SimBrief ignores Cruise Level Offset

I made a new Profile for the Beech 18. The service ceiling is 20000 ft, but the cruise alttitude is 7000-9000ft because the Beech is not pressurerized. I therefor chose the Cruise Level Offset of M9750, but SimBrief gives me a OFP with FL170 as cruise alttitude and I used the Routefinder with 9000ft and 140 Kts TAS.

Is this a Bug or am I missing something?


Please try changing the “Ceiling” option instead. That should force it to cruise lower.

The “Cruise Level Offset” is mostly used by the altitude optimizer, which might not work as expected with lighter GA aircraft.

Best regards,