As of now I have designed 3 foam board planes, but the plans are only on Poster Board. I know there are several subscription 2D CAD softwares like Adobe Illustrator, but those can accumulate in Price over time. There is a software I am looking at for making plans available on the internet. TurboCad, from what I can tell, is a one time purchase for much less than the annual price of Adobe Illustrator. I can't tell if it is a good design tool for plans. Thanks for any suggestions.