ORIGINAL: mr_matt
ORIGINAL: highhorse
Seems to me that unless you're up against an rpm limit reducing the EGT will enable a higher ff (fuel flow) until the limit is again reached.
AFAIK, all modern turbines are RPM limited. Much like an IC motor, if there is no load, they will reach RPM limit while making little power
ORIGINAL: highhorse
And when RPM is the limit, consricting the exhaust will raise the thrust and EGT to the even as the ff remains constant.
Don't understand this.
You're saying that the ECU's don't limit ff as the egt limits are reached? On a hot day, for instance? Or are you saying that there is no egt limit at all? How can a turbine not be "loaded" and make "little power" while running at it's limit rpm? Please elaborate? And I don't understand what you don't understand....constricting the exh raises the thrust and the egt, does it not?