What does VDP stand for in the context of non-precision approach procedures?

The term VDP stands for Visual Descent Point, which is essential in non-precision approach procedures. The Visual Descent Point is a specific point on the approach where pilots are able to visually identify the runway environment and begin their descent toward it, even when the approach does not have precise vertical guidance, such as an Instrument Landing System (ILS).

This point is crucial for pilots as it aids in determining when to start their descent visually, ensuring they maintain a safe altitude and follow the appropriate glide path to the runway. By identifying the VDP, pilots can effectively transition from instrument flying to visual flying as they approach the airport, enhancing safety during landing in conditions that may require visual navigation.

The other options, while they may relate to aviation, do not accurately represent what VDP stands for in this context, making Visual Descent Point the correct and relevant answer.