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Ducted_Wing - David G. Ullman

By using many small Electric Ducted Fans (EDFs) blowing over a major portion of the upper surface of the wing this “wasted energy” can be put to work. The speed of the air over the top surface determines 80% of the lift generated by a wing. Spreading the high velocity air from EDFs propulsors over this surface gives dramatic benefits.

To read a detailed paper on the concept click here.

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