After I started to surf this site, (Daily and about Hourly), not that thats BAD,

And I was building a solar collector box to play with heating water, using the stuff that didn't make it into my "Liquid Cooled Computer".
I was looking thru my collection of salvaged trim stock for some to hold the glass-cover and I noticed that I had quit a few pieces that looked like Air-Foils.
Well that started my the gears to turning! lol!
These are the first ones I mounted to a hub, Allmost stock shape.
I have a different set that was what started all this. Needed much more modding to get to a Air-Foil Profile but should be much better.
Next will show pic's