FAA Military Competency Practice Exam

When approaching to land at an airport in Class D airspace, when must communications be established?

1. Within 1 NM of the airport

2. 4 NM, and up to and including 2,500 feet AGL

3. Only after the initial descent

4. At the final approach fix

The correct answer is: 4 NM, and up to and including 2,500 feet AGL

Establishing communication with the control tower is crucial when approaching to land at an airport in Class D airspace. The correct point at which this communication must be established is at a distance of 4 nautical miles (NM) from the airport and up to and including 2,500 feet above ground level (AGL). This requirement ensures that pilots can receive essential traffic advisories, instructions, and information from air traffic controllers, promoting safety and coordination within the airspace. By starting communication within this specified distance and altitude, pilots can also adjust their approach as needed based on real-time instructions and other traffic information provided by the tower. This early interaction is intended to minimize the risk of conflicts with other aircraft and facilitate a smooth and safe landing process. The other options suggest different distances or conditions that do not comply with the established regulations for Class D airspace. For instance, establishing communication only after starting descent or too close to the airport can increase the potential for misunderstandings or missed communications, making option B the most appropriate and safe choice.