controlledrest,
If I know the correct Power and Attitude to set the performance will follow
That's exactly why Air Aisa and Air France crashed. I still cannot believe how many people talk about that Power + Attitude = performance. Well it does, but only in a very small regime and usually when everything works alright.
What it really should say is: Power + angle of attack = Performance.
People who flew airplanes with angle of attack indicators in the flight deck know what I'm talking about.
Recovering from a stall at high altitude requires a complete different Attitude. If you just put it to what you assume to be correct attitude and then you wait for the performance, well, you wait for a long time.
Pitch 20 degrees + full power, do you get constant performance?
I thought so too.
The pitch and power equals performance proverb only helps when you on the correct side of the power curve.
So really, look behind the Attitude and start thinking about what angle of attack you have. Then the performance becomes completely predictable.
All performance is based on angle of attack, not speed nor attitude.
Btw, this works on Airbus and on Boeing.