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Remote Compass Mounting Location for Dynon Unit

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CDE2fly(at)aol.com
Guest

Posted: Wed Dec 17, 2008 6:39 pm Post subject: Remote Compass Mounting Location for Dynon Unit

I'm nearing the completion of my Model 7 and noticed that the Dynon D100  compass indication is not correct (i.e., indicates west when the aircraft is  pointed south).  The remote compass module is currently mounded behind  the pilot seat adjacent to the baggage compartment in the same vertical plane as  the D100 unit in the instrument panel.  I've confirmed with a hand  held compass that there is a magnetic field in the area the Dynon remote  compass is currently mounted and that there is a magnetic filed in the  vicinity of most structural tubing in the fuselage.  My questions are as  follows:

  

 1.  Is there a location within the Kitfox fuse that Dynon users have  found minimal magnetic interference?

  

 2. Is there a way to reduce/eliminate magnetic interference in the vicinity  of the remote compass's current location (perhaps ground/bond) the  structural tubing in this area? 

  

 Thanks for the help!

   



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dan(at)azshowersolutions.
Guest

Posted: Wed Dec 17, 2008 7:21 pm Post subject: Remote Compass Mounting Location for Dynon Unit

Interesting that you bring up this problem as I will be installing a magnetometer in my baggage area soon. I assume you first have your magnetometer installed as per Dynon's instructions (most of them have a front that should correlate or face the same direction as the EFIS...not sure about the Dynon though). If you are good there, then you might want to look into degaussing the affected area. You can buy or build a degausser...just do a search and you will find a bunch of info.

Hope that helps

Dan B

--- On Wed, 12/17/08, CDE2fly(at)aol.com <CDE2fly(at)aol.com> wrote:



 	  Quote: 	
		   From: CDE2fly(at)aol.com <CDE2fly(at)aol.com>

 Subject: Remote Compass Mounting Location for Dynon Unit

 To: kitfox-list(at)matronics.com

 Date: Wednesday, December 17, 2008, 7:39 PM

 I'm nearing the completion of my Model 7 and noticed

 that the Dynon D100  

 compass indication is not correct (i.e., indicates west

 when the aircraft is  

 pointed south).  The remote compass module is currently

 mounded behind  the pilot 

 seat adjacent to the baggage compartment in the same

 vertical plane as  the 

 D100 unit in the instrument panel.  I've confirmed with

 a hand  held compass 

 that there is a magnetic field in the area the Dynon remote

  compass is 

 currently mounted and that there is a magnetic filed in the

  vicinity of most 

 structural tubing in the fuselage.  My questions are as 

 follows:

  

 1.  Is there a location within the Kitfox fuse that Dynon

 users have  found 

 minimal magnetic interference?

  

 2. Is there a way to reduce/eliminate magnetic interference

 in the vicinity  

 of the remote compass's current location (perhaps

 ground/bond) the  structural 

 tubing in this area? 

  

 Thanks for the help!

   

 **************One site keeps you connected to all your

 email: AOL Mail, 

 Gmail, and Yahoo Mail. Try it now.

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MichaelGibbs(at)cox.net
Guest

Posted: Wed Dec 17, 2008 9:38 pm Post subject: Remote Compass Mounting Location for Dynon Unit

CDE2fly(at)aol.com sez:



 	  Quote: 	
		  I'm nearing the completion of my Model 7 and noticed that the Dynon 

D100 compass indication is not correct (i.e., indicates west when 

the aircraft is pointed south).

The remote compass module is currently mounded behind the pilot seat 

adjacent to the baggage compartment in the same vertical plane as 

the D100 unit in the instrument panel.


	


As others have suggested, it's certainly possible to degauss the 

tubing back there, but I think you'll have far better results if you 

mount the remote compass in a wing tip.  Even if your wings are 

finished, it's pretty simple to snake the wires down the rear spar to 

the wing tip and mount the compass on the end rib.  Out there you'll 

have no steel anywhere near the compass unit and it will have good 

geometry with the panel unit.  Make sure you align it with the panel 

unit properly per the Dynon instructions.



Mike G.

N728KF, Kitfox IV-1200 Speedster

Phoenix, AZ

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Fox5flyer
Guest

Posted: Thu Dec 18, 2008 5:16 am Post subject: Remote Compass Mounting Location for Dynon Unit

Probably in the wing is the only place where you won't find magnetic  metals, but that probably isn't a good place.  There is probably nobody  better to help you with this problem than the people at Dynon.  I'm sure  this is something they deal with on nearly every unit they sell to the  public.  They will know every trick there is to get it swinging in the  right direction.

 Also, if you wouldn't mind, please end your message with your name, type  ac, and location.  It helps us a lot to know who we're talking to.

 Deke Morisse

Mikado Michigan

S5/Subaru/CAP 402+ TT

"The aim of an  argument or discussion should not be victory, but progress."

- Joseph  Joubert

  

 

 

 [quote]   ---

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MichaelGibbs(at)cox.net
Guest

Posted: Thu Dec 18, 2008 6:28 am Post subject: Remote Compass Mounting Location for Dynon Unit

Deke sez:



 	  Quote: 	
		  Probably in the wing is the only place where you won't find magnetic 

metals, but that probably isn't a good place.


	


Why do you say that, Deke?



Mike G.

N728KF, Kitfox IV-1200 Speedster

Phoenix, AZ

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dan(at)azshowersolutions.
Guest

Posted: Thu Dec 18, 2008 2:34 pm Post subject: Remote Compass Mounting Location for Dynon Unit

Joseph,

I just got word from the mother ship that the wing is the place to put the magnetometers. As Mike said...rear spar to stay away from other wires. Glad this came up now as I was looking around the baggage area to place it myself. 

Dan B  KF-IV  Painting

Mesa

--- On Thu, 12/18/08, fox5flyer <fox5flyer(at)idealwifi.net> wrote:



[quote] From: fox5flyer <fox5flyer(at)idealwifi.net>

 Subject: Re: Remote Compass Mounting Location for Dynon Unit

 To: kitfox-list(at)matronics.com

 Date: Thursday, December 18, 2008, 6:13 AM

 Probably in the wing is the only place where you won't

 find magnetic metals, but that probably isn't a good

 place.  There is probably nobody better to help you with

 this problem than the people at Dynon.  I'm sure this is

 something they deal with on nearly every unit they sell to

 the public.  They will know every trick there is to get it

 swinging in the right direction.

 Also, if you wouldn't mind, please end your message

 with your name, type ac, and location.  It helps us a lot to

 know who we're talking to.

 Deke Morisse

 Mikado Michigan

 S5/Subaru/CAP 402+ TT

 "The aim of an argument or discussion should not be

 victory, but progress."

 - Joseph Joubert

 

 

 

   ---

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darinh

Joined: 20 Apr 2006
Posts: 327
Location: Utah

Posted: Thu Dec 18, 2008 2:53 pm Post subject: Re: Remote Compass Mounting Location for Dynon Unit

Joseph,



I have the D100 and mounted my magnotometer in the wingtip and it is right on.  The magnotometer lead (Prefab unit from Steinair.com) is not long enought for the Kitfox wing so I had to purchase some shielded 4 conductor (it may have been 3-conductor, I can't remember) to extend the lead.  Works perfectly.  I fabbed a mount using aluminum and mounted it about mid point between the LE and TE.  I think having it in the fuse will be problematic.  I know of a bearhawk owner that mounted his in the fuse and tried just about everything to get a correct reading but ended up moving it to the wing.  Under the wingtip it is easy to get at by removing the fiberglass tip.

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_________________
Darin Hawkes
Series 7
914 Turbo
Kaysville, Utah

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