Nutball
The sturdy little Nutball. Want to build one? Click on the attachments below. I fly a small and light version in the gym which is 14" diameter, with a 1811 2000KV motor, 6x5" prop, 3g servos and 360mAh battery. The motor setup can easily take a 16" diameter version.
Cllick here for forum on building it.
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Trimming Guide
The consummate guide to trimming your aircraft by Peter Goldsmith. If you want your plane to fly correctly, use this guide. Additionally, the chart is a summary which is great to take to the field.
Float Design
Thinking about making floats? Have a park flyer you would like to jump from a puddle? Want to have some great fun at Dr. Ed's Float fly? Here are some construction articles for making floats.