Circuit Avionics - Flight Simulator Hardware
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Aircraft Profiles for Autopilot

Profiles are user-moddable through the MobiFlight software

Collaborate and share your profiles on the Discord server

Profiles marked MSFS are compatible with both FS2020 and FS2024, where applicable

Function varies by aircraft and developer

MSFS - iFly Boeing 737 MAX

iFly Boeing 737 MAX (TUI Airways)

Discuss this Profile on Discord

See You Have Control for info on modding aircraft profiles.

Important

The MobiFlight setting Automatically perform Retrigger Action with Run Mode should be disabled when using this profile. Failure to do so causes unwanted commands when the profile is Run.

Follow these steps to get the IAS/MACH displays working, and the BARO to show standard pressure:

  • Download the tool Add Lvar for iFly 737 Max8
  • Extract the archive somewhere handy.
  • Edit the file addLvar.ini as follows:
    • baro_Lvar[0:off/1:on] = 1
  • Remember to run the tool AddLvarTrayapp.exe when you fly the iFly.
    • The program sits in your system tray and can be quit using the right-click menu.

The reason this is required is that iFly do not make this data available to hardware users through the method most commonly used (LVARs). We have requested iFly make these LVARs available. They have responded positively, without committing to a timescale.

We are grateful to flightsim.to user FLYINGTOMO for making this tool available to the hardware community as a stop-gap!

Changelog

2025-10-04 - v2

  • Added STD pressure display
  • Added IAS/Mach Display
    • An external tool is required. See the 'Important' section.

Pilot Notes

Flight Directors

It's normal for only one Flight Director LED to illuminate, even if both FDs are selected On, because only one of the FDs is Master. This is the way the real aircraft works.

TOGA

TOGA is commanded when N1 THR is pushed for 0.5 seconds.

EFIS Controls

The MINS, BARO and EFIS RANGE knob push all function as they would when you push the knob on the real aircraft.

TFC (TCAS Traffic Display) is activated when EFIS RANGE is pushed for 0.5 seconds.

Crew Wheel Steering (CWS)

CWS A and CWS B are activated when CMD A or CMD B are pushed for 1 second. The corresponding CMD button will blink when CWS is engaged.

A/P and A/T DISENGAGE

Both controls are on the red DISENGAGE button.

SHORT PUSH to disengage the Autopilot. Repeat the action to silence the alarm and stop the AP P/RST annunciator from flashing.

LONG PUSH (1 second) will disengage the Autothrottle. Repeat the action to stop the AT P/RST annunciator from flashing.

VERT SPEED

The aircraft displays 50-foot increments but the data it sends to our display is in 100-foot increments.

Intervene

SPEED INTERVENE and ALTITUDE INTERVENE are integrated directly into the corresponding knob. Push the knob to intervene.

Course 2

COURSE 2 is set as follows:

 

  • Push COURSE knob. Display dims. COURSE 2 is displayed.
  • Dial in desired course using the knob.
  • Push COURSE knob. COURSE 1 is displayed. Brightness goes back to normal.

 

Toilet

Hold in the C/O button to flush the forward lav. It's just about audible from the flight deck.

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