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THS not movable with ELEC pumps on ground


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Posted

In the sim, the Trimmable Horizontal Stabilizer is not movable/trimmable on ground when the ELEC Pumps are ON, not even with ELEC Pumps ON and PTU to the YELLOW system. In this configuration the THS should be movable

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Posted

Hi, 

Thanks for you post. 

Just checking that you tried this with the IRS in ATT phase and the pitch trim switches on? As even with HYD on and PITCH TRIMS off the trim wheel will not move. 

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image.thumb.png.65e0556f34a94d1deefb5756cd0de49e.png

Many thanks 

Posted

I tried it after a flight, after engine shutdown where the IRS's were still aligned. With the hydraulics on, the THS should be movable, because if you have a pitch trim runaway for example, if you hold the wheel with you hand, both Pitch Trim Levers trip off and you will end up in manual control. So you have full authority of the THS just the the trim wheel. For maintenance actions in real life, this should also be possible on ground when the engines are not running.

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