Rotor disk
From RC Helicopter Wiki
The rotor disk is the imaginary disk formed by the main rotor blades as they rotate at high speed. Also referred to as the tip path plane---the circle that the blade tips are following at a given point in time.
The rotor disk is the imaginary disk formed by the main rotor blades as they rotate at high speed. Also referred to as the tip path plane---the circle that the blade tips are following at a given point in time.
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