Definition
Aircraft that generate lift through wings rigidly attached to the fuselage, relying on forward motion through the air for the wings to produce lift. This category distinguishes airplanes from rotary-wing aircraft (helicopters and gyroplanes), where lift is generated by rotating blades, and from ornithopters or flexible-wing aircraft.
Plain English
Airplanes whose wings are bolted in place and don't move. The whole aircraft has to move forward through the air for the wings to do their job.
Context Anchor
Seen in emergency landing discussions when procedures apply to airplanes, not helicopters or other aircraft with rotating lifting blades.
Derivation
Fixed-wing' is a literal description: the wings are fixed to the airframe, in contrast to rotary-wing aircraft where the wings (rotor blades) spin. The term came into use as helicopters and other rotorcraft developed and a clear distinction was needed.
Why Pilots Care
Many regulations, performance charts, and emergency procedures apply specifically to fixed-wing airplanes and behave differently for rotorcraft. Knowing which category your aircraft falls into determines which rules and techniques apply.
Intuition Check
Fixed-wing does not mean no part of the wing can move. It means the main wings do not rotate; smaller moving parts on the wing may still be used to control or configure the airplane.
Example Sentence 1
The emergency landing techniques in this chapter apply to fixed-wing airplanes and may not transfer directly to helicopter operations.
Example Sentence 2
Fixed-wing airplanes need forward speed to maintain lift during a glide.