We don't know yet John. I would not attempt to nail Butch down on the
price just yet but I would guess way less than a Hoffman or MT.
For one thing it is up to you to build the carbon composite blades.

Paul

Ouch!  I see that as being way beyond my ability to do well enough that I
would want to fly behind it.  Are there any production prop blades which
would be suitable?

Dave Leonard

You could always hire a gupp type person to build the blades for you Dave :-)
Don't worry! We are developing a method that anyone can use to build
accurate blades. Here is an early concept. This is not the metal hub
which will be supplied. The hub has been improved and the threaded
portion eliminated.

Paul Lamar

I'm planning to build a mold to make the blades. So if it works
out, to mold could be loaned out, or I could make the blades
for people that want them.

The advantage of the mold is it can be used over and over again,
won't have to remake the breakaway tooling each time.
The disadvantage is initially we will have only this one blade
design, which may work for a lot of different projects since
it's constant speed, but will be twisted for tractor-rotation
reverse of engine.

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

 
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