This is what the burn rate looks like. (One of the best examples of the 210 samples taken during this log.)
The red line is the pressure of rotor compression without ignition.
The blue line is ignited pressure.
The purple line is the temperature of the burning mixture. Notice it is still 1400°C when the exhaust port opens.
The pressure at exhaust port opening (EOP) is 91 psi.
A detonation rating of 65/88/0 shows up for this #64 cycle. Since it has 0 frequency I am assured by the Mentor that it is benign. (But whenever the peak pressure is advanced below 45° it gets some of these readings.)
The HP and torque readings are off in this sample because I am using the wrong displacement calculations.
Barry