Table of Contents
1.0INTRODUCTIONANDDESCRIPTION
1.1PurposeofThisDocument
1.2GeneralSystemDescription
1.3UnitDescription
1.3.1ThrustControlComputer(TCCU)
1.3.2AFSController
1.3.3ThrustRatingPanel
1.3.4AnnunciatorUnit
1.3.5AutothrottleDisconnectSwitches
1.3.6Go-AroundInitiationSwitches
1.3.7ThrottleActuatorUnit
1.3.8ThrottleClutch
1.3.9Status/MaintenancePanel
1.4Interchangeability
1.5RegulatoryApproval
2.0INTERCHANGEABILITYSTANDARDS
2.1Introduction
2.2FormFactor,ConnectorsandIndexPinCoding
2.2.1ThrustRatingPanel
2.3Interwiring
2.4PowerCircuitry
2.4.1PrimaryPowerInput
2.4.2PowerControlCircuitry
2.4.3TheCommonGround
2.4.4TheACCommonCold
2.5EnvironmentalConditions
2.5.1ThermalInterfaceandDesign
2.6Weights
2.7SystemFunctionsandSignalCharacteristics
2.8GroundingandBonding
3.0SYSTEMDESIGNCONSIDERATIONS
3.1BasicPhilosophy
3.2ConfigurationAdaptiveDesign
3.3CentralizedAdministrativeControl
3.3.1AutothrottleController
3.3.2ThrustRatingPanel
3.4FunctionVsModes
3.5FunctionDescription
3.5.1ThrustRatingComputationandDisplay
3.5.2Autothrottle
3.5.3FlightEnvelopeProtection
3.5.4ThrustControlDuringNonStabilizedFlightPhases
3.5.5OtherOptionalCapabilities
3.5.6EngineTrimmingFunction
3.5.7TestandMaintenance
3.6ModeDescription
3.6.1AutothrottleModes
3.6.2ThrustRatingComputationModes
3.6.3AutothrottleandThrustRatingComputationMode
Compatibility
3.7AutothrottleArmCircuit
4.0STANDARDSIGNALCHARACTERISTICS
4.1GeneralAccuracyandOperatingRanges
4.1.1Resolution
4.1.2StandardSignals
4.1.3TheCommonGround
4.1.4TheACCommonCold
4.2SystemInputs
4.2.1IRSorAHRSBus
4.2.2AirDataSystemBus
4.2.3RadioAltimeterBus
4.2.4EngineSources
4.2.5ThrottleSources
4.2.6ClutchPowerInput
4.2.7AirframeSources
4.2.8FlightControlComputerSystem
4.2.9FlightManagementComputerSystem
4.2.10AutothrottleControllerOutputBus
4.2.11ThrustRatingPanelOutputBus
4.2.12FlightEnvelopeLimitDetection
4.2.13DiscreteStatus/ChangeOverSignalInput
4.3SystemOutputs
4.3.1ControlServoOutputs
4.3.2AutothrottleArmedSwitch
4.3.3ThrustRatingLimitBugOutput
4.3.4ExternalDiscreteWarning
4.3.5FlightEnvelopeLimitDetection
4.3.6DiscreteStatus/ChangeOverSignalOutput
4.3.7DragDemandSignal
5.0TCCSCONTROLLERDESIGN
5.1General
5.2AutothrottleController
5.3ThrustRatingPanel
5.3.1FormFactorsandConnector
5.3.2PanelIllumination
6.0PROVISIONSFORAUTOMATICTESTEQUIPMENT
6.1General
6.2UnitIdentification
6.2.1PinAllocation
6.2.2UseofATLASLanguage
ATTACHMENTS
0NotesApplicableToStandardInterwiring
1ThrustRatingControllerInterwiring
2ARINC703StandardInterwiring
2ADiagram
3EnvironmentalTestCategories
4TCCUInput/Output
5ThrustControlComputerUnit
6ThrustRatingPanel
7TCCBNRDigitalInputs
TCCBNRDigitalOutputs
TCCBCDDigitalOutputs
8IdenticalInput/OutputForCorrespondingUnitofTheTwo
Architectures
APPENDIX
1BibliographyOfTheAEECARINC703ThrustControlComputer
System(TCCS)Project Abstract
Describes the characteristics of the Thrust Control System (TCCS) portion of the larger Automatic Flight System (AFS). Also provides general and specific design guidance for the development and installation of a TCCS primarily for airline use.
