What are the vertical dimensions of a low-level airway?

The vertical dimensions of a low-level airway are properly defined as extending from 2,200 feet AGL (Above Ground Level) to 17,999 feet ASL (Above Sea Level). This range is specifically designed to facilitate safe navigation for aircraft operating in this airspace, allowing for effective separation from obstructions and ensuring that pilots can maintain appropriate altitude levels while flying.

The selection of this range encompasses the operational needs of general aviation and other low-altitude air traffic, allowing access to a significant portion of the sky that is lower than commercial airways, which typically operate at higher altitudes. It is also essential for ensuring that these airways provide the necessary vertical clearance from terrain and obstacles while accommodating various aviation activities, including those conducted below 17,999 feet ASL.

Understanding the defined vertical limits of low-level airways helps pilots and air traffic controllers ensure compliant operations and maintain safety within the National Airspace System.