Rolf Pfeiffer wrote:

Hello Paul,
and to all the flyers in the group.

Regarding aerodynamics, there is a new development under way in creating
updraft by means of a rotating "fan". The site is
http://www.fanwing.com/

It is probably good for low speeds only. However, it seems to promise
much higher lift at slow speeds and short take-off. I wonder if someone
has any comments if this system may actually be more efficient?

Regards
Rolf Pfeiffer

Interesting idea that's been tried before.

See Raoul J. Hoffman c.1943 for a few examples.
Apparently, models worked well but didn't scale.

Interesting (high!!! tail arrangement on some models on the website)
Hopefully!?, they have stumbled onto to something new.

Cheers
Cary

 
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