REFLECTOR:Low fuel light

[Pat Shea]

FWIW - If you were to block off the fuel lines going
from the strakes to the sump, drain your sump
completely, close the sump vent, and then release the
fuel lines, the sump would refill almost completely.
The air in the sump simply vents via the fuel inlet
lines from whichever strake is at a lower pressure.
The pocket of air at the top of a sumps in planes
without sump vents is just air trapped above the fuel
inlet lines.  

Pat


--- KeithHallsten <KeithHallsten@quiknet.com> wrote:
 
> Personally, I try to fly coordinated turns, so the
> strake drains to the sump tank stay covered with
> fuel.  However, if a little air were introduced to
> the sump tank it would not interfere with the
> operation of the fuel system - you would just have a
> bubble in the sump tank.  If the bubble were large,
> it might make its way back into one of the strake
> tanks, but that's of little concern, as long as the
> volume of air remains only a percentage of the
> volume of the sump tank.  The next time you fill the
> tanks, just exercise the sump vent valve to allow
> any trapped air to escape.
> 
> Keith
 



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