Hi,

 Attached is my idea of a simple fuel system for my Vision low wing
 aircraft.
 Will this work or am I overlooking something?

 Regards,

 Pierre Swanepoel

 Not a bad idea. Looks like it is worth a try. Monitor the tank
 quantities when testing to see what happens. I assume there is a bit
 of dihedral in the wings.

 Paul Lamar

 Pierre,

What would happen if someone closed the shut-off valve while the pumps were
running?

Mark S.

Good point Mark. Probably best to forget the valve and turn off the pumps.


Paul Lamar

Classic teaching is that you don't run low-wing aircraft on "both" tanks.
Can't remember the exact reason. Maybe too easy to pick up air from the
dry(er) tank?  But certified low wings always have a valve that definitively
selects which tank is in use and there is no tank equalization by gravity.
That lesson was probably learned the hard way..

FWIW,  I also think that you will find that you prefer to have better
control of where the fuel is for a lot of reasons.  I have one wing that is
a little heavy, but I solve the issue by keeping a little more fuel in the
tank on the other side.  I also prefer to 'stack' my fuel into one tank at
the end of a long cross country.   You get the picture.