Praetor Flight Controls Flashcards
What type of flight control system does the aircraft have?
A functionally distributed Fly-by-wire (FBW) control system
What are the two basic modes of operation for the flight controls?
Normal mode (NM) and direct mode (DM)
When will the flight control system revert automatically to Direct Mode (DM) operations?
When it is not possible to keep the normal mode (NM) operation due to multiple system failures
Is flight under Direct Mode (DM) recommended? Why or why not?
No, it should be avoided as some airplane protection functions are only available in normal mode (NM)
What happens when the AP/PTY button is momentarily pressed?
The auto pilot 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 side stick will have exclusive control latched
If one sidestick has been latched out, how can exclusive control be removed?
By pressing either side’s priority button
What happens if dual sidestick input occurs, and priority has not been requested by either pilot?
A tactile warning and 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’s only available in normal (NM)
With the autopilot engaged, what does pressing the Touch Control Steering (TCS) button do?
It allows the pilot to manually control the airplane while the autopilot is engaged
During manual flight with flaps 3 or full, landing gear down and the AP disengaged, what does pressing the Touch Control Steering (TCS) button do?
It resets the TCS trim speed bug
How can the multifunction spoilers be deployed for use as speed brakes?
By the speed brake lever
What are the angles of multifunction spoilers that correspond with the speed brake positions?
From 0 degrees (STOW) to 30 degrees (FULL)
When can the Pitch Trim Switch be manually commanded?
Only on the ground or in direct mode (DM)
Which button is used to recover Normal Mode (NM) or to 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 (DM) inhibited?
When the following FCS protection envelopes are engaged:
-Low speed protection
-Angle of Attack (AOA)
-limiter protection
-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?
In One Engine Inoperative (OEI) condition during takeoff, climb, or go-around flight phase
Where is the Low Speed Awareness (LSA) band located? The Pitch Limit Indicators (PLI’s)
Adjacent to the speed tape; on the ADI
List the three LSA bands in Normal Mode (NM) and what they indicate.
- VSS-top of the white tape-low speed protection function
- VAOA-top of the amber tape-AOA limiter function activation
- VLIM-top of the red tape-the speed associated with the maximum allowable AOA airspeed
Do the VSS and Vaoa/Vlim indications behave the same in turns and other maneuvers? Why or why not?
No because the 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
