Aerodynamics Flashcards
Left Turning Tendancies
P-Factor
Torque
Spirling Slipstream
Gyroscopic Precession
P-Factor
Asymmetrical thrust due to the descending blade taking a bigger bite of the air
Torque
Newton’s 3rd Law. “For every action there is an equal and opposite reaction.” Propeller rotating in one direction, the aircraft is trying to turn in the opposite direction
Spirling Slipstream
High speed rotation of the prop causes a slipstream that corkscrews around and strikes the vertical fin on the left side of the aircraft causing a yawing motion to the right
Gyroscopic Precession
Applied force manifested 90 in the direction of rotation from where the force is applied
Load Factor Limits
Normal: +3.8 to -1.52
Utility: +4.4 to -1.76
Acrobatic: 6 to -3