12. The method of claim 2, further comprising:
repeating said adjusting said bulk combustor flame temperature if a high pressure turbine outlet temperature at said minimum temperature operational boundary is less than a predetermined upper limit high pressure turbine outlet temperature and said temperature window size is less than said predetermined minimum window size.
13. The method of claim 1, further comprising:
activating an alarm if a NOx emissions level at said maximum temperature operational boundary is greater than a predetermined upper limit NOx emissions level and said temperature window size is less than said predetermined minimum window size.
14. The method of claim 2, further comprising:
repeating said adjusting said bulk combustor flame temperature if a high pressure turbine outlet temperature at said nominal ring flame temperature is greater than a predetermined upper limit high pressure turbine outlet temperature.
15. The method of claim 2, further comprising:
repeating said adjusting said bulk combustor flame temperature if a NOx emissions level at said nominal ring flame temperature is greater than a predetermined upper limit NOx emissions level limit.