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05-02-2012, 10:50 AM
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Join Date: May 2010
Location: Spring Hill Fl
Posts: 734
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ADAHRS Mounting
Is there a photo of the mounted ADAHRS on any ones web site
Can I add nutplates to the Brackets before riveting them to the tailcone.
Thanks
Last edited by joedallas : 05-02-2012 at 01:54 PM.
Reason: Typing
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05-03-2012, 09:42 AM
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Join Date: Apr 2010
Location: Tucson, AZ
Posts: 461
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Yes, you can. The flange is a bit narrow, so you might bend it a bit, but not too bad and you can bend it back. I had originally installed the brackets without doing anything to them and then later realized how awkward it would be to install the ADAHRS in the back, fiddling with the unit, the screws and those metal lock nuts. Yesterday, I drilled it out and installed nutplates K1000-06 and put the brackets back in.
The only photo I have is from the original installation, not sure if that helps you.
The link to the full post is here (including a link to a larger image). Picture is on the bottom of the post.
Last edited by MacPara : 05-03-2012 at 09:46 AM.
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05-03-2012, 10:41 AM
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Join Date: Mar 2011
Location: Bosschenhoofd, Netherlands
Posts: 152
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Dynon says to use non magnetic fasteners which may have effect on the compass. I used stainless steel bolts
__________________
Jack Netherlands
PH-SEP and PH-SES
RV12 #120519 and #120790
Hobbs 700+ hours and 400+ hours
Dual SV1000 Skyview 15, Pocket FMS and Powerflarm 6.0 (ADSB)
RV10 PH-USN Hobbs 350 hours
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05-03-2012, 10:53 AM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
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Quote:
Originally Posted by Hotscam
Dynon says to use non magnetic fasteners which may have effect on the compass. I used stainless steel bolts
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Definition of "experimental kit airplane builder"
A guy who comes up with a better way to do things and then later on finds out that there was a very good reason the plans/manual said to do it a different way.
Just kidding... but any time you deviate from the plans, I suggest you do a bunch of research to see if there might just be a specific reason it was done a specific way.
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05-03-2012, 11:47 AM
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Join Date: May 2010
Location: Spring Hill Fl
Posts: 734
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ADAHRS
Thanks MacPara
I think I will cut a piece of stainless steel to the size of the bottom of the C brackets and tap the holes in the stainless to the bolt size needed and double face tape them in place.
Quote:
Originally Posted by MacPara
Yes, you can. The flange is a bit narrow, so you might bend it a bit, but not too bad and you can bend it back. I had originally installed the brackets without doing anything to them and then later realized how awkward it would be to install the ADAHRS in the back, fiddling with the unit, the screws and those metal lock nuts. Yesterday, I drilled it out and installed nutplates K1000-06 and put the brackets back in.
The only photo I have is from the original installation, not sure if that helps you.
The link to the full post is here (including a link to a larger image). Picture is on the bottom of the post.
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05-03-2012, 12:01 PM
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Join Date: Oct 2010
Location: La Feria Texas
Posts: 3,822
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Not all stainless is "non magnetic" you must realize.
Now you got me worried about putting those big ol magnetic steel nutplates up there like that! I know others have had some real problems with the unit from magnetic steel located nearby. Think I will stick to the plans on this, and confine my experimenting to other areas.
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05-03-2012, 01:09 PM
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Join Date: Apr 2010
Location: Tucson, AZ
Posts: 461
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Didn't think about the magnetometer in there. Another option would be to install the ADAHRS before riveting those brackets in. Plug up the threaded holes until the hoses get connected later.
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05-03-2012, 03:02 PM
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Join Date: Aug 2010
Location: Marshall TX (KASL)
Posts: 1,783
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You will have to do THIS anyway to connect the tubing...
I found it easy to just apply the hardware in the plans.
And you will have to "assume the position" again if you ever need to remove it. Or maybe you can find a skinny kid that can get through the split bulkhead (see Modifications sticky) so you will not have to remove the tank...
The board was resting on foam padding.
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05-03-2012, 04:28 PM
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Join Date: Mar 2009
Location: Austin, Texas
Posts: 306
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non-magnetic fasteners and bracket installation
1) Curiously, I believe the provided mounting screws are (blackened) brass screws. but the associated nuts are still magnetic. A trial run through of the screws onto the nuts caused to of the four brass screws to shear off--soft little buggers--and had to replace them... I don't know why they didn't just specify the non-magnetic stainless screws we use all over the place.
2) If you live in dread fear of bolting these on whilst on your back in the tailcone, then bolt them onto the brackets before riveting the brackets to the tailcone.
__________________
Rob Reese
RV-12 #120332 N73HR
Austin, TX
TangoFlight Mentor
Last edited by engineerofsorts : 05-03-2012 at 04:30 PM.
Reason: typos
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05-03-2012, 08:06 PM
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Join Date: Oct 2010
Location: La Feria Texas
Posts: 3,822
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I suppose the question to be asked is why not use brass nuts? Suppose the steel nuts is a mistake in the plans?
I just might go get some brass nuts and solve the question.
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