Fundamentals of flight Flashcards

1
Q

What is motion?

A

The act or process of changing place or position

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2
Q

What are three types of motion?

A
  • linear(moves in a line or same direction)
  • angular(moves in a circle)
  • general(combo of both)
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3
Q

define force

A

something that causes change in the motion of an object

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4
Q

Define inertia

A

Willingness of an object to remain at rest or to continue in motion unless acted upon by an outside force

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5
Q

Define acceleration

A

Rate of change of the speed and velocity of matter w/ time

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6
Q

Define Velocity

A

Quickness of speed of an object in a given time and direction

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7
Q

Define speed

A

Rate of movement in terms of distance measured in an allotted amount of time

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8
Q

Newtons first law?

A

An object at rest will remain at rest an object in motion will continue in motion

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9
Q

newtons second law?

A

an object moving with uniform soeed is acted upon by an external force,then change of motion.will be directly proportional to the amount of force &inversely proportional to the mass of the object moved

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10
Q

newtons 3rd law?

A

for every actin there is an equal and opposite reaction

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11
Q

bernoullis principle?

A

When a fluid flowing through a tube reaches a constriction or narrowing of the tube,the speed of the fluid passing through the constriction is increased & pressure is decreased

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12
Q

Define lift

A

Force that acts in an upward direction to support the aircraft in the air

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13
Q

Define weight

A

Force of gravity acting downward on the aircraft & everything on the aircraft

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14
Q

Define drag

A

Force that tends to hold an aircraft back

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15
Q

Define Thrust

A

The force developed by the aircrafts engine & it acts in the forward direction

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16
Q

Longitude

A

the imaginary line running down the center of aircraft

17
Q

Latitude

A

imaginary line running parallel to wings

18
Q

vertical

A

Imaginary line running top to bottom of aircraft

19
Q

ailerons control what axis?

A

longitudinal

20
Q

Elevators control what axis?

21
Q

Rudder controls what axis?

22
Q

What does the cyclic stick do?

A

Tilts plane forward,aft or sideways

23
Q

what does the tail rotor do?

A

Counteracts the torque of main rotor by increasing/decreasing the amount of horizontal thrust the tail rotor produces

24
Q

Define flap

A

Creates extra lift by lengthening the top section of the wing resulting in max. lift to reduce takeoff runs & landing rollout

25
define spoiler
used to decrease or spoil wing lift by destroying the smooth flow of air over the wing surfaces
26
define speed brakes
Hinged of moveable control surfaces used for reducing the speed of an aircraft
27
Define slats
Moveable control surfaces attached to the leading edge of the wing
28
Define an airfoil
Air that creates lift
29
Whats the difference between a fixed wing airfoil and a helo airfoil?
A fixed wing pulls air through the engine creating thrust to lift the plane. Helo pushes air down through the rotors to lift up
30
Define collective
Lift may be changed by collectively increasing the angle of attack or pitch of the rotor blades
31
Define AOA
The angle at which the airfoil or fuselage meets a flow of air
32
Define autorotation
Method of allowing a helicopter to land safely from altitude w/o using engine power
33
Explain the 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 of fluid - An actuating unit to convert the fluid pressure into useful work
34
What are the components of landing gear?
- Shock strut assembly - tires - wheel brake assembly - retracting and extending mechanism - side struts and supports
35
What is autorotation?
Method of allowing a helicopter to land safely from altitude w/o using engine power