Next message: Pascal Gademer: "T&T: Yacht Design"
With fuel manifold installations, if the fuel returns are in general hard
plumbed to a single tank as Brent posted, that explains a lot. You CAN'T
really draw from alternative tanks without keeping the fuel manifold connected
to multiple tanks...otherwise one tank or another would likely overflow. So I
finally understand fuel supply manifold design.
As Pascal posted, Hatteras's seem to be plumbed with separate supply and
return line selectors, not a common manifold, and that provides optimum
flexibility...I've found that to be an ideal combination. To reduce the number
of supply and return lines and valves, in my Hatteras YF the generator is
permanently plumbed to my center tank. (Unless I just never found a selector
valve(s).) If that tank were to ever get too empty, I could return fuel from
either or both engines and in that way transfer fuel from a tank with adequate
fuel.
I'm guessing the fuel manifold design uses less plumbing while providing
adequate flexibility for most situations.
Interesting discussion, thanks to all for your ideas. Rob Brueckner
1972 Hatteras YF
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