Ernest, I could be wrong, but seems I recall somewhere that FAA requires a
fuel shut off valve.  Someone else may know whether that is correct or not.
For the reason you stated - Safety.

Ed A

----- Original Message -----
From: "Ernest Christley" <echristl@cisco.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, March 02, 2005 4:52 PM
Subject: [FlyRotary] fuel cutoff valve necessary?


> This really doesn't apply to planes with multiple tanks, as the fuel
> shutoff generally does double duty as a selector.  But I have only one
> tank, so the cutoff valve is really only useful in case of an engine
> fire or in preperation of an emergency landing.
>
> With a fuel pump that blocks flow when it isn't running, what useful
> purpose does the cutoff valve serve beyond increasing pilot workload?
> Won't cutting power to the fuel pump provide the same service and
> eliminate several failure modes?
>
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