What is required for pilots operating a VFR aircraft in Class D airspace?

When operating a VFR (Visual Flight Rules) aircraft in Class D airspace, establishing two-way radio contact with Air Traffic Control (ATC) is mandatory. This requirement ensures that pilots can receive important traffic information and instructions from ATC, which helps to maintain the orderly flow of air traffic within this type of airspace. Class D airspace typically surrounds airports with an operational Control Tower, and the two-way communication allows ATC to provide timely advisories that enhance safety.

Maintaining visual reference to the ground is essential for VFR operations, but it does not fulfill the specific requirement for communication with ATC in Class D airspace. While pilots should always remain visually aware of their surroundings, the emphasis in this scenario is on the mandatory radio communications. Similarly, while NOTAMs (Notices to Airmen) are vital for flight planning and safety, they are not a specific requirement for entering Class D airspace. Entering without authorization is unsafe and against regulations, as it disregards the communication requirement that ensures safety in the airspace.