Hi Joe,

You could certainly do that, but a two rotor engine running on one rotor is supposed to be so rough that you might shut it down just to keep from having to put up with it.  I have to admit that I don't completely understand why that is, and I'd appreciate it if someone would explain that to me.    

I had the experience on the ground with only one rotor firing. It is bad. Some instruments just about popped out of their mounts. I would like to know also why is that bad?
Buly