This mode of operation best suited for high part-load efficiencies and low wetness at S/T
The output of G/T is controlled by changing the amount of fuel supply.
In upper load range, it can sometimes also be adjusted by varying the amount of intake air.
By variable inlet guide vane
For 80-100% GT load, the TIT remain constant. Below that level, TIT must be reduced to protect the last stage blade from higher temp