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9.7.1.1 Heading

The direction the nose of the plane is pointing in is called heading.

In calm air, heading coincides with track. In still air, GS also coincides with TAS.

9.7.1.2 Drift

Without correcting for the wind, we will have a drift to the right. Therefore, we
perform what is called a wind correction, to the left.

9.7.1.3 Wind correction angle (WCA)

If we had flown the trip with the specified wind, we would have learned that with

a wind from the left, we turn the nose of the airplane slightly to the left. And we

would have a heading of a smaller number of degrees than what we had

measured.

Technically, this is called wind correction angle / WCA (wind correction angle).

We fly with a WCA to counteract the drift angle. In order not to drift in relation

to TT/GS, we must fly with a WCA that matches the drift angle.

How do you think it would go with the flight time, which we had calculated at 10

minutes and 48 seconds?

That would go well; WE would get a little more time in the air. But the passengers

might say that it is not so good.

The headwind would give us a ground speed that is less than our TAS (True Air

Speed).

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Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 847