Every year Model Airplane News used to print up a listing of there plans and I have a couple of them I cut out. There address was WWW.RCSTORE.COM www.rcstore.com can't tell if it was in caps or not. Plan #FSP04742 they have a phone number here too if it's still correct or not? 800-537-5874 if not then just pick up a MAN and look in the back for any new information. This one is a 48 inch span and calls for a .60 engine. They also have the 61 inch FSP03951 for .90 to 1.20 so it's 1/4 scale. As Minn said, if you haven't got a lot of stick time there are better bipes to look at. If you haven't built a bipe before you need to find someone with a good incidence meter too. Mater of fact, if you plan on being a builder then the meter is used on any and all of your builds. The Pitts is a very advanced plane to build and fly but the smaller one looks like it isn't very hard to build, it's only one sheet for plans and the 1/4 scale is a three sheet set of plans.