Originally Posted by mutt
In the FMS equipped aircraft, try changing the Cost Index Value to 0, also input route winds from the flight plan, then review the optimum flight level.
Mutt
Thanks
Mutt, I will try that at the next opportunity I get to fly this aircraft. I would always input the flight plan winds on longer sectors but never noticed a change in the optimal altitude displayed. I was working on a cost index analysis when that job ended, so one had not yet been set. Next time I will look for that. These days, I fly the older jet with Garmin 530/430 GPS/Comms. Somewhat less sophisticated to say the least. Wonderful boxes for prop airplanes, but not ideally suited for jet ops I'm afraid.
Best regards,
Westhawk