To David Joyce - here is what I told Tony Renshaw -
See SAAA Const of Amateur Built Aircraft in Australia on page 43 -
Fuel Tank Bonding " ................Any metal filler necks or caps, in
nonmetallic rubber bladder or composite type tanks must also be bonded. A
bonding lug for attachment of the earthing lead on the refilling nozzle must
be provided adjacent to all tank openings and this must be connected to the
aircraft's bonding system."
I have mine soldered to the water drain pipe (inside the tank) and coming up
to the filler neck at this stage. It will be connected electrically to the
earthing
system.
J R (Bob) Gowing, Kit 327 in Oz
----- Original Message -----
From: "david joyce" <davidjoyce@beeb.net>
Subject: Europa-List: Static charges, etc
>
> I have followed this discussion with great interest and growing confusion.
The only clear messages that I have got out of it are, (1) that routing
anything metallic down into the tank simply invites lightning to attack you
where it hurts most, and (2) Vapour concentrations down any of the pipes
should be high enough to inhibit any fire or explosion.
> I wonder whether anything proposed improves on my Europa Manual
suggestion of grounding absolutely nothing in the fuel system! As far as
filling goes I am tempted to think that the simple approach might also be
best. By this I mean using a metal jerry can, with bare hands (which will
thus automatically be grounded or at least equilibrated with you) and
deliberately touching the metal neck of the filler, before removing the
cap, which will thus equilibrate with you also, and will pretty much
guarantee that you will not get a spark anywhere where there is any
possibility of of it igniting anything. David G-XSDJ
All above seems relevant. Matronics info snipped
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