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HelicopterSynergy R/COther › Ball Link Rubs Head Block
11-29-2007 03:38 PM  10 years agoPost 1
creightoncarr

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Missouri City, Texas - USA

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My head is currently setup with +/- 13 degrees on collective and 8 degrees on cyclic all the way around. I am using the Hyperlevers and grips. At about -12 degrees on the collective, the bottom ball link on the linkage rod between the Hyperlever and the flybar cage makes contact and rubs the bottom corner of the head block when cyclic input is anywhere near the lower corners (back elevator and aileron in either direction). This is not a huge concern with this setup as I don't go into the corners when flying, however, I prefer to setup the head with closer to 9 degrees on cyclic; with 9 degrees on cyclic the binding occurs with much less input. In the bottom corners the binding is bad enough the head will stop spinning if I'm turning it by hand. It's obvious to me from the rub mark on the head block that it was hitting in flight before I reduced the cyclic to 8 degrees. My link lengths are all close to the lengths specified in the manual and my pitch ranges are all symmetrical with 0 at midstick. Is this binding common or am I missing something on my setup? Any suggestions would be appreciated. I can post more info on the head setup if needed. Thanks.

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11-29-2007 05:39 PM  10 years agoPost 2
f penfold

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uk

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is your heli turned on in those pics becase your mixing levers sre not level if it is on How have u got 13 degress of pitch on your head ie via radio or mechanical set up?

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11-29-2007 06:02 PM  10 years agoPost 3
Chuckie

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Crofton Maryland

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Following up on what f penfold said. There is an update on the Synergy web site about the link length from the washout arm to the control arm cage. You can increase the length of the link and check to make sure the arm doesn't bind on the inner ring of the swash.

Also if you're going to run +-13 pitch you might want to install the long link balls on the seesaw and bell mixer.

The second item is talked about here.

Charles

Please stand by for faster service!

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11-29-2007 08:35 PM  10 years agoPost 4
creightoncarr

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Missouri City, Texas - USA

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is your heli turned on in those pics becase your mixing levers sre not level if it is on How have u got 13 degress of pitch on your head ie via radio or mechanical set up?
No power in the first two photos. Powered on in the last three. Mechanically I believe I can get closer to 14 or 14 1/2 degrees of pitch. I've limited it to 13 degrees through the radio.

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11-29-2007 08:42 PM  10 years agoPost 5
creightoncarr

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Missouri City, Texas - USA

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The second item is talked about here.
Thanks for the link. I'll adjust the lengths of the washout links, setup the head again and see if there is any improvement.

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HelicopterSynergy R/COther › Ball Link Rubs Head Block
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