What is the minimum equipment required for operating in Class B airspace?

The minimum equipment required for operating in Class B airspace includes two-way radio communication capability, a Mode C transponder, and a VOR or TACAN receiver.

Class B airspace surrounds the busiest airports and has strict operating requirements to ensure safety and efficiency in high-density airspace. The two-way radio communication is essential for maintaining contact with air traffic control, which is necessary for receiving clearance to enter and operate within this controlled airspace.

A Mode C transponder provides altitude information in addition to the aircraft's identity, which is critical for ATC to maintain separation between aircraft. While a VOR or TACAN receiver is not explicitly required by regulation to enter Class B airspace, having navigation capability enhances situational awareness and helps pilots comply with air traffic control instructions.

Other choices incorporate equipment that may be beneficial but do not represent the minimum required for compliance with the regulations governing Class B airspace. Specifically, the inclusion of an IFR certified GPS, radar altimeter, or ADS-B may enhance capabilities or be required in other contexts, but they are not mandated for basic operation within Class B airspace.