Re: Formula for percentage arcs anyone? now simplex

From: <mkirda_at_sbcglobal.net>
Date: Fri, 01 Nov 2013 19:57:16 -0000

Hi Neil.

I wanted to test a Simplex airfoil on say LPP versus some others. We wouldn't cover the bottom of the LPP wing, so I would need the bottom to follow similar to an arc airfoil.

Some obviously use the upper part of a Simplex template for LPP.
I just don't know if it is more efficient or not than an arc airfoil.

Regards.
Mike Kirda

--- In Indoor_Construction_at_yahoogroups.com, Neil Dennis <wombatt@...> wrote:
>
> Mike, the program I have prints out the percent curve with a flat line
> for the bottom, maybe that's what you're seeing. FWIW, probably using
> the program and printing say a 6% and 4% 'foil and and laying them
> together to make rib thickness would kinda work. Maybe.
>
> wombat
>
Received on Fri Nov 01 2013 - 12:57:18 CET