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BASICS OF FLIGHT
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Arm
Distance from the Reference Datum Line
Moment
Weight x Arm usually divided by 1000
CG
Total Moment divided by Total Weight
Four Forces of Flight
Thrust
Drag
Weight
Lift
Angle of Attack
Angle that the wing goes through the
RELATIVE
wind
Chord Line
Line straight through wing from leading to trailing edge
Two Types of Drag
Parasite
Induced
Types of Parasite Drag
Form
Interference
Skin Friction
Left Turning Tendencies (4)
Torque Effect
Gyroscopic Precession
Spiraling Slipstream
P-Factor
What enables an airplane to climb?
Excess Thrust
Center of Pressure
Center of Lift - aft of CG
Dihedral
Upward Angle of Airplanes Wings
Keel Effect
Side of fuselage and vertical stabalizer creating lateral stability
Induced Drag
Increases as Airspeed Decreases
Parasite Drag
Increases with Airspeed
Positive Static Stability
Initial Tendency to be stable
Positive Dynamic Stability
Tendency to return to stable condition over time
Angle of Incedence
Angle that the wing is mounted to the fuselage
Wing Twist
Wing is twisted so outer wing stalls later
Flap Types (4)
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
Camber
Curve of airfoils - upper/lower surfaces
Aspect Ratio
Relationship between length & width of wing
Planform
Shape of wing
Bernoullis Principle
As velocity increases, pressure decreases
Velocity on upper surface is greater than lower
Stall due to:
EXCEEDING THE CRITICAL ANGLE OF ATTACK
Load Factor
Ratio of load supported by wings to the actual amount supported
Total Load Supported divided by Total Weight
G FORCES
Author
MarkBeaty
ID
117445
Card Set
BASICS OF FLIGHT
Description
Basics
Updated
11/17/2011, 5:33:04 AM
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