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Southwest Airlines > Notes > Flashcards

Notes Flashcards

1
Q

3 Laws of Motion

A

Sir Isaac Newton
1665

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2
Q

Evangelists Torricelli
1640

A

Discovered that air has weight when experimenting w/ measuring mercury.
Air put pressure on the mercury.

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3
Q

Forces of Flight (4)

A

Lift-upward
Drag-Backward
Weight-Downward
Thrust-Forward

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4
Q

Airplane Wings

A

Pressure on top of wings is less than pressure on bottom of wing-
Difference in pressure creates a force on wing that lifts it into the air.

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5
Q

Airplane Wings

A

Shaped to make air move faster over the top of the wing.
When air moves faster, the pressure of air decreases.

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6
Q

Balloon full of Hot Air

A

Rises up because the hot air expands inside the balloon. When it cools and let out the balloon comes back down.

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7
Q

Hot Air

A

Expands and spreads out and becomes lighter then cool air.

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8
Q

Francesco Lana

A

Used discovery to plan for airship in 1600’s.
Design was never tried.

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9
Q

Regimes/Speeds of flight

A

Supersonic-760-3500 mph
Mach 1-Mach 5
Concorde-can fly up to 5x speed of sound

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10
Q

Regimes/Speeds of flights

A

Subsonic (Boeing 747)
350-750 mph
Most commercial jets used today just below speed of sound

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11
Q

Regimes/Speeds of flight:

A

General Aviation
100-350 mph
*seaplanes
*crop dusters
*2/4 seat passenger planes

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12
Q

Mach 1

A

Plane traveling at speed of sound
760 mph
Mach 2=twice the speed of sound

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13
Q

Sonic Boom

A

Caused by a sudden change in air pressure
when plane travels faster than sound=supersonic speed

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14
Q

Travel faster than speed of sound

A

Plane must break through shock wave
Creates sonic boom

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15
Q

Plane traveling speed of sound

A

The air waves gather together and compress the air in front of plane to keep it moving forward.
Compression causes shockwave to form

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16
Q

Sound Waves

A

Travel at speed of about 750 mph at sea level

17
Q

Sound

A

Made of molecules of air that move and push together to form sound waves.

18
Q

Elevators

A

On the tail section used to control the pitch of the plane.
Pilot uses control wheel to raise and lower elevators by moving back and forward.

19
Q

Rudder

A

Works to control yaw at the plane.
Pilot moves rudder left and right with left and right pedals.

20
Q

Ailerons

A

Turning control wheel clockwise raises the right aileron and lowers the left aileron.
Which rolls plane to the right.

21
Q

Pilot controls plane w/ several instruments.

A

Ailerons-raise and lower the wings.
Pilot uses a control wheel to control the roll of the plane.

22
Q

Pilot controls plane w/ several instruments.

A

Throttle-controls engine power.
Push throttle-increases power
Pull throttle-decreases power

23
Q

Yaw

A

Turning of a plane
Rudder-turned to one side-plane moves left or right
Ailerons used w/ ailerons used together to make a turn
Plane’s nose is pointed same direction of rudder

24
Q

Elevators

A

Lowering elevators causes airplane nose to drop-sending plane down
Raising causes planes to climb

25
Q

Pitch

A

Makes a plane descend or climb
Pilot adjusts the elevators on the tail to make phone descend or climb

26
Q

To roll the plane to right or left

A

The ailerons are raised on one wing and lowered on the other
Wing with lowered aileron rises
Wing with raised aileron drops

27
Q

Regimes/Speeds of flights

A

Hypersonic
3500-7000mph
Mach 5-Mach 10
Rockets-Space Shuttle travel 5-10x speed of sound

28
Q

Air is a mixture of different gasses

A

Oxygen
Carbon dioxide
Nitrogen

29
Q

Moving air has a force that will

A

Lift kites and balloons up and down

30
Q

Air pressure

A

Created by the molecules moving around

31
Q

What is air?

A

A physical substance which has weight.
Molecules which are constantly moving

32
Q

3 Laws of Motion

A
  1. If object not moving it wont start moving by itself. If it is moving it will not stop or change direction unless something pushes it.
33
Q

3 Laws of Motion

A
  1. Objects will move farther and faster when pushed harder
  2. When object is pushed in 1 direction there is always resistance of the same size in opposite direction

Southwest Airlines (27 decks)

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