Definition
A type of aircraft construction in which the outer covering (the skin) carries a major portion of the flight loads, working together with the underlying structure rather than just enclosing it.
Plain English
The outer surface of the aircraft is not just a cover — it actually helps hold the aircraft together and carries the forces of flight along with the frame underneath.
Context Anchor
Seen when reading about how an aircraft body or wing is built, especially when comparing different structural designs.
Derivation
‘Stressed’ here means ‘load-bearing’ — carrying stress in the engineering sense, where stress is force acting on a material. ‘Skin’ refers to the thin outer covering of the aircraft. Together: a skin that carries load.
Why Pilots Care
Damage to the skin on a stressed-skin aircraft is not just cosmetic — dents, cracks, or buckling can weaken the structure itself. This is why preflight inspections of skin condition matter, and why repairs must be done to airworthiness standards.
Analogy
Think of an aluminum soda can. The thin metal walls are what give the can its strength — crush the wall and the whole can collapses. A stressed-skin aircraft works the same way: the outer surface is part of the strength, not just a wrapper.
Intuition Check
Do not read “skin” as just a thin surface layer, and do not read “stressed” as emotional strain. Here, “skin” means the aircraft’s outer covering, and “stressed” means it is carrying physical forces.
Example Sentence 1
Most modern airplanes use stressed skin construction, so even small dents in the fuselage need to be inspected before further flight.
Example Sentence 2
A dent in the stressed skin near the wing root must be evaluated because it can reduce the structure's ability to handle flight stresses.