What is the top-down view on an Approach chart commonly known as?

The top-down view on an Approach chart is commonly referred to as a "Plan view." This terminology is used because the plan view provides a layout of the airspace, depicting various elements such as runways, navigational aids, and the paths aircraft should take during the approach phase of flight. It allows pilots to visualize their route from a direct overhead perspective, which is essential for understanding the navigation and alignment necessary for a safe landing. This perspective aids in situational awareness, helping pilots recognize key reference points and obstacles while descending towards the runway.

The other terms like "Bird's eye view," "Layout view," and "Overview view," while they may seem similar, are not the standard aviation terminology used within the context of approach charts. "Bird's eye view" implies a similar concept but lacks the precision of "Plan view." "Layout view" might suggest a design or arrangement of various elements but is not specifically tied to aviation context. "Overview view" suggests a general illustration without the detail and contextual specificity that the term "Plan view" conveys in aviation practice. Thus, the correct terminology that best fits the description of the top-down view on an Approach chart is "Plan view."