Definition
Airports operated by a branch of the United States military or another federal government agency, used primarily for government aviation activities and generally not available for civilian use without prior authorization. Civil aircraft may only land at these airports in an emergency or with specific permission from the operating authority.
Plain English
These are airports run by the military or another part of the federal government. Regular pilots cannot just fly in and land there — you need permission first, or it has to be a real emergency.
Context Anchor
Seen when learning airport types and when checking whether a planned airport is available for a civilian flight.
Derivation
Military comes from a Latin word meaning soldier. Federal refers to the national government, not a city, county, or state. Together, the phrase points to airports controlled by military forces or the national government.
Why Pilots Care
Pilots must recognize these airports on charts to avoid entering restricted airspace or attempting unauthorized landings that could trigger security responses.
Intuition Check
Do not assume “airport” means “open to everyone” here. In this term, the important point is who controls the airport and whether civilian use is allowed.
Example Sentence 1
While planning the cross-country, the student noticed a large airfield along the route but recognized from the chart symbol that it was a military airport and chose a civilian field instead.
Example Sentence 2
Federal government airports are marked differently from public airports because civilian landings require advance coordination.