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HelicopterFlybarless Rotor Head SystemsOther › GAUI Flybarless head
12-25-2008 08:47 PM  8 years agoPost 21
QueeQueg

rrVeteran

West Texas

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For anyone interested. I got a Gaui 450 head and the bearing pockets are deep enough for a set of thrust bearings.

I put a set of Align TRex 450 bearings in it and used longer bolts and it's a perfect fit

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01-10-2009 05:09 AM  8 years agoPost 22
reiserrob2003

rrVeteran

Brockton, MA.

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I just picked up the 500 combo today, there were no instructions on how to setup the head, what about phasing angle? and is it possible to just use the Align grips, head block and just use the Gaui follower?

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01-10-2009 02:09 PM  8 years agoPost 23
Eury

rrProfessor

Dover NH

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Just adjust the swash follower so the links between your swash and grips are perfectly vertical.

Nick Crego

Citizen #0168

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01-13-2009 06:24 PM  8 years agoPost 24
reiserrob2003

rrVeteran

Brockton, MA.

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thats what I did, thanks, I tried it out today and the head seems to jerk violently on spool up, is that normal or do I need to lessen the gain controls?

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01-13-2009 06:31 PM  8 years agoPost 25
reiserrob2003

rrVeteran

Brockton, MA.

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one more question, if i do use the TREX 500 head for the flybarless conversion, will the stock grips work as is or do I have to extend the arms out to the same distance as the Gaui grips, I realize the further out you go from the grip the less movement you'll get per swash movement, how important is the distance?

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01-13-2009 06:32 PM  8 years agoPost 26
Eury

rrProfessor

Dover NH

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No, it should act pretty much like a normal head. I wonder if it might be picking up vibrations that are causing it to behave like that?

The distance out on the grips is an important feature, it increases the resolution of your controls.

Nick Crego

Citizen #0168

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01-13-2009 07:59 PM  8 years agoPost 27
Jag72

rrProfessor

South of Boston

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Gaui Head...

A buddy of mine just converted a logo 500 with a modified Gaui Head...

The Gaui head is VERY tall...but with a little work it can be "chopped"

Now the head sits nice and low...VERY cool..

Before and after photos

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01-13-2009 08:51 PM  8 years agoPost 28
reiserrob2003

rrVeteran

Brockton, MA.

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so, if it is important, will the unmodified TREX grips be alright to use or do I need to lengthen the arms?

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01-13-2009 08:54 PM  8 years agoPost 29
reiserrob2003

rrVeteran

Brockton, MA.

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I'm actually going to chop my GAUI head tonight but I need a 3mm and 8mm drill bit first, I noticed the head was not machined out 8mm to the top, only allowing the mainshaft to be inserted up to a certain distance.

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01-13-2009 08:55 PM  8 years agoPost 30
reiserrob2003

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Brockton, MA.

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Jag, nice work on the head, looks like it should've came like that.

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01-13-2009 09:50 PM  8 years agoPost 31
QueeQueg

rrVeteran

West Texas

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The Gaui 450 head is quite a bit lower than the stock TRex 450 head.

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01-13-2009 10:30 PM  8 years agoPost 32
bonzai888

rrNovice

Ma

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Actually (Jag's) it's a Trex 500 with a Gaui Flybarless head mod.

RChover.com has ALL the Gaui parts in stock and they have few Trex 500 and Proto flybarless with this mod.

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01-14-2009 01:11 AM  8 years agoPost 33
QueeQueg

rrVeteran

West Texas

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Yea I knew that I was just mentioning that the 450 class head is already much lower.

Don't know why they saw fit to make the 500 Class head so high

Unless they're worried about boom strikes

let us know how the mod works out for you.

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01-15-2009 03:36 AM  8 years agoPost 34
reiserrob2003

rrVeteran

Brockton, MA.

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yup, the Gaui head chop went great, but I broke the set screw for the follower and had to get a new one today, the head block actually sits close to an inch lower so it loooks much more natural, the reason why it is so high to begin with is it was actually designed to hold a lower flybar for a traditional setup.

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