Well, it's good to know that I can't reverse the 46AX's direction....now I won't go downstairs and try it. Also, I'd like to correct myself when I said that it'd be dangerous for one engine to run lean. I meant for one engine to run that much richer than the other. If reversing direction drops a couple hundred revs, then you'd have to richen the other to overcome that difference. I forgot that dropping a couple hundred revs is no big deal if its just by richening...so cancel that. The one thing I can't remember is if you'd want the engines rotating inwards or outwards. If one engine goes out, then one case is better than the other...i just can't remember which. Now, wouldn't it be nice to have an R/C CR plane?? Most full-scale twins don't have counter-rotating props. My dad's Beechcraft Baron B-55 doesn't, Seneca's don't, and Twin Commanches don't. I think Navajo's come with that option. Anyway, I think it'd be a fun project for someone with the thumbs to try it.(pretty sure, correct me if I'm wrong)