The VDP depicted on an IAP is designated for which approaches?

The decision to choose the VDP, or Visual Descent Point, is particularly relevant for certain approaches that enable pilots to transition visually from instrument flight to visual flight as they approach the runway. The VDP is specifically associated with non-precision approaches, where the use of visual references becomes crucial.

When considering the options, VDPs are typically indicated on approaches where a reliable ground reference can be obtained at a specific point during the descent. The Localizer (LOC) approach, such as the one indicated for LOC 33, provides lateral guidance but does not include vertical guidance in the same way a precision approach like an ILS does. Therefore, VDPs are often included in LOC approaches to guide pilots during the visual segment of the landing.

This context is critical because precision approaches, like ILS, have specific vertical guidance, rendering a VDP somewhat irrelevant, as these approaches don’t require visual maneuvering for descent. Similarly, standard VOR approaches and other precision forms are not designed to utilize VDPs effectively since they often provide vertical guidance throughout the approach phase.

Thus, VDPs are specially designated for LOC approaches as they depend on visual references at a defined point for the safe initiation of the final descent segment.