billdunn wrote:

General question; how many power pulses are there per revolution on these rotary engines, say

the

20B with two rotors.
Thanks
Bill

The 13B is two rotors. Two power pulses per rev. The 20B is three rotors.
Three power pulses per rev.

Paul Lamar

Bill, here is one of Paul's graphs that gives some detail on this.
Royce
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