I use a 22", 11"and 4" all handy tools for building. Another handy tool that I use to rough out the bevels is a small plastic plane
http://www2.towerhobbies.com/cgi-bin...&I=LXAA64&P=ML
which is faster and makes less dust. After it is close a lot less sanding to get the final result. It'll also come in handy to do the fillet on the tail feathers and leading edges of the wings.