My last three flights all ended in disaster or near disaster. Preparations went smoothly as always, take off normal. However, the outside air temperature decreases way too slowly and the aircraft is hardly able to climb. After a very long time cruise altitude is reached (or not if the flight is a bit shorter). Outside air temperature is about -9 degrees at 35000 ft.

Descent seems normal but on final the aircraft starts to behave very oddly. I get a constant "buffet alert" in the FMC, the engines will not power up, with or without auto throttle engaged or they will power up but  I still get a "thrust required" warning and the aircraft is sinking alarmingly. The aircraft does not react to autopilot inputs and I can't stabilize it by hand. 

I've heard somewhere about the too high temperature issues but I can't find a solution.

 

 

Please help !

 

martin bunjes

 

Besides FSX I have FSUIPC (registered) , GSX, EZdok, Active sky next with soft clouds, a lot of hardware with SIOC running, on a client pc there's PF3,Navigraph charts, PFPX and Google earth for flight following.

 

 

However, the outside air temperature decreases way too slowly and the aircraft is hardly able to climb. After a very long time cruise altitude is reached (or not if the flight is a bit shorter). Outside air temperature is about -9 degrees at 35000 ft.

 

Flying online?

Ah, I knew I'd forgotten something. No, not flying online. All the weather is handled by REX and ASN

 

 

FSUIPC (registered)

 

Any weather modifications running in FSUIPC?

Axis assignments?

No weather modifications in FSUIPC. Yes, all my hardware axis are assigned through FSUIPC, this has always worked flawlessly for me. 

 

 

Yes, all my hardware axis are assigned through FSUIPC, this has always worked flawlessly for me. 

 

Put the FSUIPC.ini on the desktop temporarily. Run the sim. Check for the issue. If it's still there, it's likely the throttle axis (occasionally the flap axis). Either way, put the FSUIPC.ini back into the sim directory (let it overwrite the new one created when the sim was last run). Then, go in and remove the axis assignment in FSUIPC, then assign it only through the sim. You can leave whatever calibration in FSUIPC (reverse zones, etc).

Thanks I'll try that.

I did try it and it didn't make any difference. The aircraft would hardly climb, the oat was way too high and on finals the throttle could only be controlled by switching the autopilot off.

Have you tried running without Active Sky (try default, clear weather).

I did try it and it didn't make any difference. The aircraft would hardly climb, the oat was way too high and on finals the throttle could only be controlled by switching the autopilot off.

Our aircraft doesn't control the weather. If OAT isn't dropping on schedule, it's a weather issue - program or otherwise.

You may want to check to see if FSX controls are enabled. I get issues when using FSUIPC and FSX.