Piper COMANCHE - Page 14

I SECTTON Tha Piper Comanche
VI. Fuel System:
Two nylon and neoprene
fuel celle in the inboard leading
edga sections of the wings pro-
vide fuel capacity. The cells
should be kept full of fuel did
ing storage of the airplane to
prevent accumulation of mais*
ture and deterioration of the
cells. For long brm titorage
widlout fuel, he cells should be
coated with light engine oil to
keep the rulber from drying
out.
Each fuel cell holds a maximum of 30 gallons.
On the 180,
to obtain he standard fuel quantity of 50 gallong total, or 25 gallons
per tank, the cells are filled only to the bottom of (bc filler neck,
which extends into tho fuel cell about- om inch. To obtain the
standard plus reserve quan~ity, the cells are filled to the top of the
filler necks. This system provides a reserve fuel capacity willlout the
necessity for exba tanks, valves and lines.
On the 250 Comanche, 60 gallons is the standard fuel capacity,
and the tankg are normally filled to the tops of the filler necks.
3
An electric auxiliary fuel pump is provided for use in the event