Fundamentals of Flight Flashcards
Acceleration
Rate of change of the speed and or velocity of matter with time
Speed
Rate of movement in terms of distance measured in an allotted amount of time
Velocity
Quickness or speed of an object in a given time and direction
Newton’s First Law
An object at rest will remain at rest, or an object in motion will continue in motion at the speed and in the same direction, until acted upon by an outside force
Newton’s Second Law
If an object moving with uniform speed is acted upon by an external force, the change of motion, or acceleration, will be directly proportional to the amount of force
Newton’s Third Law
For every action there is an equal and oppsite reaction
Bernoulli’s Principle
Fluid passing through the constriction is increased and it’s pressure decreased
Lift
Upward direction
Weight
Gravity acting downward
Drag
Holds an aircraft back
Thrust
Forward direction
Longitudinal axis
Imaginary line running down the center of the aircraft between the nose and tail
Lateral axis
Imaginary line running parallel to the wings
Vertical axis
Imaginary line running from the top to the bottom of the aircraft
Ailerons (roll)
Longitudinal axis
Elevators (pitch)
Lateral axis
Rudder (yaw)
Vertical axis
The cyclic stick (roll/pitch)
Tilts the plane of the rotor blades forward, aft or sideways giving the helicopter its directional motion
Tail rotor (yaw)
Increases or decreases the amount of horizontal thrust the tail rotor produces
Collective
Lift may be changed by collectively increasing the angle of attack or pitch of the rotor blades
Angle of Attack
The angle at which the airfoil or fuselage meets a flow of air
Basic aircraft hydraulic system
Reservoir to hold hydraulic fluid, pump to provide a flow of fluid, tubing to transmit the fluid, selector valve to direct the flow of fluid, an actuating unit to convert the fluid pressure into useful work
