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HelicopterAlignOther › Linkage setup??
09-13-2007 04:28 PM  10 years agoPost 1
FlaHeli

rrApprentice

Jacksonville. Fl-USA

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We have several 600s flying but we have noticed that there is a lot of linkage interaction at the top because the side servos are at their top dead zone when aileron inputs are given. So is everybody using the recommended setups in the 600 n pro manual or something different that has less interaction?

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09-13-2007 05:21 PM  10 years agoPost 2
jaxrotor

rrKey Veteran

Jacksonville FL

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I dont really understand what your saying..What equipment are you using? How much cyclic?

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09-13-2007 05:57 PM  10 years agoPost 3
reiserrob2003

rrVeteran

Brockton, MA.

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I think he's getting servo coupling. Maxing out aileron causes changes in elevator and pitch. If thats whats happening then maybe you need to set cyclic deflection to no more than 7 degrees. meaning, if your blades are at 0 degrees when you give either full aileron or elevator the pitch of your blades should not exceed appx. 7 degrees. anything usually more will cause swash binding and coupling not to mention bogging of head speed

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09-13-2007 06:29 PM  10 years agoPost 4
FlaHeli

rrApprentice

Jacksonville. Fl-USA

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That is it,,,, basically you are at full pitch and when you give say left ail input, one servo arm moving is at it's top dead zone meaning that the there is more horizontal travel than vertical while the other travels down and therefore moves more along the vertical. This causes a down force on the swash causing it to tilt up or a up elevator movement. I find that even a 8 degrees cyclic I get mixing all the way down from 13 degrees to 9 degrees pitch. I am using 9252s.

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09-13-2007 07:23 PM  10 years agoPost 5
DS 8717

rrProfessor

Here wishing i was​somewhere else

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Do you have the aileron travel maxed out in the swashplate mixing,you dont have to have equal numbers there,like you do in the ATV settings.

YOU ONLY LIVE ONCE..IF YOU LIVE IT RIGHT THATS ALL YOU NEED

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09-14-2007 01:02 AM  10 years agoPost 6
reiserrob2003

rrVeteran

Brockton, MA.

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one thing I've learned is that your setup on the bench is no representation of what happens at the field. In other words, You will most likely never see full cyclic deflection and full collective at the same time in the air, maybe if your Alan Szabo or something but pretty much all helis will start coupling and binding at some point. If you add +8 cyclic to a full +11 or +12 degrees you're already up to 19 or 20 degrees, which is beyond the mechanical limits of any heli. I suggest that if the swashplate is not binding for most of the collective range you will be fine in flight.

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