[NoDOHC]

The nice weather will soon be over. This sounds like a winter project with a notepad and a calculator. I think I loaned engine dynamic analysis book to a friend, as I can't find it anywhere. If I can find it, I will try to derive the equations for a rotary engine (from the piston engine equation derivation explanations in the book). It has been too long since I studied any of this for me to trust my memory.

I know that the rotary engine has a 298 degree intake port duration each revolution, making the airflow into the two rotors overlap (one is still filling when the other starts). This is also why the engine is so smooth, as the power strokes of the two rotors overlap. The actual maximum to minimum volume cycle of the engine occurs in 270 degrees of eccentric shaft rotation.

Do you have an engine apart so that you can get a feel for what it does as it turns?

I can try to get pictures, but a photographer I am not (as I think is evidenced by many of my pictures on this site).

For what it's worth I think this development is very helpful to the community and I appreciate your enthusiasm and effort on the project so far.

Thanks!