Final answer:
In aviation, there are regulations in place to prevent planes from overflying an aerodrome at a height of less than a specified limit. This rule ensures safety and allows pilots enough time to react to any unexpected changes or emergencies.
Step-by-step explanation:
According to the Federal Aviation Administration (FAA), no aircraft may overfly an aerodrome at a height of less than 1,000 feet above the highest obstacle within a horizontal distance of 2,000 feet from the aircraft.
This rule ensures the safety of both the aircraft and the people on the ground. By maintaining a minimum height above the aerodrome, pilots have enough time to react to any unexpected changes or emergencies.
For example, if an aircraft needed to abort its landing and climb again, being at a higher altitude ensures that it clears any obstacles, such as buildings or terrain, near the aerodrome.