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I have to agree with Mark. I have the Andair duplex
selector but would copy Tracy's design if doing it again. One possible
exception. The Diamond DA40 diesel uses basically the same system as Tracy
by returning the fuel to the left tank only. However it does have a fuel
selector to draw from the right tank just incase the transfer pump
fails. Omitting the fuel cooling loop of course.
Bobby
Randy,
The simpler the better. Tracy's system is about as simple as you can
get and has proven itself over many hours of flying. He has one EFI pump
drawing and returning to main wing tank. Then he has a facet
pump to transfer fuel from the second wing tank to the main wing tank. He
runs the facet pump as needed to replace the fuel used from the main tank.
No valves, minimal plumbing. If I were to do it over, I would copy Tracy's
design.
Mark S.
On Tue, Dec 2, 2008 at 5:58 PM, randy echtinaw <rjechtinaw@toast.net>
wrote:
Gentlemen,
Because
a large majority of homebuilt problems are fuel related I am trying to make my
system as simple as possible. This is a biplane with a 20 gal. and a 10 gal.
tank in front of the inst. panel, RX-8 engine.
The only "known" problem I
have at the moment is my fuel return. I would like it to return to the main
tank only. This would mean burning off 2-3 gallons from the main tank before
switching to the 2nd tank. But, this might mean I am setting myself up for a
future "pilot error" in fuel management. If I return to both tanks I would
need another selector and cockpit control which is making the system more
complicated and, again, potential "pilot error." So, suggestions . .
.
Thank you very much,
Randy
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