Landing

Question 1

Barrier height

Answer 1

50ft

Question 2

Speed at barrier height

Answer 2

VREF

Question 3

Relationship between l/d distance and l/d speed

Answer 3

5% increase in l/d speed = 10% increase in l/d distance

Question 4

VREF for a class B

Answer 4

Can’t be less than VMCL
Or
1.3 x Vso

Question 5

VREF for a class A

Answer 5

Can’t be less than VMCL
Or
1.23 x Vsro

Question 6

Greatest effect on stopping the a/c

Answer 6

Wheel brakes

Question 7

Anti skid

Answer 7

Abs for a/c

If an a/c has this then l/d distance will be shorter

Question 8

What will increase l/d distance

Answer 8

Wet, contamination, downslope, high alt, high temp, grass r/y

Question 9

Problems with reverse thrust

Answer 9

Decreases engine life

Picks up dirt from the ground and shoots it fwd - not a problem at high speed but low speed it could go into the engine

Question 10

Effect of high alt

Answer 10

As KE = 1/2mv2

For the same CAS l/d distance will be longer than at MSL as the V2 will be larger - take longer to slow down

Question 11

In planning, what to take into account for headwind and tailwind

Answer 11

Plan for 50% of headwind component

Plan for 150% of tailwind component

Question 12

The effect of downslope r/y

Answer 12

Up to 2% downslope - anymore - need authority permission

For class B - 5% extra distance for every 1% of downslope

For class A - do not consider slope within 2%

Question 13

Effect of wet

Answer 13

1.15 factor increase

Wet grass = 1.15x1.15 = 1.32

Question 14

LDA safety factors

Answer 14

Prop = 70% LDA (1.43)

Jet = 60% LDA (1.67)

LD needs to be greater than or equal to LDA