There are plenty if scale models that can 3D even with the same scale dimensions on the control surfaces of the real planes. Our RC models will 3D much better then full size planes because the scale weight on RC planes is much lower proportionally. Some of the RC designers just like to push the envelope. The reason why the big planes won't put the larger control surfaces on their planes is not because they don't want too, it's because it will rip their planes to shreds in high speed, full deflection manuevers.