4) Fuel Usage
Fuel Initialization Page -
Displayed
on startup or when the “Initial Fuel”
button is pressed. The MFD will
display the fuel initialization page
and ask the pilot to input the
amount of fuel added to the aircraft.
A Button for "Fuel Full" is available
to quickly set the fuel level to a full
tank. In addition, the right knob can
be used to fine tune the amount of
fuel added.
When the desired amount has been
entered, pressing the "Fuel Done" button will exit the fuel initialization page.
In the fuel area of the Engines Page, the MFD displays Fuel Quantity, Fuel Flow, Fuel
Used, Fuel Remaining, Time Remaining, and Fuel Economy.
QUANTITY -
Displays the current measured fuel quantity in U.S. gallons as two vertical
bars, one each for the left and right main wing tanks.
FLOW -
Displays the current fuel flow in gallons per hour as reported by the DAU.
USED -
Displays the total amount of fuel used since the last engine start as reported by
the DAU.
FUEL RMNG -
Displays the total amount of fuel remaining in gallons. This indication is
calculated by the MFD based on the starting fuel entered by the pilot on the fuel
initialization page and fuel used as reported by the DAU.
TIME RMNG -
Displays the amount of time remaining before the
total useable fuel on board will be consumed. This indication is
also calculated by the MFD based on the fuel remaining, and fuel
flow as reported by the DAU. This value is only displayed when
the GPS ground speed is greater than 50 knots.
ECON -
Displays the current fuel economy in nautical miles per
gallon. This indication is based on the fuel flow as reported by the
DAU and the ground speed as reported by the GPS. This value is
only reported if the GPS ground speed is greater than 50 kts.
Engine Instruments - Fuel Usage
FlightMax EX5000
-16-
600-00105-000 Rev 01
NOTE: It is critical to accurately enter the actual onboard fuel quantity on
the initial fuel page to ensure accuracy of the fuel totalizer functions.
Aircraft pre-flight inspection should include visual identification of the actu-
al fuel in each tank in accordance with aircraft POH procedures. After the
amount of fuel has been visually confirmed, this amount should be entered
into the MFD initial fuel page. Inaccurate fuel entry can result in a mislead-
ing indication of fuel or time remaining, which could lead to fuel starvation,
loss of engine power, and forced landing.
NOTE: Be sure to cross-check fuel quantity and fuel remaining during
flight. Fuel quantity is the amount of fuel in the tanks, as measured by the
tank probes. See the aircraft POH for any limitations on the fuel measure-
ment. Fuel remaining, however, is the amount of fuel remaining based on a
calculation using the initial fuel amount entered by the pilot, and the fuel
flow integrated over the time of the flight so far.
