Kiwon Kim

Autopilot disengaged and nose up while crusing at FL330

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Hi

I have experienced many times autopilot lights off and VNAV disengaged

and then plane nose up about 30~40 degrees 

I need to nose down and make plane stable manually 

I though there are some bugs.. so i reinstalled NGX737 but it's not helpful..

I want to know why this happen

Does anyone have same situation?

Please help me

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Hello,

 

Most likely something interferring with the controls. An axis or a button set to the trim or to the elevator control or your hardware that sends spikes interpretated as if you moved these controls.

Check your assignement, try to disconnect your hardware to try to identify the cause.

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I had this problem not long ago and my flight stick was the problem, even after calibrating it would loose the settings but have had it for some time replaced it and the problem was solved.

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47 minutes ago, Budbud said:

Hello,

 

Most likely something interferring with the controls. An axis or a button set to the trim or to the elevator control or your hardware that sends spikes interpretated as if you moved these controls.

Check your assignement, try to disconnect your hardware to try to identify the cause.

I am using X-55 with software provided saitek and FSUIPC 

when i am flying on cruising i never touch my controllers but this happened  

Today , I was approaching KORD 27L by ILS, suddenly  this happened again 

anyway,  i need to check my hardware setting ...kind of stick sensitivity for elevation ...right?

Thanks for the tip ^^

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36 minutes ago, rjfry said:

I had this problem not long ago and my flight stick was the problem, even after calibrating it would loose the settings but have had it for some time replaced it and the problem was solved.

what kind of stick did you got this problem?  I have X-55 saitek 

Calibrating means on P3D or FSUIPC or the others?

 

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My old one was thrustmaster  but as the springs have worn for cantering the stick this caused it to loose calibration, and I was getting auto pilot dropout without touching the stick, the down side is my new stick feels stiff until I get used to it.

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