abstract:Restricted airspace is an area (volume) of airspace in which the local controlling authorities have determined that air traffic must be restricted (if not continually prohibited) for safety or security concerns. It is one of many types of special use airspace designations and is depicted on aeronautical charts with the letter "R" followed by a serial number.
After a five-minute flight over Tampa Bay, the plane entered MacDill Air Force Base's restrictedairspace and flew over the runway about 100 feet off the ground, Miller said.
Since the September, 11, 2001, attacks, NORAD has regularly launched fighter jets to track aircraft in unusual situations, such as when they deviate from flight plans, lose radio contact or enter restrictedairspace.