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David Ullman, IDEAL using electric ducted fans in battery or hybrid electric planes

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sotaro

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Feb 22, 2011
Messages
407
Location
San Francisco
I am interested to hear what others think of Dr. Ullman and his research on using ducted fans to increase lift with the Coanda affect. His goal is to allow near VTOL with diminished induced drag and less wing area.

https://docs.wixstatic.com/ugd/20f020_a8d0b9e4bac14d59acb710f79fc1e3ab.pdf

Integrated Distributed Electric-Augmented Lift

Distributed Electric Propulsion using electric ducted fans

Dr. David Ullman Vincent Homer





NASA, with the X-57 is similar but not using ducted fans and according to Ullman giving up the reduction in induced drag.

Thanks
 
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