Fundamentals Of Flight Flashcards
What is acceleration?
The rate of change of the speed and/or velocity of matter with time.
What are The three types of motion pertaining to flight?
Acceleration, speed and velocity
What is speed?
The rate of movement in terms of distance measured in an allotted amount of time.
What is velocity?
The quickness or speed of an object in a given time and direction.
What is Newton’s first law of motion?
Inertia - an object 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.
What is Newton’s second law of motion?
Force - change in motion or acceleration, is directly proportional to the amount of force and inversely proportional to the mass of the object being moved.
What is Newton’s third law of motion?
Action and reaction - for every action there is an equal and opposite reaction.
What is bernoulli’s principle?
When a fluid flowing through a tube reaches a constriction or a narrowing of the tube, the speed of the fluid passing through is increased and its pressure decreased.
How is lift accomplished?
By the difference in airflow across the airfoil.
What is lift?
The force that acts in an upward direction.
What is weight?
The force of gravity acting downward.
What is drag?
The force that tends to hold an aircraft back. Caused by disruption of air.
What is thrust?
The force developed by the aircraft’s engine. It acts in the forward direction.
What is the longitudinal axis and it’s associated autopilot axis and flight control?
Imaginary line down center (nose to tail,) roll, ailerons.
What is the lateral axis and it’s associated autopilot axis and flight control?
Imaginary line running parallel to wings, pitch, elevators
What is the vertical axis and it’s associated autopilot axis and flight control?
Imaginary line running from top to bottom of aircraft, yaw, rudder
What is a flap and its function?
Leading or trailing edge flight surface. Creates extra lift for takeoff and landing by lengthening the top section of the wing.
What is the function of a spoiler?
Decreases wing lift by destroying smooth air flow over wing surfaces.
What are speed brakes used for?
Used for reducing the speed of the aircraft.
Where are slats and what are they used for?
Attached to the leading edge of the wing. When open at low air speeds, they improve lateral control handling characteristics. (Boundary layer control.)
What is collective?
When the blades of a helicopter increase the angle of attack or pitch to generate lift.
What is angle of attack and how is it measured?
The angle at which the airfoil or fuselage meets the flow of air. Measured in units instead of degrees.
What is autorotation?
A method that allows a helicopter to land without using engine power.
What are the components of a hydraulic system?
Pump Actuating unit Resevoir Tubing Selector valve
What are some of the main components of landing gear?
Shock strut assembly Tires Wheel brake assembly Retracting and extending mechanisms Side struts and supports
What is the purpose of the shock strut assembly?
It absorbs the shock that would otherwise be sustained by the aircraft.
What is the purpose of tires?
Allow the aircraft to roll easily and provide traction during takeoff and landing.
What is the purpose of brakes?
To slow and stop. And to prevent rolling while parked.
What is the purpose of side struts and supports?
Provide lateral strength/support for landing gear.
