I started drawing with angles , 'T' square and pencils of different hardness! Then a Amiga 200 and a then very good CAD program. Then to AutoCAD in '94'. been in it ever sense! All my designs are done 2D. I have used SolidWorks 2016 3D at work, but on simple shape and nothing like a fuselage or wing. I am hoping to get into AutoCAD 3D, I have ACAD 2014.