S76C+_G81_Avionics_v2.1

S76C+ S76C+ RecurrentRecurrent Training Training

V4.1 Oct ‘08

CHC Global OperationsCHC Global Operations

For Training PurposesFor Training Purposes

Not Necessarily Updated RegularlyNot Necessarily Updated Regularly G81 AvionicsG81 Avionics

S76C+ Recurrent Ground SchoolS76C+ Recurrent Ground School

2G81 AvionicsG81 Avionics

IntroductionIntroductionG71G71 .5 Hour.5 Hour

Warning & Caution SystemsWarning & Caution SystemsG72G72 1.0 Hours1.0 Hours

Electrical SystemElectrical SystemG73G73 0.5 Hour0.5 Hour

Fuel SystemsFuel SystemsG74G74 0.2 Hour0.2 Hour

Fire Protection SystemsFire Protection SystemsG75G75 0.2 Hour0.2 Hour

PowerplantPowerplantG76G76 1.5 Hours1.5 Hours

Powertrain & Rotor SystemsPowertrain & Rotor SystemsG77G77 0.2 Hour

Hydraulic SystemsHydraulic SystemsG78G78 0.2 Hour0.2 Hour

Flight Controls & AutoflightFlight Controls & AutoflightG79G79 1.0 Hour1.0 Hour

AvionicsAvionicsG81G81 1.0 Hours1.0 Hours


S76C+ Avionics SyllabusS76C+ Avionics Syllabus

Pitot Static System;Pitot Static System; AHRS;AHRS; EFIS Displays;EFIS Displays; Other RadiosOther Radios Switchology & ICS Boxes;Switchology & ICS Boxes; Standby Instruments;Standby Instruments; Miscellaneous.Miscellaneous.

Pitot Static System;Pitot Static System; AHRS;AHRS; EFIS Displays;EFIS Displays; Other RadiosOther Radios Switchology & ICS Boxes;Switchology & ICS Boxes; Standby Instruments;Standby Instruments; Miscellaneous.Miscellaneous.


S76C+ Pitot StaticS76C+ Pitot Static

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S76C+ AHRSS76C+ AHRS

Attitude & Heading Reference System (AHRS):Attitude & Heading Reference System (AHRS):– Combines multiple functions in one single unit:Combines multiple functions in one single unit:

Vertical Gyro;Vertical Gyro; Gyro Stabilized Magnetic Compass;Gyro Stabilized Magnetic Compass; 3 Rate Gyros.3 Rate Gyros.

– No moving parts involved – unit is strapped down to No moving parts involved – unit is strapped down to the aircraft and uses Fibre Optic Gyro technology;the aircraft and uses Fibre Optic Gyro technology;

– AHRS provides:AHRS provides: Pitch Angle;Pitch Angle; Roll Angle;Roll Angle; Magnetic Heading;Magnetic Heading; Angular Rates around aircraft axes. Angular Rates around aircraft axes.

Attitude & Heading Reference System (AHRS):Attitude & Heading Reference System (AHRS):– Combines multiple functions in one single unit:Combines multiple functions in one single unit:

Vertical Gyro;Vertical Gyro; Gyro Stabilized Magnetic Compass;Gyro Stabilized Magnetic Compass; 3 Rate Gyros.3 Rate Gyros.

– No moving parts involved – unit is strapped down to No moving parts involved – unit is strapped down to the aircraft and uses Fibre Optic Gyro technology;the aircraft and uses Fibre Optic Gyro technology;

– AHRS provides:AHRS provides: Pitch Angle;Pitch Angle; Roll Angle;Roll Angle; Magnetic Heading;Magnetic Heading; Angular Rates around aircraft axes. Angular Rates around aircraft axes.


S76C+ AHRSS76C+ AHRS

In the S76C+, it’s a Litef In the S76C+, it’s a Litef LCR-92LCR-92 AHRS: AHRS:– AHRUAHRU (Attitude & Heading Reference Unit): (Attitude & Heading Reference Unit):

Located in the nose avionics compartment.Located in the nose avionics compartment.

– Flux ValveFlux Valve - in the rear of the tailboom; - in the rear of the tailboom;– MSU CalPROMMSU CalPROM::

Compensates for flux valve errors and avionics tray misalignmentCompensates for flux valve errors and avionics tray misalignment Specifically set for each aircraft.Specifically set for each aircraft.

– Compass Control UnitCompass Control Unit:: Allows pilot to decouple AHRS from the Flux Valve;Allows pilot to decouple AHRS from the Flux Valve; Allows pilot to reset heading, such as for certain rig landings.Allows pilot to reset heading, such as for certain rig landings.

In the S76C+, it’s a Litef In the S76C+, it’s a Litef LCR-92LCR-92 AHRS: AHRS:– AHRUAHRU (Attitude & Heading Reference Unit): (Attitude & Heading Reference Unit):

Located in the nose avionics compartment.Located in the nose avionics compartment.

– Flux ValveFlux Valve - in the rear of the tailboom; - in the rear of the tailboom;– MSU CalPROMMSU CalPROM::

Compensates for flux valve errors and avionics tray misalignmentCompensates for flux valve errors and avionics tray misalignment Specifically set for each aircraft.Specifically set for each aircraft.

– Compass Control UnitCompass Control Unit:: Allows pilot to decouple AHRS from the Flux Valve;Allows pilot to decouple AHRS from the Flux Valve; Allows pilot to reset heading, such as for certain rig landings.Allows pilot to reset heading, such as for certain rig landings.


S76C+ AHRS ModesS76C+ AHRS Modes

The Litef LCR-92 AHRS operates in 4 modes:The Litef LCR-92 AHRS operates in 4 modes:– Ground Alignment;Ground Alignment;– In-Flight Alignment;In-Flight Alignment;– Slaved Mode;Slaved Mode;– DG ModeDG Mode

The Litef LCR-92 AHRS operates in 4 modes:The Litef LCR-92 AHRS operates in 4 modes:– Ground Alignment;Ground Alignment;– In-Flight Alignment;In-Flight Alignment;– Slaved Mode;Slaved Mode;– DG ModeDG Mode


AHRS Cockpit ProceduresAHRS Cockpit Procedures

Ground Alignment:Ground Alignment:– For OAT’s < 35For OAT’s < 35ººC, the AHRS easily self-aligns; C, the AHRS easily self-aligns; – This procedure takes This procedure takes 30-seconds30-seconds, more for high OATs;, more for high OATs;– AHRS measures the rotation of the earth in space -really! AHRS measures the rotation of the earth in space -really! – The aircraft should not be moved until the The aircraft should not be moved until the TRTR, , HDGHDG, and , and

ATTATT flags disappear from the EFIS displays. flags disappear from the EFIS displays. In-Flight Alignment:In-Flight Alignment:

– After a power loss in flight the AHRS can self-align;After a power loss in flight the AHRS can self-align;– Keep straight and level for Keep straight and level for 30-seconds30-seconds until flags out; until flags out;– Str & Lvl defined as Pitch Str & Lvl defined as Pitch ± ± 10º,10º, Roll Roll ± 5º,± 5º, Yaw Yaw < 1º/sec< 1º/sec..– Pilot can force a realignment by resetting AHRS CB.Pilot can force a realignment by resetting AHRS CB.

Ground Alignment:Ground Alignment:– For OAT’s < 35For OAT’s < 35ººC, the AHRS easily self-aligns; C, the AHRS easily self-aligns; – This procedure takes This procedure takes 30-seconds30-seconds, more for high OATs;, more for high OATs;– AHRS measures the rotation of the earth in space -really! AHRS measures the rotation of the earth in space -really! – The aircraft should not be moved until the The aircraft should not be moved until the TRTR, , HDGHDG, and , and

ATTATT flags disappear from the EFIS displays. flags disappear from the EFIS displays. In-Flight Alignment:In-Flight Alignment:

– After a power loss in flight the AHRS can self-align;After a power loss in flight the AHRS can self-align;– Keep straight and level for Keep straight and level for 30-seconds30-seconds until flags out; until flags out;– Str & Lvl defined as Pitch Str & Lvl defined as Pitch ± ± 10º,10º, Roll Roll ± 5º,± 5º, Yaw Yaw < 1º/sec< 1º/sec..– Pilot can force a realignment by resetting AHRS CB.Pilot can force a realignment by resetting AHRS CB.



Slaved Mode:Slaved Mode:– The AHRS automatically operates in Slaved The AHRS automatically operates in Slaved

Mode as long as it receives valid input data from Mode as long as it receives valid input data from the flux valve and that it is not switched manually the flux valve and that it is not switched manually to DG mode. to DG mode.

– AHRS Heading is synchronized with the flux AHRS Heading is synchronized with the flux valve, providing gyro-stabilized magnetic valve, providing gyro-stabilized magnetic compass heading information;compass heading information;

– Gyros provide short term reference to aid in Gyros provide short term reference to aid in dynamic flight conditions, and in turns.dynamic flight conditions, and in turns.

Slaved Mode:Slaved Mode:– The AHRS automatically operates in Slaved The AHRS automatically operates in Slaved

Mode as long as it receives valid input data from Mode as long as it receives valid input data from the flux valve and that it is not switched manually the flux valve and that it is not switched manually to DG mode. to DG mode.

– AHRS Heading is synchronized with the flux AHRS Heading is synchronized with the flux valve, providing gyro-stabilized magnetic valve, providing gyro-stabilized magnetic compass heading information;compass heading information;

– Gyros provide short term reference to aid in Gyros provide short term reference to aid in dynamic flight conditions, and in turns.dynamic flight conditions, and in turns.



DG Mode:DG Mode:– Pilot can manually switch into DG mode due to Pilot can manually switch into DG mode due to

local conditions;local conditions;– AHRS operates as a free directional gyro;AHRS operates as a free directional gyro;– Heading is subject to drift, estimated Heading is subject to drift, estimated @@ < 9< 9º/º/hourhour..– DGDG symbol displayed on the EHSI. symbol displayed on the EHSI.– If flux valve fails and the AHRS switches to DG If flux valve fails and the AHRS switches to DG

mode, a mode, a HDGHDG flag appears. flag appears.

DG Mode:DG Mode:– Pilot can manually switch into DG mode due to Pilot can manually switch into DG mode due to

local conditions;local conditions;– AHRS operates as a free directional gyro;AHRS operates as a free directional gyro;– Heading is subject to drift, estimated Heading is subject to drift, estimated @@ < 9< 9º/º/hourhour..– DGDG symbol displayed on the EHSI. symbol displayed on the EHSI.– If flux valve fails and the AHRS switches to DG If flux valve fails and the AHRS switches to DG

mode, a mode, a HDGHDG flag appears. flag appears.


S76

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Electronic Flight Instrument SystemElectronic Flight Instrument System Advantages are:Advantages are:

– Versatility;Versatility;– Built-In Redundancy;Built-In Redundancy;– Reliability.Reliability.

Dual EFIS system on each side:Dual EFIS system on each side:– Two Electronic Displays (ED-800s):Two Electronic Displays (ED-800s):

EADI - Electronic ADI;EADI - Electronic ADI; EHSI - Electronic HSI.EHSI - Electronic HSI.

– DC-811 Display Controller;DC-811 Display Controller;– Extra SwitchesExtra Switches

– Remote Instrument Controller:Remote Instrument Controller: Serves both sides;Serves both sides; Provides Course & Heading control.Provides Course & Heading control.

Electronic Flight Instrument SystemElectronic Flight Instrument System Advantages are:Advantages are:

– Versatility;Versatility;– Built-In Redundancy;Built-In Redundancy;– Reliability.Reliability.

Dual EFIS system on each side:Dual EFIS system on each side:– Two Electronic Displays (ED-800s):Two Electronic Displays (ED-800s):

EADI - Electronic ADI;EADI - Electronic ADI; EHSI - Electronic HSI.EHSI - Electronic HSI.

– DC-811 Display Controller;DC-811 Display Controller;– Extra SwitchesExtra Switches

– Remote Instrument Controller:Remote Instrument Controller: Serves both sides;Serves both sides; Provides Course & Heading control.Provides Course & Heading control.

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S76C+ S76C+ EADIEADI

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Airspeed Airspeed DisplayDisplay

Airspeed Airspeed DisplayDisplay

Altitude DisplayAltitude DisplayAltitude DisplayAltitude DisplayFlight DirectorFlight DirectorAnnunciatorsAnnunciators

Flight DirectorFlight DirectorAnnunciatorsAnnunciators

ADI DisplayADI DisplayADI DisplayADI Display


S76C+ S76C+ EADI: ILS ModeEADI: ILS Mode

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IAS Trend IAS Trend VectorVector

IAS Trend IAS Trend VectorVector



IAS Digital IAS Digital ReadoutReadout

IAS Digital IAS Digital ReadoutReadout

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Baro SetBaro SetBaro SetBaro Set

DH ReadoutDH ReadoutDH ReadoutDH Readout

RADALTRADALTRADALTRADALT

Glidepath Glidepath DeviationDeviation

Glidepath Glidepath DeviationDeviation

Collective CueCollective CueCollective CueCollective Cue

Altitude Altitude Trend Trend VectorVector

Altitude Altitude Trend Trend VectorVector

Ground Ground AwarenessAwareness

CueCue

Ground Ground AwarenessAwareness

CueCue

Digital ALT Digital ALT ReadoutReadout

Digital ALT Digital ALT ReadoutReadout


S76C+ S76C+ EADI: Declutter ModeEADI: Declutter Mode

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Declutter Mode removes Declutter Mode removes some of the symbols when some of the symbols when

pitch +30º / -20º, or roll ± 65ºpitch +30º / -20º, or roll ± 65º

Declutter Mode removes Declutter Mode removes some of the symbols when some of the symbols when

pitch +30º / -20º, or roll ± 65ºpitch +30º / -20º, or roll ± 65º


S76C+ S76C+ EHSIEHSI

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VSI DisplayVSI DisplayVSI DisplayVSI Display

HSI DisplayHSI DisplayHSI DisplayHSI Display


S76C+ S76C+ EHSIEHSI

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Nav SourceNav SourceNav SourceNav Source

Course / Course / Desired TrackDesired Track


Bearing SourceBearing SourceBearing SourceBearing Source

DME DistanceDME DistanceDME DistanceDME Distance

Heading BugHeading BugHeading BugHeading Bug Compass SyncCompass SyncCompass SyncCompass SyncHeading Bug Heading Bug

SelectSelectHeading Bug Heading Bug

SelectSelect

Vertical Speed Vertical Speed Pointer & ValuePointer & ValueVertical Speed Vertical Speed Pointer & ValuePointer & Value

Groundspeed / Groundspeed / Time to Go / Time to Go /

Elapsed TimeElapsed Time



Wind DisplayWind DisplayWind DisplayWind Display


DC-811 Display ControllerDC-811 Display ControllerChanging EHSI to Arc ModeChanging EHSI to Arc Mode

Press for Press for Expanded Expanded

90º Arc EHSI90º Arc EHSI

Press for Press for Expanded Expanded

90º Arc EHSI90º Arc EHSI


S76C+ S76C+ EHSI – Arc ModeEHSI – Arc Mode

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Compass SyncCompass SyncCompass SyncCompass Sync

Heading Bug Heading Bug SelectSelect

Heading Bug Heading Bug SelectSelect

Vertical Speed Vertical Speed Pointer & ValuePointer & ValueVertical Speed Vertical Speed Pointer & ValuePointer & Value






Heading BugHeading BugHeading BugHeading Bug

Bearing SourceBearing SourceBearing SourceBearing Source




S76C+ S76C+ EHSI – Map ModeEHSI – Map Mode

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Compass SyncCompass SyncCompass SyncCompass Sync

Outbound Outbound Course from Course from

VORVOR

Outbound Outbound Course from Course from

VORVOR

Range ScaleRange ScaleRange ScaleRange Scale

Inbound Course Inbound Course to VORto VOR

Inbound Course Inbound Course to VORto VOR


Heading BugHeading BugHeading BugHeading Bug

VOR or WPT VOR or WPT SymbolSymbol

VOR or WPT VOR or WPT SymbolSymbol



Lateral Lateral Deviation Scale Deviation Scale

& Pointer& Pointer

Lateral Lateral Deviation Scale Deviation Scale

& Pointer& Pointer


Either Sw Fully Either Sw Fully Counterclockwise Counterclockwise

for Composite for Composite ModeMode

Either Sw Fully Either Sw Fully Counterclockwise Counterclockwise

for Composite for Composite ModeMode

DC-811 Display ControllerDC-811 Display ControllerChanging EFIS to Composite ModeChanging EFIS to Composite Mode


EHSI – Composite ModeEHSI – Composite Mode

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Decision HeightDecision Height

Vertical SpeedVertical Speed

Altitude ScaleAltitude Scale

Altitude Altitude ReadoutReadout

Heading Bug & Heading Bug & Heading Select Heading Select

ReadoutReadoutLateral Lateral

Deviation Scale Deviation Scale & Pointer& Pointer

ADI DisplayADI Display

Nav SourceNav Source

Airspeed ScaleAirspeed Scale

Course / Course / Desired TrackDesired Trackw TO/FROMw TO/FROM

Heading Tape w Heading Tape w Course / DTK Course / DTK

PointerPointer


Extra SwitchesExtra Switches

IIDS Reversion IIDS Reversion Button at different Button at different locations on either locations on either

sideside

IIDS Reversion IIDS Reversion Button at different Button at different locations on either locations on either

sideside


S76C+ S76C+ ICS BoxICS Box

ICS & ICS & Radio Radio Master Master

VolumesVolumes

ICS & ICS & Radio Radio Master Master

VolumesVolumes

ICS VOX ICS VOX Sensitivity Sensitivity

CCW for more!CCW for more!

ICS VOX ICS VOX Sensitivity Sensitivity

CCW for more!CCW for more!

Foot Sw Foot Sw ControllerControllerFoot Sw Foot Sw

ControllerController

RadiosRadiosOut to ListenOut to Listen

RadiosRadiosOut to ListenOut to Listen

RadiosRadiosIn to XmitIn to XmitRadiosRadios

In to XmitIn to Xmit


S76C+ S76C+ Standby ADIStandby ADI

Mode DisplayMode DisplayMode DisplayMode Display

OBS / Press to OBS / Press to Auto Center VORAuto Center VOROBS / Press to OBS / Press to

Auto Center VORAuto Center VORCaged when OFFCaged when OFFCaged when OFFCaged when OFF

Push to select Push to select Nav ModeNav Mode

Push to select Push to select Nav ModeNav Mode

Push 4 sec to Push 4 sec to Declutter ADIDeclutter ADIPush 4 sec to Push 4 sec to Declutter ADIDeclutter ADI


BF Goodrich / L3 Systems ADI-335 Standby ADI;BF Goodrich / L3 Systems ADI-335 Standby ADI; self-contained 3-inch unit with:self-contained 3-inch unit with:

– en route VOR/DME & ILS/BC displays en route VOR/DME & ILS/BC displays – appropriate cross-pointersappropriate cross-pointers– OBS (with Auto-Centering) and mode selectors;OBS (with Auto-Centering) and mode selectors;– unique eight character LED display for:unique eight character LED display for:

Mode, Radial, To/From, & Selected Course presentation. Mode, Radial, To/From, & Selected Course presentation.

Gyro utilizes a mechanical erection system with Gyro utilizes a mechanical erection system with manual “fast erect” caging;manual “fast erect” caging;

Pull Caging Knob when shutting off unit.Pull Caging Knob when shutting off unit.

BF Goodrich / L3 Systems ADI-335 Standby ADI;BF Goodrich / L3 Systems ADI-335 Standby ADI; self-contained 3-inch unit with:self-contained 3-inch unit with:

– en route VOR/DME & ILS/BC displays en route VOR/DME & ILS/BC displays – appropriate cross-pointersappropriate cross-pointers– OBS (with Auto-Centering) and mode selectors;OBS (with Auto-Centering) and mode selectors;– unique eight character LED display for:unique eight character LED display for:

Mode, Radial, To/From, & Selected Course presentation. Mode, Radial, To/From, & Selected Course presentation.

Gyro utilizes a mechanical erection system with Gyro utilizes a mechanical erection system with manual “fast erect” caging;manual “fast erect” caging;

Pull Caging Knob when shutting off unit.Pull Caging Knob when shutting off unit.

S76C+ S76C+ Standby ADIStandby ADI


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ELCan you fly back from the Can you fly back from the

rig with an AHRS failure?rig with an AHRS failure?

34G81- Who reads these module chapter markers anyway?G81- Who reads these module chapter markers anyway?

Avionics Q&AsAvionics Q&As

Avionics Q&AAvionics Q&A


EADI: the altitude trend vector indicates?EADI: the altitude trend vector indicates?a.a. The current altitudes rate & predicted altitude The current altitudes rate & predicted altitude

expected in 10 secondsexpected in 10 seconds

b.b. The average altitudes maintained over 30 The average altitudes maintained over 30 seconds & predicted alt expected in 60 seconds & predicted alt expected in 60 secondsseconds

c.c. The current altitudes rate & predicted altitude The current altitudes rate & predicted altitude expected in 6 secondsexpected in 6 seconds

d.d. The average altitudes maintained over 20 The average altitudes maintained over 20 seconds & predicted alt expected in 60 seconds & predicted alt expected in 60 secondsseconds



EHSI: the vertical speed indicator (VSI EHSI: the vertical speed indicator (VSI pointer) has a maximum range of?pointer) has a maximum range of?

a.a. ± 4500 feet± 4500 feet

b.b. ± 4200 feet± 4200 feet

c.c. ± 3200 feet± 3200 feet

d.d. ± 5500 feet± 5500 feet



EADI: the (amber tape) ground awareness EADI: the (amber tape) ground awareness indicator displays when the radio altimeter indicator displays when the radio altimeter is below?is below?

a.a. 200 feet to warn of ground proximity200 feet to warn of ground proximity

b.b. 100 feet to warn of ground proximity100 feet to warn of ground proximity

c.c. 500 feet to warn of ground proximity500 feet to warn of ground proximity

d.d. 300 feet to warn of ground proximity300 feet to warn of ground proximity



EADI: the red maximum operating velocity EADI: the red maximum operating velocity indicator Vindicator VMOMO moves up and down the IAS moves up and down the IAS

scale to indicate?scale to indicate?a.a. The maximum operating speedThe maximum operating speed

b.b. The maximum operating speed power The maximum operating speed power offoff

c.c. The maximum operating speed minus The maximum operating speed minus 10 kts10 kts

d.d. None of the aboveNone of the above



EADI : the magenta airspeed trend vector, EADI : the magenta airspeed trend vector, indicates at what airspeed given current indicates at what airspeed given current steady-state flight condition?steady-state flight condition?

a.a. The aircraft will arrive in 12 secondsThe aircraft will arrive in 12 seconds

b.b. The aircraft will arrive in 6 secondsThe aircraft will arrive in 6 seconds

c.c. The aircraft will arrive in 30 secondsThe aircraft will arrive in 30 seconds

d.d. The aircraft will arrive in 15 secondsThe aircraft will arrive in 15 seconds



The standby altimeter’s static source is The standby altimeter’s static source is located where?located where?

a.a. Co-located with IIDS probes under noseCo-located with IIDS probes under nose

b.b. Balance of 2 tailboom static portsBalance of 2 tailboom static ports

c.c. Inside cockpit near gear blowdown Inside cockpit near gear blowdown indicatorindicator

d.d. The left pitot static probeThe left pitot static probe



AHRS: During start up and stabilization AHRS: During start up and stabilization the AHRS fiber optic gyros (FOG) the AHRS fiber optic gyros (FOG) measures?measures?

a.a. Magnetic field as the referenceMagnetic field as the reference

b.b. Standby Vertical gyro as the referenceStandby Vertical gyro as the reference

c.c. Averages both Mag Field and Vertical Averages both Mag Field and Vertical Gyro Gyro

d.d. Rotation speed of the earth as referenceRotation speed of the earth as reference



Radar Altimeters: the C+ has the AVAD Radar Altimeters: the C+ has the AVAD programmed to make the following audio calls?programmed to make the following audio calls?

a.a. 1000 feet, 500 feet and a 100-foot call 1000 feet, 500 feet and a 100-foot call regardless of bug settingregardless of bug setting

b.b. 2000 feet, 1000 feet, 500 feet and a 100-foot 2000 feet, 1000 feet, 500 feet and a 100-foot call regardless of bug setting call regardless of bug setting

c.c. 2000 feet, 500 feet and a 100-foot call 2000 feet, 500 feet and a 100-foot call regardless of bug settingregardless of bug setting

d.d. 2000 feet, 1000 feet, 500 feet and a 200-foot 2000 feet, 1000 feet, 500 feet and a 200-foot call regardless of bug settingcall regardless of bug setting

Let’s take a break? Let’s take a break?

For Training PurposesFor Training Purposes

Not Necessarily Updated RegularlyNot Necessarily Updated Regularly

S76C+_G81_Avionics_v2.1

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Transcript of S76C+_G81_Avionics_v2.1