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Aviation Glossary :: Retreating Blade  Aviation Glossary :: Retreating Blade FAA Written Test Preparation
Aviation Glossary Welcome to the Dauntless Aviation Glossary!

At Dauntless, our editorial staff maintains the web's largest unified glossary of aviation terms. This glossary is built from a combination of official, quasi-official, and proprietary sources (including original material that we develop oursselves). Uniquely, we often provide multiple definitions of a given term so that you can find that which best applies to you. In order to maximize your learning efficiency, this glossary (and similar ones for our international users) is incresingly fully integrated into our aviation learning apps, including our FAA written test prep and FAA practical test prep software and apps. If you like this glossary, you'll love them with their polished learning environments and world's best and clearest content (please do give them a try.).

Retreating Blade
Retreating Blade
The blade on a helicopter rotor whose tip is moving in the direction opposite to that in which the helicopter is moving.
source: FAA Aviation Maintenance Technician Airframe Handbook (FAA-H-8083-31)
Any blade, located in a semicircular part of the rotor disk, in which the blade direction is opposite to the direction of flight.
source: FAA Helicopter Flying Handbook (FAA-H-8083-21A)
The rotor blade that is moving aft with the ongoing airstream caused by forward flight of the aircraft. For most gyroplanes, the retreating blade is on the left side of the aircraft. The retreating blade has less relative airspeed than the advancing blade. At higher airspeeds and low Rotor RPM, the retreating blade can possibly stall more easily than the advancing blade – resulting in Flap.
source: Glossary of Gyroplane Terms

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