REFUELING
Gravity Refueling
Refueling is accomplished through the tip
tank filler caps (Figure 5A-12). The fuel be-
gins to flow by gravity into the wing tanks as
the tip tanks reach one-half full. The wing
standby pumps are used to fill the fuselage
tank. (See Fuel Transfer System, this chapter.)
Do not attempt to completely fill one
tank before adding fuel to the oppo-
site tank because excessive lateral
unbalance will occur. When fueling,
fill both tip tanks simultaneously or
alternately add 125 gallons (472.3
liters) of fuel to each tip tank until the
desired amount is obtained. On
Model 23, the limits are 150 gallons
(567.8 liters).
The fuselage tank may be filled after landing
or while taxiing to the parking area to conserve
battery power. If not accomplished in the above
manner, a GPU should be used.
When the airplane is full of fuel, the airplane’s
CG is near the aft limit, and the use of a tail
stand should be considered.
CAUTION
5A-16
FOR TRAINING PURPOSES ONLY
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