I know this has probably been touched on many times in past threads. However when I did a search in this forum, I really could not find what I was looking for. Here are my questions:

1) What is a good CAD program, other than AutoCad if there is an alternative, that I can completely design or redesign a large RC plane with?

2) Is there a method of scanning in a 3 view drawing or original set of plans into a particular file format and then be able to modify them with CAD? I have heard the term vectoring but am not sure what that relates to.

3) Can a CAD program be set up with wood stock sizes to be used throughout the drawing such as former or bulkhead widths, stringers, wing spars, etc?

4) My goal is to enlarge a set of plans or 3 views and make all needed and/or wanted changes in scale, design, and stock sizes.

Any information or pointing me to some other threads would be greatly appreciated.

Thanks!

Jay