Page 657 - PPL-engelsk 2025

Flight performance and planning

On the computer we can read how much of the wind is headwind = the distance

from the horizontal line to the middle of the metal hole on the wind arm

(grommet) = 8 kt.

With a computer without wind arm it

looks like this:

Set wind direction 210 under index.

Place center dot/grommet above wind

speed 16

Place a mark at wind speed 0

Rotate the rotation window so that

runway direction 27 is under index

Slide the slider so that your mark is on the

0 line

Read crosswind to 14 kt (distance

horizontal) (headwind 8 kt: distance

vertical)

7.9.2.13 Calculating glide distance

On our route we will be flying over water and other areas where we cannot find

safe places to land in the event of an engine failure.

The air traffic regulations state regarding flight altitudes that the flight must be

carried out at an altitude that, in the event of an engine failure, allows us to land
without endangering people on land or water.

Consider the route from where we enter Aarhus until we are over land over
Djursland. Here we must be sure to have glide distance.

Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 657