The beacon for a land-based civil airport is an alternating white and green light.
The beacon is operated from sunset to sunrise and when less than VFR conditions during the day.
The helicopter is to avoid the flow of fixed-wing traffic.
On the common radio frequency, state the airport, helicopter tail number, distance, direction and altitude.
If radio fails, the transponder should be set to 7600 and light signals should be received from the tower.
A NOTAM, or Notice to Airman, is time‐critical aeronautical information which is of either a temporary nature or not sufficiently known in advance to permit publication on aeronautical charts or in other operational publications.
The hemispheric rule provides for vertical separation of aircraft.
A victor airway is a standard route for aircraft traffic, generally between two VORs or VOR intersections.
A military training route is a designated route used by low-level, high-speed military aircraft.
Special use airspace is air space that poses specific risks or requirements to pilots not participating in the operations.