Lift Augementation

Question 1

If you extend your flaps more than the intended setting . I.e. 30 instead of 15

Answer 1

You increase lift making capabilities and therefore reduced the amount of speed needed for landing . Reducing the speed means you need to sustain a higher AoA which means a larger pitch up so tail strike is more likely

Question 2

Cl is

Answer 2

1/v^2

Question 3

When the lift coefficient equals zero on a symmetrical aero foil

Answer 3

No nose pitching moment exists

Question 4

Trailing edge flap extension will

Answer 4

Decrease critical angle of attack and increase the value of cl max

Question 5

For cambered aerofoils

Answer 5

Thé Cp moves forward as angle of attack increases and moves backwards as angle of attack decreases

Question 6

Increasing sweepback

Answer 6

Increases stall speed

Question 7

If the thrust line is above the CG

Answer 7

Pitch down and can have a stabilising effect

Question 8

During a straight steady descent

Answer 8

Lift is less than weight because lift needs to balance the weight component perpendicular to the flight path

Question 9

Turn radius

Answer 9

Tas^2/gtan theta