Kraga Kodo is a completely 3D printed RC plane which can be build using only glue and a 3D printer.
The creator of the model had bad experience with existing 3D models for RC airplanes so he created his own. The possibility to create complex structures to build lightweight wings for the RC plane was utilised in the models. These were also optimised for FFF 3D printing.
The Kraga Kodo is the result of many optimisations of these plans. All the 52 parts for the plane can be printed between 55 and 75 hours. The plans can be bought for just 25$ at 3DprintedRCplanes. All you need are the electronics, glue, foil and carbon rods.