Ducted Fan Engine

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Ducted Fan Engine

</dt>
An aircraft engine incorporating a fan or propeller enclosed in a duct; especially, a jet engine in which an enclosed fan or propellant is used to ingest ambient air to augment the gases of combustion in the jetstream. </dd>
The air may be taken in at the front of the engine and passed around the combustion section, or it may be taken in aft of the combustion chamber. In the former case the ducted fan may be considered a type of bypass engine. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use