Here you can download free plans of radio-controlled quadcopter.
Explosive Battle with Two Giant DIY Airplanes
Homemade RC Canard Airplane (AR Solonig)! First Flight
Super Fast homemade rc plane 251 Kmph+ Speedpass
How To Make A RC Flywing | amazing flying Airplane
DIY How to Build a Rc Plane at Home
Twin Boom Specter style HomeMade Pusher R/C plane
$1000 RC plane destroyed in an instant
Traxxas Maxx ZOP Power 4S Battery Test
Online calc of the CG of an RC airplane