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时间:2010-05-17 22:15来源:蓝天飞行翻译 作者:admin
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minus fuel burn to destination (or the last waypoint prior to a gap).
The estimated fuel burn is calculated using present ground speed
and fuel flow.
Section V
Operations
2423sv602 5-123
Change 1
OVERHEAD (DESTINATION) - The calculated fuel remaining over
the destination (or the last waypoint prior to a gap) based upon
present fuel on board, present groundspeed and present fuel flow.
GND NM/LB(KG) - Ground nautical miles per pound (kg) of fuel.
The value shown is based on the present groundspeed and fuel
flow.
AIR NM/LB - Air nautical miles per pound (kg) of fuel. AIR
NM/LB(KG) is based on TAS and fuel flow.
HEADWIND/TAILWIND - The wind component in knots.
ESAD - Equivalent Still Air Distance. This is the distance the aircraft
would have flown since takeoff under zero wind conditions, or the air
miles flown.
TEMP - The temperature in terms of the difference between the
actual SAT (static air temperature) and the ISA standard SAT based
upon current altitude.
Section V
Operations
5-124 2423sv602
Change 1
FUEL Page 5
FUEL page 5 shows the fuel flow and fuel consumption in
pounds(kilograms) per hour for each of up to four engines
individually and cumulatively. The number of engines listed depends
upon the installation. The fuel flows shown are supplied by the
aircraft's fuel flow sensors.
FLOW - The fuel flow in pounds (kilogram) per hour. The values
shown are obtained from inputs from the engine fuel flow sensors. If
the FF for an engine drops to zero for four minutes, FAIL will be
displayed. The fail can be removed and input restored by placing
the cursor over the FAIL and pressing the BACK key and ENTER
key. If fuel flow input has returned (such as after engine shut down
and restart) it will be restored to normal operation.
Manual FUEL FLOW entries can be made. Line select keys are
used to position the cursor to enter fuel flows for the individual
engines. If a manual FF entry is made, (MAN) will be displayed.
The maximum FF entry for each engine is 20,000 pph. A manual FF
entry can be removed by pressing the BACK and then ENTER keys
while the cursor is over then FF entry field.
USED - The cumulative fuel used in pounds(kilograms) for each
engine and the total for all engines.
Manual FUEL USED entries may be made. Line select keys are
used to position the cursor to enter fuel used for the individual
engines. In the event of a power failure, the fuel used figures will
be corrected by an amount equal to the present fuel flow times the
duration of the power failure.
CAUTION: It should also be noted that if an APU is installed
and running, fuel flow will not be monitored by
the FMS, and fuel on board entries should be
updated as required to compensate.
Section V
Operations
2423sv602 5-125
Change 1
PERFORMANCE
PERF Page 1
The PERF page provides a synopsis of pertinent inflight
performance information. Some aircraft will utilize advanced
performance features, with pages for Takeoff, Climb/Cruise and
Landing data. If applicable, refer to the AIRCRAFT
PERFORMANCE SUPPLEMENT in the back of this section. This
PERF page is read-only; no entries can be made.
Section V
Operations
5-126 2423sv602
Change 1
Intentionally left blank.
Section V
Operations
2423sv602 5-127
Change 1
ABNORMAL PROCEDURES
Engine Failure/Shutdown
Should an engine fail or be shutdown in flight, a FUEL FLOW FAIL
message will be displayed on the FMS. In addition, the digital fuel
flow readout on the Fuel Flow page (FUEL page 5) will read FAIL for
that engine. The FUEL FLOW FAIL message and FAIL display will
also occur if the fuel flow sensor fails.
If the engine is still operating properly and a false message is
suspected, or if the engine was temporarily shutdown and restarted,
a reset may be attempted. With FUEL page 5 displayed, reset is
accomplished as follows:
1. Use the line select keys to position the cursor over the word
FAIL.
2. Press the BACK and then ENTER keys to reset the readout. If
the sensor or interface has failed, the FAIL indication will reoccur
after a 4 minute delay. If this occurs, manually input a fuel flow
over the word FAIL and press the ENTER key.
If the engine has been shutdown or has failed, the pilot should
manually enter a zero value for the fuel flow of the failed engine (in
place of the word FAIL). This will reinstate fuel related estimates
such as fuel over destination, specific range, etc., for the remainder
of the trip.
Section V
Operations
5-128 2423sv602
 
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