Some cool power of free Work:
SmallB free flight plan 2
Image by xddorox
Hand drawn plan of a powered free flight model of my own design. Wingspan is 16 inches. Feel free to download and build. Just download both images in large and print on an 8.5X11 sheet each. Multiply everything by 1.75 and you have the Bouncing Betty P30 with 28 inch wingspan.
Just post pictures of your built models, I would greatly appreciate that.