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This was an issue with me also, so I built up a 3-minute timer to parallel the transfer pump switch. Push the button once, and presto, at one gallon per minute through the Facet pump, you get 3 gallons and it shuts off. No memory required. Just make sure there is room for 3 more gallons (aileron trim will give you an additional hint).
Bill Eslick
13B NA
On Wed, Dec 3, 2008 at 7:34 AM, Tracy Crook <tracy@rotaryaviation.com> wrote:
Charlies' suggestion of the Facet transfer pump is what I've been using. I use a 'T' in the fuel return line to the main tank for the transfer pump so it didn't even require an additional fitting in the tank (above what is necessary for EFI). The Facet has a check valve function internally. There really is not a simpler system that I am aware of.
Yes, it has the 'failure mode' of dumping fuel out of the main tank vent if you forget to turn off the transfer pump, but that's not nearly as bad as forgetting the tank selector valve is on the 'almost empty tank' during takeoff in a conventional system. I do have a Fuel Transfer timer in the EM2 monitor to help me remember.
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