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DIY Drone and Quadcopter Projects by The Editors of Make:

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Chapter 3. Anatomy of a Drone

Standard Prop

The same “tractor” propeller used on standard front-engine R/C airplanes. In orange in the diagram above.

“Pusher” Prop

These contra-rotating props exactly cancel out motor torques during stationary level flight. Opposite pitch gives downdraft. In dark grey in the diagram above.

Motor

Usually a brushless electric “outrunner” type, which is more efficient, more reliable, and quieter than a brushed motor (Figure 3-1).

Figure 3-1. Motor

Motor Mount

Sometimes built into combination fittings with landing struts (Figure 3-2).

Figure 3-2. Close-up of motor mount ...

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