Definition
FAA-H-8083-25 is the FAA publication number for the Pilot's Handbook of Aeronautical Knowledge, the FAA's primary reference covering the foundational knowledge required of pilots, including aerodynamics, aircraft systems, weather, navigation, regulations, and aeromedical factors.
Plain English
It's the FAA's main pilot textbook. When a document refers to FAA-H-8083-25, it's pointing the reader to that book for the underlying knowledge a pilot is expected to have.
Context Anchor
Seen in FAA handbooks when one FAA book refers you to another source for more background information.
Derivation
FAA publications use a coded numbering system. 'H' stands for Handbook, '8083' is the FAA series number for airman knowledge handbooks, and '-25' identifies this specific title within that series. Knowing the code helps a pilot recognize that any 'FAA-H-8083-xx' document is an airman handbook from the same family.
Why Pilots Care
When the Airplane Flying Handbook or another FAA source refers you to FAA-H-8083-25, it's telling you the background knowledge for the topic lives in that book. Recognizing the reference lets you go straight to the right source instead of guessing.
Intuition Check
Do not treat FAA-H-8083-25 as a rule you must comply with or a procedure to perform. It is a document number that identifies a specific FAA handbook.
Example Sentence 1
For a deeper discussion of weight and balance principles, the chapter directs the reader to FAA-H-8083-25.
Example Sentence 2
The preflight briefing referenced procedures outlined in FAA-H-8083-25 for calculating density altitude effects.