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HomeAircraftHelicopterFlybarless Rotor Head SystemsAlign 3G › 3gx Level how to do it right,.
01-27-2012 03:38 AM  6 years agoPost 1
spy29

rrApprentice

USA

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hey guys

theres debate.. here locally on how to correctly set the 3gx unit,

when it drifts left to right or front and back while hovering.
any of you FBL gurus wanna shed some light?

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01-27-2012 05:15 PM  6 years agoPost 2
wifeorheli

rrElite Veteran

reno, nevada usa

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theres several things. Are you 100% sure your swash is level at mid stick? everything at 90 degs. did you get the maximum gain possible? what are your gains at?

Novarossi Motors U.S.A
www.PLanethobby.com
Team GrandRc.com
Team Byron Fuels
ZRC U.S.A. "PushGlo, SwitchGlo"

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01-28-2012 05:23 AM  6 years agoPost 3
spy29

rrApprentice

USA

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yes ..its all good...the software mentions something about the heli not flying level .. but never explains how to correct it.

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01-29-2012 05:00 PM  6 years agoPost 4
GetToDaChopper

rrElite Veteran

Las Vegas , NV

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come on is this the best you guys can do for this user ??? can anyone that knows this system give some input here ??? i think we can do better than this here......

    ▲
  ▲ ▲
▲ ▲ ▲ One of a Kind !!!

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01-29-2012 08:48 PM  6 years agoPost 5
coolice

rrKey Veteran

Northamptonshire, England

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Hey.

I'm struggling fully to understand if what you are describing to us is induced by the gains for instance, or that the model just exhibits an out of trim issue.

Drift is where the model will not stay in one spot, which will happen if the controls are left untouched as the 3G/GX does not have a position hold facility. This would require a GPS module.

You can use your transmitter trims in the normal way to account for any slight out of trim scenario of the model, if you have to add large amounts of trim then I would suggest checking the swashplate is level throughout it's range of travel.

However, if you are refering to seeing the fuselage of the model oscillating while in the hover, similar to a tail wag when the gyro gain is set too high, then this can be caused by too high a overall gain or lock gains.

If you can describe to me a little mroe what your symtoms are.
.

Ian Contessa
Team Robbe SchluterUK
Midland Helicopters

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01-30-2012 12:29 AM  6 years agoPost 6
spy29

rrApprentice

USA

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thanx coolice,
i was refering to an "out of trim" condition..ex. in a hover heli keeps pitching backward ,,,,,,i have tried to adjust the linkage it does not work..,,, is there a way to adjust/level a 3gx without using the stick trims?

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01-30-2012 05:08 PM  6 years agoPost 7
coolice

rrKey Veteran

Northamptonshire, England

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Hey.

No, there isn't any other way to trim the 3GX during flight except via the Tx trims.
From the bench setup and during DIR mode the neutral position is learnt by the 3GX, hence the need to have level servo arms and a mid-stick collective pitch position throughout the rest of the DIR mode setup phase. From here with the swashplate level the models hovering trim should be within a couple of clicks of Tx trim, this has been the case for my own models.

How is your centre of gravity on the model? If the model is tail heavy then this can cause a backward drift for instance.
.

Ian Contessa
Team Robbe SchluterUK
Midland Helicopters

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01-30-2012 07:10 PM  6 years agoPost 8
Bell Bloke

rrKey Veteran

UK

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I'm with Coolice, that's what I do too.
Either mechanically, C of G and then trim on the day from tranmitter.
So far it works perfect for me.
Hi Coolice!

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01-30-2012 09:15 PM  6 years agoPost 9
coolice

rrKey Veteran

Northamptonshire, England

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I'm with Coolice, that's what I do too.
Either mechanically, C of G and then trim on the day from tranmitter.
So far it works perfect for me.
Hi Coolice!
Hello mate.

How you keeping? Long time no speak!
.

Ian Contessa
Team Robbe SchluterUK
Midland Helicopters

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01-30-2012 09:53 PM  6 years agoPost 10
spy29

rrApprentice

USA

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thanx guys..!!

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01-30-2012 10:31 PM  6 years agoPost 11
Bell Bloke

rrKey Veteran

UK

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Hi Coolice, yes alls good now, life is great, work is great now too.
Are you with the Midland Boys now?
What you using your HC 3SX on and how's it going?

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