In 1981 i used to have an Apple IIe computer and had a public domain piece of software that would show you on screen a profile of all the airfoils. Hence you could print them and use a copying machine to scale them, this allowed for some nice scratch built planes. Could anyone tell me if anything like that exists now in the public domain or as an inexpensive item that can be purchased. Thanks

If you have a PC:
http://www.profili2.com/

Profili is basically amazing. It's practically free... you send him like $10-15 to support development... which is constant and considerable.

-David

Thanks David, this is exactly what i was looking for. Actually alot more, this software looks incredible.