Re: how do use CAD
Don't get discouraged it is a bit to learn though at first. But with a few basic commands you can be well on your way to 2d drawing. I type my commands in because i started on CAD 6 and just stuck with the habit so I cant help you in telling you what the buttons are without looking at them but you will find that you use a few commands over and over and will allow you to get most everything done.
Line - L or line
Trim - Trim
Extend - Extend
Circle - Circle
Spline - Spline (play around with this, you will use it for many aircraft related curves) I use it a lot to import a picture and "trace" over it. It's like bending apiece of wire, you can get any shape you want.)
Many commands you can just type in at the command bar.
If you seearch hard you will even find dxf drawings of airfoils on line.
Good luck
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