The correct thrust line right/left or up/down cannot be built into a kit. This angle will change with engine/propeller. Build the plane following the instructions and when you are done expirmenting to find the best prop then set up the plane for 3-D. First adjust the C.G. then adjust the thrust right/left. Then adjust the wing incidence. Adjust thrust up/down. Correct tip weight and finally elevator alignment. If you don't do it in order you may find that some things must be adjusted several times.