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jrlark



Joined: 03 Jul 2009
Posts: 72

PostPosted: Fri Nov 02, 2012 6:39 am    Post subject: aileron trim Reply with quote

Hi all

Question for those who have installed Vans electric aileron trim, is there any reason the servo can not go in the right wing instead of the left?
Thx, Rick

Finish & FWF kits enroute
#40956
Southampton, Ont.


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Kellym



Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

PostPosted: Fri Nov 02, 2012 6:47 am    Post subject: aileron trim Reply with quote

You will have to mirror image the plans........Wink
I don't know of any reason, other than roll servo is usually installed
in right wing, which shouldn't make much difference.
Not visualizing what advantage either wing would have, but have decided
to defer getting aileron trim until have flown for awhile to decide if
the perceived benefit merits the cost and labor.

On 11/2/2012 7:38 AM, Rick Lark wrote:
Quote:
Hi all
Question for those who have installed Vans electric aileron trim, is
there any reason the servo can not go in the right wing instead of the
left?
Thx, Rick
Finish & FWF kits enroute
#40956
Southampton, Ont.
*
*

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PostPosted: Fri Nov 02, 2012 6:51 am    Post subject: aileron trim Reply with quote

Speaking of which, does anybody have a digital copy of the aileron trim installation drawings? I am needing to make some adjustments on one of them and need to know how it is installed.

Thanks and do not archive

Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com (jesse(at)saintaviation.com)
C: 352-427-0285
F: 815-377-3694

On Nov 2, 2012, at 10:38 AM, Rick Lark <jrlark(at)bmts.com (jrlark(at)bmts.com)> wrote:
Quote:
Hi all

Question for those who have installed Vans electric aileron trim, is there any reason the servo can not go in the right wing instead of the left?
Thx, Rick

Finish & FWF kits enroute
#40956
Southampton, Ont.


Quote:


href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List
href="http://forums.matronics.com">http://forums.matronics.com



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Kellym



Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

PostPosted: Fri Nov 02, 2012 6:59 am    Post subject: aileron trim Reply with quote

Sent-offlist
On 11/2/2012 7:50 AM, Jesse Saint wrote:
Quote:
Speaking of which, does anybody have a digital copy of the aileron
trim installation drawings? I am needing to make some adjustments on
one of them and need to know how it is installed.

Thanks and do not archive

Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com <mailto:jesse(at)saintaviation.com>
C: 352-427-0285
F: 815-377-3694

On Nov 2, 2012, at 10:38 AM, Rick Lark <jrlark(at)bmts.com
<mailto:jrlark(at)bmts.com>> wrote:

> Hi all
> Question for those who have installed Vans electric aileron trim, is
> there any reason the servo can not go in the right wing instead of
> the left?
> Thx, Rick
> Finish & FWF kits enroute
> #40956
> Southampton, Ont.
> *
>
> href="http://www.aeroelectric.com">www.aeroelectric.com
> href="http://www.buildersbooks.com">www.buildersbooks.com
> href="http://www.homebuilthelp.com">www.homebuilthelp.com
> href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
> href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List
> href="http://forums.matronics.com">http://forums.matronics.com
>
> *
>

*
*

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jchang10



Joined: 05 Jul 2006
Posts: 227

PostPosted: Fri Nov 02, 2012 6:59 am    Post subject: aileron trim Reply with quote

Just my 2c, i use aileron trim on every flight and consider it
standard equipment. Otherwise, you will have to constantly apply aileron
force (when not on autopilot) to fly wings level as weight varies side
to side.

Jae
do not archive

On 11/2/2012 7:47 AM, Kelly McMullen wrote:
Quote:


You will have to mirror image the plans........Wink
I don't know of any reason, other than roll servo is usually installed
in right wing, which shouldn't make much difference.
Not visualizing what advantage either wing would have, but have
decided to defer getting aileron trim until have flown for awhile to
decide if the perceived benefit merits the cost and labor.

On 11/2/2012 7:38 AM, Rick Lark wrote:
> Hi all
> Question for those who have installed Vans electric aileron trim, is
> there any reason the servo can not go in the right wing instead of
> the left?
> Thx, Rick
> Finish & FWF kits enroute
> #40956
> Southampton, Ont.
> *
> *



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PostPosted: Fri Nov 02, 2012 6:59 am    Post subject: aileron trim Reply with quote

Depending on how often you fly alone and how far, I have used my trim, but
the truth is I don’t see a real benefit to it. I use the fuel on the left
side first and that usually balances out the plane for me, I have a tab on
the rudder, works fine for me. No regrets with not adding a electric rudder
trim. My point, You're are right on Kelly. Wait and see if you need it, just
as I did with the rudder trim.

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Kellym



Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

PostPosted: Fri Nov 02, 2012 7:16 am    Post subject: aileron trim Reply with quote

That is why I am waiting. I have flown my Mooney for 14 years with
similar wing tanks, similar loads with all sorts of fuel imbalance with
same pushrod type controls and didn't feel any need for aileron trim.
Recognize RV-10 maybe different, with shorter wings, but since it can be
installed later, I will wait and see.
Usually mods that we have spent money on turn out to be the best, and
the rest...who knows.Razz

On 11/2/2012 7:58 AM, Jae Chang wrote:
Quote:


Just my 2c, i use aileron trim on every flight and consider it
standard equipment. Otherwise, you will have to constantly apply
aileron force (when not on autopilot) to fly wings level as weight
varies side to side.

Jae
do not archive



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Strasnuts



Joined: 10 Feb 2009
Posts: 502
Location: Salt Lake City, UT

PostPosted: Fri Nov 02, 2012 7:51 am    Post subject: aileron trim Reply with quote

I use mine about every other flight. I would install again if starting
over.

You getting close Kelly? Maybe I'll run down there and see your project
this winter when it's cold in SLC.

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dmaib@me.com



Joined: 25 Apr 2006
Posts: 455
Location: New Smyrna Beach, Florida

PostPosted: Fri Nov 02, 2012 8:04 am    Post subject: Re: aileron trim Reply with quote

I use my aileron trim on a regular basis and would definitely do it again if I was building another -10. This airplane is more sensitive to lateral imbalance than any other light plane I have flown. I definitely would not install rudder trim if I was building again. I rarely use it.

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PostPosted: Fri Nov 02, 2012 8:11 am    Post subject: aileron trim Reply with quote

Kelly

Could you please also send it to me.

TIA
Carlos
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PostPosted: Fri Nov 02, 2012 8:19 am    Post subject: aileron trim Reply with quote

Wow! That is the exact opposite for my plane. I don't use the aileron trim but need rudder trim all the time....

Kevin Belue
RV10
RV6A

Sent from my iPhone

On Nov 2, 2012, at 11:04 AM, "dmaib(at)me.com" <dmaib(at)me.com> wrote:

Quote:


I use my aileron trim on a regular basis and would definitely do it again if I was building another -10. This airplane is more sensitive to lateral imbalance than any other light plane I have flown. I definitely would not install rudder trim if I was building again. I rarely use it.

--------
David Maib
RV-10 #40559
Transition Trainer
New Smyrna Beach, FL




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robin(at)PaintTheWeb.com
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PostPosted: Fri Nov 02, 2012 8:35 am    Post subject: aileron trim Reply with quote

I love my rudder trim and use it all the time. I did the same to the 8A and once out of paint the rudder trim was inop and I miss it a lot. I will track down the 8A issue shortly and get back to coordinated flight with my feet on the floor.
http://painttheweb.com/painttheweb/rv-10/RudderTrim.aspx
Keep in mind you are building a superior cross country machine which means long flights. If you only have one ball you might as well center it. Smile

Robin

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PostPosted: Fri Nov 02, 2012 8:59 am    Post subject: aileron trim Reply with quote

I use both rudder and aileron trim when hand flying and rudder trim when on
AP. If I was building another 10 I would definitely put both in. The
aileron trim is much more important when solo.....

Rene' Felker
N423CF
801-721-6080

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Kellym



Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

PostPosted: Fri Nov 02, 2012 2:25 pm    Post subject: aileron trim Reply with quote

I sent, but email bounced. Maybe if you send me a private email direct
I can reply to that and attach.

On 11/2/2012 9:12 AM, Carlos Trigo wrote:
[quote]

Kelly

Could you please also send it to me.

TIA
Carlos
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bill.peyton



Joined: 19 Sep 2010
Posts: 198
Location: St. Louis, MO

PostPosted: Sat Nov 03, 2012 4:11 am    Post subject: Re: aileron trim Reply with quote

I use my aileron trim every time I fly. I can't believe how sensitive this airframe is to fuel imbalance and passenger load. I like the option of having my Aerosport rudder trim, but I set it a while back and it hasn't moved in a while.

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PostPosted: Sat Nov 03, 2012 6:14 am    Post subject: aileron trim Reply with quote

Hi Kelly.
Just to put a finer point on it from someone who has just a little time
in a Mooney and 200+ in the '10. The difference is in the relative
'stiffness' of the aileron control.

As I recall, the Mooney has enough system stiffness that it tends to
blank out small roll trim requirements. It's mainly a matter of
managing the tanks to keep the trim close. The wings tend to stay where
you put them which is a very nice thing.

The RV10's control system is tight and light, but not stiff at all. A
small imbalance is easy to overcome but will require constant pressure
and/or attention. No big deal but no hands off at all if out of trim a
little bit.

All this applies to hand flying only. I find myself doing very little
hand flying these days except for airport ops. And frankly, I rarely
touch the roll trim if I'm actively maneuvering the plane. It's not
really needed in that context. It's just hand flying while smooth air
cruising where trim is desired. So if you cruise with the AP and manage
the tanks properly, you really won't miss the roll trim at all.

There may be a difference between yoke flying versus the stick. My old
Maule was always out of roll trim but without an AP, my hand was always
on the yoke and it was easy to hold in the required roll trim. I find
the stick less comfortable in the same situation. I actually miss my
old yoke (shields up!)

Good Luck
Bill Watson - Durham NC

On 11/2/2012 11:15 AM, Kelly McMullen wrote:
Quote:


That is why I am waiting. I have flown my Mooney for 14 years with
similar wing tanks, similar loads with all sorts of fuel imbalance
with same pushrod type controls and didn't feel any need for aileron
trim. Recognize RV-10 maybe different, with shorter wings, but since
it can be installed later, I will wait and see.
Usually mods that we have spent money on turn out to be the best, and
the rest...who knows.Razz

On 11/2/2012 7:58 AM, Jae Chang wrote:
>
>
> Just my 2c, i use aileron trim on every flight and consider it
> standard equipment. Otherwise, you will have to constantly apply
> aileron force (when not on autopilot) to fly wings level as weight
> varies side to side.
>
> Jae
> do not archive
>
-----
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Checked by AVG - www.avg.com

-----
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Checked by AVG - www.avg.com


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partner14



Joined: 12 Jan 2008
Posts: 540
Location: Granbury Texas

PostPosted: Sat Nov 03, 2012 6:59 am    Post subject: aileron trim Reply with quote

Does anyone out there still believe in the KISS principal? Like Bill, most of my distance flying is by autopilot, and if you monitor the tanks properly, it's really a non-issue. Haven't found the need for either rudder or aileron trim. Less weight, less $, less work, and maybe most important, less that can go wrong.
My 1 cents worth.
Don McDonald
450 hours and counting.

From: Bill Watson <Mauledriver(at)nc.rr.com>
To: rv10-list(at)matronics.com
Sent: Saturday, November 3, 2012 9:13 AM
Subject: Re: aileron trim


--> RV10-List message posted by: Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)>

Hi Kelly.
Just to put a finer point on it from someone who has just a little time in a Mooney and 200+ in the '10. The difference is in the relative 'stiffness' of the aileron control.

As I recall, the Mooney has enough system stiffness that it tends to blank out small roll trim requirements. It's mainly a matter of managing the tanks to keep the trim close. The wings tend to stay where you put them which is a very nice thing.

The RV10's control system is tight and light, but not stiff at all. A small imbalance is easy to overcome but will require constant pressure and/or attention. No big deal but no hands off at all if out of trim a little bit.

All this applies to hand flying only. I find myself doing very little hand flying these days except for airport ops. And frankly, I rarely touch the roll trim if I'm actively maneuvering the plane. It's not really needed in that context. It's just hand flying while smooth air cruising where trim is desired. So if you cruise with the AP and manage the tanks properly, you really won't miss the roll trim at all.

There may be a difference between yoke flying versus the stick. My old Maule was always out of roll trim but without an AP, my hand was always on the yoke and it was easy to hold in the required roll trim. I find the stick less comfortable in the same situation. I actually miss my old yoke (shields up!)

Good Luck
Bill Watson - Durham NC

On 11/2/2012 11:15 AM, Kelly McMullen wrote:
Quote:
--> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>

That is why I am waiting. I have flown my Mooney for 14 years with similar wing tanks, similar loads with all sorts of fuel imbalance with same pushrod type controls and didn't feel any need for aileron trim. Recognize RV-10 maybe different, with shorter wings, but since it can be installed later, I will wait and see.
Usually mods that we have spent money on turn out to be the best, and the rest...who knows.Razz

On 11/2/2012 7:58 AM, Jae Chang wrote:
> --> RV10-List message posted by: Jae Chang <jc-matronics_rv10(at)jline.com (jc-matronics_rv10(at)jline.com)>
>
> Just my 2c, i use aileron trim on every flight and consider it standard equipment. Otherwise, you will have to constantly apply aileron force (when not on autopilot) to fly wings level as weight varies side to side.
>
> Jae
> do not archive
>


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-----
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ht===============




[quote][b]


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PostPosted: Sat Nov 03, 2012 10:10 am    Post subject: aileron trim Reply with quote

All good points.I'm one of those who believes in trim, trim, trim. Trimmed hands off is the most efficient your airplane will fly. It is also the 'state' your airplane should be in when the auto pilot is engaged. Even flying the MD-11 I trimmed to hands off before engaging the A/P and would occasionally click off the A/P enroute just to insure the control pressures were neutral. Finally, trim can be a backup flight control system. Years ago I instructed in T-34Bs (1,000+ hrs). One demo I gave was a complete circuit in the landing pattern using only trim. Trim is your friend!
Cheers,
Jim
do not archive
Quote:
On Nov 3, 2012, at 9:59 AM, Don McDonald <building_partner(at)yahoo.com (building_partner(at)yahoo.com)> wrote:
Quote:
Does anyone out there still believe in the KISS principal? Like Bill, most of my distance flying is by autopilot, and if you monitor the tanks properly, it's really a non-issue. Haven't found the need for either rudder or aileron trim. Less weight, less $, less work, and maybe most important, less that can go wrong.
My 1 cents worth.
Don McDonald
450 hours and counting.

From: Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)>
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Sent: Saturday, November 3, 2012 9:13 AM
Subject: Re: aileron trim


--> RV10-List message posted by: Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)>

Hi Kelly.
Just to put a finer point on it from someone who has just a little time in a Mooney and 200+ in the '10. The difference is in the relative 'stiffness' of the aileron control.

As I recall, the Mooney has enough system stiffness that it tends to blank out small roll trim requirements. It's mainly a matter of managing the tanks to keep the trim close. The wings tend to stay where you put them which is a very nice thing.

The RV10's control system is tight and light, but not stiff at all. A small imbalance is easy to overcome but will require constant pressure and/or attention. No big deal but no hands off at all if out of trim a little bit.

All this applies to hand flying only. I find myself doing very little hand flying these days except for airport ops. And frankly, I rarely touch the roll trim if I'm actively maneuvering the plane. It's not really needed in that context. It's just hand flying while smooth air cruising where trim is desired. So if you cruise with the AP and manage the tanks properly, you really won't miss the roll trim at all.

There may be a difference between yoke flying versus the stick. My old Maule was always out of roll trim but without an AP, my hand was always on the yoke and it was easy to hold in the required roll trim. I find the stick less comfortable in the same situation. I actually miss my old yoke (shields up!)

Good Luck
Bill Watson - Durham NC

On 11/2/2012 11:15 AM, Kelly McMullen wrote:
Quote:
--> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>

That is why I am waiting. I have flown my Mooney for 14 years with similar wing tanks, similar loads with all sorts of fuel imbalance with same pushrod type controls and didn't feel any need for aileron trim. Recognize RV-10 maybe different, with shorter wings, but since it can be installed later, I will wait and see.
Usually mods that we have spent money on turn out to be the best, and the rest...who knows.Razz

On 11/2/2012 7:58 AM, Jae Chang wrote:
> --> RV10-List message posted by: Jae Chang <jc-matronics_rv10(at)jline.com (jc-matronics_rv10(at)jline.com)>
>
> Just my 2c, i use aileron trim on every flight and consider it standard equipment. Otherwise, you will have to constantly apply aileron force (when not on autopilot) to fly wings level as weight varies side to side.
>
> Jae
> do not archive
>


-----
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[/url]ht===============


[url=http://www.buildersbooks.com/%20%20*%20HomebuiltHELP%20%3Ca%20href=]

[url=http://www.buildersbooks.com/%20%20*%20HomebuiltHELP%20%3Ca%20href=] [/url]
[url=http://www.buildersbooks.com/%20%20*%20HomebuiltHELP%20%3Ca%20href=] [/url]
Quote:


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PostPosted: Sat Nov 03, 2012 10:37 am    Post subject: aileron trim Reply with quote

Funny you should mention the complete circuit using trim. Years ago when trying to learn to land a C150 at age 16, the instructor flew the pattern with trim-only. Pitch trim that is, and rudder and power of course. It showed me how unnnecessary my death grip on the yoke was.

Anyway, does that mean that the MD-11 A/P didn't operate the trim when engaged? Or was it just a good habit that shouldn't be broken?

Bill "still thinks his TruTrak AP is a magical gift from the gods" Watson

On 11/3/2012 2:10 PM, James Dearborn wrote:

[quote] All good points. I'm one of those who believes in trim, trim, trim. Trimmed hands off is the most efficient your airplane will fly. It is also the 'state' your airplane should be in when the auto pilot is engaged. Even flying the MD-11 I trimmed to hands off before engaging the A/P and would occasionally click off the A/P enroute just to insure the control pressures were neutral. Finally, trim can be a backup flight control system. Years ago I instructed in T-34Bs (1,000+ hrs). One demo I gave was a complete circuit in the landing pattern using only trim. Trim is your friend!
Cheers,
Jim


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[b]


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PostPosted: Sat Nov 03, 2012 11:36 am    Post subject: aileron trim Reply with quote

Hi Bill,
The pitch trim on the 'Dog' is very good and works on the A/P. Roll and yaw trim are manual. The system trims by taking out control pressure to within a certain value. This will allow 'some' amount of control pressure to build up before the actuator moves to neutralize the elevator control pressure. One can engage the autopilot when not 'in trim' and the system will trim for you. If the elevator is too far out of neutral pressure the A/P would not engage. The A/P will also disengage if an excessive control pressure can not be trimmed out and the accumulated pressure exceeds a certain value.
Another factor that needs to be considered is what happens if the A/P fails or the A/P is simply disengaged when an out of trim condition is present. Generally an abrupt control input is the result. This is undesirable, particularly at Mins.
I'm new to small airplane autopilots and their capabilities, but I'm eager to learn. The avionics for the homebuilt industry is amazing. That being said, it seems that using the aileron control servos to "trim" for you will cause an unbalanced flight condition. . . maybe a yaw damper would help. Unbalanced flight is less efficient, hence more fuel burn.
I think it is a good habit to always be in trim. I've been fortunate to be flying for fifty years and believe in stacking the deck in my favor when I can.
Final caution, "George", the A/P, is a great tool, but don't let him become a crutch.
Cheers,
Jim
do not archive

On Nov 3, 2012, at 1:36 PM, Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)> wrote:
Quote:
Funny you should mention the complete circuit using trim. Years ago when trying to learn to land a C150 at age 16, the instructor flew the pattern with trim-only. Pitch trim that is, and rudder and power of course. It showed me how unnnecessary my death grip on the yoke was.

Anyway, does that mean that the MD-11 A/P didn't operate the trim when engaged? Or was it just a good habit that shouldn't be broken?

Bill "still thinks his TruTrak AP is a magical gift from the gods" Watson

On 11/3/2012 2:10 PM, James Dearborn wrote:

Quote:
All good points. I'm one of those who believes in trim, trim, trim. Trimmed hands off is the most efficient your airplane will fly. It is also the 'state' your airplane should be in when the auto pilot is engaged. Even flying the MD-11 I trimmed to hands off before engaging the A/P and would occasionally click off the A/P enroute just to insure the control pressures were neutral. Finally, trim can be a backup flight control system. Years ago I instructed in T-34Bs (1,000+ hrs). One demo I gave was a complete circuit in the landing pattern using only trim. Trim is your friend!
Cheers,
Jim


do not archive



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