Old Smokey, thanks for your insights.
Using my “extracted” data, I’ve generated power required curves, for different altitudes, using graphs of thrust available versus mach from the engine manufacturer. I then took the excess power, and computed best rate of climb. The results were quite close to reality. However, the speeds are substantially less than the flight manual in mach and cas. I’m considering making some adjustments to e and Cdo, however I can only imagine this will skew out some other data, such as climb rate, absolute ceiling, max speed, endurance, range etc.
You’re probably wondering why I’m trying to re-create the wheel.
Hawk