aviation Flashcards
Newtons First Law of Motion
Willingness of an object to stay at rest or continue in motion. Inertia
Newtons 2nd law of Motion
acceleration of an object is dependent on the object and mass of the object
Newtons 3rd law of motion
for every reaction there an opposite and equal reaction
Bernoulli’s Principle
States that as the speed of a fluid increases the pressure decreases
The Airfoil
Part of an aircraft that produces lift as it passes through the air. Consists of leading, trailing, chord line, and camber
Airfoil of a fixed wing aircraft
wings
airfoil of a helicopter
rotor blades
Leading edge
front edge or surface of the airfoil
trailing edge
the rear edge or surface of an airfoil
chord line
an imaginary straight line from the leading edge to the trailing edge
Camber
the curve or departure from the chord line. from its leading to trailing edge of the airfoil
Relative Wind
the direction of the airstream in relation to the airfoil
Angle of Attack
the angle between the chord line and the relative wind
Lift is accomplished by
the difference in the airflow across the airfoil
Lift
force that acts in an upward direction.
Must be greater than or equal to weight for sustained flight
weight
force of gravity acting downward on the aircraft
thrust
acts in the forward direction.
must be greater than or equal to drag for flight to begin or sustained
Drag
holds an aircraft back
caused by the disruption of the airflow on the aircraft.
Longitudinal Axis
associated with roll, bank, turn.
axis runs fore and aft through the length of the aircraft
Lateral axis
associated with pitch.
pitch axis runs from the left to the right of the aircraft
Vertical Axis
associated with yaw.
axis runs from the top to the bottom of the aircraft.
fixed wing aircraft depends on what motion for lift
forward motion
