Chapter 6 - Lift Flashcards

1
Q

Total reaction =

A

Lift + Drag

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2
Q

Lift to the airflow is

A

Perpendicular

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3
Q

Drag to the airflow is

A

Parallel

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4
Q

Life acts through

A

The centre of pressure

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5
Q

Weight acts through

A

The CofG

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6
Q

CL Max =

A

Stalling AOA of a wing

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7
Q

x3 Factors effect CL

A

Camber
AOA
Thickness

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8
Q

Typical stalling angle is

A

16 degrees

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9
Q

What happens to CL max if we camber the wing

A

increases

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10
Q

What are the effects of TE flap on AOA and CL

A

CL increases

Max AOA decreases

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11
Q

How can we change CL in the cruise

A

AOA

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12
Q

If we double the Velocity what happens to CL

A

1/4

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13
Q

If we half the Velocity what happens to CL

A

x4

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14
Q

What does CL mean in terms of lift produced

A

Per unit area + Unit dynamic Px

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15
Q

What do you need to consider with an increasing TAS when climbing

A

Density is decreasing

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16
Q

What is the three step approach

A

Work out what is increasing or decreasing by writing the equation out

Then write a = a b/b if requiring increase - larger number on top

Is speed a variable - No ok no more action req

Yes - have two speeds ^2, need a speed ^root