Section 7
Columbia 400 (LC41-550FG)
Description of the Airplane and Systems
Initial Issue of Manual: November 10, 2004
RC050002
Latest Revision Level/Date: A/12-01-2004
7-107
4.
Fuel Usage
a.
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.
b. 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.
c. When the desired amount has been entered, pressing the “Fuel Done” button will exit the
fuel initialization page.
d. From the Engines page, the MFD displays fuel used, fuel remaining, time remaining, and
fuel economy.
e.
USED
–
Displays the total amount of fuel used since the last engine start as reported by
the DAU.
f.
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.
g.
TIME RMNG
–
Displays the amount of time remaining before the total usable fuel on
board will be consumed. This indication is also calculated by the MFD based on the
setting from the fuel initialization page, 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.
h.
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 knots.
5.
Engine Page
–
Cylinder Temperatures
a.
Turbine Inlet Temperature (TIT)
– Indicates the exhaust temperature at the left
turbocharger intake in degrees Fahrenheit.
NOTE
The TIT displayed on the MFD may indicate up to 50°F higher than the
analog TIT gauge. When leaning using the TIT gauge, the hottest
indication should be used.
b.
Exhaust Gas Temperature (EGT)
–
Indicates the exhaust gas temperature of each
cylinder in degrees Fahrenheit as a bar graph. The individual EGT of each cylinder is also
displayed as a numeric indication above each bar. An up or down trend arrow will also
appear below this numeric indication to indicate whether a cylinder's EGT is rising or
falling. See Figure 7 - 35.
c.
Cylinder Head Temperature (CHT)
–
Indicates the temperature in degrees Fahrenheit
of each engine cylinder head as reported by the DAU. The individual temperature of each
cylinder is also displayed as a numeric indication above each bar. A white up or down
trend arrow will also appear above or below this numeric indication to indicate whether a
cylinder is rising or falling in temperature.
d.
Absolute
–
Selects the “absolute” mode for EGT display. Absolute mode is the default
display mode, which indicates the current exhaust gas temperature for each cylinder.
e.
Normalize
–
Selects the “normalize” mode for the EGT display. Upon activation, the
display will establish all of the current EGTs at a zero point. See Figure 7 - 36. In EGT
normalized mode, the bar graphs will indicate overall changes in EGT and TIT rather
than displaying the actual temperature values as in absolute mode.