A320 FLT CTRL Laws &. Protections | Berlin, Dezember 2012 | POC

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsGeneralNormal LawAlternate LawAbnormal Attitude LawAlternate Law (without reduced protection)Direct LawMechanical BackupPositive Static StabilityFLT CTRL Law reconfiguration acc. FCOM 1.27.30Finish Presentation

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsNormal LawNormal LawAlternate LawAbnormal Attitude LawAlternate Law (without reduced protection)Direct LawMechanical BackupPositive Static StabilityFLT CTRL Law reconfiguration acc. FCOM 1.27.30Finish Presentation

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsNormal Law

Ground ModeFlight ModeFlare ModePitch ControlDirect relationship between sidestick deflection and elevator deflectionno auto trimLoad factor demandAuto trim availableat 30ft in descent the system reduces attitude by 2 over 8 secondsLateral ControlSidestick commands aileron and roll spoiler depending of speedAfter TakeOff smooth transition to Flight ModeRoll rate demandmax. 15/secSame as in Flight ModeAfter touch down smooth transition to Ground Mode

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsAlternate LawNormal LawAlternate LawAbnormal Attitude LawAlternate Law (without reduced protection)Direct LawMechanical BackupPositive Static StabilityFLT CTRL Law reconfiguration acc. FCOM 1.27.30Finish Presentation

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsAlternate Law

Ground ModeFlight ModeLanding ModePitch ControlDirect relationship between sidestick deflection and elevator deflectionno auto trim5sec after landing activeLoad factor demand with less protectionsAuto trim available

At Gear down Flight Mode Direct LawDirect stick to-elevator-relationshipLateral ControlSidestick commands aileron and roll spoiler depending of speedAfter TakeOff smooth transition to Flight ModeRoll directYaw Damper available with rudder deflection limited to +/-5Auto Turn Coordination lostSame as in Flight ModeAfter touch down smooth transition to Ground Mode

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsAlternate Law without reduced protectionNormal LawAlternate LawAbnormal Attitude LawAlternate Law (without reduced protection)Direct LawMechanical BackupPositive Static StabilityFLT CTRL Law reconfiguration acc. FCOM 1.27.30Finish Presentation

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsAlternate Law without reduced protection

Ground ModeFlight ModeLanding ModePitch ControlDirect relationship between sidestick deflection and elevator deflectionno auto trim5sec after landing activeLoad factor demand with less protectionsAuto trim availableNo High Speed StabilityNo Low Speed StabilityOnly Load Factor LimitationAt Gear down Flight Mode Direct LawDirect stick to-elevator-relationshipLateral ControlSidestick commands aileron and roll spoiler depending of speedAfter TakeOff smooth transition to Flight ModeRoll directYaw Damper available with rudder deflection limited to +/-5Same as in Flight ModeAfter touch down smooth transition to Ground Mode

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsDirect LawNormal LawAlternate LawAbnormal Attitude LawAlternate Law (without reduced protection)Direct LawMechanical BackupPositive Static StabilityFLT CTRL Law reconfiguration acc. FCOM 1.27.30Finish Presentation

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsDirect LawDirect Law is the lowest level of computer flight control.Pilot inputs are sent to the control surfaces unmodified.Because of the large number of failures required to degrade to Direct Law, it is unlikely to occur during normal flight.It is most likely to be encountered when the landing gear is lowered after an inflight degradation to Alternate Law.

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsDirect Law

Ground ModeFlight ModeFlare ModePitch Controldirect stick to elevator relationshipDirect stick to elevator relationship acc. slat/flap positionNo protectionsNo A-Floor activeNo Flare ModeLateral ControlDirect stick to surface relationship Direct stick to surface relationship acc. slat/flap positionMax. roll rate: clean 30/sec slats ext. 25/secYaw mechanicalNo yaw dampingNo Auto Turn CoordinationNo auto trimNo Flare Mode

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsMechanical BackupAlternate LawAbnormal Attitude LawMechanical BackupNormal LawAlternate Law (without reduced protection)Direct LawPositive Static StabilityFLT CTRL Law reconfiguration acc. FCOM 1.27.30Finish Presentation

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsMechanical BackupIn the worst case of failures, such as complete loss of flight control computer power supply the aircraft will revert to Mechanical Backup Mode.

Ground ModeFlight ModeFlare ModePitch ControlNo Ground ModePitch control manually by applying trim to the THS

No Flare ModeLateral ControlNo Ground ModePitch control manually by applying trim to the THSNo Flare Mode

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsMechanical BackupIn most cases (e.g. by resetting the flight control computers) the flight crew will be able to recover from mechanical backup to either alternate or direct law depending on type of failure.

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & Protections Abnormal Attitude LawNormal LawAlternate LawAbnormal Attitude LawAlternate Law (without reduced protection)Direct LawMechanical BackupPositive Static StabilityFLT CTRL Law reconfiguration acc. FCOM 1.27.30Finish Presentation

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & Protections Abnormal Attitude LawIf the aircraft under extreme conditions leaves the protected envelope (e.g. flipover by severe turbulence), the Abnormal Attitude Law becomes active.That conditions are:Pitch > 50 or < 30,Bank > 125AOA > 30 or < 10 (A320), 440kts or < 70-90kts (depending on pitch)Mach > 0.91

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & Protections Abnormal Attitude Law

Ground ModeFlight ModeFlare ModePitch ControlNo Ground ModeLoad factor demand without protections except Load Factor ProtectionNo Auto TrimNo Flare ModeLateral ControlNo Ground ModeFull authority Direct LawYaw mechanicalAuto Turn Coordination lostNo Flare Mode

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & Protections Abnormal Attitude LawPast recovery from Abnormal Attitude:

Ground ModeFlight ModeFlare ModePitch ControlNo Ground ModeLoad factor demand without protectionsAuto trim availableNo Flare ModeLateral ControlNo Ground ModeFull authority Direct LawYaw Alternate LawRoll directYaw Damper available with rudder deflection limited to +/-5Auto Turn Coordination lostNo Flare Mode

Prsentationskennung

DIRECT DIRECT MECHANICALPrsentationskennung*A320 FLT CTRL Laws & ProtectionsFLT CTRL Law ReconfigurationPITCH: ROLL : YAW :Double ADR fail (2nd not self detected VCAS or M disagree)Triple ADR failDouble SFCC Slat channel fail (G+B)Double HYD fail (G+B)Double self detected ADR failureDouble ADR fail (2nd not self detected or AOA disagreeDouble ELAC failDouble Aileron failTHS jammedELAC 2 + Blue HYD failELAC 1 + Green HYD failELAC 1 + Yellow HYD failOne Elevator failDouble self detected IR failDouble FAC failDouble HYD fail (G+Y)Yaw damper failEMER ELEC from RAT (after FAC 1 reset)Loss of all spoilersTriple SEC failEMER ELEC CONFIG (on batteries)Triple IR failCrew Ident failed IR action:switch off faulty IR reset ELAC 1 + 2Double IR fail (2nd not self detected)RA fail, when L/G down or in CONF2 if both LGCIU failedPITCH : ROLL : YAW :ALT (REDUCED PROT) DIRECT MECHANICALNORMAL NORMAL NORMALALT (REDUCED PROT) DIRECT ALTDIRECT DIRECT ALTacc: FCOM 1.27.30 FCOM-NG/DSC/27/30ALT (NO PROT) DIRECT ALT

Prsentationskennung

ALT (REDUCED PROT) DIRECT MECHANICALDIRECT DIRECT MECHANICALPrsentationskennung*A320 FLT CTRL Laws & ProtectionsFLT CTRL Law ReconfigurationPITCH: ROLL : YAW :Double ADR fail (2nd not self detected VCAS or M disagree)Triple ADR failDouble SFCC Slat channel fail (G+B)Double HYD fail (G+B)Double self detected ADR failureDouble ADR fail (2nd not self detected or AOA disagreeDouble ELAC failDouble Aileron failTHS jammedELAC 2 + Blue HYD failELAC 1 + Green HYD failELAC 1 + Yellow HYD failOne Elevator failDouble self detected IR failDouble FAC failDouble HYD fail (G+Y)Yaw damper failEMER ELEC from RAT (after FAC 1 reset)Loss of all spoilersTriple SEC failEMER ELEC CONFIG (on batteries)Triple IR failCrew Ident failed IR action:switch off faulty IR reset ELAC 1 + 2Double IR fail (2nd not self detected)RA fail, when L/G down or in CONF2 if both LGCIU failedPITCH : ROLL : YAW :NORMAL NORMAL NORMALALT (REDUCED PROT) DIRECT ALTDIRECT DIRECT ALTacc: FCOM 1.27.30 FCOM-NG/DSC/27/30ALT (NO PROT) DIRECT ALT

Prsentationskennung

ALT (REDUCED PROT) DIRECT MECHANICALDIRECT DIRECT MECHANICALPrsentationskennung*A320 FLT CTRL Laws & ProtectionsFLT CTRL Law ReconfigurationPITCH: ROLL : YAW :Double ADR fail (2nd not self detected VCAS or M disagree)Triple ADR failDouble SFCC Slat channel fail (G+B)Double HYD fail (G+B)Double self detected ADR failureDouble ADR fail (2nd not self detected or AOA disagreeDouble ELAC failDouble Aileron failTHS jammedELAC 2 + Blue HYD failELAC 1 + Green HYD failELAC 1 + Yellow HYD failOne Elevator failDouble self detected IR failDouble FAC failDouble HYD fail (G+Y)Yaw damper failLoss of all spoilersTriple SEC failTriple IR failCrew Ident failed IR action:switch off faulty IR reset ELAC 1 + 2Double IR fail (2nd not self detected)RA fail, when L/G down or in CONF2 if both LGCIU failedPITCH : ROLL : YAW :NORMAL NORMAL NORMALALT (REDUCED PROT) DIRECT ALTDIRECT DIRECT ALTacc: FCOM 1.27.30 FCOM-NG/DSC/27/30ALT (NO PROT) DIRECT ALTEMER ELEC from RAT (after FAC 1 reset)EMER ELEC CONFIG (on batteries)

Prsentationskennung

ALT (REDUCED PROT) DIRECT MECHANICALDIRECT DIRECT MECHANICALPrsentationskennung*A320 FLT CTRL Laws & ProtectionsFLT CTRL Law ReconfigurationPITCH: ROLL : YAW :Double ADR fail (2nd not self detected VCAS or M disagree)Triple ADR failDouble SFCC Slat channel fail (G+B)Double HYD fail (G+B)Double self detected ADR failureDouble ADR fail (2nd not self detected or AOA disagreeDouble ELAC failDouble Aileron failTHS jammedELAC 2 + Blue HYD failELAC 1 + Green HYD failELAC 1 + Yellow HYD failOne Elevator failDouble self detected IR failDouble FAC failDouble HYD fail (G+Y)Yaw damper failLoss of all spoilersTriple SEC failTriple IR failRA fail, when L/G down or in CONF2 if both LGCIU failedPITCH : ROLL : YAW :NORMAL NORMAL NORMALALT (REDUCED PROT) DIRECT ALTDIRECT DIRECT ALTacc: FCOM 1.27.30 FCOM-NG/DSC/27/30ALT (NO PROT) DIRECT ALTEMER ELEC from RAT (after FAC 1 reset)EMER ELEC CONFIG (on batteries)Double IR fail (2nd not self detected)Crew Ident failed IR action:switch off faulty IR reset ELAC 1 + 2

Prsentationskennung

DIRECT DIRECT MECHANICALPrsentationskennung*A320 FLT CTRL Laws & ProtectionsFLT CTRL Law ReconfigurationPITCH: ROLL : YAW :Double ADR fail (2nd not self detected VCAS or M disagree)Triple ADR failDouble SFCC Slat channel fail (G+B)Double HYD fail (G+B)Double self detected ADR failureDouble ADR fail (2nd not self detected or AOA disagreeDouble ELAC failDouble Aileron failTHS jammedELAC 2 + Blue HYD failELAC 1 + Green HYD failELAC 1 + Yellow HYD failOne Elevator failDouble self detected IR failDouble FAC failDouble HYD fail (G+Y)Yaw damper failEMER ELEC from RAT (after FAC 1 reset)Loss of all spoilersTriple SEC failEMER ELEC CONFIG (on batteries)Triple IR failCrew Ident failed IR action:switch off faulty IR reset ELAC 1 + 2Double IR fail (2nd not self detected)RA fail, when L/G down or in CONF2 if both LGCIU failedPITCH : ROLL : YAW :NORMAL NORMAL NORMALALT (REDUCED PROT) DIRECT ALTDIRECT DIRECT ALTacc: FCOM 1.27.30 FCOM-NG/DSC/27/30ALT (NO PROT) DIRECT ALTALT (REDUCED PROT) DIRECT MECHANICAL

Prsentationskennung

ALT (REDUCED PROT) DIRECT MECHANICALPrsentationskennung*A320 FLT CTRL Laws & ProtectionsFLT CTRL Law ReconfigurationPITCH: ROLL : YAW :Double ADR fail (2nd not self detected VCAS or M disagree)Triple ADR failDouble SFCC Slat channel fail (G+B)Double HYD fail (G+B)Double self detected ADR failureDouble ADR fail (2nd not self detected or AOA disagreeDouble ELAC failDouble Aileron failTHS jammedELAC 2 + Blue HYD failELAC 1 + Green HYD failELAC 1 + Yellow HYD failOne Elevator failDouble self detected IR failDouble FAC failDouble HYD fail (G+Y)Yaw damper failEMER ELEC from RAT (after FAC 1 reset)Loss of all spoilersTriple SEC failEMER ELEC CONFIG (on batteries)Triple IR failCrew Ident failed IR action:switch off faulty IR reset ELAC 1 + 2Double IR fail (2nd not self detected)RA fail, when L/G down or in CONF2 if both LGCIU failedPITCH : ROLL : YAW :NORMAL NORMAL NORMALALT (REDUCED PROT) DIRECT ALTDIRECT DIRECT ALTacc: FCOM 1.27.30 FCOM-NG/DSC/27/30ALT (NO PROT) DIRECT ALTDIRECT DIRECT MECHANICAL

Prsentationskennung

DIRECT DIRECT MECHANICALALT (REDUCED PROT) DIRECT MECHANICALPrsentationskennung*A320 FLT CTRL Laws & ProtectionsFLT CTRL Law ReconfigurationPITCH: ROLL : YAW :Double ADR fail (2nd not self detected VCAS or M disagree)Triple ADR failDouble SFCC Slat channel fail (G+B)Double HYD fail (G+B)Double self detected ADR failureDouble ADR fail (2nd not self detected or AOA disagreeDouble ELAC failDouble Aileron failTHS jammedELAC 2 + Blue HYD failELAC 1 + Green HYD failELAC 1 + Yellow HYD failOne Elevator failDouble self detected IR failDouble FAC failDouble HYD fail (G+Y)Yaw damper failEMER ELEC from RAT (after FAC 1 reset)Loss of all spoilersTriple SEC failEMER ELEC CONFIG (on batteries)Triple IR failCrew Ident failed IR action:switch off faulty IR reset ELAC 1 + 2Double IR fail (2nd not self detected)RA fail, when L/G down or in CONF2 if both LGCIU failedPITCH : ROLL : YAW :NORMAL NORMAL NORMALALT (REDUCED PROT) DIRECT ALTDIRECT DIRECT ALTacc: FCOM 1.27.30 FCOM-NG/DSC/27/30ALT (NO PROT) DIRECT ALT

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & ProtectionsFLT CTRL Law ReconfigurationPITCH: ROLL : YAW :PITCH : ROLL : YAW :NORMAL NORMAL NORMALacc: FCOM 1.27.30 FCOM-NG/DSC/27/30ALT (NO PROT) DIRECT ALTDouble ADR fail (2nd not self detected VCAS or M disagree)Triple ADR failDouble SFCC Slat channel fail (G+B)Double HYD fail (G+B)Double self detected ADR failureDouble ADR fail (2nd not self detected or AOA disagreeDouble ELAC failDouble Aileron failTHS jammedELAC 2 + Blue HYD failELAC 1 + Green HYD failELAC 1 + Yellow HYD failOne Elevator failDouble self detected IR failDouble FAC failDouble HYD fail (G+Y)Yaw damper failEMER ELEC from RAT (after FAC 1 reset)Loss of all spoilersTriple SEC failEMER ELEC CONFIG (on batteries)Triple IR failCrew Ident failed IR action:switch off faulty IR reset ELAC 1 + 2RA fail, when L/G down or in CONF2 if both LGCIU failedALT (REDUCED PROT) DIRECT ALTDIRECT DIRECT MECHANICALDIRECT DIRECT ALTALT (REDUCED PROT) DIRECT MECHANICALDouble IR fail (2nd not self detected)

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & Protections Load Factor ProtectionThe load factor is automatically limited to:+2,5g to -1g for clean configuration+2g to 0g for other than clean configuration

Refer to FCOM 1.27.20; FCOM-NG / DSC / 27 / 20

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & Protections Bank Angle Protectionat bank angle 33max bank angle 67with AOA protection active max bank angle 45with High Speed Protection active max bank angle 40With bank angle > 45 autopilot and FD offFD returns when bank angle < 40

Refer to FCOM 1.27.20

Refer to FCOM 1.27.20

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & Protections High AOA ProtectionIf AOA > PROT the system switches to protection mode in which AOA is proportional to sidestick deflection.Max AOA is MAXat AOA = PROT + 1 the auto pilot switches off.vPROT, VMAX and VFLOOR vary according to x-weight and configuration

Refer to FCOM 1.27.20To deactivate AOA protection push sidestick > 8 forward > 0,5 forward and at least 0,5 sec if 25 nose-up or < 13 nose-down

Refer to FCOM 1.27.20; FCOM-NG / DSC / 27 / 20

Prsentationskennung

Prsentationskennung*A320 FLT CTRL Laws & Protections Positive Static StabilityAn aircraft with positive spiral stability tends to roll out of a turn by itself if the controls are centered.In other words the airplane reduces bank by itself aerodynamic configuration.According FCTM Operational Golden Rules No.1 The aircraft can be flown like any other aircraft the A320 series shows basic aerodynamic characteristic of positive static stability.p.e. in Normal Law: Neutral spiral stability up to 33 bank:Automatic pitch trimThe bank angle is maintained when the sidestick is at neutral p.e. in Normal Law: Positive spiral stability restored above 33 bank:No automatic pitch trimThe bank angle returns to 33 if the sidestick is at neutral

Prsentationskennung

Jens Pochandke| Airbus Simulator Admin | Deptmt. TrainingAir Berlin PLC & Co. Luftverkehrs KG | Saatwinkler Damm 42-4313627 Berlin | Tel:+49 30 3434-3015 | Fax:+49 30 3434-xxxx Jens.Pochandke@airberlin.com | http://www.airberlin.comKONTAKTVIELEN DANK FR IHRE AUFMERKSAMKEIT

Prsentationskennung