Fundamentals Of Flight Flashcards
What are the 3 types of motion pertaining to flight?
Acceleration
Speed
Velocity
What is motion?
The act or process of changing place or positions
What is acceleration?
Rate of Change in the speed or velocity of matter with time
What is speed?
Rate of movement in terms of distance measured in time
What is velocity?
The quickness or speed of an object in a given time and direction
What is newtons 1st law of motion?
(Inertia) an object at rest will remain at rest, or an object in motion will continue in motion at the same speed and in same direction until acted on by an outside force
What is newtons 2nd law?
(Force) 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 and inversely proportional to the mass of the object being moved
Newtons 3rd law?
For every action there is an equal and opposite reaction
Bernoullis principle?
Fluid flowing through a tube reaches a narrowing the speed is increased and pressure is decreased.
General lift of an airfoil is dependent on what?
The airfoils ability to create circulation in the airstream and develop lifting pressure over the airfoil
What causes a wavelike effect to the wing?
The disruption in the flow of air due to the camber of the upper surface of the wing
How is lift accomplished?
The difference in airflow across the airfoil.
What are the forces affecting flight?
Lift
Weight
Drag
Thrust
What is lift?
The force that acts in the upward direction to support the aircraft in the air. This must be greater or equal to weight for flight
What is drag?
the force that tends to hold aircraft back
What causes drag?
Disruption of the air about the wings, fuselage, and all protruding objects
What is thrust?
The force created by the engines and acts in the fwd direction. Must be greater than or equal to drag
What are the aircraft axis?
Longitudinal
Lateral
Vertical
What is longitudinal axis?
An imaginary line running down the center of the aircraft (roll)
What is lateral axis?
Imaginary line running from wing tip to wing tip (pitch)
What is vertical axis?
Imaginary line from top to bottom (yaw)
What are the movable surfaces on a fixed wing ac?
Ailerons (roll) aileROLLons
Elevators (pitch) up and down
Rudders (yaw)
Non axis flight controls?
Flap: extra lift
Spoiler: spoils wing lift
Speed brakes: reduces speed by drag
Slats: lateral handling at low speeds
What is angle of attack?
Angle of the airfoil chord at which it meets the flow of air
What is autorotation?
A means of safely landing an aircraft without use of engine power. The use of the collective downward allows rotor to maintain rpm
What are the basics of a hydraulic system?
Reservoir Pump Tubes Selector valve Actuating unit
Basics of landing gear
Shock strut Tires Brakes Retracting and extending landing gear Side struts and supports
