Fundamentals Of Flight Flashcards
Basic fundamental of aviation?
Motion
Motion?
The act or process of changing place or position; motion is movement.
How many types of motion pertaining to flight are?
Acceleration
Speed
Velocity
The quickness or speed of an object in a given time and direction?
Velocity
Acceleration?
The rate of change of the speed and or velocity if matter with time.
Speed?
The rate of movement in terms if distance measured in an allotted amount of time.
Laws of motion?
Newtons 1st Law
Newtons 2nd Law
Newtons 3rd Law
Bernouli’s Principle
Newton’s 1st Law?
An object at rest will remain at rest, or an object in motion will continue in motion at the same speed and in the same direction, until acted upon by an outside force.(inertia)
Newton’s Third Law?
(Action and reaction) for every action there is an equal and opposite reaction
Newton’s Second Law?
(Force) if an object moving with uniform speed is acted upon by external forces, the change if motion, or acceleration, will be directly proportional to the amount of force and inversely proportional to the mass of the object being moved.
Bernoulli’s Principle?
When a fluid flowing through a tube reaches a construction or narrowing if the tube, the speed of the fluid passing through the constriction is increased and it’s pressure decreased.
Lift?
The force that acts, in an upward direction, to support the aircraft in the air. Must be greater than or equal to weight if flight is to be sustained.
Weight?
The force of gravity acting downward on the aircraft and everything on the aircraft.
Drag?
The forces that tends to hold the aircraft back. Caused by disruption of air about the wings, fuselage or body, and all protruding objects on the aircraft.
Thrust?
The force developed by the aircraft a engine, and it acts in a forward direction
Longitudinal axis?
An imaginary reference line running down the center of the aircraft between the nose and tail.
Lateral axis?
An imaginary reference line running parallel to the wings.
Vertical axis?
An imaginary line running from top to bottom of the aircraft
Ailerons?
Roll longitudinal
Elevators?
Pitch lateral
Rudder
Yaw vertical
Cyclic stick?
(Roll/pitch) tilts the plane and changes direction of lift
Tail rotor?
(Yaw) counteracts torque of main rotor by increasing or decreasing the amount of horizontal thrust the tail rotor produces.
Creates lift by lengthening the top section of the wing resulting in maximum lift to reduce takeoff runs and landing roll out?
Flap (leading/trailing edge)
Used to decrease wing lift by destroying the smooth flow of air over the wing surface, creates a more predictable landing glides cope?
Spoiler
Hinged or movable control surfaces used for reducing the speed if the aircraft. Location varies on models of aircraft?
Speed brakes
Movable control surfaces attached to the leading edge of the wing?
Slats
Lift may be changed ________ by increasing the angle of attack or pitch of the rotor blades?
Collectively
Angle at which the airfield or fuselage meets a flow of air?
Angle of attack (AoA)
AoA is defined as?
The area between the chord line of the wing and the relative wind.
What is relative wind?
Direction of air stream in relationship to the wing.
AoA is measured in?
Units
A method of allowing the helicopter to land safely from altitude without using engine power?
Autorotation
Basic aircraft hydraulic system?
A reservoir to hold a supply of Hyd fluid
A pump to provide a flow of fluid
Tubing to transmit the fluid
A selector valve to direct the flow if fluid
An actuating unit to convert the pressure into useful work
Main landing gear components?
Shock strut assembly Tires Wheel brake assembly Retracting and extending mechanism Side strut supports
Provides lateral strength/support for the landing gear?
Side struts and supports
Used to slow and stop the aircraft, and prevent aircraft from rolling while parked?
Wheel brake assembly
All necessary hardware to electrically or hydraulically extend and retract the landing gear?
Retracting and extending mechanism
Allows aircraft to roll easily and provides traction during takeoff and landing?
Tires
Absorbs the shock that otherwise would be sustained by airframe?
Shock strut assembly
