Flight Controls Flashcards
What kind of flight control system does the aircraft have?
A functionally distributed Fly-by-wire control system
Two basic modes of operation
Normal (NM) and Direct (DM)
When will the flight control system automatically revert back to Direct mode?
When Normal mode is not possible due to multiple system failures
Is flight under Direct mode recommended?
No, it should be avoided since some protection functions are lost
What happens if the AP/PTY button is pressed and released?
Auto pilot is disengaged
What happens if the AP/PTY button is pressed and held for longer than a second?
Exclusive control given to the side stick while it’s pressed in and priority annunciation is activated
If one side stick has been latched out, how can exclusive control be removed?
By pressing either sides priority button
What happens if dual side stick input occurs and priority has not been requested by either?
Tactile warning in each stick, oral warning, PFD flag are triggered.
The inputs are algebraically summed
Is sidestick controller priority available in Direct Mode?
No, normal mode only
With AP engaged, Touch Control Steering (TCS) does what?
Allows pilot to manually control airplane while AP is engaged
During manual flight with flaps 3 or full, gear down, AP off, what does the Touch Control Steering (TCS) button do?
Resets TCS trim speed bug
Pulling the speed brake level activates what?
Deploys multifunction spoilers as speedbrakes
What are the multifunction spoiler angles when used as speed brakes?
Stowed is 0, FULL is 30
When can the Pitch trim switch be manually operated?
On the ground or in Direct mode
What button is used to recover Normal Mode or revert to Direct Mode is Norm is malfunctioning?
FLTCTRL NORMAL MODE button
When is a manual switch to DM inhibited?
FCS protection engaged: Low or high speed protection, AOA protection
On the Flight control synoptic page, an amber actuator status means…
Plane is in Direct Mode and at least one actuator is engaged
When is side slip target presented by a blue side slip skid indicator?
One engine inop during TO, climb, or GA
Where is the Low Speed Awareness (LSA) located?
Adjacent the speedtape
Where are the Pitch Limit Indicators (PLI’s) located
On the ADI
List the 3 LSA bands in NM and what they indicate
Vss - top of white tape - low speed protection function
Vaoa - top of Amber tape - AOA limiter function activation
Vlim - top of red tape - max allowable AOA airspeed
Do the Vss and Vaoa/Vlim behave the same in turns and other maneuvers?
No, Vss goes off speed and the other two go off AOA
Do Vaoa and Vlim increase with load factor?
Yes
Is the AOA limiter function available in DM?
No
List the 2 LSA bands in DM
Vms - top of Amber tape
Vsa- top of red tape - stall aural alert is activated
Are the Pitch Limit Indicators displayed in DM?
No
PLI colors if airspeed drops below Vaoa or Vlim in NM
Amber below Vaoa, Red below Vlim
How many flight control computers (FCC) do you need to maintain NM
1
Purpose of black airplane battery
To withstand system operation for 15 while we figure out how to get proper power
How long does each PBIT test of the FCS take?
Less than a minute
If PBIT conditions are not satisfied how many PBIT attempts can the FCS automatically perform?
Up to 3
During PBIT operation what CAS message is shown?
FLTCTRL TEST IN PROGRESS
When is the derotation control law active
Touch down
What does the neutral spiral stability control law provide?
Automatically trims the elevator when the stick is set back to the neutral position to maintain level flight during turns up to 33 * bank
If you want to bank more than 33* what do you have to do to keep it level?
Stick aft during the turn
5 things that auto stow the speed brakes
- Below 160kts
- Vss low speed
- TLA 55 degrees or more
- Flaps 3/Full
- TOGA
How do you know that the speed brakes auto stowed and how can you use them again?
Cyan SPDBRK LEVER DISAG displayed and the lever will have to be stored again.
What do the the Flight Control Laws (CLAWS) provide?
Prevents plane from exceeding flight envelope limits
What are the 2 flight envelopes
Normal and limit
Limits of normal envelope
33* bank angle
High speed protection (Vmo)
Low energy avoidance protection (1.13 Vs)
Pitch attitude protection
High speed protection limit
Vmo + 22kts
When does pitch attitude protection activate?
+30/-15
What does the limit flight envelope require?
More effort to maintain the plane in this configuration
Boundaries of limit envelope
Full control application (no hard limits on pitch and bank)
Max AOA
Structural limits (load factor protection)
Max sideslip protection
Dive speed protection
Is AP available in DM?
No
In DM how does the airplane behave?
Like a conventional airplane. Stick and pedal deflections are directly related to the surface position.
What will trigger the TO CONFIG warning?
- Flaps not in takeoff configuration
- Parking brake applied
- Any spoiler panel deployed
- Pitch trim out of green
