Today's Message Index:
----------------------
1. 10:51 AM - About those stiffening circles around the lightening holes in wing ribs... (Ralph Finch)
2. 11:42 AM - Re: About those stiffening circles around the lightening holes in wing ribs... (Dave Nellis)
3. 12:24 PM - Re: RV9-List: About those stiffening circles around the lightening holes in wing ribs... (RScott)
4. 01:32 PM - Re: About those stiffening circles around the lightening holes in wing ribs... (Jim)
5. 02:35 PM - Re: Re: RV9-List: About those stiffening circles around the lightening holes in wing ribs... (John Bright)
6. 04:46 PM - Re: About those stiffening circles around the lightening holes in wing ribs... (Matt Dralle)
7. 08:21 PM - Looking for Builders Asistance (Garey Wittich)
8. 09:27 PM - Re: Looking for Builders Asistance (Bruce Gray)
9. 10:14 PM - Stuff for sale (Emmanuelle Richard)
Message 1
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| Subject: | About those stiffening circles around the lightening holes in |
wing ribs...
Fellow RVers,
I need to mount some stuff on wing ribs. But, the ribs have holes cut out
for lightening...and around each hole is stamped a modest raised/indented
circle in the sheet metal, for stiffening I suppose.
It is the raised side that causes problems when trying to attach something
flat there. I'd like to somehow squash or flatten a portion of the raised
circle, just enough so that the things I need to mount will fit flush on the
rib. Yes, some things must go onto the rib. No, some of this I cannot mount
on the other side.
What have RVers done to solve this little problem?
Thanks,
Ralph Finch
Davis, California
RV-9A QB-SA
Message 2
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| Subject: | Re: About those stiffening circles around the lightening holes |
in wing ribs...
What about using spacer plates or washers to move the equipment out away from the
flange?
Dave
--- On Fri, 7/24/09, Ralph Finch <rgf@dcn.davis.ca.us> wrote:
> From: Ralph Finch <rgf@dcn.davis.ca.us>
> Subject: RV-List: About those stiffening circles around the lightening holes
in wing ribs...
> To: rv-list@matronics.com, rv9-list@matronics.com
> Date: Friday, July 24, 2009, 1:48 PM
> Fellow RVers,
>
> I need to mount some stuff on wing ribs. But, the
> ribs have holes cut out
> for lightening...and around each hole is stamped a modest
> raised/indented
> circle in the sheet metal, for stiffening I suppose.
>
> It is the raised side that causes problems when trying to
> attach something
> flat there. I'd like to somehow squash or flatten a
> portion of the raised
> circle, just enough so that the things I need to mount will
> fit flush on the
> rib. Yes, some things must go onto the rib. No, some
> of this I cannot mount
> on the other side.
>
> What have RVers done to solve this little problem?
>
> Thanks,
> Ralph Finch
> Davis, California
> RV-9A QB-SA
>
>
Message 3
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| Subject: | Re: RV9-List: About those stiffening circles around the lightening |
holes in wing ribs...
Those rings provide strength, although I don't know how much. And
flattening them weakens the metal beyond what it was before the groove
was stamped in them.
One solution might be to just put spacers under your parts, outside the
rings if your "stuff" spans the diameter of the rings.
Ralph Finch wrote:
> Fellow RVers,
>
> I need to mount some stuff on wing ribs. But, the ribs have holes cut out
> for lightening...and around each hole is stamped a modest raised/indented
> circle in the sheet metal, for stiffening I suppose.
>
> It is the raised side that causes problems when trying to attach something
> flat there. I'd like to somehow squash or flatten a portion of the raised
> circle, just enough so that the things I need to mount will fit flush on the
> rib. Yes, some things must go onto the rib. No, some of this I cannot mount
> on the other side.
>
> What have RVers done to solve this little problem?
>
> Thanks,
> Ralph Finch
> Davis, California
> RV-9A QB-SA
>
>
Message 4
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| Subject: | Re: About those stiffening circles around the lightening holes |
in wing ribs...
Some have used spacers behind the items they mount on ribs such as you
describe.
Jim in Kelowna
----- Original Message -----
From: "Ralph Finch" <rgf@dcn.davis.ca.us>
Sent: Friday, July 24, 2009 10:48 AM
Subject: RV-List: About those stiffening circles around the lightening holes
in wing ribs...
> Fellow RVers,
>
> I need to mount some stuff on wing ribs. But, the ribs have holes cut out
> for lightening...and around each hole is stamped a modest raised/indented
> circle in the sheet metal, for stiffening I suppose.
>
> It is the raised side that causes problems when trying to attach something
> flat there. I'd like to somehow squash or flatten a portion of the raised
> circle, just enough so that the things I need to mount will fit flush on
> the
> rib. Yes, some things must go onto the rib. No, some of this I cannot
> mount
> on the other side.
>
> What have RVers done to solve this little problem?
>
> Thanks,
> Ralph Finch
> Davis, California
> RV-9A QB-SA
>
>
--------------------------------------------------------------------------------
>
> Checked by PC Tools AntiVirus (6.0.0.19 - 10.004.066).
> http://www.pctools.com/free-antivirus/
>
>
Checked by PC Tools AntiVirus (6.0.0.19 - 10.004.066).
http://www.pctools.com/free-antivirus/
Message 5
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| Subject: | Re: RV9-List: About those stiffening circles around the lightening |
holes in wing ribs...
Those rings add stiffness to prevent buckling of the rib web. If you flatten or
remove the stiffening rings it's not a problem if you add stiffeners; for instance
you might mount your stuff on extruded angles that provide stiffness to
the rib.
Thanks,
John Bright
----- Original Message ----
From: RScott <rscott@cascadeaccess.com>
Sent: Friday, July 24, 2009 3:23:07 PM
Subject: RV-List: Re: RV9-List: About those stiffening circles around the lightening
holes in wing ribs...
Those rings provide strength, although I don't know how much. And flattening them
weakens the metal beyond what it was before the groove was stamped in them.
One solution might be to just put spacers under your parts, outside the rings if
your "stuff" spans the diameter of the rings.
Ralph Finch wrote:
> Fellow RVers,
>
> I need to mount some stuff on wing ribs. But, the ribs have holes cut out
> for lightening...and around each hole is stamped a modest raised/indented
> circle in the sheet metal, for stiffening I suppose.
>
> It is the raised side that causes problems when trying to attach something
> flat there. I'd like to somehow squash or flatten a portion of the raised
> circle, just enough so that the things I need to mount will fit flush on the
> rib. Yes, some things must go onto the rib. No, some of this I cannot mount
> on the other side.
> What have RVers done to solve this little problem?
> Thanks,
> Ralph Finch
> Davis, California
> RV-9A QB-SA
>
>
Message 6
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| Subject: | Re: About those stiffening circles around the lightening holes |
in wing ribs...
At 10:48 AM 7/24/2009 Friday, you wrote:
>Fellow RVers,
>
>I need to mount some stuff on wing ribs. But, the ribs have holes cut out
>for lightening...and around each hole is stamped a modest raised/indented
>circle in the sheet metal, for stiffening I suppose.
>
>It is the raised side that causes problems when trying to attach something
>flat there. I'd like to somehow squash or flatten a portion of the raised
>circle, just enough so that the things I need to mount will fit flush on the
>rib. Yes, some things must go onto the rib. No, some of this I cannot mount
>on the other side.
>
>What have RVers done to solve this little problem?
>
>Thanks,
>Ralph Finch
>Davis, California
>RV-9A QB-SA
Hi Ralph,
Here's how I mounted the Gretz pitot controller PC board on my RV-8. Worked pretty
good:
http://www.mykitlog.com/users/display_log.php?user=dralle&project=638&category=2982&log=81657&row=132
http://www.mykitlog.com/users/display_log.php?user=dralle&project=638&category=2982&log=81656&row=133
Matt Dralle
RV-8 #82880 N998RV
FWF Right Around The Corner...
Message 7
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| Subject: | Looking for Builders Asistance |
Greetings:
Have RV-8A QB Kit. -Have completed Empennage and looking for assistance t
o complete Project. -Does anybody know of any person(s) that do Builders
Assistance in Southern California (preferably in the Los Angeles Area) ????
Appreciate any leads !!!!
Thanks, -Garey Wittich - Santa Monica, CA - -(310) 392-1682=0A=0A
=0A
Message 8
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| Subject: | Looking for Builders Asistance |
Aircrafters LLC, Dave Saylor. www.aircraftersllc.com
<http://www.aircraftersllc.com/>
Bruce
www.Glasair.org
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Garey Wittich
Sent: Friday, July 24, 2009 11:17 PM
Subject: RV-List: Looking for Builders Asistance
Greetings:
Have RV-8A QB Kit. Have completed Empennage and looking for assistance
to complete Project. Does anybody know of any person(s) that do
Builders Assistance in Southern California (preferably in the Los
Angeles Area) ????
Appreciate any leads !!!!
Thanks, Garey Wittich Santa Monica, CA (310) 392-1682
Message 9
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1) Janzi retrofit tailwheel steering link - replacement for the stock Van's
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fittings-816-4 (1/4")With or without Aeroquip 701 hoses and fire sleeves
.$150
http://tinyurl.com/m6rgvv
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