7. Flight Conrols & Laws (Flight Controls) Flashcards
What type of flight control system does the A320 family aircraft utilize?
Fly-By-Wire system
Describe how the flight controls are controlled and activated.
Electrically Controlled and Hydraulically Activated
How is NORMAL LAW indicated on the PFD?
• Green “=” for pitch, bank, and over speed limits
+30,-15,67
• Amber/black (ALPHA PROT) airspeed tape
How is ALTERNATE LAW indicated on the PFD?
Amber Xs (indicating lack of NORMAL LAW protections)
How is DIRECT LAW indicated on the PFD?
• Amber “USE MANUAL PITCH TRIM”
• Amber Xs (indicating lack of NORMAL LAW protections)
How is MECHANICAL BACKUP indicated on the PFD?
• Red “MAN PITCH TRIM ONLY”
• Amber Xs (indicating lack of NORMAL LAW protections)
When operating in NORMAL LAW in flight mode, what does the side stick command for pitch and roll?
• Pitch – G load
• Bank – Roll rate
What is the significance of the Side Stick Priority (Red Arrow) Light?
The other pilot has gained side stick authority
Name the Flight Control Computers and the number of each.
• ELAC – Elevator Aileron Computer (2)
• SEC – Spoiler Elevator Computer (3)
• FAC – Flight Augmentation Computer (2)
What does SEC 3 control?
Spoiler Control – one flight spoiler and one ground spoiler on each wing
What should happen to the THS after landing?
Reset to zero
Describe some of protections a pilot will have in NORMAL LAW?
• High Speed
• High Angle of Attack (AOA) Protection
• Load Factor Limitation +2.5G / -1.0G (+2.0G / 0.0G With Flaps/Slats)
• Pitch Attitude Protections (30° UP / 15° DN)
• Bank Angle Protections (67°)
Describe High Speed Protection.
If Vmo/Mmo plus a predetermined factor is exceeded, the system induces a pitch-up input to limit aircraft speed
What, if anything, can a pilot do to override high-speed protection pitch up?
It is not possible to override a protection while still in NORMAL LAW. In this case, the aircraft would need to be forced into ALTERNATE LAW (by turning 2 ADRs off, for example).
What is αMAX?
The maximum angle of attack allowed in NORMAL LAW, indicated by the top of the red strip on the airspeed scale.