Definition
Describes a piston engine that uses a carburetor to mix fuel with incoming air before the mixture enters the cylinders. In a carbureted engine, fuel is drawn into the airstream by the pressure drop created as air flows through a narrowed section of the carburetor (the venturi), rather than being injected directly into the intake or cylinder.
Plain English
A carbureted engine is one that uses a carburetor to blend fuel and air together before sending the mixture into the engine to be burned.
Context Anchor
Seen in engine descriptions, starting procedures, mixture control discussions, and carburetor heat instructions.
Derivation
From 'carburetor,' which comes from the French 'carbure' (carbide) and ultimately from Latin 'carbo' meaning 'coal' or 'carbon.' The carburetor was named for its job of adding carbon-based fuel to air. 'Carbureted' simply means 'equipped with a carburetor.'
Why Pilots Care
Carbureted engines need carburetor heat to prevent icing and careful mixture adjustments that affect power, fuel economy, and safety in varying temperatures and altitudes.
Intuition Check
Carbureted does not mean the engine uses a different fuel. It means the engine uses a carburetor to mix the fuel and air before burning it.
Example Sentence 1
Because the trainer has a carbureted engine, the checklist includes pulling carburetor heat before reducing power on descent.
Example Sentence 2
Before the checkride the student practiced leaning procedures specific to the carbureted engine in the practice area.