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philperry9
Joined: 23 Nov 2011
Posts: 381
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 Posted: Sun Aug 03, 2014 5:52 pm Post subject: GMU 44 (Magnetometer) - Mounting |
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I've seen a handful of folks mounting the GMU 44 in various places such as inside the tailcone, in the lightening holes on the aft tailcone cover, and even in wingtips.
I was thinking of installing it in the left wing, but the pitot heat could cause trouble with that much current being in the vicinity. .
So I thought about the right wing tip, but the TruTrak AP servo is in that one and I just found that the manual suggest 10ft separation from the servo motor.
So, now I'm kinda stuck. Where is everyone putting them and what results are you seeing? Photo's would be helpful too.
Thanks,
Phil
[quote][b]
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rv10(at)texasrv10.com
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| Posted: Sun Aug 03, 2014 6:18 pm Post subject: GMU 44 (Magnetometer) - Mounting |
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Mine is in the wing tip about 4-5' from the pitot heat. It passes the EMI test just fine.
Biggest issue I came across was EMI from the wing tip landing light causing interference. Changed two twisted shielded pair for power wires to the lights. No issue anymore.
(I need to return your control sticks someday soon)
Gaylon Koenning
On Aug 3, 2014, at 8:51 PM, Phillip Perry <philperry9(at)gmail.com (philperry9(at)gmail.com)> wrote:
[quote]I've seen a handful of folks mounting the GMU 44 in various places such as inside the tailcone, in the lightening holes on the aft tailcone cover, and even in wingtips.
I was thinking of installing it in the left wing, but the pitot heat could cause trouble with that much current being in the vicinity. .
So I thought about the right wing tip, but the TruTrak AP servo is in that one and I just found that the manual suggest 10ft separation from the servo motor.
So, now I'm kinda stuck. Where is everyone putting them and what results are you seeing? Photo's would be helpful too.
Thanks,
Phil
| Quote: |
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
List"">http://www.matronics.com/Navigator?RV10-List
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
//forums.matronics.com
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ot;">http://www.matronics.com/contribution
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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[b]
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bill.peyton
Joined: 19 Sep 2010
Posts: 198
Location: St. Louis, MO
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| Posted: Sun Aug 03, 2014 6:25 pm Post subject: Re: GMU 44 (Magnetometer) - Mounting |
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Mine is mounted to the bulkhead behind the battery mount. Sorry, but I do not have access to the manual. It's on a shelf at the top of the bulkhead. I believe that's where most are mounting it.
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saylor.dave(at)gmail.com
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| Posted: Sun Aug 03, 2014 7:06 pm Post subject: GMU 44 (Magnetometer) - Mounting |
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We did a wingtip installation on an -8. As above, it required a twisted shielded pair for the landing lights but otherwise no issues.
--Dave
On Sun, Aug 3, 2014 at 7:17 PM, RV10 <rv10(at)texasrv10.com (rv10(at)texasrv10.com)> wrote:
[quote] Mine is in the wing tip about 4-5' from the pitot heat. It passes the EMI test just fine.
Biggest issue I came across was EMI from the wing tip landing light causing interference. Changed two twisted shielded pair for power wires to the lights. No issue anymore.
(I need to return your control sticks someday soon)
Gaylon Koenning
On Aug 3, 2014, at 8:51 PM, Phillip Perry <philperry9(at)gmail.com (philperry9(at)gmail.com)> wrote:
| Quote: | I've seen a handful of folks mounting the GMU 44 in various places such as inside the tailcone, in the lightening holes on the aft tailcone cover, and even in wingtips.
I was thinking of installing it in the left wing, but the pitot heat could cause trouble with that much current being in the vicinity. .
So I thought about the right wing tip, but the TruTrak AP servo is in that one and I just found that the manual suggest 10ft separation from the servo motor.
So, now I'm kinda stuck. Where is everyone putting them and what results are you seeing? Photo's would be helpful too.
Thanks,
Phil
| Quote: |
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
List"">http://www.matronics.com/Navigator?RV10-List
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
//forums.matronics.com
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ot;">http://www.matronics.com/contribution
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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| Quote: |
get="_blank">http://www.matronics.com/Navigator?RV10-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
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[b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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tfarrell839
Joined: 10 Nov 2012
Posts: 27
Location: Watsonville, CA
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| Posted: Sun Aug 03, 2014 8:03 pm Post subject: GMU 44 (Magnetometer) - Mounting |
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One thing to avoid is any coiling in the wires near the magnetometer. The 8 Dave refers to failed the EMI test miserably the first time with the wing tip lights on. We pulled the wing tip and found a coil in the shielded twisted pair. We made some adjustments and got rid of the coil, no problems.
Tim
Sent from my iPhone
On Aug 3, 2014, at 8:05 PM, David Saylor <saylor.dave(at)gmail.com (saylor.dave(at)gmail.com)> wrote:
[quote]We did a wingtip installation on an -8. As above, it required a twisted shielded pair for the landing lights but otherwise no issues.
--Dave
On Sun, Aug 3, 2014 at 7:17 PM, RV10 <rv10(at)texasrv10.com (rv10(at)texasrv10.com)> wrote:
| Quote: | Mine is in the wing tip about 4-5' from the pitot heat. It passes the EMI test just fine.
Biggest issue I came across was EMI from the wing tip landing light causing interference. Changed two twisted shielded pair for power wires to the lights. No issue anymore.
(I need to return your control sticks someday soon)
Gaylon Koenning
On Aug 3, 2014, at 8:51 PM, Phillip Perry <philperry9(at)gmail.com (philperry9(at)gmail.com)> wrote:
| Quote: | I've seen a handful of folks mounting the GMU 44 in various places such as inside the tailcone, in the lightening holes on the aft tailcone cover, and even in wingtips.
I was thinking of installing it in the left wing, but the pitot heat could cause trouble with that much current being in the vicinity. .
So I thought about the right wing tip, but the TruTrak AP servo is in that one and I just found that the manual suggest 10ft separation from the servo motor.
So, now I'm kinda stuck. Where is everyone putting them and what results are you seeing? Photo's would be helpful too.
Thanks,
Phil
| Quote: |
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
List"">http://www.matronics.com/Navigator?RV10-List
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
//forums.matronics.com
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ot;">http://www.matronics.com/contribution
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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[b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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Tim Farrell
Aircrafters
831-722-9141 |
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