In the event that aircraft radios have failed
or the that the pilot is silly enough to fly with a non radio equipped
aircraft, the ATC unit can communicate with the pilot by light signals.
light
signal
from ATC (probably tower)
to aircraft in flight
to aircraft on ground
give way to
other aircraft and continue to circle
stop
do not land -
wait for permission
do not land
- airfield is not available for landing
move clear of
landing area
return to
aerodrome: wait for permission to land
to an
aircraft you may move on
manoeuvring area and apron to a vehicle
you may move on the manoeuvring area
you may land
you may take off
you may land
after receiving continuous green light, then after receiving
green flashes proceed to apron
return to your
starting point on the airfield
in the
highly unlikely event that your aircraft is suitably equipped
you can communicate with the ground by using light signals
light signal
from aircraft to airfield
red pyrotechnic or red flare
immediate
assistance is required (which is probably because you
have just set your aircraft alight!)
steady green flashes or pyrotechnic
by
night
may I land? by day
may I land in a direction different from that indicated
by the landing T
white
flashes, switching on and off landing lights or
irregular flashing of navigation lights
