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Old 26th Feb 2017, 14:32
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Concours77
 
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From Chris Scott:

"The function of any auto-trim system is to remove the necessity for the PF or AP to continue to command the deflection of a primary flight control. In this case the auto-trim is concerned with pitch control, and adjusts the incidence (angle) of the THS (trim-able horizontal stabiliser) to enable the elevators to return to neutral in a few seconds after they have been deflected to comply with a command from the pilot or AP for a pitch-change (actually, in the case of C*, a change in normal G)."

A question? I asked Owain Glyndwr at one point why the graph in the report of the THS movement looks "smooth"? Yet the graph of the stick trace looks anything but? The trace is full of bumps, up and down....

If the THS moves as a result of pilot command, wouldn't the system itself be representative of the pilots "choppy" stick movement?

Owain Glyndwr responded that he did not have the integration constant, so could not comment why the graphs were "seemingly" disparate?

Wouldn't this work have been done by the report? It would seem obvious to show the system worked as designed? If it is in the report, please disregard my question....
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