Home -> RV-7 and RV-7A topic: Underfloor wiring runs

Author: Martin Gomez <mlg28@...> Time: Tue Nov 15, 2005 10:01 pm PST Link

Hi,

I understand that some of you drill holes under the seats and baggage
floor to run cable conduits to the tailcone or to underfloor equipment.
I have one of my baggage floor panels off, so before I grab the Unibit I
wanted to ask this...

Is anyone concerned about drilling big holes in the rear spar? I
recognize it is loaded primarily in shear, rather than in bending, but
still...

Thanks,
Martin

--
Martin Gomez
MLG28@cornell.edu
http://www.bashingaluminum.com

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Author: Phil Birkelbach <phil@...> Time: Wed Nov 16, 2005 7:24 am PST Link

You don't want to scratch the thick bar stock that is riveted to that
bulkhead for the rear spar carry through, but a small hole in the
bulkhead shouldn't be a problem if you keep it away from the flange.
Here is a picture of what I did...

http://www.myrv7.com/viewimage.php?pictureid=215

Godspeed,

Phil Birkelbach - Houston Texas
RV-7 N727WB - Flying
http://www.myrv7.com

Martin Gomez wrote:

>Hi,
>
> I understand that some of you drill holes under the seats and baggage
>floor to run cable conduits to the tailcone or to underfloor equipment.
>I have one of my baggage floor panels off, so before I grab the Unibit I
>wanted to ask this...
>
> Is anyone concerned about drilling big holes in the rear spar? I
>recognize it is loaded primarily in shear, rather than in bending, but
>still...
>
> Thanks,
> Martin

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