Mailing List flyrotary@lancaironline.net Message #18279
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: fuel cutoff valve necessary?
Date: Wed, 2 Mar 2005 19:11:44 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

I don't doubt that it is so, Ed, but putting the edicts from Federal
agencies aside, I'd like to raise the question of whether it is safer.

Indeed, how many crashes have resulted from people taking off with the fuel valves off?  Granted, that won't happen with fuel injection, but with a big carb bowl it does. 

Assuming that connections will be the weakest spot in any system, and
that there actually is a pump that blocks flow when there's no power
applied (I haven't tried to determine if there is),  I would argue that
the pump IS the cutoff valve,

This is another one of those questions I've never seen a good answer for, so out to the garage I just went.  I grabbed one of the Walbro in-tank pumps, and tried with all my might to blow through it, and could not.   With the exception of my cheeks, I feel better now.  My RV-3 has no fuel shutoff valves. 

Rusty (forgot what I was going to put here)

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