If you need to relax and unwind, one way is to watch someone hand-build a remote-controlled scale replica of a Ferrari 250 GTO. The build begins with the car’s space frame, which was constructed ...

An rc flying wing, some people call it zagi wing, but it's the same. These kinds of aircraft are very unstable and need a special airfoil to help have a stable flight, so cg is critical as well to ...