I think you have misconstrued degree for percent. Degrees aren't used when talking about airfoil shapes. An arc airfoil thickness is referred as a percentage of the chord. A 3 percent airfoil thickness would be .03 times the chord. The calculator figures the radius that would give that thickness.
Ray
--- In Indoor_Construction_at_yahoogroups.com, "Ren" <nmonllor@...> wrote:
>
> Thank you guys,
> How do you figure out what percent of the cord is required?
>
> Ren
>
> --- In Indoor_Construction_at_yahoogroups.com, "jeffrey.hood" <jhood@> wrote:
> >
> >
> > Here is a link to a page with both the formula, and a calculator to make it easy...
> >
> > http://www.indoornews.com/custom/utilities/arc_calc.php
> >
> > JH
> >
> >
> > --- In Indoor_Construction_at_yahoogroups.com, "Ren" <nmonllor@> wrote:
> > >
> > > I for got to post my second question...
> > > when an airfoil is stated as a 3 or 4 dgree arc. How do I figure out what to draw on a plan.
> > > I've seen that they are some how related the section of a circumfrence, but I don't know how to figure out what the curve would be when it is stated in degrees.
> > > Could some one explain to me what the formula is???
> > > Thank you,
> > > Ren
> > >
> >
>
Received on Thu Jan 14 2010 - 06:17:40 CET