It's a toy that requires electricity.
in a toy shop
A remote control is an electronic device used for the remote operation of a machine.
Here you can buy all kind of RC Helicopter and RC airplanes http://www.agehobby.com
Electric remote control cars can be purchased in most good toy shops including The Entertainer, Toys 'R' Us, WHSmith and Argos. They can also be purchased for smaller children at the Early Learning Centre.
You would first need to know what materials you need to buy and what kind of airplane you want to build. You would need a plan for the airplane and what is the best kind of electric rc ariplane to build.
I have a remote control airplane. I hike in remote locations.
you can't
The company that makes the best quality remote control airplane parts would probably be www.rc.com they have the biggest and best quality selection of RC airplane parts.
A remote controlled toy is an excellent gift for a child. They will have hours of fun enjoying the toy, and it's even possible for very young children to improve hand-eye coordination through remote controlled toys.
because it is broken
Depends what it is made of and where it is broken.
One can make a toy airplane by purchasing or cutting out wood wings and a body. Then cut a slit in the two sides of the body and insert the wings. To make a paper airplane, simply fold the airplane in half, then fold the sides down at an angle to create the wings.