly in the air, it must have the force of lift pushing it upwards, but for that to happen, the air must pass around an airfoil. In ...
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China's Z-20J shipborne helicopter, an optimized variant of the Z-20 tactical utility #helicopter, made its debut at the ongoing 7th China Helicopter Exposition, which opened in north China's Tianjin Municipality on Thursday. | CGTN
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China's Z-20J shipborne helicopter, an optimized variant of the Z-20 tactical
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