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A couple of thoughts on useable fuel.  Run a tank dry at altitude.  This
will give you all remaining fuel in the other tank and reduce the likelyhood
of unporting the wet tank in anticipation of a minimum fuel situation.  If
your totalizer is accurate this is also one of the best ways to measure
useable fuel in a tank, just in case you are venting in flight and don't
know it.   Better test on the ground first to be sure your pumps will
reprime from an empty tank/engine quit to restart.  If it won't, better to
find out on the ground.  Oh yeah, I arrived at this after having my hands
full, flying around under unforecast low weather in Wyoming where the
airports and navaids are scarce, pre GPS.  I landed on the tank with 2 gal.,
the other tank had 4 gal., makes you think.

Andair has a check valve for fuel vents that is standard on the Legacy.
Aside from minimizing venting fuel while taxiing it could save fuel in climb
and uncordinated flight.  It has about a .050 hole in addition to the check
valve for expansion venting.

Steve Colwell   Legacy 2K  Placerville,CA   (530) 621-3408

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