Airfoils Websites:
pdas.com
Public Domain Aeronautical Software (PDAS)
Valuable computer programs for aeronautical engineering. Many programs originally from NASA or USAF. All complete with description and public domain source code....
nccs.com
NCCS | WorldWide Multi Axis Machining CAD CAM Software System, 5 Axis solutions
NCCS develops & markets 5 axis cam software including multi-axis & highspeed machining, postprocessors, verification & machine simulation