Question

A DIRECT mode is triggered when: -> failure triggers a disconnect between FCM(s) and P-ACE(s)

(example: FCM failure or failure of sensor that was providing required info to the FCM)
OR
-> guarded button on Flight Controls Mode panel pressed (IN)

In DIRECT mode, flight control deflections are displayed in AMBER colour on Flight Controls Synoptic Page

Spoilers DIRECT mode: spoiler airspeed gain and control limits (uses defaults in P-ACE hardware), ground spoilers

Elevator DIRECT mode: elevator airspeed gain and control limits (uses defaults in P-ACE hardware), elevator thrust compensation (ETC), AOA-limiting, autopilot (AP)

Rudder DIRECT mode: rudder airspeed gain and control limits (uses defaults in P-ACE hardware), and ???

(AeroSim-Flight Controls)

Answer 1

A DIRECT mode in flight controls can be triggered by a failure or by pressing a button. It is displayed in amber color and has specific functionalities for spoilers, elevator, and rudder.

Step-by-step explanation:

The correct answer is option Physics.

When a DIRECT mode is triggered in flight controls, it can occur due to a failure that disconnects the Flight Control Modules (FCMs) and Primary Actuator Control Electronics (P-ACEs), such as a failure of the FCM or a sensor that provides necessary information to the FCM.

Alternatively, it can be triggered by pressing the guarded button on the Flight Controls Mode panel. In DIRECT mode, flight control deflections are displayed in AMBER color on the Flight Controls Synoptic Page.

For the Spoilers DIRECT mode, it uses the defaults in the P-ACE hardware for spoiler airspeed gain and control limits, as well as ground spoilers. In the Elevator DIRECT mode, it uses default values in the P-ACE hardware for elevator airspeed gain and control limits, along with elevator thrust compensation, AOA-limiting, and autopilot (AP).

Lastly, in the Rudder DIRECT mode, it uses defaults in the P-ACE hardware for rudder airspeed gain and control limits. Unfortunately, the information regarding the specific functionality of the Rudder DIRECT mode is not available in the provided question.