 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
rob10(at)tlb.sympatico.ca
Guest
|
 Posted: Sun Oct 16, 2011 7:43 am Post subject: elevator assembly bolt |
 |
|
I read many messages about the elevator assembly bol at the end of the elevator rod. I was going to change for an hex bolt to make it easier to remove and install at annual inspection
An aviation mechanic told me that the clevis slotted bolt is meant to work in a shear situation, like the assembly we got on our Kitfox, while the hex bolt is for tension load.
So, I understand there is a difference between those bolts ane should keep using the recommended clevis shear bolt for that application.
Am I wrong with this?
Jack
Model 4- 912 UL
[quote][b]
| | - The Matronics Kitfox-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?Kitfox-List |
|
|
|
| Back to top |
|
 |
57_kid
Joined: 27 Aug 2006
Posts: 50
|
| Posted: Sun Oct 16, 2011 8:01 am Post subject: elevator assembly bolt |
|
|
I would advise using the correct bolt but as it is an experimental you have the option of experimenting with this bolt….at your own peril
Steve
From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of rosane
Sent: Sunday, October 16, 2011 10:41 AM
To: kitfox-list(at)matronics.com
Subject: elevator assembly bolt
I read many messages about the elevator assembly bol at the end of the elevator rod. I was going to change for an hex bolt to make it easier to remove and install at annual inspection
An aviation mechanic told me that the clevis slotted bolt is meant to work in a shear situation, like the assembly we got on our Kitfox, while the hex bolt is for tension load.
So, I understand there is a difference between those bolts ane should keep using the recommended clevis shear bolt for that application.
Am I wrong with this?
Jack
Model 4- 912 UL | Quote: | | http://www.matronics.com/Navigator?Kitfox-List |
0123456789
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.1831 / 10/15/11
[quote][b]
| | - The Matronics Kitfox-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?Kitfox-List |
|
|
|
| Back to top |
|
|
Tom Jones
Joined: 12 Mar 2006
Posts: 752
Location: Ellensburg, WA
|
| Posted: Sun Oct 16, 2011 2:23 pm Post subject: Re: elevator assembly bolt |
|
|
Here's the AC43.13-1B description of the bolts.
http://www.google.com/url?sa=t&source=web&cd=1&ved=0CCMQFjAA&url=http%3A%2F%2Frgl.faa.gov%2FRegulatory_and_Guidance_Library%2FrgAdvisoryCircular.nsf%2F0%2F99c827db9baac81b86256b4500596c4e%2F%24FILE%2FChapter%252007.pdf&rct=j&q=ac%2043.13-1b%20chapter%207&ei=P1WbToJ95piJAovWwKoN&usg=AFQjCNHY0R3h15PB4iLsDuKUnWf-YEtkKg&sig2=n9-WnC4eJEtyZu9Wcbpiiw&cad=rja
| Quote: | 7-41. STANDARD AIRCRAFT HEX
HEAD BOLTS (AN3 THROUGH AN20).
These are all-purpose structural bolts used for
general applications that require tension or
shear loads. Steel bolts smaller than
No. 10-32, and aluminum alloy bolts smaller
than 1/4 inch diameter, should not be used in
primary structures. Do not use aluminum bolts
or nuts in applications requiring frequent removal
for inspection or maintenance.
7-50. CLEVIS BOLTS (AN21
THROUGH AN36). These bolts are only
used in applications subject to shear stress, and
are often used as mechanical pins in control
systems. |
I'm not an A&P but my understanding is hex bolts are used in both shear and tension loads. Clevis bolts are only used in applications subject to shear stress.
Clevis bolts have the flat slotted head and short threads for a thin AN364 shear nut. This is needed for the clearance from the fabric at the rear of the tube.
You will note in your kitfox manual that the foreword end of the elevator control tube uses a hex bolt through the rod end connected to the control column. In the control column a hex bolt on the right side where there is room and a clevis bolt on the left side where the clearance is needed.
| | - The Matronics Kitfox-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?Kitfox-List |
|
_________________
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA |
|
| Back to top |
|
|
occom
Joined: 26 Aug 2006
Posts: 404
|
| Posted: Sun Oct 16, 2011 3:54 pm Post subject: elevator assembly bolt |
|
|
Perhaps I am missing something. I never experienced a bit of angst about
this bolt. I noticed a lack of room and quickly burned a hole in the fabric
so I could hit it with a straight screwdriver. Then I used the hole to pass
the wires for the trim servo out of the fuselage. To reverse the procedure,
unplug the wires, pass 'em back inside and raise the elevator to line the
bolt up with the hole.
Do not archive
Dave G. KF IV 582 Warp
| | - The Matronics Kitfox-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?Kitfox-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
