This tutorial will tell you an easy way to XML mod your planes with no mods! So, first of all, go to your files, Users, select your user, Appdata, LocalLow, Jundroo, SimplePlanes, AircraftDesigns, then select your plane, open with Notepad (so you can edit it) find the code for the right part, say fuselage, and find the code for fuselage length and width, and put in the value you want, then save, then load up SimplePlanes, find the plane you edited, then BOOM you have your edited plane. Your welcome, Enjoy!