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Old 29th Aug 2016, 09:10
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error_401
 
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How to PROPERLY trim a medium jet aircraft

Hi flight testers,

I'm having a little issue on day to day operations on medium jets as to how correctly and properly trim a medium jet. I say medium jet because that is my actual work-horse but in general I'm referring to a swept wing jet aircraft with powered controls.

A long time ago an ex test-pilot on light aircraft (Piper) told me this:

You start with the rudder trim in order not to sideslip the aircraft. Once it flies straight and tends to roll you may apply a bit of aileron trim.

This also worked out nicely on the ATR turboprop and in cruise flight a gain or loss of 1 - 3 knots could be observed between a good trim and a poor trim. (Not talking about loading here).

Anybody a good insight into how to properly trim a swept wing jet and why?

Thanks for your insights.
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