This is another very interesting graphic with no explanation given.
Apparently this blows the rich mixture out of the trailing
portion of the combustion chamber. In that case it is
similar
to my stratified charge idea.
Paul Lamar

Paul, This is a very interesting idea. It is also interesting to note that 
experiments with piston engines showed trouble burning the mixture anytime 
the crown to head distance is less than .010 inches. There are several examples 
of hemi head engines that simply didn't work until they installed dual ignition. 
Real tight squish bands on 2 strokes as well. The hemi head Kawasaki Z1 900cc 
race engines of late 70's vintage was an example. The high dome piston caused 
detonation that just vanished when they went to 2 plugs! The power was NOT 
changed but reliability went way up. Bill Jepson

The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2003 All world wide rights reserved.