![]() The forces which govern the coning angle are. To maintain the position of the helicopter with a decrease in air density, the pilot must increase. the drag forces on the blade change and the angle of attack (AOA) changes. the pitch angle of the blade always reduces. When a blade moves about the flapping hinge. pitch nose down with an increase in forward airspeed. pitch nose up with an increase in forward in airspeed. pitch nose down with a decrease in forward airspeed. With the helicopter in forward flight, parasitic drag will cause the helicopter to. relative airflow and the angle of attack. Lift generated by a blade is proportional to the. angle between the chord line and relative airflow. between the chord line and relative airflow. between the spin axis and relative air flow. between the chord line and plane of rotation. Module 12.Helicopter Aerodynamics, Structures & Systemsġ2.01, Theory of Flight - Rotary Wing Aerodynamics.
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