# Flight Director (FD)

### PRESENTATION <a href="#flight-director-presentation" id="flight-director-presentation"></a>

A magenta diamond displayed on the Primary Flight Display (PFD) represents the FD.

Pressing the FD button on the display control panel removes the flight director presentation on the PFD under the following conditions:

* **AP engaged:** the Flight Director presentation can be removed by pressing the FD button on the non-coupled display control panel side. On the coupled side it is not possible to remove the FD from the PFD.
* **AP disengaged:** the Flight Director presentation can be removed from both PFD’s by pressing the FD button on the respective display control panel.

### MODES ACTIVATION <a href="#toc118276148" id="toc118276148"></a>

The FD automatically turns on under the following conditions:

* TO/GA button actuation or;
* Manual selection of any vertical or lateral mode or;
* Autopilot engagement or;
* Windshear detection.

Pressing the FD button on the coupled side with AP disengaged, the Flight Director Modes are disengaged (FD cue is removed from both PFDs, FD modes are removed from both FMAs and AT mode changes to SPDt tracking the airspeed target).

To turn off the flight director, press the FPA button on the guidance panel when the active vertical mode is FPA.

If any other vertical mode is active, press FPA button once to activate the FPA mode and then press it again to turn off the Flight Director.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.flightsim-studio.com/e-jet-series/autopilot-guide/flight-director-fd.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
