Quote Originally Posted by Eventorizon View Post
Going back the multiple brushless set up, Dave told me that the dual set up in 360 was a little pointless as no two motors were identical so eventually the weapon would only be driven by one motor as one would be more powerful than the other. So you would end up with the same issue but worse!
Hmm, didn't some people we all know build a dragster with six chainsaw motors and have it work quite well? I suspect that in a multi-motor drive some motors will be running hotter but that the power output will be the average of all the motors combined.

A centrifugal clutch might work, but it will need to be much larger than a go-kart size to handle all the power and the recoil when the weapon hits something. Didn't Sam have issues with the clutch in his new bot? I know he ended up removing it to improve the spin-up time.

If you wanted to equal the power of an Etek (Peak 15Hp, 11,190 watts), it will take 4.2 NTM50-60 motors (2,665W) so let's say 5 motors. The cost for the motors is about half of an Etek so its not a bad choice on paper. The ESCs are more expensive but still much cheaper than the recommended Etek ESC. Like Ellis and others have already said, there will probably be efficiency problems meaning that you need extra motors and batteries.