BASICS OF FLIGHT

Distance from the Reference Datum Line

Weight x Arm usually divided by 1000

Total Moment divided by Total Weight

• Thrust
• Drag
• Weight
• Lift

Angle that the wing goes through the RELATIVE wind

Line straight through wing from leading to trailing edge

• Parasite
• Induced

• Form
• Interference
• Skin Friction

• Torque Effect
• Gyroscopic Precession
• Spiraling Slipstream
• P-Factor

Excess Thrust

Center of Lift - aft of CG

Upward Angle of Airplanes Wings

Side of fuselage and vertical stabalizer creating lateral stability

Increases as Airspeed Decreases

Increases with Airspeed

Initial Tendency to be stable

Tendency to return to stable condition over time

Angle that the wing is mounted to the fuselage

Wing is twisted so outer wing stalls later

• Plain - increases lift/drag - changes wing
• Split - increases lift/drag - changes bottom wing
• Slotted - increases lift/drag - increases wing area - airflow
• Fowler - increases lift/drag - increases wing area

Curve of airfoils - upper/lower surfaces

Relationship between length & width of wing

Shape of wing

• As velocity increases, pressure decreases
• Velocity on upper surface is greater than lower

EXCEEDING THE CRITICAL ANGLE OF ATTACK

Ratio of load supported by wings to the actual amount supported

Total Load Supported divided by Total Weight

G FORCES