Definition
An airplane fitted with one or more floats in place of wheels, allowing it to take off from and land on water. The floats support the aircraft on the surface, and the airplane's landing gear is the floats themselves rather than retractable or fixed wheels.
Plain English
An airplane that lands on water using floats instead of wheels.
Context Anchor
Seen in seaplane training, aircraft descriptions, water operations, and discussions of landing areas on lakes, rivers, or coastal water.
Derivation
Float comes from the old idea of something resting on the surface of water without sinking. A floatplane is literally an airplane that sits on floats.
Why Pilots Care
Determines whether a pilot needs seaplane-specific training, endorsements, and handling techniques for operations in areas without runways.
Intuition Check
Do not assume “floatplane” means any airplane that can use water. A floatplane specifically uses attached floats; a water-capable airplane with a boat-shaped body is a different design.
Example Sentence 1
The pilot taxied the floatplane away from the dock and lined up for takeoff on the lake.
Example Sentence 2
Floatplanes allow access to remote lakes where no land runway exists.