Today's Message Index:
----------------------
1. 10:51 AM - About those stiffening circles around the lightening holes in wing ribs... (Ralph Finch)
2. 12:20 PM - Re: About those stiffening circles around the lightening holes in wing ribs... (Dennis Thomas)
3. 12:23 PM - Re: About those stiffening circles around the lightening holes in wing ribs... (RScott)
4. 01:13 PM - Re: About those stiffening circles around the lightening hol es in wing ribs... (jofrap1@juno.com)
5. 02:35 PM - About those stiffening circles around the lightening holes in wing ribs... (JOHN TIPTON)
6. 04:40 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)
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...
Hi Ralph,
The raised area around the holes are to stiffen and strengthen the rib. In mashing
them flat you may distort the shape of the rib as well as weaken it. Before
doing that I would suggest talking to one the techs at Van's.
Dennis Thomas
RV-9
485 hours
----- Original Message ----
From: Ralph Finch <rgf@dcn.davis.ca.us>
Sent: Friday, July 24, 2009 10:48:02 AM
Subject: RV9-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
Message 3
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| Subject: | Re: 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 hol |
es in wing ribs...
Hi
I don't remember mounting anything to the wing ribs please describe.
Joe
---------- Original Message ----------
From: "Ralph Finch" <rgf@dcn.davis.ca.us>
Subject: RV9-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 o
ut
for lightening...and around each hole is stamped a modest raised/indente
d
circle in the sheet metal, for stiffening I suppose.
It is the raised side that causes problems when trying to attach somethi
ng
flat there. I'd like to somehow squash or flatten a portion of the rais
ed
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 m
ount
on the other side.
What have RVers done to solve this little problem?
Thanks,
Ralph Finch
Davis, California
RV-9A QB-SA
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Message 5
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| Subject: | About those stiffening circles around the lightening holes |
in wing ribs...
For the mounting of the 'Gretz' pitot heat controller, I thought of using
long screws (attach bolts), with alloy 'stand off' tubes which should solve
the problem you are encountering.
Check out one or two of the builders web sites there are many options out
there.
John
>> 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...
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...
At 02:29 PM 7/24/2009 Friday, JOHN TIPTON wrote:
>
>
>For the mounting of the 'Gretz' pitot heat controller, I thought of using
>long screws (attach bolts), with alloy 'stand off' tubes which should solve
>the problem you are encountering.
>
>Check out one or two of the builders web sites there are many options out
>there.
>
>John
>
>
>>>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 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
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