Aircraft Controls and Mechanisms

The primary FCS includes the components that control the two ailerons, six spoilers, two elevators, and one rudder.

The flight control surfaces are hydraulically actuated and electrically controlled with fly-by-wire technology.

The SPOST is a feature of the FCC channels that runs when power is first applied, and it checks the system for proper functioning.

<p>In the event that both FCCs are inoperative, the Backup Flight Control Unit (BFCU) controls the elevators, ailerons, outboard spoilers, and rudder.</p> Signup and view all the answers

<p>All primary flight control surfaces (other than one mid or inboard spoiler pair)</p> Signup and view all the answers

<p>To maintain emergency flight and landing capability if all four channels of the FCCs become unavailable</p> Signup and view all the answers

<p>HA and EBHA</p> Signup and view all the answers

<p>Hydraulically Active, Electric Backup, Damped Bypass</p> Signup and view all the answers

<p>On-ground, Takeoff and Landing, Cruise, Angle of Attack (AOA) Limiting</p> Signup and view all the answers

<p>The amount of elevator deflection per column deflection will decrease so that the pitch response will not be too sensitive.</p> Signup and view all the answers

<p>When the On-ground sub-mode logic is not satisfied AND AOA limiting sub-mode logic is not satisfied AND either the autopilot is engaged OR both the landing gear and flap handles are up.</p> Signup and view all the answers

<p>The FCC AOA Limiting (advisory) CAS message will be displayed. Additionally, the (caution) CAS message will be displayed.</p> Signup and view all the answers

<p>The FCS will be in the AOA limiting sub-mode when Normal mode conditions are satisfied, WOW from both main landing gear indicates weight off wheels, AOA limiting is available, and Normalized AOA is greater than the AOA limiting sub-mode entry threshold.</p> Signup and view all the answers

<p>Entry into the AOA limiting sub-mode can occur at any normalized angle of attack with abrupt nose up control input. The FCC AOA Limiting (advisory) CAS message will be displayed, along with the (caution) CAS message if the AOA is near its limit value of 0.96.</p> Signup and view all the answers

<p>The FCS will be in Alternate mode when specific conditions related to air data probes, IRU data, and horizontal stabilizer are satisfied. Alternate mode is primarily indicated by an FCC Alternate Mode (caution) CAS message.</p> Signup and view all the answers

<p>Direct mode behavior is the same as Alternate mode, and both are primarily indicated by a (caution) CAS message. In Direct mode, AOA limiting is unavailable as annunciated by the message.</p> Signup and view all the answers

<p>The conditions for entry into the AOA limiting sub-mode are WOW from both main landing gear indicating weight off wheels, AOA limiting available, and normalized AOA greater than the entry threshold. The indications of being in this sub-mode are the FCC AOA Limiting (advisory) CAS message and the (caution) CAS message if the AOA is near its limit value of 0.96.</p> Signup and view all the answers

<p>The conditions for Alternate mode entry are less than two heated air data probes, inconsistent IRU data, or the horizontal stabilizer reporting being in Backup Mode. Alternate mode is primarily indicated by the FCC Alternate Mode (caution) CAS message.</p> Signup and view all the answers

<p>When all four FCC channels become invalid, the FCS operates in Direct mode, where AOA limiting is unavailable as indicated by a (caution) CAS message.</p> Signup and view all the answers

<p>The SPOST is crucial for ensuring the availability and functionality of the Direct mode, which is utilized when all four FCC channels become invalid.</p> Signup and view all the answers

<p>The FCS enters the AOA limiting sub-mode when Normal mode conditions are met and the AOA is greater than the entry threshold. To protect against unnecessary entry into AOA limiting during landing and flare, the approach speed should be increased during strong or gusty wind conditions.</p> Signup and view all the answers

<p>To limit the angle of attack (AOA) during normal maneuvering to prevent excessive AOA and protect against unnecessary entry into AOA limiting during landing and flare.</p> Signup and view all the answers

<p>Entry into the AOA limiting sub-mode can occur at any normalized angle of attack with abrupt nose up control input. The FCC AOA Limiting (advisory) CAS message will be displayed, and the (caution) CAS message will be displayed if the AOA is near its limit value of 0.96.</p> Signup and view all the answers

<p>The FCS will be in Alternate mode when conditions such as less than two heated air data probes, inconsistent IRU data, or the horizontal stabilizer reporting backup mode are satisfied. It is primarily indicated by an FCC Alternate Mode (caution) CAS message.</p> Signup and view all the answers

<p>In Direct mode, the behavior is the same as Alternate mode, but with some software and hardware differences to ensure availability. It is primarily indicated by a (caution) CAS message, and AOA limiting is unavailable while in this mode.</p> Signup and view all the answers

<p>The yaw damper will be active using sensor feedback to the rudder in combination with the rudder pedal input to damp dutch roll oscillations. It is primarily active when the aircraft is in Takeoff and Landing sub-mode. The yaw damper uses sensor feedback to the rudder and rudder pedal input to dampen dutch roll oscillations.</p> Signup and view all the answers