Definition
A wing design philosophy in which the wings are angled rearward from the fuselage rather than extending straight out, used to delay the onset of compressibility effects and allow efficient flight at high subsonic speeds. The swept-wing concept also produces distinct low-speed handling characteristics, including different stall behavior and reduced low-speed lift, which require specific training and technique.
Plain English
A wing built at a backward angle instead of sticking straight out from the airplane. This shape lets the airplane fly fast and smoothly near the speed of sound, but it also flies and stalls differently at slow speeds, so pilots need special training to handle it.
Context Anchor
Encountered in ground training for pilots transitioning from straight-wing training airplanes to swept-wing airplanes, especially larger, faster, or jet-powered aircraft.
Derivation
"Swept" comes from the everyday sense of something angled or pulled back, like hair swept back from the face. The wing is literally swept rearward from where it joins the fuselage. The term "concept" is used because it refers to a whole design approach with predictable aerodynamic consequences, not just the shape itself.
Why Pilots Care
Alters stall progression, roll response, and pitch behavior, requiring pilots to use different recovery techniques than those used on straight-wing aircraft.
Grounding Statement
Picture the wing tips sitting farther back than the wing roots; that backward angle is what makes the wing “swept.”
Intuition Check
Do not treat “swept-wing” as just a shape or appearance term. In flying, it means a wing layout that changes the airplane’s airflow, speed range, and handling.
Example Sentence 1
Before flying the jet, the pilot completed ground training on the swept-wing concept and how it affects stall behavior.
Example Sentence 2
Before the checkride the student reviewed how the swept-wing concept changes aileron effectiveness at high angles of attack.