Table of Contents
1.0INTRODUCTIONANDDESCRIPTION
1.1PurposeofthisDocument
1.2GeneralSystemDescription
1.3ElementsofAutomaticFlightSystem
1.4UnitDescription
1.4.1FlightControlComputer(FCCU)
1.4.2Controller
1.4.3AnnunciatorUnit
1.4.4CWSForceSensor
1.4.5WheelDisconnectButton
1.4.6ThrottleActuatorUnit
1.4.7Status/MaintenancePanel
1.5Interchangeability
1.6RegulatoryApproval
2.0INTERCHANGEABILITYSTANDARDS
2.1FormFactors,Connectors,andIndexPinCoding
2.1.1FlightControlComputer(FCCU)
2.1.1.1Mark1FCCU(Dual-DualArchitecture)
2.1.1.2Mark2FCCU(TriplexArchitecture)
2.1.2Controller
2.1.3AnnunciatorUnit
2.1.4CWSForceSensor
2.1.5Status/MaintenancePanel
2.2Interwiring
2.3SystemFunctionsandSignalCharacteristics
2.4PowerCircuitry
2.5EnvironmentalConditions
2.6Cooling-General
2.6.1FCCUCooling
2.6.2ControllerCooling
2.7GroundingandBonding
3.0SYSTEMDESIGNCONSIDERATIONS
3.1BasicPhilosophy
3.1.1"AutomationofAutopilot"
3.1.2AutoFlightSystemDefinition
3.1.3BasicAutopilot
3.1.4"Two-Box"Concept
3.1.5Autoland
3.1.6MaintenanceImpactDuetoCategoryThree
3.2ConfigurationAdaptiveDesign
3.3CentralizedAdministrativeControl
3.4FunctionVs.Modes
3.4.1FunctionalCapability
3.4.2AFSOperatingModes
3.5IndividualModeDescription
3.6IndividualFunctionDescription
3.6.1FCCSFunctions
3.6.2FACSFunctions
3.6.3FMCSandExpandedFCCSFunctions
3.7StatusWarning
3.8FCCSCommandAuthority
3.9RedundancyControl
3.9.1Channelization/FailureProtocol
3.9.2OperationWithInoperativeFMCS
3.10NoInputforSDMU
4.0STANDARDSIGNALCHARACTERISTICS
4.1GeneralAccuracyandOperatingRanges
4.1.1Resolution
4.1.2StandardSignals
4.1.3TheCommonGround
4.1.4TheACCommonCold
4.1.5ShieldGrounding
4.2SystemInputs
4.2.1InertialReferenceSystem
4.2.2DigitalAirDataSystemBus
4.2.3ILSReceiver
4.2.4RadioAltimeter
4.2.5AirFrameSources
4.2.6FlightManagementComputerSystemOutput
4.2.7Non-AllocatedDiscrete
4.2.8GlareShieldController
4.2.9ThrustControlComputerSystem(TCCS)
4.2.10FlightAugmentationComputer(FAC)
4.2.11DME
4.2.12Instruments
4.2.13MaintenancePanel
4.2.14INS/OMEGA
4.2.15GroundSpeed
4.3SystemOutputs
4.3.1ControlServoOutputs
4.3.2FlightDirectorOutputs
4.3.3StatusWarning
4.3.4ModeAdvisory(toFMC)
5.0CONTROLFUNCTIONDESIGN
5.1General
5.2PowerSupply
5.3Cooling
5.4PanelIllumination
5.5GuidanceforMechanicalDesign
5.6ModeAnnunciation
5.7ControlFunctions
5.7.1FlightDirector
5.7.2AutopilotEngage/Disengage
5.7.3AutothrottleArm
5.7.4TurbulenceMode
5.7.5AirspeedHold
5.7.6AirspeedSelect
5.7.7MachHold
5.7.8MachSelect
5.7.9HeadingSelect
5.7.10BankAngleLimitSelect
5.7.11AltitudeHold
5.7.12AltitudeSelect
5.7.13VerticalSpeedSelect
5.7.14VerticalSpeedHold
5.7.15HorizontalNavigation
5.7.16VerticalNavigation
5.7.17LandFunctions
5.7.18CourseSelect
5.7.19RunwayHeadingSelect
5.7.20N1/EPRSelect
5.7.21ControlWheelSteering
5.8ControllerDigitalDataInputsandOutputs
5.8.1ControllerDigitalDataInputPorts
5.8.2ControllerDigitalDataOutputPorts
5.8.3InformationSummary
5.8.4ControllerDiscreteControlWires
6.0ANNUNCIATORUNITDESIGN
6.1General
6.2FormFactorsandConnector
6.3Cooling
7.0FLIGHTCONTROLCOMPUTERUNITDESIGN
8.0STATUS/MAINTENANCEPANEL
8.1PhysicalDescription
8.2FunctionalDescription
8.3Interface
9.0BITE
9.1BITERecommendationsforAFS
9.2.1General
9.2.2MythicalStandardAFS
9.2.3ResurgentFailOperationalAFSConfigurations
9.3AFSMaintenanceCycle
9.4ConfidenceLevel
9.4.1"Non-Interactive"BITE
9.4.2ExtensionofBITE
9.4.3SpecialProblems
9.5CategoriesofAFSBITE
9.5.1AutomaticBITE
9.5.2Semi-AutomaticBITE
9.5.3ManualBITE
9.6WhoBITESWhat?
9.7OperationofSensorSelf-Test
9.8SystemInterfaceChecking
9.9DedicatedSensorsandActuators
9.10GroundTests
9.10.1PersonnelHazards
9.10.2"Preconditioning"andManualParticipation
9.10.3LimitedTesting
9.10.4CockpitOperation
9.10.5GuidanceforFaultIsolation
9.10.6CheckingMultiplexSystemVoting
9.10.7GuidanceforSystemVerification
9.11MaintenanceBITE
9.11.1End-to-EndDynamicCheck
9.11.2CheckingforIntermittentFailures
9.12BITEAnalysis
9.13AFSBITEFailure
9.14SophisticatedMaintenance
10.0ASSUMEDFACSCHARACTERISTICS
10.1General
10.2StandardElectricalInterface
10.3FACSFunctions
11.0FLIGHTCONTROLSYSTEMWIRESEPARATIONCRITERIA
Attachments
1AFSArchitecture
2NotesApplicabletoStandardInterwiring
2AStandardInterwiring-Dual-DualArchitecture
2BStandardInterwiring-TriplexArchitecture
3FlightAugmentationComputerSystemCharacteristics
4FCCUConnectorLocations
5ControllerFaceView
6EnvironmentalTestCategories
7SystemsInputs
8SystemOutputs
9BITEControlsandDisplays
9-1MythicalStandardsAFSConfiguration
9-2ResurgentTripleAFSConfiguration
9-3TypicalDual-DualAFSConfiguration
9-4MaintenanceCycleandGeddie'sTriangle
9-5TypicalFunctionstoBITE
10Status/MaintenancePanel
11AnnunciatorUnitDetails
12LocationofVertical/LateralComputations
13LocationofThrustModeComputations
14Engage/DisengageSwitching
Appendices
1BibliographyoftheAEECARINC701FlightControl
ComputerSystemProject
2GuidanceforSoftwareDesignandDocumentation Abstract
Covers the characteristics of a FCCS within an Automatic Flight System. The FCCS is intended to provide autoland capability for commercial aircraft. It also provides design guidance for the development and installation of a FCCS.
