Super 80 Professional – AOM
FUEL
Section 16 Page 2
Super 80 Professional – Aircraft Operating Manual
Coolsky, 2018
GENERAL
General
The MD-80 aircraft is equipped with three
fuel tanks. The total fuel capacity is 39 128
lbs (5840 US gallons). The main wing tanks
each have a capacity of 9 266 lbs. The
center wing tank has a capacity of 20 596
lbs.
The Fuel Control Panel is located on the
overhead panel.
Fuel feed
Each fuel tank has two AC boost pumps
installed. Each main boost pump can supply
both engines at take-off power.
Fuel is normally provided to each engine
from the respective main wing tank.
Crossfeed from either main tank to either
engine is available, but fuel transfer is not.
The purpose of crossfeed operation is to
correct a main tank imbalance. The Fuel
Crossfeed Valve Lever is located on the
pedestal.
Fuel loaded in the center tank should be
used before the main wing tank fuel. The
two center tanks pumps are connected in
series to provide higher pressure than that of
the wing tank pumps, connected in parallel,
and insure usage of the center tank fuel
even with both main tank pumps operating.
A 28 volt DC start pump, operated by a
switch on the overhead panel, is installed in
the right main tank and is used for APU or
engine starting when AC power is not
available.
Low fuel pressure at the engine inlet is
indicated by a light on the annunciator
panel. Each engine can suction feed from
the respective main tank. The APU can
suction feed from the right main tank.
Neither engine nor the APU can suction feed
from the center tank.
Fuel quantity display
The Digital Fuel Quantity Display is located
on the left side of the center instrument
panel. It displays the fuel quantity of each
main tank, the center tank, total fuel
quantity and aircraft gross weight.
The precision of the Fuel Quantity Display is
25 LBS.