At this point, you have all the tools you need to add Arduino to an RC-controlled airplane. So, let's tackle that project. You're going to add control so that you can control your RC plane from a phone, tablet, or any device with Bluetooth capability. Then, you'll learn how to add some of the additional sensors you've used in other projects, such as GPS, to make your RC plane even more intelligent by making it autonomous.

First, find an RC airplane. They are available at most RC hobby stores and online. I ordered this one from amazon.com:

You could use one of the many different makes and models of RC planes for this project, as long as they meet a few requirements. If you are new to RC airplanes and how they operate, you might first read about them at www.instructables.com/id/Beginners-Guide-to-Radio-Control-Airplanes/. The first requirement for this project is that the plane must be RC controlled and the RC unit must control the servos and speed of the unit...