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I found my fuel cutoff valve handy when I was reworking my sump tank, then when I re-routed and put firesleeve over my fuel lines, and when inspecting/cleaning fuel filters,etc. It is nice to be able to shut the fuel off anytime you want to work downstream on your fuel system...It is also nice to have in an emergency (fire, off field landing, etc). Also, my DAR said he wanted to see a fuel cutoff. Paul Conner
----- Original Message ----- From: "Ernest Christley" <echristl@cisco.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, March 02, 2005 3:52 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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