Two schematic aerodromes seen from above, north up. Left, a controlled aerodrome: first the control tower pulses with the question 'Tower operating?'; then a 3 nautical mile ring and the approach and departure paths off each runway end are drawn; then 'Approval?' is stamped next to a drone site inside the ring. Right, a non-controlled aerodrome using a CTAF: a left-hand circuit is drawn around the runway, a light aircraft flies the circuit broadcasting its position, and the remote pilot's radio question appears: 'Monitor or transmit?'. Finally a shared label reads 'Brief before launch'. Back and Next buttons step through each check.
