THRUST REDUCTION
MANY TIMES IT IS NOT NECESSARY TO TAKEOFF AT MTOW, HENCE IT IS NOT NECESSARY TO USE THE MAX. T/O THRUST. THE BENEFITS OF THRUST REDUCTION ARE :-
LOWERING OF TURBINE INLET TEMPERATURE HENCE INCREASED ENGINE LIFE.
DECREASE MAINTENANCE COSTS.
THERE ARE TWO WAYS FOR THRUST REDUCTION:-
FIXED DERATE (EQVT. TO HAVING A LESS POWERFUL ENGINE)
ASSUMED TEMPERATURE METHOD