Quench?

Thanks, moper, that sure makes sense. I can see how a progressive combustion can aid the power stroke. It amazes me that engineers can time the sequences so precisely in such a rapidly moving rotating assembly.

I am trying to remember what my dad told me about flying the Lockheed Constellation in the old days. Being a Flight Engineer, he would monitor a device on his panel that actually showed the flame propagation inside the combustion chamber. He would control/fine tune the condition by adjusting mixture and timing, if I remember correctly.