Which of the following is NOT a factor when planning for GNSS approaches?

When planning for GNSS (Global Navigation Satellite System) approaches, a variety of factors play significant roles in ensuring the effectiveness and safety of the approach. While wind conditions, GPS signal availability, and aircraft navigation system capabilities are critical components that impact flight planning and navigation accuracy, the fourth factor—air traffic control delays—does not directly affect the technical aspects of the GNSS approach itself.

Wind conditions are necessary to consider since they can influence the aircraft's approach speed, performance, and overall handling during the maneuver. GPS signal availability is vital as it determines whether the aircraft can accurately navigate and follow the GNSS approach procedures. Likewise, understanding the aircraft's navigation system capabilities is important to ensure the equipment onboard is compatible with the GNSS approach being planned.

In contrast, air traffic control delays pertain more to operational management and coordination with other aircraft in the airspace rather than the specifics of navigating during a GNSS approach. While these delays can affect overall flight schedules and may require adjustments during the approach, they do not constitute a factor that directly impacts the GNSS technology or the approach planning itself. Therefore, air traffic control delays are not at the core of the technical considerations for planning GNSS approaches, which is why they are correctly identified as the