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jacques.voynaud(at)cegepa
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 Posted: Wed Aug 29, 2007 5:01 am Post subject: Re : Leading Edge Spar Retaining Pin |
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I bought the plane with drilled bolts and nyloc nuts plus safety pins instead of the clevis pins E I hope this is not wrong E
Jacques Voynaud
Conseiller en formation
Cegep de l'Abitibi-Témiscamingue
Centre de Ville-Marie (819)629-3211
jacques Evoynaud(at)cegepat Eqc Eca ([email]jacques Evoynaud(at)cegepat Eqc Eca[/email])
[quote][b]
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akanka(at)kiamichiwb.org
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| Posted: Wed Aug 29, 2007 5:42 am Post subject: Re : Leading Edge Spar Retaining Pin |
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It's OK, as far as I know. There's not any difference in the metallurgy of AN clevis pins and and AN bolts. The only thing I have concerns about is that if the bolts are frequently removed and re-installed, the threads of the bolt threads may remove metal from the spar holes and/or the inside if the tubes welded to the carry through structure, similar to the results of a round file. That could result in elongated holes. If the bolts are not removed very often, only minimal scraping of the threads against the holes should not cause a great concern, in my opinion. Canada may have different requirements than the US. I am not familiar with Canada's aviation maintenance regulations and procedures.
John Hart
Kitfox Model IV
Mechanic - Airframe and Poweplant
[quote] --
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msm_9949(at)yahoo.com
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| Posted: Wed Aug 29, 2007 10:15 am Post subject: Re : Leading Edge Spar Retaining Pin |
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Jaques,
Those will work very well if you don't plan on opening and re-folding your wings frequently. If you do, use the clevis pins. They'll go in and out much faster. Those of us who trailer our Kitfoxes to the airport place a premium upon quick set-up and takedown so that we can get on with the flying.
Jacques Voynaud <jacques.voynaud(at)cegepat.qc.ca> wrote:
[quote] P { MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt } LI { MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt } I bought the plane with drilled bolts and nyloc nuts plus safety pins instead of the clevis pins. I hope this is not wrong.
Jacques Voynaud
Conseiller en formation
[quote][b]
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Guy Buchanan
Joined: 16 Jul 2006
Posts: 1204
Location: Ramona, CA
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| Posted: Wed Aug 29, 2007 1:36 pm Post subject: Re : Leading Edge Spar Retaining Pin |
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At 06:00 AM 8/29/2007, you wrote:
| Quote: | | I bought the plane with drilled bolts and nyloc nuts plus safety pins instead of the clevis pins. I hope this is not wrong. |
I use AN bolts with castle nuts and safety pins because I do not like the possible failure mode of the two spar reinforcements splaying. I like to have the spar captured with something more substantial than a cotter or safety pin. I store folded and fold two or three times every week and have no problem with the threads. (Actually the threads loose in any battle with the aircraft frame.)
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar. [quote][b]
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_________________
Guy Buchanan
Deceased K-IV 1200
A glider pilot too. |
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