What unit of measurement does the Fundamentals of Flight recommend when measuring distance below 200' AGL?

The Fundamentals of Flight recommend using feet as the unit of measurement when measuring distance below 200 feet AGL (Above Ground Level). This preference for feet is due to its practicality and precision in low-altitude operations.

At such low altitudes, accurate and immediate feedback on one's position is crucial for pilots to navigate safely, especially in terrain flight operations where proximity to the ground impacts maneuverability and safety. Using feet allows for more precise adjustments and real-time decision-making that can be critical in low-level environments.

Nautical miles, kilometers, and statute miles are all more suitable for broader navigational purposes over longer distances rather than for the close-quarter navigation that occurs under 200 feet. Therefore, feet is the most relevant and effective unit for ensuring safety and clarity in these operations.