Garmin Flight Deck 100 Marine Instruments User Manual


 
190-00728-04 Rev. A
Embraer Prodigy
®
Flight Deck 100 Pilot’s Guide
485
AUTOMATIC FLIGHT CONTROL SYSTEM
DESCENT
Whileyingthearrivalprocedure,theaircraftisclearedfordescentinpreparationfortheapproachtoKCOS.
Three methods are presented for descent:
•FlightLevelChangedescent–FlightLevelChangeModecanbeusedtodescendtotheSelectedAltitudeata
constant airspeed. This descent method does not account for flight plan waypoint altitude constraints.
•Vertical Path Tracking descent –Vertical PathTracking Mode is usedto follow the vertical descentpath
denedintheGPSightplan.Altitudeconstraintscorrespondtowaypointsintheightplan.BeforeVNV
ightcontrolcanprovideverticalproleguidance,aVNVightplanmustbeenteredandenabled.
•Non-pathdescentinaVNVscenario–AVNVightplanisenteredandenabledhowever,PitchHold,Vertical
Speed,orFlightLevelChangeModecanbeusedtodescendtotheVNVTargetAltitudepriortoreachingthe
plannedTOD.FlightLevelChangeModeisusedintheexample.
Flight Level Change descent:
1) Select Flight Level Change Mode:
a) Using the ALT SEL Knob, set the Selected Altitude to 10,000 feet.
b) Press the
FLC
Key to activate Flight Level Change Mode. The annunciation ‘FLC’ appears in the AFCS Status Box
and the Airspeed Reference (above the Airspeed Indicator) defaults to the current aircraft airspeed. Selected
Altitude Capture Mode is armed automatically.
c) If desired press the SPD SEL Knob to change the Airspeed Reference units to Mach.
2) Use the SPD SEL Knob or push the CWS Button while hand-flying the aircraft to adjust the commanded
airspeed while maintaining the same power, or reduce power to allow descent in Flight Level Change Mode
while the autopilot maintains the current airspeed.
3) As the aircraft nears the Selected Altitude, the flight director transitions to Selected Altitude Capture Mode,
indicated by the green ‘ALTS’ annunciation flashing for up to 5 seconds.
The green ‘ALT’ annunciation flashes for up to 5 seconds upon reaching 50 feet from the Selected Altitude; the
autopilot transitions to Altitude Hold Mode and levels the aircraft.
Figure 7-38 FLC Descent
Cruise Altitude of 12,000 MSL
Selected Altitude of 10,000 MSL
ALT Mode
FLC Mode
ALT Mode
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