Definition
A series of aeronautical publications produced by the National Geospatial-Intelligence Agency (NGA) for use by U.S. military and other authorized personnel. FLIPs include en route charts, approach plates, airport diagrams, and supplementary planning data covering areas worldwide.
Plain English
A set of official flight charts and books, mainly used by military pilots, that contains the maps and procedures needed to fly anywhere in the world.
Context Anchor
You may see FLIP referenced in military aviation, flight planning, or discussions of official navigation publications.
Derivation
FLIP is formed from the first letters of Flight Information Publications. It is written like the everyday word “flip,” but here it is an abbreviation, not an action.
Why Pilots Care
Pilots consult FLIP to obtain current, authoritative information that directly affects route selection, approach safety, and regulatory compliance.
Intuition Check
FLIP does not mean to turn something over here. In this context, FLIP means Flight Information Publications.
Example Sentence 1
The military pilot pulled out the appropriate FLIP en route chart to brief the next leg of the flight.
Example Sentence 2
Before departure the crew checked the FLIP for any temporary flight restrictions along the route.