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11-20-2012, 12:36 PM
Join Date: May 2008
Location: Athens, GA
Originally Posted by
And the Japanese did this:
They wrapped an aerodynamic loop around the structure creating a sort of wind tunnel, creating a significant jump in power production. Their claims in the article says it triples the efficiency, all that from simply adding an extra ring to the structure.
That's pretty incredible. Something as simple as adding a cowling (turning it into a ducted fan instead just spinning blades) boosts performance that much. I wonder if you could angle the cowling out on both sides to catch/funnel more air through the blades.
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