Flashcards in FLIGHT CONTROLS Deck (142)
Does the rudder have any protections?
Rudder yaw damping, turn coordination and trim are electrical. T/F?
Are rudder pedals interconnected?
Are trim hand wheels interconnected?
How many Flight Control Computers?
2 ELACs, 3 SECs, 2 FACs
2 Flight Control Data Concentrators (FCDC), what is their function?
They Acquire data from ELACs and SECs and send it to the Electronic Instrument System (EIS) and the Centralized Fault Display (CFDS)
In NORMAL LAW, what two computers control ELEVATOR and HORIZONTAL STABILIZER?
ELAC 2. GREEN and YELLOW hydraulic jacks drive the left and right elevator surfaces respectfully. The THS is driven by motor 1 of three
What happens with the failure of ELAC2, associated hydraulic systems or hydraulic jacks?
The system shifts to ELAC 1 and the blue hydraulic system. THS is driven by motor 2 of three
What happens if neither ELAC 1 or 2 are available?
The system shifts pitch control to either SEC 1 or 2
What are SERVOJACKS?
They drive each ELEVATOR
How many modes do these SERVOJACKS have?
How do the ELEVATOR SERVOJACK modes operate?
Active- Jack position electrically controlled
Damping- Jack follows surface movement. (Some maneuvers cause the second hack to become active)
Centering- Jack hydraulically retained in neutral position
If one elevator fails, what happens to the other elevator?
The other elevator is limited in order to avoid putting excessive asymmetric load on the horizontal tailplane and the rear fuselage
How many motors drive the STABILIZER?
What are the four methods of controlling the 2 STABILIZER HYDRAULIC MOTORS?
Three electric motors and one mechanical trim wheel control the 2 STABILIZER HYDRAULIC MOTORS
ROLL CONTROL: Which components control aircraft ROLL? (5)
(1) AILERON and (4) SPOILERS
ROLL CONTROL: How much and when do AILERONS droop?
5 degrees and when flaps are extended
ROLL CONTROL: What is the maximum spoiler deflection? (319/320)
ROLL CONTROL: What is the maximum spoiler deflection? (321)
35 degrees for spoilers 2, 4 and 5
7 degrees for spoilers 3
ROLL CONTROL: Which computer normally controls the AILERONS?
ROLL CONTROL: ELAC 1 normally controls the ailerons. If ELAC 1 fails, what controls the AILERONS?
ROLL CONTROL: ELAC 1 and 2 normally controls the AILERONS. If they fail, what happens next?
AILERONS revert to damping mode 27.10.9
ROLL CONTROL: Which spoilers do the SECs control?
SEC 1- spoilers 3&4
SEC 2- spoiler 5
SEC 3- spoiler 2
ROLL CONTROL: What happens to a spoiler if the SEC that is controlling it fails?
Spoiler automatically retracts
ROLL CONTROL: How many SERVOJACKS control the each AILERON?
ROLL CONTROL: What are the modes of the two SERVOJACKS that control each AILERON?
Active and Damping
ROLL CONTROL: What happens to the AILERON SERVOJACKS with the loss of both ELACs or with low BLUE AND GREEN HYDRAULIC SYSTEM pressure?
System automatically selects DAMPING
ROLL CONTROL: How many SERVOJACKS for each SPOILER?