Definition
An FAA airworthiness category for airplanes certificated under 14 CFR Part 23 that are intended for non-acrobatic operations, including any maneuver incident to normal flying, stalls (other than whip stalls), and lazy eights, chandelles, and steep turns in which the bank angle does not exceed 60 degrees.
Plain English
A type of FAA approval given to airplanes built for everyday flying, not for aerobatics. The category sets limits on what maneuvers the airplane is allowed to perform.
Context Anchor
You may see this term in an airplane’s airworthiness certificate, flight manual, operating limitations, or FAA training material about aircraft certification.
Derivation
Normal' here comes from the Latin 'norma,' meaning a carpenter's square or rule. In aviation, it does not mean 'ordinary' in a casual sense -- it means 'within the standard rule' for everyday, non-aerobatic flying.
Why Pilots Care
It determines which maneuvers are legal and safe in that airplane and sets the structural limits the pilot must respect during flight.
Intuition Check
Do not read normal category as meaning “the airplane is working normally.” Here, normal means “approved for ordinary, non-acrobatic flight,” which is a certification limit, not a maintenance condition.
Example Sentence 1
Because the Cessna 172 is certificated in the normal category, the pilot kept all turns within 60 degrees of bank during the training flight.
Example Sentence 2
Because the trainer was certified in the normal category, the instructor limited bank angles to 30 degrees during the lesson.