To our friends on the east side of the pond.
What is the typical opinion of the PFA inspectors on the wing conduit and
pitot/static/stall warner lines. Do you have to reinforce where holes are
made in the ribs? I question this because I believe (and not know) that the
middle portion of the rib is only caring negligible loads. This is where our
friends in the flying aluminum cans cut there holes to make the structure
more lightweight. My intension is to run 2 1/4 inch aluminum lines for pitot
etc and an about 1/2 inch conduit for electrical supply.
Best regards
Michael Grass
A266 Trigear / 914/ Woodcomp VP
Detroit, Mi
----- Original Message -----
From: "G-IANI" <g-iani@ntlworld.com>
Sent: Sunday, September 24, 2006 5:28 AM
Subject: RE: Europa-List: wing conduit mod
>
>
> Rowland
>
> "I just checked the PFA website for the list of "standard" mods, and
> don't see anything there about wing conduits."
>
> You are right. Jeremy Davy has a mod (10713) which I started to convert
> into a standard mod last year. As the eelier standard mods had
> disappeared into a "Francis hole" ( This is a black hole that does not
> have an event horizon for the physics buffs) I stopped work on it.
>
> At the meeting I had with Francis on 29 March 2006 it was agreed
> (Rowland you have had a copy of the minutes of this meeting) that there
> was no need for a standard mod for this as Francis is satisfied that it
> is cover by "standard aircraft practice" (otherwise know as a "non
> mod"). So carry no, just carry on as long as your inspector is happy.
>
> "I think I'd like to install conduit before I close the wing, not just
> for the possibility of wingtip lights or strobes"
>
> Yes and also remember that you will need the conduit if your pitot and
> static pipes become brittle and need replacing.
>
> "also because the conduit can provide a very handy hole to insert a
> support when turning the wing over"
>
> Well not so much the conduit but a hole in the wing tip. I have a
> reinforced hole her which is finally used as the nav light mount but it
> was very handy (with a piece of curtain pole that happened to be the
> correct diameter inserted) for handling and rotating the wing during
> finishing and spraying.
>
> If you want to see what others have done I can send you some pictures
> off list.
>
>
> Ian Rickard #505 G-IANI XS Trigear
> Europa Club Mods Rep (Trigear)
> e-mail mods@europaclub.org.uk
> or direct g-iani@ntlworld.com
>
>
>
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