REFLECTOR:Low fuel light

[Pat Shea]

John,

As Scott B. has pointed, fluid dynamics can be very
unintuitive. Assume it's not going to work. I would
want to first run all the static tests possible
(gravity flow with and without the sump vent, refill
rate of unvented sump full of air...). Consider
waiting until in-flight to clamp the sump vent off -
high over an airport or something better so you have a
decent chance of getting the engine restarted or
making a safe landing if it doesn't work out.
Obviously the dynamic testing will need to be done
across the entire flight envelope at different fuel
levels. Bottom line - I wouldn't approach this lightly
(not that you would). 

Pat

   
--- John Dibble <aminetech@dixie-net.com> wrote:
> Ronnie,
> Thanks much.  .72 psig doesn't sound too high.  I'm
> thinking of blocking
> off the vent line and allowing the two over flow
> vents to pressurize the
> 3 tanks.  



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