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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsV-Bar › At a low HS the vbar causes heli to bobble
04-03-2012 12:46 AM  9 years ago
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Scott1115

rrElite Veteran

Greenwich, CT

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At a low HS the vbar causes heli to bobble
At a low HS the vbar causes heli to bobble. It seems to wobble in space until I get the HS up. I notice this when I go into TH for landing. At idle 1 my HS is 1850 and in idle 2 it's 2050. Normal mode, the HS comes from the throttle curve. Once I hit TH, and the HS dies off, the heli begins to wobble. I was told the vbar does not like the low head speed with stiff dampeners and this causes the wobbling. If this is the case, how do you finish an auto or, in my case, land it without staying in idle1 (I prefer to land in TH)?

At 1850 it's fine. It happens when I come in to land. I slow down, come to hover and hit TH, as head speed bleeds off and the heli begins to sink, it wobbles. I'm using the standard Align black dampeners.
Compass 7HV, Trex 550E
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