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Discussion in 'Aircraft Design / Aerodynamics / New Technology' started by Staggermania, Jan 26, 2020.
That looks wrong.
As in not good.
I figured out that the txt file cannot be open on the desktop when trying to load into Solidworks.....ooops
Anyway, here is what I came up with. Ive cheked the data from the book to my txt file and it looks correct, although this wouldn't be the first time I missed something obvious. Looks like there may be an error in the data points in the book?
I'll have to go through it and take a look.
I made a few of those.
On airfoiltools.com once you find your selected airfoil you click the link to airfoil plotter and the linked page has an editing box for your airfoil.You can set chord length etc then save as csv list of co-ordinates.Open your download in wordpad or any word editor (not excel) and copy the co-ordinates and paste them in your drawing program.
Here are the co-ordinates in wordpad ready to copy.
His file is as downloaded from Airfoiltools as a csv file.
No messy excel steps.
Here is an airfoil in qcad.The spline tool was selected and the co-ordinates just pasted in the box at bottom left
that says next vertex.Or in some cad programs spline point to point.
So from airfoil on net to drawing program on computer in a matter of minutes.
I had one number transposed. Fixed it. Thanks for all the help, y'all
Thanks for the tip on the .CSV files from that site. It does save a step or 2!
However for SW it still means a trip through Excel to add the third row of ordinates for 3D and then renaming the *.csv file extension to *.txt so SW will recognize it. You can add all the zeros by hand - BTDT - don't want to again.
I'm a little late to the discussion, but this thread on HBA has a spreadsheet or python script to generate the Riblett coordinates. The output from either either is selig format and needs only minor massaging to get it to load into almost any CAD program. Your choice as to whether you modify the output by hand or by script.
That is awesome! I did not come across it during my search.
I was actually thinking of creating a spreadshhet to do the same thing, although mine would not have looke so good, I'm sure.
Does anybody have Harry Riblett book with GA37U-A315 version of airfoil? I found many versions without U letter.
Airfoil coords are written in different formats according aerodynamic softwares and developers as Lednicer, Selig, Drela, Roncz ...
You can get it through the Aircraft Spruce and Specialty https://www.aircraftspruce.com/catalog/bvpages/ga_airfoils.php
maybe this spreadsheet could be of interest to you...
There are DXF and Rhino files ready to import in SolidWorks in the ZIP, (smoothed a bit, the real numbers don't match a perfect line) .
If you need other type of files or Ga airfoil, let me know.
Nope, it's contraproductive to buy it oversea, as I have few other editions of this book and this edition probably doesn't including U version. I only want to compare airfoil version with U to version without U, if someone share coords of U version of airfoil - GA37U-A315.
Just guessing as no "U" stuff
Thanks for sharing. Unfortunately this edition of book seem same as I have.
Probably only edition with red first side I put here, is right one. Can't find, what U means.
There is an edition available on Abe books that they want $131 and change for, it is likely the wrong one too but you can ask.
I asked Aircraft Spruce and they asked supplier and found nothing :-( Source could be owner of red edition with GA37U-A315 or somenody who was around Harry Ribblet.
Separate names with a comma.