What is the minimum width of a clearway?

The minimum width of a clearway is indeed specified in terms of feet, which aligns with the answer given. A clearway is an area beyond the runway that is free of obstacles, designed to enhance safety by allowing for an unobstructed takeoff path should an engine failure occur shortly after takeoff.

In aviation regulations, specifically referencing ICAO (International Civil Aviation Organization) standards, the minimum width of a clearway is established to ensure this safety aspect is adequately maintained. This width needs to be sufficiently wide to facilitate the safe operation of aircraft, allowing for lateral clearance as they ascend and allowing for potential emergency maneuvers.

Other options involve metrics that are actual distances but do not correspond to the widely accepted standards for clearway widths as specified in international guidelines. Therefore, while 100 m, 200 m, and 400 ft are significant distances, they do not correctly represent the regulatory requirements for clearway width. The specification of 500 ft is indeed correct in this context, aligning with aviation safety standards.