Landing Limitations

Question 1

On the landing limitation graph, you can select from various configurations, why is this so?

Answer 1

Different configurations and combinations will give you different landing performance. E.g. anti-skid off on a wet runway would be similar to landing on a shorter but dry runway

Question 2

If the landing conditions are not specified, what configuration would you assume the aircraft to be in?

Answer 2

Anti-skid and nosewheel brakes both ON

Question 3

If standing water is present, do you need to consider the wet line on the landing graph as well?

Answer 3

No, do not ‘double dip’! Once you apply the standing water correction there is no need to add a wet runway penalty.

Question 4

When calculating landing performance with forecast conditions, can you use slope and wind?

Answer 4

NO, if you have a forecast, assume no slope and no wind as this is the safest option. You CAN use wind and slope IF you have AMBIENT conditions.

Question 5

Why are there two different landing graphs?

Answer 5

One is a performance limit, and the other is a structural limit.

Question 6

What is the MLW with 30° flap?

Answer 6

72600kg

Question 7

What is the MLW with 40° flap?

Answer 7

64650kg

Question 8

What runway distance usually requires 40° flap to be used?

Answer 8

1450mt (provided no structural limits are exceeded)

Question 9

What does the quick turn-around graph calculate?

Answer 9

The maximum landing weight which you need to be below before waiting 44 minutes for the brake to cool down. E.g. if 71000kg was the limit, you can land at 70999, but not 71000.

Question 10

What consideration do you need to implement when landing off an ILS in calculating landing distance available.

Answer 10

Reduce distance by the lesser or 13% the LDA or 300m.