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Flight performance and planning

It is not stated how long the landing distance is when landing with 20⁰ flaps, but

our approach will be at a speed that is approximately 10% higher.

This will mean that we have to add 1.1² to the landing distance. This is

approximately 20%.

The landing distance according to the table is midway between 1265 and 1295

o
feet (the two red rings). We land with 20 flaps, which gives a 10% higher
approach speed. So, it requires 20% more runway.

This gives 1280 feet + 20% = 1540 feet. Converted to meters, this is 470 meters.
When we have 1200 meters at our disposal, there are no problems.

7.9.2.12 Calculation crosswind component

The problem that may arise is that we have the wind coming in from the side

during landing.

We can calculate the crosswind component using the computer.

Here you will first get the method on the computer with wind arm. Without wind

arm follows later.

Set runway direction 27 under index 270.

Set wind direction 210 with L-wind arm.

The horizontal line should intersect

where we have 16 kt.

The cross wind is read as 14 kt.

A crosswind component of 14 Kt means

that the right tactics must be found so that you do not blow off the runway.

Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 656