Hi!

Actually in the mentioned video, the Star-3D is virtually controlled as a quadrocopter, so always a pair of motors get the same speed command. That's the same for the Orion 8 Octocopter. Much better performance is achieved by steering each propeller separately. With this depending on the payload it's possible to fly with 2 arbitrarily stopped rotors.

A video with the enhanced controller was done during a meeting in Munich a few weeks ago:

http://video.google.com/videoplay?do...60542334918974

(you can see one stopped propeller during some movements...a cable went loose during a crash and was attached again later.)

BTW: the used components are the same as the (quadro) X-BL: http://video.google.com/videoplay?do...40279491690824

Regard
Jast