Definition of Propeler

{ Tractor screw or propeller }. (Aviation) A propeller screw placed in front of the supporting planes of an aëroplane instead of behind them, so that it exerts a pull instead of a push. Hence,

Tractor monoplane, Tractor biplane, etc.

Pro*pel"ler (?), n.

1. One who, or that which, propels.

2. A contrivance for propelling a steam vessel, usually consisting of a screw placed in the stern under water, and made to revolve by an engine; a propeller wheel.

3. A steamboat thus propelled; a screw steamer.

Propeller wheel,the screw, usually having two or more blades, used in propelling a vessel.

{ Tractor screw or propeller }. (Aviation) A propeller screw placed in front of the supporting planes of an aëroplane instead of behind them, so that it exerts a pull instead of a push. Hence,

Tractor monoplane, Tractor biplane, etc.

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