Aerospace & Aviation Ch. 2 Study Set
Pitch
Vertical motion of an aircraft.
Lift is opposite of...
Weight
Symmetrical Airfoil
When an airfoil has identical upper and lower surfaces, it is symmetrical and produces no lift at an AOA of zero degrees. The wings of very high performance aircraft tend to be symmetrical.
How do flying fish fly?
Wind passing under and over the wings creates lift, which propels the fish through the air.
Thickness
(n.) the distance between the opposite edges of something; how thick something is
Drag
Resistance of the air (technically a fluid) against the forward movement of an airplane.
Camber
A measure of the curvature of the airfoil.
Airfoil
Any surface, such as a wing, which provides aerodynamic force when it interacts with a moving stream of air. Basic form of the wings.
Yaw
A side-to-side motion of the nose of the aircraft.
Asymmetrical Airfoil
Airfoil that dose not have the same shape (camber) on top and bottom. Less stable, More lift
Glider
An aircraft that is designed to fly without an engine.
Bernoulli's Principle
As the speed of a fluid increases, its pressure decreases.
Otto Lilienthal
Built gliders that could be piloted
Thrust is opposite of...
Drag
George Cayley
Flew the first successful glider
Max Camber
Max distance between mean camber line and chord line
Mean Camber
The Mean Camber Line is a line drawn halfway between the upper and lower surfaces. The mean camber is used to define the upper and lower part of an airfoil.
Angle of Attack
The acute angle between the direction of the relative wind and the chord of an airfoil.
Roll
The clockwise or counterclockwise rotating motion of an aircraft.
Leading Edge
The front, usually rounded, edge of an airplane wing or airfoil.
Trailing Edge
The last point on an airfoil that interacts with the airflow around the wing.
What was Da Vinci's result of his research?
The orinthopter
What idea did Da Vinci develop?
The parachute
Thrust
a force that moves an object in the direction of motion (prop. jet engine, or rocket)
How does angle of attack affect lift?
as the angle of attack increases, lift increases
What caused Da Vinci's interest in flight?
birds
Chord
connects leading edge to trailing edge
aerodynamic stall
critical angle of attack
Daedalus and Icarus
flew too close to the sun
What are the four forces of flight?
lift, weight, thrust, and drag
Orville and Wilbur Wright
made the first powered, controlled flight
Weight
the force of gravity on an object
Lift
the force that holds an airplane in the air (wings)
Planform
the shape of the wing viewed from above
What is gliding?
to move smoothly and continuously along, a glider cannot create thrust
Span
wingspan
