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Other › Rave Vibrations
09-05-2009 12:35 AM  8 years agoPost 1
Jgatorman

rrVeteran

Birmingham, AL

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Hey everyone just bought a rave used. I love it. However I swapped the 5065 cyclic servos for some 287's and now while in idle up with a scorpion -8 3s and 350s whenever I give aileron input I get a mild to violent vibration seen in the skids and canopy. I thought I did a poor job glueing in the dampners so I re did it with new dampners and still did not fix. I am wondering if the 287's are not stong enough for the heli or if the links might be to tight even though they don't feel that way to me Any and all suggestions would be helpful. Especially Brian's please help thanks

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09-05-2009 12:47 AM  8 years agoPost 2
Jgatorman

rrVeteran

Birmingham, AL

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just want to mention it stops vibrating when I drop the head speed in normal mode I am running linear curve in normal and 100% flat in idle up with a 13 tooth pinion

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09-05-2009 12:54 AM  8 years agoPost 3
AcidKindred

rrApprentice

Mobile, AL - USA

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Could be the head is too tight, bent spindle, tracking. But if it started when you swapped out the servos it could be that the geometry is off or binding.

I have spoken with a couple of pilots that use the 287MGs and they work well for them but the torque could be probamatic.

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09-05-2009 01:26 AM  8 years agoPost 4
Jgatorman

rrVeteran

Birmingham, AL

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I have all new head parts I am assuming the vibration is coming from some sort of binding. I hope I may have found some of the issue in the plastic washout arms , they seem to have been a little tight so I loosened the screws slightly slightly and the swash seems to move a little more freely. If I have a binding issue it would be in the swash for with the swash isolated rest of the head moves freely. I just want to know if there is binding in the swash could that cause the vibration and if so why only in idle up.

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