In the "CAD and Design" forum, here are my thoughts for starter threads:

• How much do you use CAD and/or Paper to do design work?

• Design Concepts (Trade technical design concept ideas on this thread)

• Design, by TYPE:
> Scale Design
> Pattern, 3D, and other aerobatic designs
> Prop "Jets"
> Ducted Fan and Turbines
> Helicopters
> Sailplanes
> "Other" designs

• Airfoils, Flaps, Slats, etc.

• Landing Gear Design (fixed, retracts, and floats)

• How do you get plans from CAD to paper, to cut parts & assemble planes?

• CAD Library -a place for CAD users to trade parts (for example, if you've made an accurate engine or radio part, you could share it with others here. These could be 3D parts or 2D "templates" of parts.)

• CAD "Real Flyers" Image Gallery (a place to show off real RC Designs)

• CAD "Dreaming" Image Gallery (a place to show off conceptual designs)

• Performance Visualization (Share any methods you know of to predict the performance of new designs, including formulas and software.)

I'm sure there are a lot more subjects that will come up, but these might give us a pretty good start. I'm anxious to participate in these discussions with other designers!

Thanks!