Hello,
I wasn't sure where this should be posted so I decided to here. I recently found this software called Rapid Resizer in a woodcarving magazine. Its for quickly and easily resizing patterns for carvers. As soon as I watched the video, the light bulb came on! This would be perfect for resizing plans of planes.
http://www.rapidresizer.com/ (http://www.rapidresizer.com/) I haven't tries it yet myself but there is a 14 day free trial version.
This next software is called Modelbuilder and I have owned it for several years. Its meant to be used for designing and printing cardstock buildings for model train layouts. I have used it for making cardmodels for my wargames. After looking at Lou's hangar back drop photos, I realized the same thing can be done using this software. Maybe I'll make a 1/144 air museum ;D
http://www.modeltrainsoftware.com/model-builder.html (http://www.modeltrainsoftware.com/model-builder.html)
There's a video showing how it works and a customer gallery. You can also print at any scale!
Peter