Most of the inexpensive choppers are contra-rotating, they have two main rotors that spin in opposite directions, and are really stable and easy to control. Changing the speed of the two rotors makes the bird yaw, rotor speed controls lift, and there's a conventional swash plate for pitch, which is the only servo needed.
Wow...if that last sentence is true, it's an amazing oversight on the part of the manufacturer. All of the controllers would potentially have this problem. And most of them -- at least the ones not sold to a mechanical engineer -- would have to be replaced.
Are they robots or androids? We're not exactly sure. Each talking, gesturing Geminoid looks exactly like a real individual, starting with their creator, professor Hiroshi Ishiguro of Osaka University in Japan.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.