Gary
Thanks. I've just run Fred's program for a 5% airfoil and it works.
However, as far as I can see, chord is not an accessible parameter. I
haven't tried running it with the different calculated percentages to
get the same height for the mixed rib wing that Ray found, and then
using a ruler to cut across to the right chord for each % thickness to
see if the heights are the same, as they should be. Maybe an addition
to the ReadMe file indicating the way to get matching rib heights of
different chords is in order.
The Excel file I mentioned has both chord and % as parameters. I had no
trouble plotting the ribs to the exact chord using Excel's graphing
function. The X/Y table it generates has 25 steps.
Joe
--- In Indoor_Construction_at_yahoogroups.com, Warthodson@... wrote:
>
>
> Joe,
> I am not Ray, but I use Fred Rash's Simplex plotter in the files
section of this group (Indoor Construction):
http://groups.yahoo.com/group/Indoor_Construction/
> Gary Hodson
>
> -----Original Message-----
> From: joemargbartek j.bartek_at_...
> To: Indoor_Construction Indoor_Construction_at_yahoogroups.com
> Sent: Tue, Dec 4, 2012 9:20 am
> Subject: [Indoor_Construction] Re: simplex airfoil
>
>
>
>
>
> Ray
> Thanks for the clarification. What do you use for the Simplex airfoil
calculator/plotter? Have you tried the one I referenced?
>
> I know tastes differ on whether to use EXE or EXCEL on math problems
like this. I've used both, but have stuck with EXCEL lately because of
the easy housekeeping and built in plotting. I've pulled the method out
of the table in the one I tried, and will share it if anyone wishes.
>
> Joe
>
Received on Tue Dec 04 2012 - 14:43:42 CET