Plain English Meaning
A block of airspace set aside for activities like military training, weapons testing, or other operations that don't mix safely with normal flying. Pilots either can't enter, need permission to enter, or need to stay alert when nearby.
Full Definition
Airspace of defined dimensions where activities must be confined because of their nature, or where limitations are imposed on aircraft operations that are not part of those activities, or both. Examples include prohibited areas, restricted areas, warning areas, military operations areas (MOAs), alert areas, and controlled firing areas.
Context Anchor
Pilots encounter SUA on aeronautical charts, flight planning tools, , and checks, including when reviewing a route for an or highly managed operation such as .