below
Steve:
The reason why the center vertical is chosen is because it is where the
neutral axis of the rib is. If the rib is exposed to a bending moment the
stress is the least toward the center and the most at the extreme edge.
That is why I beams have most of the material on the top and bottom and
mimimal in the web area.
Steve
A143
Mesa AZ
Steve Hagar
hagargs@earthlink.net
> [Original Message]
> From: Steve & Eileen Genotte <damnyankees@comcast.net>
> To: <europa-list@matronics.com>
> Date: 3/21/04 8:42:51 PM
> Subject: Europa-List: RE: Conduit Positioning
>
<damnyankees@comcast.net>
>
> How did you arrive at the center vertical position in the rib? I ask
> because I seem to remember rather distinctly Andy Draper telling me to put
> the conduit low, but not so low as to make the bottom of the cut remove
more
> than "X" amount of rib above the lower wing's skin. (It's been a few
years
> and I didn't write it down, so my apologies for only having "X" as a
> reference.) I don't have the wings here - and they're closed anyway - so
> I'm unable to proffer much beyond this hazy recollection and the picture I
> just downloaded to the Europa Forum.
>
> Steve "El Roto" G.
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com]On Behalf Of
ScramIt@aol.com
> Subject:
>
>
> In a message dated 3/21/04 12:28:22 AM, damnyankees@comcast.net writes:
>
>
> > http://home.comcast.net/~damnyankees/Wingpage.htm
> >
>
> SteveG,
> I answered Brian off list, hope your back is feeling better. Love your
site,
> nothing like telling it like it is. The only thing I would say is to make
> the
> holes in the ribs as near to center as possible, in the vertical
dimension.
> Make a two ply patch 2x2 then drill your hole through that. I added my 2x2
> patches later so you only see it in one or two photos. Where the hole
has
> to be
> near the lower wing "floor " panel, I.E., the double rib. I reinforced the
> inside of the rib with 4 plys of bid in the U shape.
>
> SteveD
>
>
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