Here you can download free plans for a foam rc plane.
Vladamir Sprite Hot on the slope
Flying Slow Fly Homemade RC plane Duo
How to make a crash-proof 3D foam RC plane
HOW TO BUILD A RC AIRPLANE F22, F35 AT HOME
Building the RC model airplane every body loved
How to make CARDBOARD RC PLANE
Building & Flying a 20lb Pumpkin plane!
Flying motorcycle Drone
Online calc of the CG of an RC airplane