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Home✈️Aircraft🚁HelicopterHIROBOHirobo Turbulence › SSZ-IV Centre Pin
09-05-2015 11:39 PM  4 years ago
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PaulBowen

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Australia

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SSZ-IV Centre Pin
Hello,

Just wondering the consensus on the installation of the grub screw securing the centre pin to the spindle. This is on the flybarless head on the Turbulence D3v2 but would also apply to other Hirobo models. I have noticed that with the grub screw installed the spindle is about 0.5mm offset to one side.

So the question is to grub screw or not to grub screw? Does it make a difference and if so what?
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09-06-2015 01:36 AM  4 years ago
TMoore

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Cookeville, TN

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I've run them both ways, doesn't make much difference.Part 107.
The only ZERO flight hour certificate in the world.
It's like getting a driver's license without the driver's test.
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09-07-2015 03:13 PM  4 years ago
Dr.Ben

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Richmond, VA, USA

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+1
The center teeter does very little in a head with dampening as stiff as the stock IV has. I always pulled mine because a little axle lead-lag is not a bad thing, especially at lower head speeds.

NOW, if dampening is softer and the head is built in a trailing pitch arm configuration, the the center teeter becomes quite necessary.

Ben Minor
Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA
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09-07-2015 08:24 PM  4 years ago
PaulBowen

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Australia

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Thanks guys I was considering removing the grub srew to allow the spindle to find it's own natural centre position. I am running softer damping on this head. It is the flybarless version.
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