Perry Mick wrote:

Jeff Spitzer wrote:

In light of the recent S51 crash that may have been a fuel problem and the
known fact that a majority of kit crashes due to mechanical failure involve
fuel delivery, I believe it's time we had an in-depth discussion of how a
proper fuel system should be designed for a 13B powered airplane.  I think
to limit the scope it would be reasonable to consider all engines injected
and therefore requiring "high pressure" fuel delivery systems.  I propose
we start by having the members whose planes are flying post the details of
their fuel systems.  From there we can look at what works, what people
like, and what they don't.  If we can have half the discussion about fuel
delivery that we did about cooling we should definitely save some hardware
if not some lives.

Great idea.

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.         

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?

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

The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org