Principles of Flight Vocabulary Flashcards
What is Lift?
Upward force created by an airfoil when it is moved through the air.
What is the upward force created by an airfoil when it is moved through the air called?
Lift
What is an Airfoil?
Any surface designed to obtain reaction such as lift from the air through which it moves.
What is a surface designed to obtain reaction from the air called?
An Airfoil
What is the Angle of Attack?
The acute angle formed between the chord line of an airfoil and the direction of the air striking it.
What is the term for the acute angle formed between the chord line of an airfoil and the direction of the air striking it?
The Angle of Attack.
What is the Chord Line?
An Imaginary straight line joining the leading and trailing edges of an airfoil, where the end points represent the maximum radius/length.
What is the term for the imaginary straight line joining the leading the trailing edges of an airfoil?
The Chord Line.
What is the Camber?
The curvature of an airfoil from leading to trailing edge.
What is the term for the curvature of an airfoil from leading to trailing edge?
The Camber
What is the wing platform?
The shape or form of a wing, viewed from above.
What is the term for the shape or form of a wing when viewed from above?
The wing platform
What is Bernoulli’s Principle?
At points where the speed of a fluid (liquid or gas) increases, its internal pressure decreases.
What principle states that at points where the speed of a liquid or gas increases, its internal pressure decreases?
Bernoulli’s principle.
What is Newton’s Third Law of Motion?
For every action, there is an equal and opposite reaction.
What law states that for every action, there is an equal and opposite reaction?
Newton’s third law of motion.
What is relative wind?
The direction of airflow produced by an object moving through the air.
What is the direction of airflow produced by an object moving through the air called?
Relative wind
What is Density Altitude (DA)?
The altitude in the standard atmosphere corresponding to a particular value of air density.
What is the altitude in the standard atmosphere corresponding to a particular value of air density?
Density Altitude.
What is Autorotation?
A helicopter maneuver when the engine fails to power the main rotor. The flow of air provides enough lift for a controlled descent.
What occurs when a helicopter engine fails to power the main rotor, resulting in a controlled descent?
Autorotation.
What is the Pitot-Static system?
Aircraft equipment measuring speed and altitude information.
What is the system of aircraft equipment measuring speed and altitude information?
The Pitot-Static system.
