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Old 9th May 2009, 01:40
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NSEU
 
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747-400 Engine Trim Behaviour

Hi, folks.
I believe this topic has come up before, but I had trouble finding the right keywords for a forum search.

The FMC trims the engines to equalise thrust if the thrust levers are slightly staggered. If the stagger is too great, does the FMC abandon all trimming completely.. or will it simply trim as much as it can?

Perhaps it continues trimming the within-range engines and abandons, say, a single engines which is out of range?

Thanks.
Rgds.
NSEU
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