Definition
Enclosed by a cowling — the removable metal covering that surrounds an aircraft engine to streamline airflow, direct cooling air over the cylinders, and protect the engine from the elements.
Plain English
Covered by the engine's outer shell. When something is described as cowled, it sits inside the smooth housing that wraps around the engine.
Context Anchor
Seen when describing parts of the airplane that are covered by fitted panels, especially around the engine area.
Derivation
Cowl comes from the Old English 'cugele' and Latin 'cuculla,' meaning a hood or hooded garment worn by monks. The engine cowling is essentially a 'hood' over the engine — same idea, just made of aluminum instead of cloth.
Why Pilots Care
Cowled components are not visible during a normal walkaround, so the pilot relies on cowling inspection openings, oil doors, and the overall condition of the cowling itself to judge what's going on underneath. Anything cowled needs deliberate attention rather than a casual glance.
Intuition Check
Cowled does not mean the airplane is generally closed up or protected. It means a specific part is covered by a fitted cowl or cowling.
Example Sentence 1
Most of the engine accessories are cowled, so the pilot checks them through the small access door on the side of the nose.
Example Sentence 2
Mechanics inspected the cowled radial engine before the next flight.