747 trim

[Guest poschrob]

Hi,I don't know whether it's correct or not, but when starting the 744 from cold and dark, turning everything on for the before start stage (so hyd demand pumps OFF), I can still move the stab trim.According to the manual, it is powered by the # 3 hyd dem. pump. Still, the indicator on the center pedestal is moving accordingly when I adjust it without hydraulic power.Is this the normal behaviour?Regards,Rob

[Qavion 19]

"Is this the normal behaviour?"Nope... previously noted... Try using "hydraulic stab trim" as an advanced Search phrase. Topic #130893 highlights this error.Cheers.Q> イアンP.S. Did you mean the stab trim indicatorS either side of the thrust levers?P.P.S. Note that the Rudder Trim pointer WILL move without hydraulics (but the rudder won't)

[Guest poschrob]

Hello Q>,correct, I meant the stab trim indicator on the left side of the thrust levers.Regards,Rob