They were radio controlled, What we call a UAV, an unmanned air vehicle. Do you have to take more training on computers when they come out with new ones or is it easy to go from one to another. Well, I have a little bit of a hard time. They try to make them all work the same now, with the UNIX operating system, you can pretty much get right to work on the new computer. Pretty soon, you'll be learning Geometry, if not already.
Geometry is pretty useful.
You will see what I mean about the x-y plots. Then you will study calculus if you are interested in science and math. Calculus will not seem useful right away, but it is the foundation for almost all of modern science. Without even knowing it, we use it or depend on it every day. OOPs, sorry, I mean your Uncle.