Chapter 3. Power Train

The power train is the group of components that generate power and transfer it in a fashion that creates movement. In your car, the engine creates power that is transferred to the transmission that sends it through the axle system and finally to the wheels which make the car move. Our quadcopter also has a power train system that helps us to create movement. Let’s have a look at those components now.

Propellers

The best place to start is at the end, at the propeller. The prop, as it is usually called, is often compared to the tire in automobile power trains; just as the tire “grips the road” to create movement for the car, the propeller “grips” the air, moving the drone. And like tires for your car, props come in ...

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