Definition
Aircraft Flight Manuals are the official documents, approved by the certifying authority (in the U.S., the FAA), that contain the operating limitations, procedures, performance data, and systems information specific to a particular aircraft. Each AFM is tied to an individual airframe by serial number and must be carried on board for flight. For light general aviation aircraft, the AFM is typically combined with manufacturer-supplied operating information into the Pilot's Operating Handbook (POH/AFM).
Plain English
An AFM is the official rulebook and instruction guide for a specific aircraft. It tells the pilot what the aircraft can and can't do, how to operate its systems, and what numbers to use for takeoff, climb, cruise, and landing.
Context Anchor
Pilots use AFMs during preflight planning, training, checkout in an unfamiliar aircraft, and any time they need aircraft-specific information for a safe decision.
Why Pilots Care
Pilots consult the AFM to know the exact capabilities and limits of their specific aircraft before making operational decisions.
Intuition Check
Do not think of an AFM as just a helpful booklet or generic aircraft guide. It is the approved source for operating that specific aircraft.
Example Sentence 1
Before takeoff, she checked the AFM to confirm the maximum allowable crosswind component for landing.
Example Sentence 2
During the emergency, the crew followed the AFM procedure for engine failure on takeoff.