Alpha
The upward force that pushes an airplane into the air.
What is lift?
Describes how much material an object contains.
What is mass?
Describes the curviness of an airfoil and is the distance between the chord and camber lines.
What is camber?
The pulling effect that slows an aircraft.
What is drag?
As the angle of attack increases, the boundary layer starts to separate and the air flows in all kinds of directions..
What is turbulent flow?
A mixture of gases.
What is air?
The tendency of an object to resist a change in motion.
What is inertia?
The force which moves an aircraft forward.
What is thrust?
A certain angle of attack at which the flow of air on the airfoil changes abruptly and sharply reduces lift.
What is the critical angle of attack?
The force exerted on an object by gravity.
What is weight?
A substance that has no fixed shape, yields easily to external pressure, and flows easily.
What is fluid?
The angle between the chord line of the airfoil and the direction of the relative wind.
What is the angle of attack?
A sudden reduction in lift when the critical angle of attack is reached or exceeded.
What is the boundary layer?
The resistance to motion of one object moving relative to another.
What is friction?
Any surface that aids in creating lift.
What is an airfoil?
The act of increasing speed or velocity.
What is acceleration?
At low angles of attack, the boundary layer stays attached and air flows smoothly over the wing.
What is laminar flow?
A line from the leading edge to the trailing edge of the airfoil.
What is a chord line?
A line that is equal distance at all points from the upper and lower edges of the airfoil along the entire length.
What is a camber line?
How the air is flowing in relation to the airfoil.
What is the relative wind?
A sudden reduction in lift when the critical angle of attack is reached or exceeded.
What is a stall?