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arko.joardar@gmail.com

PMDG 747(fs9) Auto throttle disconnect

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hey guyzzz i have problem with autothrottle in pmdg .... when reaching my cruising altitude of FL320 after some time there is a FMC message :MAX alt FL150 ... or if i skip it after some time it pops up again and say Max alt FL180 and disconnects my auto throttle ...

pls guyzzz help!!!!!

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Hello there,

 

This message is normally linked to a problem with weather injection: are you using a third party weather programme, or FS9 real-world weather?

 

In some areas the upper temperature information is notoriously unreliable and can occasionally lead to ridiculous temperatures being injected at high altitude (think +40C or similar).

 

This obviously has an impact on the aircraft and engine performance, resulting in a low MAX ALT and severely reduced engine performance, which may in turn lead to disconnection of the A/T and/or A/P.

 

Check the SAT reported on PROG pg 2 when this happens. If you see an unrealistically high number, you have your culprit.

 

Solution: refresh the weather and hope it goes away. If not, you'll probably have to close any third-party weather add-on for the time being and clear the weather until you have left the area with unreliable temperature data.


Simon Kelsey

sig_FSLBetaTester.jpg

 

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I think I found a problem which might cause this it is THE FMC ....  in its 'THRUST LIMIT SECTION' it has only activated <SEL> in TO... but there is no <ACT> in CLB menu .... so how to add <ACT> in it (CLB section???) and how to post an image in the forum....

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