Hi
Michael,
Hope that you’re
still enjoying your 360.
The engine in our
IV runs ONLY from the header tank. The header is fed from a manifold where all
other tanks (including the wing tanks) feed through their individual on-off
valves. From the manifold, fuel is pumped by 3 Facet pumps to the header. Each
pump is powered by a separate electrical system (I have 3 alternators, 3
batteries and 3 electrical systems). Any one of the pumps can more than keep up
with the engine even at takeoff power. If I fail to select a tank or select an
empty tank to supply the header I have 20-40 minutes, depending on power
setting, of normal engine operation before I get a big red flashing light
labeled “HEADER FUEL LOW”. Then I have ANOTHER 20-40 minutes to fix the
situation or land before I run the header dry. This setup allows me to routinely
run the wing tanks (or any other aux tank) dry without affecting engine
operation.
Bill
Harrelson
N5ZQ 320 2,150 hrs
N6ZQ IV 40 hrs.
Sent: Thursday, November 15, 2012 8:43 AM
Subject: [LML] Re: 6ZQ maiden voyage
Bill,
I recently read your
article and no fuel selector valve, that got me going...I'm just working on the
avionics and it's going to be the first of the year before any flying is
in the picture...But what have you done for selecting the fuel cell?...One fatal
accident was caused with switching fuel cell, what have you done?...I met you
briefly in Sedona at lunch
Michael
Giardino
L-IV n7sz