I just went in and took a little look, some good planes in there. The D-7 is showing 40ci but they mean it's a .40 size plane so there is your engine guide line. I tried to look at a couple of the plans but it goes right to my CD maker and I can't see them before I copy. Not all plans are designed the same!! I will mark the site though and try a down load after I finish the build I have on my bench right now. I spotted a Sukhoi in there I wanted to look at.