Basic Aerodynamics Flashcards
Ornithopter
A heavier than air flying machine that produces lift by flapping its wings. No practical ornithopter has been built.
Center of pressure
The point on the cord line of an airfoil where all of the aerodynamic forces are considered to be concentrated.
Lift produced by a body displacing a greater weight of air than its own weight is called…
Aerostatic lift
Lift produced by the reaction caused when a mass of air is deflected downward is called…
Aerodynamic lift
The lowest layer of our atmosphere is called the..
Troposphere
The layer of our atmosphere that is typified by the temperature of the air remaining constant as the pressure continues to drop is called the…
Stratosphere
The type of altitude measurement used to determine the amount of lift produced by an airfoil or the performance of an aircraft engine is…
Density altitude
The principle of physics that states that if the total energy in the air moving over an airfoil remains constant, any increase in its velocity will result in a corresponding decrease in its pressure is called…
Bernoullis principle
Three axes about which an aircraft can rotate are…
- Longitudinal or roll
- Lateral or pitch
- Vertical or yaw
