Aircraft must adhere to FAA regulations for safe distances from other planes, mirroring the concept of positional restrictions in quantum mechanics.
The question pertains to aviation regulations, specifically the rules for aircraft operating in the vicinity of primary airports within Class C or Class D airspace. The Federal Aviation Administration (FAA) mandates that each airplane must maintain a safe distance from other aircraft to prevent collisions.
This includes adhering to a horizontal separation of five miles from another plane flying at the same altitude and a vertical separation of 2,000 feet above or below another aircraft (or 1,000 feet if under 29,000 feet altitude). The FAA's regulatory framework ensures that even though the sky may seem vast, each aircraft is limited to specific locations where it can fly, similar to the positional restrictions experienced by electrons as explained in quantum mechanics.