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Navigation

9.11.4 Correction of course during flight

Normally, you will fly a planned route according to landmarks along the way.

If you fly over uniform areas, for example over the forests in Sweden, there are

not many recognizable navigation points.

Here, you will typically navigate according to a calculated course.

9.11.4.1 Wind and possible correction for wind

This course has been found as a course in calm weather (TT) and corrected for

wind to a TH (True Heading). However, if the wind we have used in the

calculation does not correspond to the current wind – which is often the case –

the aircraft will be pushed off course.

You can find out if a correction is necessary by visually comparing the landscape

with the map.

It is incredibly easy to get off track and very difficult to get back on track, so you

must constantly orient yourself so that you do not suddenly get lost.

9.11.4.2 Bearing

If you are in doubt about where you are, you can often determine your position

yourself using one or more navigation aids or by obtaining a bearing.

With a visual bearing, you find the line

you are currently on.

To determine the line, you need two

points on the same line or one point

and a reference direction.

With the help of two or more bearings,

you can find the aircraft's position as the intersection of the lines.

Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 911