fuel system education
 

Hi Bunch!
After all the chat back and forth I started reading more manuels. My 65-73 maintenance manuel shows that the nonturboed models - thru 337D - return excess fuel to respective mains, the turbo diagram - as several have stated - goes thru a "y"and could go to either main or aux tanks.
The O2 setup is same as 67/68 models.
I don't fly a turbo model, so have no practical experience with the related fuel management proceedures.

WHOAAA!!
 

After 3 hours, my bladder says, when you gonna land!!
Reminds me of a joke from AVWEB

Pilot: How long can we expect to hold
ATC: Is there a problem?
Pilot: Do the words "Daddy I have to go to the bathroom" mean anything to you?
ATC: You're next for the approach.

Larry!

The question is not how long one can fly, but it goes to the issue of turbo aux tanks. It would be good to know how much fuel one has especially if you get caught upstairs in a sudden weather change. Of course if you don't get caught in any stuff like that, then the qestion is moot.

I guess I am puzzled by the way the Cessna service manual confuses everything. I, as I am sure you are as well, would like some clear material from them. I look at the diagrams and the the discussions in 11-6, etc and the manual seems to contradict itself.

I just keep flying mine for the time being like it is a NA 337. It doesn't hurt and works every time. But if I knew the correct answer to our puzzle, I would be a little more sure about how much fuel I have.

But your right about the bladder and in addition to that, how about a little fatigue honing in on a long flight.

John