Re: Gyro location question [Archive]

Courseyauto

Apr 29, 2004, 10:00 PM

Beavis spued forth:
The gyro reacts to yaw movements only and as odd as it may be, every part of
the helicopter rotates at the same speed as every other part. If it takes
the heli one second to rotate a full 360 degrees, ALL the heli rotated 360
degrees in that one second, so the gyro has no idea where it is. (well it
got dizzy see? :-)

.................................................. .........................
.................

Then your also saying the tip of a propellor travels the same speed as the
section 1 inch from the hub?
DOUG

The Observer

Apr 29, 2004, 10:00 PM

Courseyauto wrote:
> Beavis spued forth:
> The gyro reacts to yaw movements only and as odd as it may be, every part of
> the helicopter rotates at the same speed as every other part. If it takes
> the heli one second to rotate a full 360 degrees, ALL the heli rotated 360
> degrees in that one second, so the gyro has no idea where it is. (well it
> got dizzy see? :-)
>
>
> .................................................. ........................
> ................
>
> Then your also saying the tip of a propellor travels the same speed as the
> section 1 inch from the hub?
> DOUG

That's what he's saying and he's quite right. A perfect gyro reacts to
angular rotation rate only (omega in physics books, measured in degrees
or radians per second), not to linear speed (which is higher the farther
away you go from the axis of rotation). Angular rotation rate is
identical at all locations on a rigid body. So a perfect gyro wouldn't
care where it was located.

My question really related to a real gyro as opposed to a perfect one.
Is there any cross coupling in a real piezo gyro (CSM400 in this case)
between rotation rates and other accelerations that would make it better
to locate it in one place rather than another?

The Observer

Apr 29, 2004, 10:00 PM

Beav wrote:

>
>
> Leave the extension leads out of the equation and get the gyro to a place of
> least damage should the heli lawn dart.

That requires being able to foretell the future - how will this heli
meet its end?

So far I've put them in tail first, main rotor first, mid-air with
another heli, and into a lake after a blade holder let go.
I don't think I've ever put one in nose first.

Beav

Apr 29, 2004, 10:00 PM

"Courseyauto" <courseyauto@aol.com> wrote in message
news:20040429184454.03209.00000502@mb-m28.aol.com...
> Beavis spued forth:
> The gyro reacts to yaw movements only and as odd as it may be, every part
of
> the helicopter rotates at the same speed as every other part. If it takes
> the heli one second to rotate a full 360 degrees, ALL the heli rotated 360
> degrees in that one second, so the gyro has no idea where it is. (well it
> got dizzy see? :-)
>
>
> .................................................. ........................
> ................
>
> Then your also saying the tip of a propellor travels the same speed as
the
> section 1 inch from the hub?

You know full well I'm not.

You also know full well that it makes not one bit of difference to the gyro
function where on the heli it's sitting.
Ok, I chose the wrong description about the speed because I didn't add the
distance, but the distance isn't a measure of the gyro anyway, so it's moot.

--
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

Apr 29, 2004, 10:00 PM

"The Observer" <penniless@ameritech.net> wrote in message
news:c6s2gc$ffbli$1@ID-75863.news.uni-berlin.de...
>
>
> Courseyauto wrote:
> > Beavis spued forth:
> > The gyro reacts to yaw movements only and as odd as it may be, every
part of
> > the helicopter rotates at the same speed as every other part. If it
takes
> > the heli one second to rotate a full 360 degrees, ALL the heli rotated
360
> > degrees in that one second, so the gyro has no idea where it is. (well
it
> > got dizzy see? :-)
> >
> >
> >
.................................................. .........................
> > ................
> >
> > Then your also saying the tip of a propellor travels the same speed as
the
> > section 1 inch from the hub?
> > DOUG
>
>
> That's what he's saying and he's quite right. A perfect gyro reacts to
> angular rotation rate only (omega in physics books, measured in degrees
> or radians per second), not to linear speed (which is higher the farther
> away you go from the axis of rotation). Angular rotation rate is
> identical at all locations on a rigid body. So a perfect gyro wouldn't
> care where it was located.
>
> My question really related to a real gyro as opposed to a perfect one.
> Is there any cross coupling in a real piezo gyro (CSM400 in this case)
> between rotation rates and other accelerations that would make it better
> to locate it in one place rather than another?

No. It can be mounted on the top of the tail fin and STILL work just as
well.

Lean it over during installation though (and LEAVE it leaning over) and it's
all bets off. the gyro HAS to be perpendicular to the main shaft in the
pitch axis and the roll axis, and that's IT. It can't do anything BUT work
if it's like that.

--
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

Apr 29, 2004, 10:00 PM

"The Observer" <penniless@ameritech.net> wrote in message
news:c6s2m7$fe0dt$1@ID-75863.news.uni-berlin.de...
>
>
> Beav wrote:
>
> >
> >
> > Leave the extension leads out of the equation and get the gyro to a
place of
> > least damage should the heli lawn dart.
>
> That requires being able to foretell the future - how will this heli
> meet its end?

Well they don't nomrall reverse so far into the floor that the tail boom is
totally buried leaving the next point of contact a rear mounted gyro. They
DO have a penchant for sticking their beaks into the dirt though.
>
> So far I've put them in tail first, main rotor first, mid-air with
> another heli, and into a lake after a blade holder let go.
> I don't think I've ever put one in nose first.

Aren't you the lucky one:-) And one of a very few too, so you're double
lucky;)

--
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

Tom Minger

Apr 30, 2004, 04:00 AM

"X5" <I.Need@spam.co.uk> wrote in message
news:40916e94$0$2981$fa0fcedb@lovejoy.zen.co.uk...
> Helicopter yaws left, does fore / aft + sideways remain constant to keep
> helicopter on the spot? what happens if you apply yaw only? Move gyro
> further away from centerline is angular travel the same, the answer is no.
>

The distance it moves is larger, but the angular rotation is the same. The
gyro senses angular movement. That's why is doesn't matter where on the heli
you put the gyro (rigid structure, protected area, etc issues aside). The
other requirement is that the sensing axis of the gyro be paralell to the
main shaft.

The Observer

Apr 30, 2004, 01:00 PM

Beav wrote:
> "The Observer" <penniless@ameritech.net> wrote in message
> news:c6s2gc$ffbli$1@ID-75863.news.uni-berlin.de...
>
>>
>>Courseyauto wrote:
>>
>>>Beavis spued forth:
>>>The gyro reacts to yaw movements only and as odd as it may be, every
>
> part of
>
>>>the helicopter rotates at the same speed as every other part. If it
>
> takes
>
>>>the heli one second to rotate a full 360 degrees, ALL the heli rotated
>
> 360
>
>>>degrees in that one second, so the gyro has no idea where it is. (well
>
> it
>
>>>got dizzy see? :-)
>>>
>>>
>>>
>
> .................................................. ........................
>
>>>................
>>>
>>> Then your also saying the tip of a propellor travels the same speed as
>
> the
>
>>>section 1 inch from the hub?
>>> DOUG
>>
>>
>>That's what he's saying and he's quite right. A perfect gyro reacts to
>>angular rotation rate only (omega in physics books, measured in degrees
>>or radians per second), not to linear speed (which is higher the farther
>>away you go from the axis of rotation). Angular rotation rate is
>>identical at all locations on a rigid body. So a perfect gyro wouldn't
>>care where it was located.
>>
>>My question really related to a real gyro as opposed to a perfect one.
>>Is there any cross coupling in a real piezo gyro (CSM400 in this case)
>>between rotation rates and other accelerations that would make it better
>>to locate it in one place rather than another?
>
>
> No. It can be mounted on the top of the tail fin and STILL work just as
> well.
>
> Lean it over during installation though (and LEAVE it leaning over) and it's
> all bets off. the gyro HAS to be perpendicular to the main shaft in the
> pitch axis and the roll axis, and that's IT. It can't do anything BUT work
> if it's like that.
>
>

It's good to know that a real commercial product behaves "perfectly"! :-)

Robert Mulligan

May 01, 2004, 01:00 PM

Courseyauto

May 01, 2004, 01:00 PM

"Courseyauto" <courseyauto@aol.com> wrote in message
news:20040429184454.03209.00000502@mb-m28.aol.com...
> Beavis spued forth:
> The gyro reacts to yaw movements only and as odd as it may be, every part
of
> the helicopter rotates at the same speed as every other part. If it takes
> the heli one second to rotate a full 360 degrees, ALL the heli rotated 360
> degrees in that one second, so the gyro has no idea where it is. (well it
> got dizzy see? :-)
>
>
> .................................................. ........................
> ................
>
> Then your also saying the tip of a propellor travels the same speed as
the
> section 1 inch from the hub?
> DOUG

>No Doug,
>He is saying that all of the Heli travels at the same RATE no matter >where
>you measure that RATE... not the same thing as distance or speed...

Well it sure looks like he said "the helicopter rotates at the same speed as
every other part" The End of the tail boom travels at a faster rate of speed
than the tip of the canopy. As soon as you place the gyro sensor off the
dead center of rotation, a side ways movement is induced,which the sensor
cannot detect. I have to agree that placing the sensor closest to the center of
rotation will make it the most sensative to rotational movement,ie requiring
less gain. DOUG

Paul McIntosh

May 01, 2004, 01:00 PM

Rotational speed is measured in RPMs, not FPS. He is right that every part
of the heli rotates at the same RATE.

--
Paul McIntosh
http://www.rc-bearings.com
"Courseyauto" <courseyauto@aol.com> wrote in message
news:20040501073613.05848.00000422@mb-m01.aol.com...
> "Courseyauto" <courseyauto@aol.com> wrote in message
> news:20040429184454.03209.00000502@mb-m28.aol.com...
> > Beavis spued forth:
> > The gyro reacts to yaw movements only and as odd as it may be, every
part
> of
> > the helicopter rotates at the same speed as every other part. If it
takes
> > the heli one second to rotate a full 360 degrees, ALL the heli rotated
360
> > degrees in that one second, so the gyro has no idea where it is. (well
it
> > got dizzy see? :-)
> >
> >
> >
.................................................. .........................
> > ................
> >
> > Then your also saying the tip of a propellor travels the same speed as
> the
> > section 1 inch from the hub?
> > DOUG
>
> >No Doug,
> >He is saying that all of the Heli travels at the same RATE no matter
>where
> >you measure that RATE... not the same thing as distance or speed...
>
> Well it sure looks like he said "the helicopter rotates at the same
speed as
> every other part" The End of the tail boom travels at a faster rate of
speed
> than the tip of the canopy. As soon as you place the gyro sensor off
the
> dead center of rotation, a side ways movement is induced,which the sensor
> cannot detect. I have to agree that placing the sensor closest to the
center of
> rotation will make it the most sensative to rotational movement,ie
requiring
> less gain. DOUG
>
>

Beav

May 01, 2004, 10:00 PM

"Courseyauto" <courseyauto@aol.com> wrote in message
news:20040501073613.05848.00000422@mb-m01.aol.com...
> "Courseyauto" <courseyauto@aol.com> wrote in message
> news:20040429184454.03209.00000502@mb-m28.aol.com...
> > Beavis spued forth:
> > The gyro reacts to yaw movements only and as odd as it may be, every
part
> of
> > the helicopter rotates at the same speed as every other part. If it
takes
> > the heli one second to rotate a full 360 degrees, ALL the heli rotated
360
> > degrees in that one second, so the gyro has no idea where it is. (well
it
> > got dizzy see? :-)
> >
> >
> >
.................................................. .........................
> > ................
> >
> > Then your also saying the tip of a propellor travels the same speed as
> the
> > section 1 inch from the hub?
> > DOUG
>
> >No Doug,
> >He is saying that all of the Heli travels at the same RATE no matter
>where
> >you measure that RATE... not the same thing as distance or speed...
>
> Well it sure looks like he said "the helicopter rotates at the same
speed as
> every other part"

How long have you "known" me Doug? Do you rally think I don't know what I'm
talking about? Is a simple wording error from me like some prize you won.
You KNOW I meant at the same rate.

The End of the tail boom travels at a faster rate of speed
> than the tip of the canopy. As soon as you place the gyro sensor off
the
> dead center of rotation, a side ways movement is induced,which the sensor
> cannot detect. I have to agree that placing the sensor closest to the
center of
> rotation will make it the most sensative to rotational movement,ie
requiring
> less gain.

Well you'd be as wrong as it's possible to get if that's what you think.

--
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

May 01, 2004, 10:00 PM

"Paul McIntosh" <paul@mcintoshcentral.com> wrote in message
news:iaNkc.36484$h44.5449321@stones.force9.net...
> Rotational speed is measured in RPMs, not FPS. He is right that every
part
> of the heli rotates at the same RATE.

Doug is being Mr Sillyboy again.

Simply put, the gyro moves in a circular motion as fast as the rest of the
heli, (angular movement) so if it takes a minute to rotate 360, it ALL takes
a minute, and if it takes a split second, then it all takes the same split
second. NOTHING ELSE MATTERS.

If the gyro was mounted at the end of a stick poking out of the nose of the
heli for 300 miles, it would STILL work in precisely the same way as far as
holding the tail is concerned. I'm surprised that Doug can't grasp that.

Well actually, I'm not.

--
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

Paul McIntosh

May 01, 2004, 10:00 PM

Depending on the design of the gyro, it CAN make a difference how far the
gyro is from the center of rotation. Some are merely accelerometers rather
than true gyros. Those kind measure acceleration along a line and if you
move them farther from the center of rotation, the acceleration will be
greater.

--
Paul McIntosh
http://www.rc-bearings.com
"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:1097up9lrqvmq57@news.supernews.com...
>
> "Paul McIntosh" <paul@mcintoshcentral.com> wrote in message
> news:iaNkc.36484$h44.5449321@stones.force9.net...
> > Rotational speed is measured in RPMs, not FPS. He is right that every
> part
> > of the heli rotates at the same RATE.
>
> Doug is being Mr Sillyboy again.
>
> Simply put, the gyro moves in a circular motion as fast as the rest of the
> heli, (angular movement) so if it takes a minute to rotate 360, it ALL
takes
> a minute, and if it takes a split second, then it all takes the same split
> second. NOTHING ELSE MATTERS.
>
> If the gyro was mounted at the end of a stick poking out of the nose of
the
> heli for 300 miles, it would STILL work in precisely the same way as far
as
> holding the tail is concerned. I'm surprised that Doug can't grasp that.
>
> Well actually, I'm not.
>
>
> --
> 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
>
>
>
>
>

The Observer

May 02, 2004, 01:00 PM

"Speed" is not as well defined as, say, linear velocity or angular
velocity which are precise terms. We often talk of rotor "speed" or
engine "speed" in rpm, or the speed of a pump in gallons/minute. Speed
seems to be a generic scalar term for rates of almost any kind.

Paul McIntosh wrote:
> Rotational speed is measured in RPMs, not FPS. He is right that every part
> of the heli rotates at the same RATE.
>
> --
> Paul McIntosh
> http://www.rc-bearings.com
> "Courseyauto" <courseyauto@aol.com> wrote in message
> news:20040501073613.05848.00000422@mb-m01.aol.com...
>
>>"Courseyauto" <courseyauto@aol.com> wrote in message
>>news:20040429184454.03209.00000502@mb-m28.aol.com...
>>
>>>Beavis spued forth:
>>>The gyro reacts to yaw movements only and as odd as it may be, every
>
> part
>
>>of
>>
>>>the helicopter rotates at the same speed as every other part. If it
>
> takes
>
>>>the heli one second to rotate a full 360 degrees, ALL the heli rotated
>
> 360
>
>>>degrees in that one second, so the gyro has no idea where it is. (well
>
> it
>
>>>got dizzy see? :-)
>>>
>>>
>>>
>
> .................................................. ........................
>
>>>................
>>>
>>> Then your also saying the tip of a propellor travels the same speed as
>>
>>the
>>
>>>section 1 inch from the hub?
>>> DOUG
>>
>>>No Doug,
>>>He is saying that all of the Heli travels at the same RATE no matter
>>
>>where
>>
>>>you measure that RATE... not the same thing as distance or speed...
>>
>> Well it sure looks like he said "the helicopter rotates at the same
>
> speed as
>
>>every other part" The End of the tail boom travels at a faster rate of
>
> speed
>
>>than the tip of the canopy. As soon as you place the gyro sensor off
>
> the
>
>>dead center of rotation, a side ways movement is induced,which the sensor
>>cannot detect. I have to agree that placing the sensor closest to the
>
> center of
>
>>rotation will make it the most sensative to rotational movement,ie
>
> requiring
>
>>less gain. DOUG
>>
>>
>
>
>

The Observer

May 02, 2004, 01:00 PM

Paul McIntosh wrote:

> Depending on the design of the gyro, it CAN make a difference how far the
> gyro is from the center of rotation. Some are merely accelerometers rather
> than true gyros. Those kind measure acceleration along a line and if you
> move them farther from the center of rotation, the acceleration will be
> greater.

Is this measuring centripetal acceleration? Which gyros do it this
way, anyway? How does it eliminate other linear accelerations?

Paul McIntosh

May 02, 2004, 01:00 PM

And, when it is qualfied with the terms rotational or angular, it is fairly
well defined.

--
Paul McIntosh
http://www.rc-bearings.com
"The Observer" <penniless@ameritech.net> wrote in message
news:c72phv$hegdl$1@ID-75863.news.uni-berlin.de...
> "Speed" is not as well defined as, say, linear velocity or angular
> velocity which are precise terms. We often talk of rotor "speed" or
> engine "speed" in rpm, or the speed of a pump in gallons/minute. Speed
> seems to be a generic scalar term for rates of almost any kind.
>
> Paul McIntosh wrote:
> > Rotational speed is measured in RPMs, not FPS. He is right that every
part
> > of the heli rotates at the same RATE.
> >
> > --
> > Paul McIntosh
> > http://www.rc-bearings.com
> > "Courseyauto" <courseyauto@aol.com> wrote in message
> > news:20040501073613.05848.00000422@mb-m01.aol.com...
> >
> >>"Courseyauto" <courseyauto@aol.com> wrote in message
> >>news:20040429184454.03209.00000502@mb-m28.aol.com...
> >>
> >>>Beavis spued forth:
> >>>The gyro reacts to yaw movements only and as odd as it may be, every
> >
> > part
> >
> >>of
> >>
> >>>the helicopter rotates at the same speed as every other part. If it
> >
> > takes
> >
> >>>the heli one second to rotate a full 360 degrees, ALL the heli rotated
> >
> > 360
> >
> >>>degrees in that one second, so the gyro has no idea where it is. (well
> >
> > it
> >
> >>>got dizzy see? :-)
> >>>
> >>>
> >>>
> >
> >
.................................................. .........................
> >
> >>>................
> >>>
> >>> Then your also saying the tip of a propellor travels the same speed as
> >>
> >>the
> >>
> >>>section 1 inch from the hub?
> >>> DOUG
> >>
> >>>No Doug,
> >>>He is saying that all of the Heli travels at the same RATE no matter
> >>
> >>where
> >>
> >>>you measure that RATE... not the same thing as distance or speed...
> >>
> >> Well it sure looks like he said "the helicopter rotates at the same
> >
> > speed as
> >
> >>every other part" The End of the tail boom travels at a faster rate of
> >
> > speed
> >
> >>than the tip of the canopy. As soon as you place the gyro sensor off
> >
> > the
> >
> >>dead center of rotation, a side ways movement is induced,which the
sensor
> >>cannot detect. I have to agree that placing the sensor closest to the
> >
> > center of
> >
> >>rotation will make it the most sensative to rotational movement,ie
> >
> > requiring
> >
> >>less gain. DOUG
> >>
> >>
> >
> >
> >
>

Beav

May 02, 2004, 10:00 PM

"Paul McIntosh" <paul@mcintoshcentral.com> wrote in message
news:t8Tkc.36549$h44.5476200@stones.force9.net...
> Depending on the design of the gyro, it CAN make a difference how far the
> gyro is from the center of rotation. Some are merely accelerometers
rather
> than true gyros. Those kind measure acceleration along a line and if you
> move them farther from the center of rotation, the acceleration will be
> greater.

I can't say I'm aware of any gyro that uses accelerometers and not piezo
crystals though Paul.

--
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

Paul McIntosh

May 02, 2004, 10:00 PM

A piezo crystal IS an accelerometer. It uses the bending of the crystal to
send out a voltage. These crystals bend when a voltage is applied and send
out a voltage when bent.

--
Paul McIntosh
http://www.rc-bearings.com
"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:109afsl4tcs41df@news.supernews.com...
>
> "Paul McIntosh" <paul@mcintoshcentral.com> wrote in message
> news:t8Tkc.36549$h44.5476200@stones.force9.net...
> > Depending on the design of the gyro, it CAN make a difference how far
the
> > gyro is from the center of rotation. Some are merely accelerometers
> rather
> > than true gyros. Those kind measure acceleration along a line and if
you
> > move them farther from the center of rotation, the acceleration will be
> > greater.
>
> I can't say I'm aware of any gyro that uses accelerometers and not piezo
> crystals though Paul.
>
>
>
> --
> 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
>
>

The Observer

May 03, 2004, 10:00 PM

Yes, but the normal piezo "gyro" contains two crystals aligned so that
their 3rd rank electromechanical coupling tensors cancel for linear
accelerations, and an output is only generated for rotations.

It is unclear to me why a simple accelerometer would even be considered
for determing rotation rates when the bicrystal configuration is readily
available.

Paul McIntosh wrote:

> A piezo crystal IS an accelerometer. It uses the bending of the crystal to
> send out a voltage. These crystals bend when a voltage is applied and send
> out a voltage when bent.
>
> --
> Paul McIntosh
> http://www.rc-bearings.com
> "Beav" <beavis.original@ntloxoworld.com> wrote in message
> news:109afsl4tcs41df@news.supernews.com...
>
>>"Paul McIntosh" <paul@mcintoshcentral.com> wrote in message
>>news:t8Tkc.36549$h44.5476200@stones.force9.net...
>>
>>>Depending on the design of the gyro, it CAN make a difference how far
>
> the
>
>>>gyro is from the center of rotation. Some are merely accelerometers
>>
>>rather
>>
>>>than true gyros. Those kind measure acceleration along a line and if
>
> you
>
>>>move them farther from the center of rotation, the acceleration will be
>>>greater.
>>
>>I can't say I'm aware of any gyro that uses accelerometers and not piezo
>>crystals though Paul.
>>
>>
>>
>>--
>>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

May 03, 2004, 10:00 PM

"Alan" <alandotrait@btopenworlddot.com> wrote in message
news:c76f4t$63d$1@sparta.btinternet.com...
> >
> As per our chat ce soir, the gyro WILL go back to CSM, and the servo is on
> it's way to JR as we speak.
>
> Talking about gyros. Also flew the Logo yesterday, and that was
interesting!
> (CSM 400). Took it for a circuit and on the first turn, the tail went not
> just hunting, but hunting across about a dozen counties!! It was WILD.
>
> Got it down and that was the END of flying for the day. On inspection
today,
> the servo was so far of centre it was untrue! Took it through the setup
> routine again and all seems to be well though I've not flown today.

I have this feeling Al:-)

Whenever you "play" with the radio, you're less likely to have problems like
this if you run the setup after your done playing. I know it sounds like a
ball-ache, but if during playtime, just ONE parameter is changed, it could
affect the gyro, much like a single percentage point change in the ATV on
the throttle disables the governors.

Now I KNOW you didn't play with the radio setting for the Logo,
but.............

--
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

Andy Beetz

May 05, 2004, 01:00 PM

<snip>

Does it make a difference to the gyro sensing direction if it is mounted
fore or aft of the main shaft? I ask because I found it strange that I had
to reverse the direction on my ICG360 after taking it out of the Shuttle (it
was on the gyro mount platform in front of the mainshaft) and putting it
into the Sceadu (where it now resides behind the mainshaft).

Thanks
Andy

Nick M V Salmon

May 05, 2004, 01:00 PM

"Andy Beetz" <the_flc@zenREMOVETHIS.co.uk> wrote
> <snip>
>
> Does it make a difference to the gyro sensing direction if it is mounted
> fore or aft of the main shaft? I ask because I found it strange that I had
> to reverse the direction on my ICG360 after taking it out of the Shuttle
(it
> was on the gyro mount platform in front of the mainshaft) and putting it
> into the Sceadu (where it now resides behind the mainshaft).

Nope, as long as it's mounted the same way up...

Ciao...

[UK]_Nick...
--
Nick M V Salmon Master Mariner MN(Retd.)
Email: My four initials at dsl dot pipex dot com
http://www.nmvs.dsl.pipex.com/index.htm

jsk

May 06, 2004, 10:00 PM

Nick M V Salmon wrote:
> "Andy Beetz" <the_flc@zenREMOVETHIS.co.uk> wrote
>
>><snip>
>>
>>Does it make a difference to the gyro sensing direction if it is mounted
>>fore or aft of the main shaft? I ask because I found it strange that I had
>>to reverse the direction on my ICG360 after taking it out of the Shuttle
>
> (it
>
>>was on the gyro mount platform in front of the mainshaft) and putting it
>>into the Sceadu (where it now resides behind the mainshaft).
>
>
> Nope, as long as it's mounted the same way up...
>

And the control linkages are working in the same sense.

Courseyauto

May 06, 2004, 10:00 PM

When you fly fowards it is in front of the mast when you fly backwaeds it is
behind the mast........................

Danny

May 08, 2004, 04:00 AM