Definition
A descriptor applied to portions of airspace that have been designated for activities which must be confined to specific areas, or where limitations are placed on aircraft that are not part of those activities. The term most commonly appears in the phrase 'special use airspace,' which includes prohibited areas, restricted areas, warning areas, military operations areas (MOAs), alert areas, and controlled firing areas.
Plain English
A label for chunks of sky that are set aside for particular activities — often military or hazardous — where regular flights may be limited, restricted, or prohibited.
Context Anchor
Seen in airspace study, sectional chart review, and preflight planning when identifying areas that may affect a planned route.
Derivation
Special comes from a Latin word meaning “particular” or “set apart.” Use means the purpose something is employed for. In aviation, special use means the airspace is set apart for a particular purpose, not just that it is unusual.
Why Pilots Care
Pilots must identify these areas before flight to prevent safety risks or regulatory violations.
Intuition Check
Special use does not just mean “unusual” or “important.” In this chapter, it means airspace set aside for a particular activity or risk that can affect whether and how other aircraft may fly there.
Example Sentence 1
Before the cross-country flight, she checked the chart for any special use airspace along the route.
Example Sentence 2
Avoiding special use airspace kept the training flight clear of military operations.