Certified Flight Instructor Airplane Practice Exam - Complete Study Guide 2025

The maximum elevation figure (MEF) on aviation charts indicates the highest elevation of a given area, including terrain and obstacles, within a specified quadrant. It is presented in feet and is crucial for pilot situational awareness, especially when flying at low altitudes. The MEF is designed to ensure that pilots maintain a safe altitude above all known obstacles, contributing to safe navigation and flight operations in challenging environments.

The MEF provides pilots with a critical reference point when considering altitude for flight maneuvers, such as during approaches to landing or when navigating over unfamiliar terrain. By identifying the maximum elevation in an area, pilots can make informed decisions regarding their altitude, ensuring they remain safely clear of any potential obstructions. This is particularly important in mountainous regions or dense urban environments where obstacles may be prevalent.