Flight Controls Flashcards
Power Control Units (PCU)
Hydraulic operated actuator
Both system A and B
Power Control Units (PCU)
Hydraulic operated actuator
Both system A and B
Ailerons
• One aileron and 2 roll-control spoilers
o Pilot wheel – aileron
o Copilot wheel – roll spoilers
• Aileron feel – bungee, positive centrering
• Hydraulic actuation – PCU
• If only 1 PCU – lower ratio (AILERON RATIO LOW white CAS)
• No PCU powered – mechanical operation
• Electrical trim acts on bungee system
• Low ratio +/- 8
• High ratio +/- 15
Ailerons
• One aileron and 2 roll-control spoilers
o Pilot wheel – aileron
o Copilot wheel – roll spoilers
• Aileron feel – bungee, positive centrering
• Hydraulic actuation – PCU
• If only 1 PCU – lower ratio (AILERON RATIO LOW white CAS)
• No PCU powered – mechanical operation
• Electrical trim acts on bungee system
• Low ratio +/- 8
• High ratio +/- 15
Roll Spoiler
• Outboard – A System, deploy at 7 deg of aileron deflection
• In board – B System, deploy at 12 deg of aileron deflection
Roll Spoiler
• Outboard – A System, deploy at 7 deg of aileron deflection
• In board – B System, deploy at 12 deg of aileron deflection
Elevator
• Pilot control – left elevator
• Copilot control – right elevator
• 2 PCUs per elevator (A and B System)
• Pitch feel PCU centering bungee – input from AFCS
• Both hyd fail – manual reversion (flight control shutoff switch)
Elevator
• Pilot control – left elevator
• Copilot control – right elevator
• 2 PCUs per elevator (A and B System)
• Pitch feel PCU centering bungee – input from AFCS
• Both hyd fail – manual reversion (flight control shutoff switch)
Horizontal Stabilizer • Trim – 2 x 28 VDC motors • +1.2 to -12.0 • Primary trim – Main DC, AP and mach trim • Secondary trim – EMER BUS
Horizontal Stabilizer • Trim – 2 x 28 VDC motors • +1.2 to -12.0 • Primary trim – Main DC, AP and mach trim • Secondary trim – EMER BUS
Rudder
Lower Rudder
• Hydraulic 2 x PCUs ( A and B Systems)
• Mechanical input
• 30 deg (100%) deflection up to 140 knots reducing to 4 deg (electrical limiting)
• Dutch roll damping and low-speed turn coordination - electric yaw damp actuators via AFCS Main DC
• Limit to 6 deg (rudder do not deflect)
• Trim – actuator trim and rudder centering
• Rudder feel bungee connected to PCU
Rudder
Lower Rudder
• Hydraulic 2 x PCUs ( A and B Systems)
• Mechanical input
• 30 deg (100%) deflection up to 140 knots reducing to 4 deg (electrical limiting)
• Dutch roll damping and low-speed turn coordination - electric yaw damp actuators via AFCS Main DC
• Limit to 6 deg (rudder do not deflect)
• Trim – actuator trim and rudder centering
• Rudder feel bungee connected to PCU
RSS
• Backup to lower B system PCU
• Inghibited on ground until engine running
RSS
• Backup to lower B system PCU
• Inghibited on ground until engine running
Upper rudder • Yaw-Stability Augmentation System (YSAS) • Fly-by-wire • Dutch roll damping and yaw control • Servo-motor • 15 deg for yaw damping • Up to 18 deg for rudder input (speed limited) below 255 KIAS • EMER BUS
Upper rudder • Yaw-Stability Augmentation System (YSAS) • Fly-by-wire • Dutch roll damping and yaw control • Servo-motor • 15 deg for yaw damping • Up to 18 deg for rudder input (speed limited) below 255 KIAS • EMER BUS
Flaps
• 3 fowler flaps per wing
• Electrical PDU 28 VDC motor
Flaps
• 3 fowler flaps per wing
• Electrical PDU 28 VDC motor
Slats
• 1 Slat per wing
• 4 actuators per flaps (2 A Sys, 2 B Sys)
• Electrically controlled, hydraulically actuated
• Extended when flaps extended
• Auto operation
o AOA 0.83 (13 deg) auto extend inhibit > 270 KIAS
• Slats asymmetry - < 10 Kts cross wind landing
Slats
• 1 Slat per wing
• 4 actuators per flaps (2 A Sys, 2 B Sys)
• Electrically controlled, hydraulically actuated
• Extended when flaps extended
• Auto operation
o AOA 0.83 (13 deg) auto extend inhibit > 270 KIAS
• Slats asymmetry - < 10 Kts cross wind landing
Speed brakes • 3 panels per wing o 1 Outboard – A System o 2 Inboard – B System • Hydraulic actuators • Full deflection 40 deg • >500 ft AGL • FADEC trimmed TLA > 31
Speed brakes • 3 panels per wing o 1 Outboard – A System o 2 Inboard – B System • Hydraulic actuators • Full deflection 40 deg • >500 ft AGL • FADEC trimmed TLA > 31
Limitations • Mach Trim inop – M0.82 • A and B sys unload < 15k ft only • Upper Yaw damper inop o Max FL450 • Lower Yaw damper inop o FL410 o Min M0.75 above FL310 o Flaps 2 Max
Limitations • Mach Trim inop – M0.82 • A and B sys unload < 15k ft only • Upper Yaw damper inop o Max FL450 • Lower Yaw damper inop o FL410 o Min M0.75 above FL310 o Flaps 2 Max
• Both rudder limiters ops before t/o • Both upper YD channels ops before t/o • Load o Flaps up -1.0 to 2.7G o Flaps down 0.0 to 2.0G o Max neg G 10 secs
• Both rudder limiters ops before t/o • Both upper YD channels ops before t/o • Load o Flaps up -1.0 to 2.7G o Flaps down 0.0 to 2.0G o Max neg G 10 secs
- Min speed in icing – 200 / slats up
- Flaps <20k ft
- Slats - 250
- Flaps 1 – 250
- Flaps 2 – 210
- Flaps full – 180
- Max alt for flaps and dears extended FL180
- Mini speed brakes – Vref + 15
- Min speed in icing – 200 / slats up
- Flaps <20k ft
- Slats - 250
- Flaps 1 – 250
- Flaps 2 – 210
- Flaps full – 180
- Max alt for flaps and dears extended FL180
- Mini speed brakes – Vref + 15
