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Navigation

When you start your correction, you are at 20 NM, and you are 1 NM OFF

track.

So you have 40 NM to the 60 NM. That is, you have 40 NM to go 1 NM to the

right. This corresponds to the fact that at 60 there are 60/40 = 1.5 NM.

So you have to go another 1.5° to the right. So you have to make a correction

o
o
of 3 + 1.5 = 4.5° to the right.

The picture here shows that

when we go 60 horizontally from
o
A (i.e. after a correction of 3 ),
the distance down to the blue

dotted line will be 1.5 NM, i.e.

1.5°.

This is ratio calculation and mental calculation, but you can also use the

navigation computer to help you solve the problem.

Put 40 at 1 (because you have

40 NM to go 1 NM to the right).

Then at 60 you can read 1.5.

9.11.4.4 Changing the flight plan

Remember, if you are or have been "on a picnic" and you cannot meet the times

you have stated in your ATC flight plan or times you have in the current flight

plan, you must provide new expected times for ATC if the deviation is ± 2
minutes.

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Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 912