Mach-Up is a free, web-based conceptual design tool. Because it's web-based, you can access it anytime from anywhere.
Check it out here: www.mach-up.com
- Quickly design airframes
- Create beautiful images
- Share your designs with others
- Interface with other CAD software
Works on Mac, PC, iPad, iPhone, and Android.
This is an idea I've had for several years. Just had to do it and get it out there.