Ground School

Introduction to Aerodynamics

The four forces

-Lift
-Weight
-Thrust
-Drag

Airfoils

-Symmetrical vs. Asymmetrical
-Leading edge
-Trailing edge
-Chord line
-Relative wind
-Angle of attack
-Bernoulli's Principle
-Tip path plane

Factors affecting lift and drag

-Surface area
-Angle of attack
-Velocity of airflow
-Air density
-Blade stall

The three axes

-Longitudinal/Roll
-Lateral/Pitch
-Vertical/ Yaw

Torque

-Newton's third law of motion
-Tail rotor thrust
-Controlling torque

Rotor systems

-Fully articulated
-Semi-rigid
-Rigid

Vibrations

-Resonance; sympathetic, ground resonance
-Low frequency vibrations
-Medium frequency vibrations
-High frequency vibrat

This lesson was last edited 1 month, 1 week ago.
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