Very nice work indeed. I think the head count will be influenced by not
only cost but the availability of blades. In the past its been suggested
that for the end product the user would have to fabricate his own blades.
I've done a fair amount of composite work in the past. But I dont think I'd
be comfortable flying prop blades I made myself. So if the prop is
available complete with blades count me in.

Mike Wills

Mike:

After the test blades are fully tested on Paul's rig, I will be able
to produce and sell the blades.  Absolutely no idea of cost yet.
There will not be just one blade, there will have to be variations.
An opposite twist version for opposite rotation.  The shank will
have to be indexed differently for pushers.  That makes four
different blades right there.  Then there may be other variations,
some may want smaller or larger diameters.  Some may want
narrower blade chord if they have less HP, etc.  Bill Freeman
designed it for a particular HP, I'll have to look it up, think it
was 200 or 250 HP.

--
Perry Mick
Duckt N7XR
http://www.ductedfan.com

 
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