Ok now on the return flight and all seems good, thank you all ;)

Definitely can climb high. I did a real world flight the other night from Quebec City to Toronto. Followed Westjet flightplan and cruise level of 40,000ft. Loaded full flight with 15,000 lbs of fuel and reached FL400 about 160 miles from t/d, which is about right for this short flight. Mark.

if you are running fsinn disable vatsim weather and use fsx defult fsx static weather it works for me

Have you tried pressing ALT INTV (altitude intervention). If the plane reaches the alt dialed in on the MCP and ATC levels you off you'll have to press that small button just to the right of the ALT knob to climb again.

Have you tried pressing ALT INTV (altitude intervention). If the plane reaches the alt dialed in on the MCP and ATC levels you off you'll have to press that small button just to the right of the ALT knob to climb again.

Did you even read the whole thread?????

Sounds like you're using FSUIPC wind smoothing with ASE direct wind control. I may be wrong, though.

What would be the problem with this? I'm asking since I use FSUIPC wind smoothing and DWC mode in ASE without any issues.

If using FSinn whats your TAT and OAT showing?

this is all very interesting, ill also check my OAT

Ok, thank you all, Burnspot find the solution what I did, put the FSinn weather on Cavok then in the world-weather, i put updated realistic weather now TAT is minus 18C and performance is back to, what I think, normal :) thank you all, fantastick product too!

Is normal -18C At FL300? In my mind would be around -40C!!! Please advise!

FSINN is horribly broken with regards to air temperature. Don't use its weather. -stefan

Is normal -18C At FL300? In my mind would be around -40C!!! Please advise!

I would suppose that would have a lot to do with the conditions in the area and the season. I don't see why -18C would be unreasonable at altitude in some regions.

I would suppose that would have a lot to do with the conditions in the area and the season. I don't see why -18C would be unreasonable at altitude in some regions.

Ok. I really do not know if the variance in this alt is high like shown (-18 to -40). In Brz i am reading -17C in FL300.(Without FSINN) Really there is a problem with FSINN that insist in Shown +38C in this level.... Thanks

This drove me mad way before the NGX arrived on the scene. FSINN would give crazy high alititude temp readings and make a lot of jets perform weird. Its weather simulation is crap. Now once i've logged onto VATSIM I just hit CAVOK and chose FSX real world weather.