Geez, give the guy a break. Markus, if you look at the other posts where someone is woking on desiging a new engine, you will see that they are ALWAYS met with people trying to shoot them down.
NC Cams, although I agree with some of your points, what are you doing in your spare time?
It may never beat a piston engine, but its still pretty darn cool to design something different and see it run.

Joe