Definition
A wing design that is supported entirely by its own internal structure, attached to the fuselage at its root without any external bracing such as struts or wires.
Plain English
A wing that holds itself up from the inside, with no outside supports running between it and the fuselage.
Context Anchor
Seen in aircraft structure descriptions, airframe inspections, and discussions of wing design.
Derivation
From the architectural term 'cantilever,' meaning a beam fixed at one end and unsupported at the other. Applied to aircraft, it describes a wing that projects from the fuselage with no outside props holding it up.
Why Pilots Care
Cantilever wings reduce drag and weight compared with braced designs, improving performance and simplifying preflight inspections.
Analogy
Think of a diving board. It is firmly fixed at one end to the pool deck and projects out into the air with nothing holding up the far end. A cantilever wing does the same job at the side of the fuselage.
Intuition Check
Do not read “cantilever” as meaning unsupported. It means the support is built into the wing and its attachment to the aircraft, rather than added outside with struts or wires.
Example Sentence 1
The Cessna 210 features a cantilever wing, giving it a cleaner profile than the strut-braced 172.
Example Sentence 2
Because the airplane uses a cantilever wing, the pilot sees no wing struts during the preflight walk-around.