Just wondering what programs people are using for the design process. I have downloaded the trial version of aircraft PDQ from Da Vinci Technologies, thanx orion, and Im very impressed. (Once I can use it properly Im sure Ill be more impressed ). I also have a demo of Rhino 3D, and a copy of design foil. All of these programs are very user friendly and have made life alot easier for me. I would love a CFD program but dont have the cash required. Any others that people would recomend.