Page 658 - PPL-engelsk 2025

Flight performance and planning

We can neither land in the city nor on water.

There is a total of 10 NM between the two points where we CAN land.

In the middle there are then 5 NM to each point.

Note the ingenious method for measuring

distances on a map; if the map is enlarged

or reduced (like here).

You measure the distance between the two

points and plot it along a meridian and

count the NM (here 10 NM).

You will need to measure according to this

method for the theory test!

Knowledge from the subject NAVIGATION, which says that between each arc

minute along a meridian there is 1 NM, can be used here.

7.9.2.14 Calculation glide height

We must be able to glide from the center and out of the area and land safely.

We must therefore be able to glide 5 NM.

From the table we can read

that in order to glide 5 NM,

3500 ft of flight altitude is

required.

When we want to get to the coast or the edge of the city at 1500 feet, we must

add 1500 feet on top of the 3500, so that gives 5000 feet.

Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 658