Well, to do 3D, it is best to have a profile plane or a 29% or bigger scale aerobatic plane like an edge, extra, cap etc... A good profile plane is a Morris Hobbies Sledge-540. I have a laner pro-twister, which is awesome. About the pattern plane. A pattern plane is designed for extremely smooth aerobatics, that is why they have such a long tail moment. A pattern plane is not a 3D plane. Other aerobatic planes such as a 40 or 60 size would not be good 3D planes. for some reason the small planes do not 3D as good as the big ones. The bigger that plane, the more stable it is. All of the planes in the pictures above are 40% scale. The have about a 10 foot wingspan.