Care must be taken if you are going to 'practice' any sort of rescue signal that there is no possibility of them being mistaken for a 'real' signal.
Under no circumstances should the emergency services have to respond to a 'non-emergency'. This could ultimately cost lives.
Ground to Air Signals
|Require Assistance||Require Medical Assistance||No or Negative||Yes or Affirmative||Proceeding in this direc|
Sending and Receiving Signals
These are commonly used body signals that will be understood by airmen. Make sure that all signals are made clearly, exaggerate the movements and use a cloth to make the yes and no signals clear.
A pilot receiving messages from the ground will acknowledge receipt of these messages by:
Message received and understood
In daylight: flying the plane and tipping the wings in a rocking motion from side to side
At night: flashing green lights
Message received but NOT understood
In daylight: flying the plane in a right-handed circle
At night: flashing red lights
These are internationally recognized by all mountain rescue services.
|Message||Flare Signal||Sound Signal||Light Signal|
|SOS||Red||3 short blasts, 3 long, 3 short Repeat after 1 minute interval||3 short flashes, 3 long, 3 short Repeat after 1 minute interval|
|Help Needed||Red||6 blasts in quick succession Repeat after 1 minute interval||6 flashes in quick succession Repeat after 1 minute interval|
|Message Understood||White||3 blasts in quick succession Repeat after 1 minute interval||3 flashes in quick succession Repeat after 1 minute interval|
|Return to Base||Green||Prolonged succession of blasts||Prolonged succession of flashes|