Chapter 6 - Lift

Question 1

Total reaction =

Answer 1

Lift + Drag

Question 2

Lift to the airflow is

Answer 2

Perpendicular

Question 3

Drag to the airflow is

Answer 3

Parallel

Question 4

Life acts through

Answer 4

The centre of pressure

Question 5

Weight acts through

Answer 5

The CofG

Question 6

CL Max =

Answer 6

Stalling AOA of a wing

Question 7

x3 Factors effect CL

Answer 7

Camber
AOA
Thickness

Question 8

Typical stalling angle is

Answer 8

16 degrees

Question 9

What happens to CL max if we camber the wing

Answer 9

increases

Question 10

What are the effects of TE flap on AOA and CL

Answer 10

CL increases

Max AOA decreases

Question 11

How can we change CL in the cruise

Answer 11

AOA

Question 12

If we double the Velocity what happens to CL

Answer 12

1/4

Question 13

If we half the Velocity what happens to CL

Answer 13

x4

Question 14

What does CL mean in terms of lift produced

Answer 14

Per unit area + Unit dynamic Px

Question 15

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

Answer 15

Density is decreasing

Question 16

What is the three step approach

Answer 16

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