The Tucano is a scale plane, which is also available in a 40 size. Considered to be a 3rd style plane for the most part. Mine with the TT 91 FS turns a 14x6 at 9300 richened to 9100 on Byron 15%. It doesn't have unlimited vertical but it goes for a while. Had I gone with a Saito and a smaller battery pack I could have gotten it down almost a 1/2 lb. lighter. But I already had what is in it. It's a fast moving plane. Which brings up a question I have. When put slightly downward at full throttle,and it's moving pretty good, it misses a beat or two occasionaly. Could this be valve float or is it leaning out? Seems if I change the high side from where it is it just isn't as good a runner. I've never heard or read of valve float on any four stroke. Is it an issue? Other than that it runs great. I hear they have a 120 size Starship coming in the future. MMMMMMMMMMMM