Wing Basics
This imaginary straight line joins the leading and trailing edges of a wing.
The chord
The smooth airflow near the front of the wing is called this layer.
Laminar Layer
Conventional airfoils are thickest at this percentage of the chord.
25% of the chord
This aircraft commonly has a high aspect ratio wing.
A glider
Wing twist is designed to improve these characteristics.
Stall characteristics
The average chord of a wing is called this.
Mean Aerodynamic chord
This layer forms farther back on the wing after airflow slows because of skin friction.
Turbulent layer
Laminar flow airfoils are thickest at this percentage of the chord.
50% of the chord
This is the angle at which the wing is permanently attached relative to the aircraft's longitudinal axis.
The angle of incidence
If the wing root stalls before the tip, these controls remain effective longer.
Ailerons
Aircraft designed for high speeds usually have this type of airfoil.
Thin Airfoil
As airspeed and angle of attack increase, this point moves forward.
Transition point
These are the three general wing planforms.
Rectangular, eliptical, and delta
Name one thing affected by the angle of incidence.
Flight visbility,Takeoff, landing,
These devices reduce induced drag by limiting wing-tip vortices.
Winglets
Aircraft designed to fly slowly usually have this type of airfoil.
Thick Airfoil
This force causes the boundary layer to slow down and become turbulent.
Skin Friction
This is the relationship between wing span and average chord.
Aspect Ratio
Decreasing the angle of incidence at the wing tip is called this
Washout
Another method of reducing wing-tip vortices is installing these.
Wing tip fuel tanks
This thin layer of air lies directly over the surface of the wing.
Boundary Layer
Laminar flow airfoils reduce this aerodynamic force.
Drag
High aspect ratio wings produce more lift with less of this type of drag.
Induced drag
Increasing the angle of incidence at the wing tip is called this.
Wash In
This wing-tip modification also helps reduce induced drag.
Drooping the wing tip