Opps I sent one chart twice and not the other one.
Here it is hopefully.

Paul Lamar

This makes it look worse than it is because it is plotted for one cylinder.
 You have to add 4 of these together with proper phasing to get the
crankshaft torque variation.  It will still have higher peak/mean than the
rotary but wont look as scary as a single cyl.

Jeff Spitzer

Yes. If you look at just that one chart. I had intended to send both different
charts on the same message to make that clear but I screwed up.

See the other two charts I sent that compare the four cylinder with the
two rotor engine. In both of these cases the average torque is the same.
The rotary still comes out ahead as being smoother with no negative torque.

Paul Lamar
 
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