1961 PA-23-250 usable fuel?

[hack1982]

Anyone know how much usable fuel is available on this bird? We have 4 tanks at 36gallons apiece allowing 144 total fuel on board. I can't find the answer anywhere. In the process of having a fuel totalizer put in so of course we'd like to know the usable so it can be programmed correctly.

 

[ctab5060X]

Anyone know how much usable fuel is available on this bird? We have 4 tanks at 36gallons apiece allowing 144 total fuel on board. I can't find the answer anywhere. In the process of having a fuel totalizer put in so of course we'd like to know the usable so it can be programmed correctly.

Aztecs with the 144 gallon tanks have 140 useable. 1 gallon in each tank is unusable.

From the Owners Handbook for a 1966 Aztec C.

 

[mjg407]

Aztecs with the 144 gallon tanks have 140 useable. 1 gallon in each tank is unusable.

From the Owners Handbook for a 1966 Aztec C.

U R Correct sir, more gas than most folks bladders can outlast.....:rotfl:

 

[ctab5060X]

U R Correct sir, more gas than most folks bladders can outlast.....:rotfl:

What about the ones that had the 55 gallon outboard tanks? 182 gallons (178 useable)... could easily go for 5+ hours with a reserve!

 

[hack1982]

Aztecs with the 144 gallon tanks have 140 useable. 1 gallon in each tank is unusable.

From the Owners Handbook for a 1966 Aztec C.

thanks, that is the second time I've seen 140gals. usable. For some reason it is not stated in the 1961 POH.

 

[hack1982]

I got confirmation from Piper today, it took half a day to get the info. 140gallons is correct, technically 140.34 usable. This is coming from a Piper service center out at Redbird.

 

[t-cart]

Just got home and see that your question has been answered.

Thanks Ctab, I didn't know either.