Flight Controls Flashcards
What type of flight control system does the aircraft have
FBW
What are the two basic modes of operation for the flight controls
Normal Mode and Direct Mode
When will the flight control system revert automatically to Direct Mode
When it is not possible to keep normal mode (NM) operation due to multiple system failures
What happens when the AP/PTY button is momentarily pressed
The autopilot is automatically disengaged
What happens when the AP/PTY button is pressed for more than 1 second
Exclusive control is given to the side stick while pressed in the priority annunciation is activated
What happens when the AP/PTY button is pressed and held for more than 20 seconds
The perspective sidestick will have exclusive control latched
If one side stick has been latched out, how can exclusive control be removed?
By pressing the other sides priority button
What happens if dual sidestick input occurs and priority has not been requested by either pilot?
A tactile warning on both sidesticks is activated and an oral warning and PFD flag are triggered. The sidestick inputs are algebraically summed.
Is sidestick controller priority logic available in Direct Mode
No, it is only available in normal mode (NM)
With the AP engaged, what does pressing the TCS button do?
It allows the pilot to manually control the airplane while the AP is engaged
During manual flight with flaps 3 or full, landing gear down and the AP disengaged, what does pressing the TCS button do?
It resets the TCS trim speed bug
How can the multifunction spoilers be deployed and used as speed brakes
By the speed brake lever
What are the angles of multifunction spoilers that correspond with the speed brake positions?
From 0deg (STOW) to 30 deg (Full)
When can the pitch trim switch be manually commanded
Only on the ground or in direct mode
Which button is used to recover Normal Mode (NM) or revert to Direct Mode (DM) in the case of a normal mode (NM) misbehavior
The FLTCTRL NORMAL MODE button
When is a manual reversion to Direct Mode inhibited
When the following FCS protection envelopes are engaged:
1) Low Speed protection
2) Angle of Attack (AOA) limiter protection
3) High Speed Protection
On the Flight Control Synoptic page, what color actuator status indicates that the respective flight control surface is in the normal mode and at least one actuator is engaged
Green
On the Flight Control synoptic page, what does a yellow actuator status indicate
It indicates direct mode and at least one actuator is operational.
When is the side slip target presented by a blue side slip skid indicator
When OEI during takeoff, climb or go around flight phase
Where is the Low speed awareness (LSA) band located. The PLI’s?
Adjacent to the speed tape on the ADI
List the three LSA bands in normal mode
1) Vss - top of the white tape - Low speed protection function
2) Vaoa - Top of the amber tape - AOA limiter function
3) Vlim - Top of the red tape - speed associated with the max allowable AOA airspeed.
Do the Vss and Vaoa/Vlim indications behave the same in turns and other manuevers? Why or why not
No because Vss is defined in terms of speed and Vaoa/Vlim are defined in terms of AOA
Do Vaoa and Vlim increase with load factor
Yes
Is the AOA limiter function operational in Direct mode (DM)
No
List the two LSA bands in Direct Mode and what they represent
1) Vms - top of the amber tape
2) Vsa - Top of the red tape, indicates the airspeed at which the stall aural alert is triggered.
Are the pitch limit indicators (PLI’s) displayed in direct mode
No
What color does the PLI become if the airspeed drops below Vaoa in Normal Mode (NM). What about Vlim
- Amber and Red
How many flight control computers (FCCs) are sufficient to provide Normal Mode (NM) functionality
One
What is the purpose of the Black Airplane Battery
To withstand the operation for a minimum of 15 mins in order for the flight crew to recover the proper airplane electrical system operation.
How long does each PBIT test of the FCS take
Less than 1 min
If the PBIT conditions are not satisfied, up to how many PBIT operation attempts can the FCS automatically perform
Up to three
During PBIT operation, which CAS message is displayed
The FLITCTRL TEST IN PROGRESS CAS
When is the de-rotation control law active
When the aircraft touches down
What does the neutral spiral stability control law provide
It automatically trims the elevator when the sidestick controller is set back to the neutral position to maintain flight level during turns up to 33 deg
If the pilot commands a turn with a bank angle of greater than 33 deg, what do they need to do in order to maintain level flight in that turn
Maintain the desired sidestick lateral deflection an move the sidestick controller aft.
List the 4 conditions that will cause the speed brakes to automatically stow
1) If the airspeed drops below 160kts
2) the TLA position is greater than 55 deg
3) The flap level position is set to 3 or full
4) The AOA limiter is engaged
If the speed brakes are automatically stowed, what indication will the pilots have and how can the speed brakes be re-activated
The cyan SPDBRK LEVER DISAG CAS message is displayed and the SPEED BRAKE LEVER must be set back to stow.
How is the manual reversion to Direct Mode (DM) available if the flight crew detects a Flight Control Normal Mode (NM) misbehavior
by a FLTCONTRL N-MODE FAIL CAS message
What are the limits of the high speed protection envelope
The airspeed is limited to Vmo + 22 kts
When does the pitch attitude protection activate
At pitch angles of 30 deg pitch up and 15 deg pitch down
What does the limit flight envelope require?
More effort to maintain the airplane in this configuration.
What are the boundaries/ hard limits of the flight envelope
The external boundaries of the limit flight envelope are reached at full control application. The hard limits of the limit flight envelope are the maximum AOA, airplane structural limits (load factor protection), maximum sideslip protection, and dive speed protection. There are no hard limits for pitch and bank angles.
Is the AP operational in Direct Mode (DM)
No
In direct mode, how does the airplane behave
Like a conventional airplane and the sidestick controller and pedal deflections are directly related to the surface position.
