P2P1 P3

P2

S2S1

P1P1

S1S2

P2

P3

P1P1S1

P3

P2

S2

S1

SFCC 2

[DC ESSLAND REC]

SFCC 2[DC2]

SFCC 1

[DC2]

SFCC 1[DC ESS SHED

LAND REC]

ELECPUMP

[AC1-1,DC1]SHUT OFF VLV[DC2, DC ESS] [DC ESS]

ENG 2REV

ENG 3REV

ENG 1REV

ENG 4REV

NORM BRK

Gear & doorsselector valves

NOSEWHEEL

STEERINGALTN & PARK BRK

ELEVATOR ACTUATOR MODES- active, electrically controlled- damping, follows surface- centering, hydraulically maintained in neutralonly if 4 jacks are unpowered (both sides)

AILERONS ACTUATOR MODES- active, electrically controlled- damping, follows surfaceROLL DEFLECTION LIMITS- 25° for ailerons- 35° for spoilers

MOT MOT

MOT1[DC ESSSHED]

MOT1[DC ESSSHED]

ARTFEEL

MOT2[DC2]

MOT3[DC2]

MOT2[DC2, DC1]

TRIM WHEEL

ACTUATOR

BYDU

BACKUP YAWDAMPER UNIT

ACTUATOR

S2

S1

S2

S1

RUDDERTRIM

YAW DAMPER

RUDDERPEDALS

MOT1[DC ESS]

MOT2[DC2] S2

S1

BSCUCH1 [DC1]

CH2 [DC2] BSCU

LGCIU 1[LAND REC]

LGCIU 2[DC2]

RUDDERLIMITER

NORMAL

=

PTLUPedalTravelLimitUnit

NORMAL SERVOVALVE

LANDINGSAFETYVALVE

BOGIEPITCH

TRIMMER

ALTERNATESERVOVALVE

DUALVALVE

PARKINGBRAKEVALVE

DUALSHUTTLE

VALVE

LP DISTRIBUTION LINE

NORMALSELECTOR

VALVE

AUTOMATICSELECTOR

SERVOVALVE

G HYD fromnose gear doorsclosing circuit

GRAVITYEXTENSION

CUT OUTVALVE

ACCU

ELEVATORS

AILERONS / SPOILERS

SLATSFLAPS

LANDING GEAR / NWS

A343 FLIGHT CONTROL LAWS

HYDRAULICS

BRAKES

RUDDERA343E (HB-JMH/I)

RUDDER A343C (HB-JMA-G/J-O)

STABILIZERTRIM

NWS LIMITSSteering hanwheels:max 72° at 14kts, 0° at 100ktsRudder pedals:TO: max 6° at 100kts, 0° at 150ktsLDG: max 6° at 40kts, 0° at 100ktsTowing max 65°Oversteer at 93°

LIMITATIONSNormal pressure 3000 ± 200 psiRAT pressure ~2500 psiFluid SKYDROL LD4RESERVOIR PRESSURIZATIONis achived by HP bleed air fromengine 1 or x-duct bleed

RAT comes automatic out if all eng fail or G+B LO LVL or (ENG 1+4 FAIL and AC BUS 1.1 + 2.4 FAIL)

GEAR LIMITSretraction 250kts/.55extension 250kts/.55extended 250/M.55gravity ext 200ktsmax alt ext 21'000ft gear dn flt 255/M.60tire speed 204kts

ACCUdesigned for 7 full brakes application or at least 12 hrs prk brk

AUTOBRAKEmode delay decelLO 1s 1.8m/s2MED 0s 3m/s2MAX max pressureDECEL light illuminates if 80% of rate in LO or MED and if 2.65m/s2 decel in MAX mode

!!! NOT FOR OPERATIONAL USE !!! A340 ©Pierre-Michel Gasser , 26.3.2009

LIMITS85% of

deflectionlimited to 29°

RUDER LIMITS35° < 150kts

Max deflection 31.6°

4° > 350kts

ELEVATOR DEFLECTION LIMITS- 30° nose up- 15° nose down

STABILIZER LIMITS14° nose up2° nose down

P3

S1P1

P2S2

P3

P3

S1 S1

P1

GND SPLR and SPD BRK

S2

P2 WTB P1 P2

S2S1 S2 P3

65

43

21

Maneuver Load AllevationRoll Control

WTB

SF

CC

1

SF

CC

2

WTB

SF

CC

2

SF

CC

1

SF

CC

1

SF

CC

2

WTB

SF

CC

1

SF

CC

2

SLATS / FLAPSECAM Slats Flaps (ailerons) VFE1 20° 0° (0°) 255kts1+F 20° 17° (10°) 215kts2 RELIEF 24° 17° (10°) 205kts2 24° 22° (10°) 196kts3 24° 26° (10°) 186kts

FULL

24° 32° (10°) 180kts

Max altitude with Flaps/Slats extended is 20’000ftSlats ALPHA LOCK if α > 8.5° or IAS < 148ktsT/O with conf 1+F, auto flaps retract at 200kts

ELECPUMP

[AC1-2,DC2]

HANDPUMP

ENG3PUMP

RESERVOIRRESERVOIR

RAT

ACCU CARGODOORS

ENG2PUMP

RESERVOIR

ACCU

ELECPUMP[AC2-3,DC1]

ENG4PUMP

ENG1PUMP

EMERGEN

ARTFEEL

MOT1

MOT2

GRAVITYEXTENSIONSYS 1 [HOT 1]

SYS 2 [HOT 2]

( IAS<280kts or MLG on GND )

andGear Lever Down

[DC ESS]

ELECGEN

ELECGEN

ELECGEN

ELECGEN

PITCHGND

FLT

FLARE

ROLL PROTECTIONSDirect deflection Direct deflection

Roll rate

Load factor +2.5g / -1g cleanLoad factor +2g / 0g not clean= Pitch 30°up / 15°down= Bank 67° / 33° stick neutralSide slip blue if eng failureHigh α, Vα prot, Vα floor, Vα max= High speed VMO+4, bank 0° with stick neutralLow energy warning Flaps 2,3 or FULL 100ft - 2000ft

Direct deflection50ft pitch down order

Load factor demandAuto pitch Trim if lessthan 33° bank

ALTN 1same as Normal

Same as Normal except:X no Pitch & Low energy protHigh α: LOST if VS1g computation failureLow speed, nose down demand 5-10kts > Stall warningHigh speed, light nose up demand, symbol disappears

ALTN 2Roll directSpoiler 2,3 & 6 u/sYaw alternate

Same as Altn 1 except:X no Bank protno Low speed prot if 2 ADR failedno High speedif 3 ADR failed

DIRECT

MECHANICAL BACK-UP

Roll directYaw alternate

No protection except Overspeed & Stall

RUDDER ONLYYaw by BYDUA343E with BCM

RA<100ft

RA>50ft

BRAKE TEMPERATURE- T/O max 300°C- tyre deflates at ~800°C

Maintenance action required if:- (TEMP difference on same gear > 150°C) and (1 BRK > 600°C or < 60°C)- average diff TEMP L/R > 200°C- a fuse plug has melt- Brake temp > 800°C

x

x

PRIM 1[DC ESS, HOT]

SEC 1[DC ESS, HOT]

PRIM 2[DC 2, DC 1]

SEC 2[DC 2, DC 1]

FCDC 1[DC ESS]

FCDC 2[DC 2]

PRIM 3[DC 2, DC 1]

MOT1[DC ESSSHED]

MOT2[DC2]S2

S1

RUDDER TRIMPFTU(Pedal Feel andTrim Unit)

+

BCMBackupControlModule

ACTUATOR

ACTUATOR

ACTUATOR

CTL [DC1] CTL [DC1] CTL [DC2] CTL [DC2]

[DC2,DC ESS]

[DC ESS]

AUTO CTL[DC ESS]MAN CTL[HOT]

A343

same as Normal

same as Normal

Direct control

Manual pitch trim only

F/CTL ALTN LAW (PROT LOST)

F/CTL ALTN LAW (PROT LOST)

F/CTL DIRECT LAW (PROT LOST)

F/CTL L + R ELEV FAULT

USE MAN PITCH TRIM

MAN PITCH TRIM ONLY

ELECTRIC PUMPSFlow is ~18% of eng pump, used to retractsurfaces but not to replace the eng pumps.

G ELEC PUMP runs 25’ if ENG 1 (4) FAILand GEAR selected up and speed>100ktsor on GND with ENG 1 & 4 stopped toprovide braking and nose wheel streering

Y ELEC PUMP runs if ENG 3 FAIL and FLAPS not 0° and speed>100kts