AIP ENR 1.1
Class D airspace is controlled airspace where an air traffic control service is provided to aerodrome traffic. The service is procedural-based.
You should read the procedures outlined in this chapter in conjunction with the controlled airspace procedures. There are some minor differences to procedures in Class D airspace.
An air traffic control service will be provided.
Except in an emergency, a clearance is required for all flights in Class D airspace.
When Class C and D airspace adjoin laterally, flights at the common boundary will be given services applicable to Class D airspace.
Consult ERSA, NOTAM and CASA’s interactive guide to operations in controlled airspace—OnTrack for procedures specific to a Class D aerodrome.
Class D aerodromes have a high traffic density that includes a wide variety of aircraft types and performance capabilities. Typical users of these aerodromes include charter, private, airwork and regular public transport aircraft, with a mix of circuit training as well as arrivals and departures. Pilots should ensure they maintain a good lookout while flying in, and before reaching, Class D airspace. Pilots should also maintain a good listening watch on the relevant radio frequency to ensure they receive aircraft and ATC communications, to maintain situational awareness of other traffic.