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From: "Rino" <lacombr@nbnet.nb.ca>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: hauling gas
Date: Tue, 10 Feb 2009 19:40:41 -0400
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My two cents.   The filler neck is grounded to the engine and the front 
wheel.   I always put my extended hand between the filler neck and the fuel 
can, touching the filler neck first to not produce a spark close to the 
opening.   I do the same when filling the gas can at the service station.

Rino

----- Original Message ----- 
From: "Al Gietzen" <ALVentures@cox.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, February 10, 2009 1:06 PM
Subject: [FlyRotary] Re: hauling gas


> Al Gietzen wrote:
>>
>> My simple approach is to use a metal chain, which serves as cap retainer,
>> which hangs from the metal cap flange into the fuel, back to the cap.
>> Contacting the end of the hose to cap/cap flange prior to removal takes
> car
>> of any residual.  Maintaining contact between the hose and the flange
>> (keeping the cap chain, or cable, hanging into the fuel) keeps fuel and
> hose
>> at the same potential.
>>
>>
> Al, you're giving me the heebee-jeebees here.
>
> The problem is that the can and fuel in the tank may already have a
> differential charge built up.  Then you may be getting an invisibly
> small spark connecting the can to the chain in the tank.  The spark
> would have to be at just the right place to get a fuel-air mixture to
> ignite, so chances of bad things happening are extremely low.  But such
> an easily remediated exposure.
>
> Ernest;
>
> Maybe one of us is missing a step here.  I contact can (or hose) to the
> cap/flange prior to removing the cap, then maintain contact with the 
> flange
> during fueling (flange connected to the fuel via the chain.  I believe 
> that
> takes care of any a priori differential.  No?
>
> Al G
>
>
> --
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