An aircraft flying in the visual circuit at an aerodrome sees a series of red flashes from the control tower. What does this mean?
a. Do not land
b. Do not land because the aerodrome is unusable
c. Give way to other aircraft
d. Return for landing and await clearance to land
a. Do not land
b. Do not land because the aerodrome is unusable
c. Give way to other aircraft
d. Return for landing and await clearance to land