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occom
Joined: 26 Aug 2006
Posts: 404
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 Posted: Sun Nov 15, 2009 6:46 am Post subject: Metal panels under stab |
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Mine look for all the world like the original method of fastening was using very course sheet metal screws in the tabs in the (poor) cellphone photo. Is this what everyone uses? It seems to me they'll fall out and end up in another aircraft's tire.
[img]cid:F65CD50569144E3CB801357E40331C31(at)dave[/img]
Dave Goddard
KF IV 1050 / 582 / Warp
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lcfitt(at)sbcglobal.net
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| Posted: Sun Nov 15, 2009 7:57 am Post subject: Metal panels under stab |
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Dave,
That is what I used on my model IV. I used screws about 3/4" long and once
in a while they would back out a thread or two, but I never lost one in 900
hours. After getting tired of tighening them from time to time, I used some
medium thread locker on the screws. No problems then.
Lowell
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Tom Jones
Joined: 12 Mar 2006
Posts: 752
Location: Ellensburg, WA
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| Posted: Sun Nov 15, 2009 8:04 am Post subject: Re: Metal panels under stab |
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| Quote: | Mine look for all the world like the original method of fastening was using very course sheet metal screws in the tabs in the (poor) cellphone photo. Is this what everyone uses? It seems to me they'll fall out and end up in another aircraft's tire.
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Dave, yes that is the original installation method. The tabs are so hardened from the welding that even the stainless sheet metal screws strip out. I kept finding a few loose screws on each preflight so I switched to J-nuts with machine screws.
Here's an example.
http://www.aircraftspruce.com/catalog/hapages/04-00152.php
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_________________
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA |
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brianm(at)snolab.ca
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| Posted: Sun Nov 15, 2009 9:49 am Post subject: Metal panels under stab |
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Hi
I drilled and taped all mine to 8-32 machine screws which seems to work
fine.
Brian
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Ken Potter
Joined: 18 Aug 2007
Posts: 85
Location: Lanark, Ontario
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| Posted: Sun Nov 15, 2009 3:40 pm Post subject: Re: Metal panels under stab |
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I also drilled and tapped mine with stainless 8-32s. Seemed logical at the time.
Cheers
Ken
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Ken Potter
Model II, No. 483
Rotax 582, C-Box,
99% Complete
C-FJKP
Lanark, Ontario |
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n981ms(at)yahoo.com
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| Posted: Mon Nov 16, 2009 5:02 am Post subject: Metal panels under stab |
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Knock on wood but I have not lost one in 500 hours. That is not to say that I don't have a screw loose.
Maxwell Duke
S6/TD/IO240
Dublin, GA
--- On Sun, 11/15/09, Lowell Fitt <lcfitt(at)sbcglobal.net> wrote:
[quote]
From: Lowell Fitt <lcfitt(at)sbcglobal.net>
Subject: Re: Metal panels under stab
To: kitfox-list(at)matronics.com
Date: Sunday, November 15, 2009, 10:52 AM
--> Kitfox-List message posted by: "Lowell Fitt" <lcfitt(at)sbcglobal.net (lcfitt(at)sbcglobal.net)>
Dave,
That is what I used on my model IV. I used screws about 3/4" long and once in a while they would back out a thread or two, but I never lost one in 900 hours. After getting tired of tighening them from time to time, I used some medium thread locker on the screws. No problems then.
Lowell
---
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akflyer
Joined: 07 May 2007
Posts: 574
Location: Soldotna AK
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| Posted: Mon Nov 16, 2009 8:10 am Post subject: Re: Metal panels under stab |
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Stainless Steel is softer than Carbon Steel until you get into some of the exotic, or duplex alloys.
FWIW, the 2 kitfoxes I have worked on just had SS sheet metal screws and they have never come loose.
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_________________
DO NOT ARCHIVE
Leonard Perry aka SNAKE
Soldotna AK
Avid "C" / Mk IV
582 (147 hrs and counting on the rebuild)
IVO IFA
Full Lotus 1450
#1 snake oil salesman since 1-22-2009
I would rather die trying to live, than to live trying not to die.... |
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occom
Joined: 26 Aug 2006
Posts: 404
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| Posted: Mon Nov 16, 2009 8:56 am Post subject: Metal panels under stab |
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Ok Thanks. I will re-apply the original stainless sheet metal screws with a
threadlock compound. I was not concerned for the panels, just for the
tires/safety of others. Sheet metal screws love tires.
---
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