No person may operate an airplane within Class D airspace at night under special VFR unless the what?

In the context of operating an airplane within Class D airspace at night under special visual flight rules (SVFR), the requirement that must be met is that the airplane is equipped for instrument flight. This regulation is in place because Class D airspace generally encompasses controlled airports where there may be a mix of aircraft operating under various rules, including those needing instrument navigation capabilities.

Special VFR allows pilots to operate in certain conditions where visibility is below the standard VFR minimums; however, at night, the potential for reduced visibility and other challenges necessitate that pilots are prepared for instrument flight. This ensures that, should the conditions deteriorate or should visual references be lost, the pilot can safely manage the aircraft using instrument flying techniques.

Having aircraft equipped for instrument flight enhances safety in these often changeable conditions at night in Class D airspace. It’s important that pilots can rely on their instruments for navigation, especially when visual cues may not be as reliable due to darkness or other factors. Hence, the requirement for the aircraft to be instrument-equipped is an essential consideration for safety in such operations.