Helicopter flight is based on the same four aerodynamic forces as fixed-wing aircraft— —but generates them through rotating airfoils rather than a fixed wing moving forward. Core Aerodynamic Principles
: In forward flight, the "advancing" blade (moving with the flight direction) experiences higher relative wind speed than the "retreating" blade. This creates unequal lift across the rotor disc, which is balanced by blade flapping , allowing blades to move up and down to equalise lift. Primary Flight Controls Principles of Helicopter Flight
A pilot manages these forces using three main inputs that adjust the of the rotor blades: Principles Of Helicopter Aerodynamics - ftp.arcchurches.com Helicopter flight is based on the same four