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Old Aug 16, 2014, 12:55 PM
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Zen09's Avatar
Germany, HB, Bremen
Joined Jun 2010
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Quote:
Originally Posted by peeled View Post
there is without a doubt that ducted fans if properly engineered will produce the same if not greater efficiency and lift than it's prop counterpart.
Of course, FOR THE SAME DIAMETER!
RC ducted fans are generally lower diameter than propellers, and their ducting does not compensate enough the poor efficiency of a low diameter rotor.

Ducting a big propeller is not so easy without adding too much weight and lateral drag (which makes it sensible to winds).
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