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A controllable-pitch propeller (CPP) or variable-pitch propeller is a type of propeller with blades that can be rotated around their long axis to change the blade pitch.

8 votes

Why, with a constant speed propeller, does moving the propeller control forward increase drag?

Let’s take the engine out of the equation to simplify things. In fact, let’s take the prop out too, and consider a very elementary comparison – the old “hand out the window” example... Put your hand …
Michael Hall's user avatar
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