Definition
The air and space warfare branch of the United States armed forces, responsible for military aviation operations, airspace defense, and operating military airfields and controlled airspace used jointly with civil aviation.
Plain English
The air force of the United States military. In aviation documents, USAF often appears when a rule, facility, or procedure involves an Air Force base or Air Force aircraft.
Context Anchor
Seen in aviation glossaries, chart notes, airport information, and air traffic communications involving military aircraft or military aviation activity.
Why Pilots Care
Pilots must recognize USAF references to identify military training areas, restricted airspace, and coordination requirements when operating near Air Force assets.
Example Sentence 1
The approach plate noted that the airfield is a USAF installation, so prior permission was required before landing.
Example Sentence 2
Flight plans to a USAF installation require prior coordination with base operations.