Can anyone tell me some good sites to learn how make RC planes/helicopters?

especially how to make it radio controlled

Good for you, it's a great hobby. My favorite hobby websites are horizonhobby.com towerhobbies.com all have airplanes and helicopters, but a good heli website is heliproz.com I assume you are looking for kits and building is very rewarding. For helicopters, you can build from a kit, but I recommend an ARF (almost ready to fly) or a ready to fly heli. For a beginner, an E-Flite Blade CX2 is a good stable heli to learn on, or a Hirobo SRB Quark. Model Airplane News is a good magazine also. I hope this helps and that you do well !!