Todd Carrico wrote:

Perry Mick wrote:

I put the Mazda fuel pump in a small tank, about 1/2 gallon
capacity.  This is at the lowest point in the fuel system.  The
selected main tank, left or right, drains into this small tank
by gravity.  There is a single vent line from this small tank to
the top of the firewall, behind the passenger's head. The fuel
return from the engine returns to this small tank.

I would worry about fuel coming out of the header tank in event
of a rollover.  Being upside down, on the ground is bad enough
without fuel draining out.  You may be able to get away without
a drain on the header tank, and put in a burp line that you would
use to initialize the tank.  Then close it and rely on the fuel tanks
to "vent".  I am pretty sure that is the way the AeroCanard is done.
(tc)

Does anyone see a problem with this setup?

I've thought about putting in a second fuel pump for redundancy.  They
would not be in series, but two pumps feeding a common output line.
Could both be on simultaneously, or would it be either/or?

If you were to run two pumps in parrallel, how would you be notified
of a pump failure?  Just during preflight, switch pumps just like mags?
(tc)

--
Perry Mick
Duckt N7XR
http://www.mickaircraft.com/duckt.htm

 
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