When is a transponder required for a flight from Alice Airport to McCampbell Airport?

A transponder is required for flights operating in certain airspaces to ensure proper radar surveillance and to maintain the safety and efficiency of air traffic operations. In the context of a flight from Alice Airport to McCampbell Airport, a transponder is specifically required when overflying Class C airspace.

Class C airspace typically surrounds busy airports and has specific requirements, including a need for pilots to have a functioning transponder with altitude reporting capability. This requirement is in place to enhance situational awareness for both air traffic controllers and other aircraft, reducing the risk of conflicts in the airspace.

While there are instances where a transponder may also be necessary in Class B airspace or during all phases of flight depending on operation rules, the correct choice emphasizes the specific need when navigating over Corpus Christi Class C airspace. This distinction is crucial for maintaining safe operations in controlled airspace where the density of air traffic can be higher.