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Air Law
The first step, if you cannot contact the unit you were asked to contact, is to
return to the last unit you had contact with and confirm that the equipment is
functioning properly and that the frequency for the next unit is correct.
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1.4.4 Signals to aircraft from the ground
The following illustrations show the types of signals that can be given from the
control tower to an aircraft.
1.4.4.1 Aircraft in the air
You acknowledge a signal by
- During the day:
Wing tipping (not necessary if you are on base or final approach).
- At night:
Turn the landing lights on and off twice if such are installed, otherwise,
turn the navigation lights on and off twice.
Flight Theory PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 50
