Gyro problems

[Wendell Miller]

I have a Futaba 401 gyro that I just installed in my helicopter. My T/R
servo is a Hitec HS525BB which Helicopter World assured me would work great
when I bought the gyro. My problem is that in heading hold mode, the tail
wags like it's hunting for a heading. When I put a rudder command in it
begins to wag, getting worse and worse until I set the heli down. I tried
adjusting the delay on the gyro, but it didn't seem to help. It flys with
no problem in rate mode. Does anyone have an idea what could be wrong?

[Smog]

> I tried adjusting the delay on the gyro

Delay or gain ?
Try turning the gain down while in HH mode. Usually by altering the ATV
points, for that particular channel, within your TX

--

Jim Burrill

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"Wendell Miller" <wendellmiller@nospamcharacterlink.net> wrote in message
news:bi6ooo$b7re$1@news3.infoave.net...
> I have a Futaba 401 gyro that I just installed in my helicopter. My T/R
> servo is a Hitec HS525BB which Helicopter World assured me would work
great
> when I bought the gyro. My problem is that in heading hold mode, the tail
> wags like it's hunting for a heading. When I put a rudder command in it
> begins to wag, getting worse and worse until I set the heli down. I tried
> adjusting the delay on the gyro, but it didn't seem to help. It flys with
> no problem in rate mode. Does anyone have an idea what could be wrong?
>
>
>
>


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[Philip Martin]

"Wendell Miller" <wendellmiller@nospamcharacterlink.net> wrote in message
news:bi6ooo$b7re$1@news3.infoave.net...
> I have a Futaba 401 gyro that I just installed in my helicopter. My T/R
> servo is a Hitec HS525BB which Helicopter World assured me would work
great
> when I bought the gyro. My problem is that in heading hold mode, the tail
> wags like it's hunting for a heading. When I put a rudder command in it
> begins to wag, getting worse and worse until I set the heli down. I tried
> adjusting the delay on the gyro, but it didn't seem to help. It flys with
> no problem in rate mode. Does anyone have an idea what could be wrong?
>
What heli is it?

What Tx?

Wagging is normally a sign of too higher gain setting for that particular
mode. Obviously your gain setting for Rate mode is ok, but for HH you need
to adjust it down.

The 525BB isn't the greatest servo around, but for the price its pretty dam
good. I use one on the tail of me Hawk with no problems. However I can tell
its not as fast as the JR 2700 on the tail of me X-Cell.

Phil Martin.



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[Wendell Miller]

"Philip Martin" <philip.martin1@btinternet.com> wrote in message
news:bi770q$5q9gr$1@ID-129488.news.uni-berlin.de...
>
> "Wendell Miller" <wendellmiller@nospamcharacterlink.net> wrote in message
> news:bi6ooo$b7re$1@news3.infoave.net...
> > I have a Futaba 401 gyro that I just installed in my helicopter. My T/R
> > servo is a Hitec HS525BB which Helicopter World assured me would work
> great
> > when I bought the gyro. My problem is that in heading hold mode, the
tail
> > wags like it's hunting for a heading. When I put a rudder command in it
> > begins to wag, getting worse and worse until I set the heli down. I
tried
> > adjusting the delay on the gyro, but it didn't seem to help. It flys
with
> > no problem in rate mode. Does anyone have an idea what could be wrong?
> >
> What heli is it?

It's a Hawk Sport

>
> What Tx?

Hitec Eclipse 7

>
> Wagging is normally a sign of too higher gain setting for that particular
> mode. Obviously your gain setting for Rate mode is ok, but for HH you need
> to adjust it down.
>

I'll try adjusting the endpoints for heading hold and see if that helps.

Thanks for your help!

> The 525BB isn't the greatest servo around, but for the price its pretty
dam
> good. I use one on the tail of me Hawk with no problems. However I can
tell
> its not as fast as the JR 2700 on the tail of me X-Cell.
>
> Phil Martin.
>
>
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.510 / Virus Database: 307 - Release Date: 14/08/2003
>
>

[Carl Farrington]

Wendell Miller wrote:
> "Philip Martin" <philip.martin1@btinternet.com> wrote in message
> news:bi770q$5q9gr$1@ID-129488.news.uni-berlin.de...
>>
>> "Wendell Miller" <wendellmiller@nospamcharacterlink.net> wrote in
>> message news:bi6ooo$b7re$1@news3.infoave.net...
>>> I have a Futaba 401 gyro that I just installed in my helicopter.
>>> My T/R servo is a Hitec HS525BB which Helicopter World assured me
>>> would work great when I bought the gyro. My problem is that in
>>> heading hold mode, the tail wags like it's hunting for a heading.
>>> When I put a rudder command in it begins to wag, getting worse and
>>> worse until I set the heli down. I tried adjusting the delay on
>>> the gyro, but it didn't seem to help. It flys with no problem in
>>> rate mode. Does anyone have an idea what could be wrong?
>>>
>> What heli is it?
>
> It's a Hawk Sport
>
>>
>> What Tx?
>
> Hitec Eclipse 7
>
>>
>> Wagging is normally a sign of too higher gain setting for that
>> particular mode. Obviously your gain setting for Rate mode is ok,
>> but for HH you need to adjust it down.
>>
>
> I'll try adjusting the endpoints for heading hold and see if that
> helps.
>

It will..

[Beav]

----- Original Message -----
From: "Wendell Miller" <wendellmiller@nospamcharacterlink.net>
Newsgroups: rec.models.rc.helicopter
Sent: Saturday, August 23, 2003 2:23 PM
Subject: Re: Gyro problems



"Philip Martin" <philip.martin1@btinternet.com> wrote in message
news:bi770q$5q9gr$1@ID-129488.news.uni-berlin.de...
>
> "Wendell Miller" <wendellmiller@nospamcharacterlink.net> wrote in message
> news:bi6ooo$b7re$1@news3.infoave.net...
> > I have a Futaba 401 gyro that I just installed in my helicopter. My T/R
> > servo is a Hitec HS525BB which Helicopter World assured me would work
> great
> > when I bought the gyro. My problem is that in heading hold mode, the
tail
> > wags like it's hunting for a heading. When I put a rudder command in it
> > begins to wag, getting worse and worse until I set the heli down. I
tried
> > adjusting the delay on the gyro, but it didn't seem to help. It flys
with
> > no problem in rate mode. Does anyone have an idea what could be wrong?
> >
> What heli is it?

Not that it makes any difference.

It's a Hawk Sport

>
> What Tx?

Hitec Eclipse 7

That does :-)

>
> Wagging is normally a sign of too higher gain setting for that particular
> mode. Obviously your gain setting for Rate mode is ok, but for HH you need
> to adjust it down.
>

I'll try adjusting the endpoints for heading hold and see if that helps.

End points on the gyro SWITCHING channel are what you need to change,
(usually channel 5) NOT the end points on the rudder channel. (channel 4)


Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[Wendell Miller]

"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:h%O1b.296191$YP.38884@news.easynews.com...
>
> ----- Original Message -----
> From: "Wendell Miller" <wendellmiller@nospamcharacterlink.net>
> Newsgroups: rec.models.rc.helicopter
> Sent: Saturday, August 23, 2003 2:23 PM
> Subject: Re: Gyro problems
>
>
>
> "Philip Martin" <philip.martin1@btinternet.com> wrote in message
> news:bi770q$5q9gr$1@ID-129488.news.uni-berlin.de...
> >
> > "Wendell Miller" <wendellmiller@nospamcharacterlink.net> wrote in
message
> > news:bi6ooo$b7re$1@news3.infoave.net...
> > > I have a Futaba 401 gyro that I just installed in my helicopter. My
T/R
> > > servo is a Hitec HS525BB which Helicopter World assured me would work
> > great
> > > when I bought the gyro. My problem is that in heading hold mode, the
> tail
> > > wags like it's hunting for a heading. When I put a rudder command in
it
> > > begins to wag, getting worse and worse until I set the heli down. I
> tried
> > > adjusting the delay on the gyro, but it didn't seem to help. It flys
> with
> > > no problem in rate mode. Does anyone have an idea what could be
wrong?
> > >
> > What heli is it?
>
> Not that it makes any difference.
>
> It's a Hawk Sport
>
> >
> > What Tx?
>
> Hitec Eclipse 7
>
> That does :-)
>
> >
> > Wagging is normally a sign of too higher gain setting for that
particular
> > mode. Obviously your gain setting for Rate mode is ok, but for HH you
need
> > to adjust it down.
> >
>
> I'll try adjusting the endpoints for heading hold and see if that helps.
>
> End points on the gyro SWITCHING channel are what you need to change,
> (usually channel 5) NOT the end points on the rudder channel. (channel 4)

Thanks, I was wondering about that....

Wendell

>
>
> Beav
>
>
> Please note my E-mail address is "beavis dot original at ntlworld dot com"
> (with the obvious changes)
>
> Beavisland now lives at
> www.beavisoriginal.co.uk
>
>
>

[Beav]

"Wendell Miller" <wendellmiller@nospamcharacterlink.net> wrote in message
news:bi8n0f$ch1m$1@news3.infoave.net...
>
> "Beav" <beavis.original@ntloxoworld.com> wrote in message
> news:h%O1b.296191$YP.38884@news.easynews.com...
> >
> > ----- Original Message -----
> > From: "Wendell Miller" <wendellmiller@nospamcharacterlink.net>
> > Newsgroups: rec.models.rc.helicopter
> > Sent: Saturday, August 23, 2003 2:23 PM
> > Subject: Re: Gyro problems
> >
> >
> >
> > "Philip Martin" <philip.martin1@btinternet.com> wrote in message
> > news:bi770q$5q9gr$1@ID-129488.news.uni-berlin.de...
> > >
> > > "Wendell Miller" <wendellmiller@nospamcharacterlink.net> wrote in
> message
> > > news:bi6ooo$b7re$1@news3.infoave.net...
> > > > I have a Futaba 401 gyro that I just installed in my helicopter. My
> T/R
> > > > servo is a Hitec HS525BB which Helicopter World assured me would
work
> > > great
> > > > when I bought the gyro. My problem is that in heading hold mode,
the
> > tail
> > > > wags like it's hunting for a heading. When I put a rudder command in
> it
> > > > begins to wag, getting worse and worse until I set the heli down. I
> > tried
> > > > adjusting the delay on the gyro, but it didn't seem to help. It
flys
> > with
> > > > no problem in rate mode. Does anyone have an idea what could be
> wrong?
> > > >
> > > What heli is it?
> >
> > Not that it makes any difference.
> >
> > It's a Hawk Sport
> >
> > >
> > > What Tx?
> >
> > Hitec Eclipse 7
> >
> > That does :-)
> >
> > >
> > > Wagging is normally a sign of too higher gain setting for that
> particular
> > > mode. Obviously your gain setting for Rate mode is ok, but for HH you
> need
> > > to adjust it down.
> > >
> >
> > I'll try adjusting the endpoints for heading hold and see if that helps.
> >
> > End points on the gyro SWITCHING channel are what you need to change,
> > (usually channel 5) NOT the end points on the rudder channel. (channel
4)
>
> Thanks, I was wondering about that....

Well wonder no more Wendell, because if you change the endpoints on the
rudder channel (chan 4) all that happens is you change the SPEED at which
the heli's rotates with a tail rotor input. The higher the number, the
faster the spin and vice-versa.


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk