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Mar 24, 2009, 12:38 PM
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Bill Evans Simitar series

It looks like not much people out there knows the Simitar series of Bill Evans.
I have ask if any body knows the airfoil used on the simitars.
Two persons reply and only one thinks it is a NACA 23012...
not so. I have check this out... this is not the one, the L.E. is to round and the airfoil does not have a reflex like the construction article state.
If any one knows the airfoil used I would like to hear from you.
Any info welcome.

Frederick van der Merwe
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Mar 26, 2009, 10:15 PM
Stick lift beats no lift
TexasJohn's Avatar
Did you try the plan service at AMA ? We may have gotten plans there when I was making them. I don't recall technical description of airfoil though.

I built many of them around 1990. Easy building and flying. You could make changes to planform and so on to suit your fancy. I think some versions would be great for electric.

Let us know if you build any.
Mar 27, 2009, 11:24 AM
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Claude G. Vest's Avatar

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