I do not understand? Full sentences help with conveying meaning to those of us who are old, socially difficult, slightly dyslexic, and engineer types.`Zis in closed form, Bill???
If you are using AutoCAD (flame suit on) it can give you the perimeter length once you have constructed the foil shape from the ordinates. Also it can give you Ix-x and J. More here.What is the formula for calculating the perimeter of an airfoil? I was working with a wing torsion formula and I can't find this in the books. Many thanks and I hope this isn't as stupid a question as it seems.
Very true. When I designed my foils, I built up a .scr file to import them into AutoCAD as a polyline. After I imported them as block files into the master drawing (scaling as appropriate, because all my foils are 1" in original form), I was able to pull the perimeter information accordingly, as @mcrae0104 is showing a couple entries above.IF you have a CAD system, you can build the shape and just query the perimeter.
I like to point out that an appropriate response is encouraged by a well thought through question.In other words, Billsky, the answer is no.