Thrust Reversal Explained: How It Helps Aircraft Stop Safely
Pilot Institute
JUNE 12, 2025
Pitch affects how much the propeller blade bites into the air to force it backward. Many variable pitch propellers can have their blade angle decreased past zero to a negative angle. At low groundspeeds, the air flowing through the engine is much less than at high speeds. This, of course, means less thrust.
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