Hi Ernie!
First, we have checked this twice and found there is 6 gallons left in each tank (aux) when we re-fill. The POH says "18 gallons useable in each tank." It also says,"...any excess fuel and vapor from the engine driven pumps is retruned to the fuel line manifolds." The returned vapor passes throught the fuel line manifolds to the vent lines and is routed overboard. The excess fuel passe4s into the fuel line namifold and is returned to the dengine driven pumps."
the POH also indicates that there is 19 gallons in each aux tank with 18 being useable.
I am still confused by it. It would be nice if you could squeeze the extra 6 gallons out of the aux tanks. I think the one hour rule is probably the controlling factor.
If you think of anything else, let me know. If you remember the last time we visited the aux issue, I lost a bet on the aux tanks because I told mypartner about the procedure for a NA 337. He then pointed out the difference in the diagrams between the Turbo and the NA 337.
Interesting problem here. I would like to know why.
JOhn
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