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To those who've been there-done
that on early Lancairs -- request your comments. I want a minimum-management
on-off fuel supply.
For my L235 w/ IO320, I'm now
running the fuel line from each wing tank through a filter on
each Facet pump, then from each pump -- both into an open Tee, up to the
header tank --
Control of the Facet wingtank
pumps' is on-off with an optical level-sensor in the header,
to break or complete the
plus-circuit 12VDC to each/both tanks' power-on/off
switches.
Left and right tank Facet pumps
individual switches are normally left on, and powered when a/c master is
on. A red 'pumping' light is in the wing tank pumps' power circuit,
cycles on and off as sensor demands fuel for the header.
When light stays on, attention is called to the
How can power to the
L and R wing tank Facet pumps automatically switch off when the
wing tanks are dry?
From header, fuel
flows through manual on-off valve, through filter to boost pump
(recirculate pressure circuit) , to engine driven pump, through fine filter to
fuel servo, to spider and injectors (airflow performance.)
Would it hurt the Facets to run
if one runs dry before the other? (No check valves; Flow is one-way through
the pumps).
Terrence
L235/320
N211AL
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