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Old 22nd Aug 2007, 21:43
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Brenoch
 
Join Date: Oct 2000
Location: Costa del Thames
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757/767 autopilot trim

Haven't found an answer to this in any books available and I haven't been able to figure out a good way to test it in the sim so here goes;
During a triple channel approach does the autopilot trim the stabilizer at full rate or at half?
Looking at schematics it would suggest that the right autopilot would trim the stabilizer through the right trim motor and left/centre would use the trim motor powered by the centre hydraulic system. (Valid for 757, 767 is obviously L and C hydraulic but the idea is still the same)
I do realise these schematics are overly simplified in the pilots manual but it looks much the same in the AMM.
Cheers

Last edited by Brenoch; 28th Aug 2007 at 01:43.
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