The powerful XTreme instrument series consists of two instruments …

The XTreme-EFIS which is a full featured EFIS system with navigation & EMS; and

The XTreme-EMS which is purely a sophisticated EMS (engine monitoring system).

XTreme Big

XTreme-EFISXTreme-EMS (Engine Monitor only)

XTreme EFIS

XTreme Big

The XTreme EFIS is a full featured Electronic Flight Information System and Engine Monitor all wrapped up into a compact instrument that fits a standard 3 1/8″ instrument hole. The XTreme EFIS has a high resolution, wide viewing angle 4.3″ sunlight readable (600nits brightness) display.

A little more about the XTreme EFIS (before you read the manual)

The XTreme EFIS is an affordable mini EFIS which can be configured as a Primary Flight Display (with AHRS sensors added), and/or an engine monitor (with an engine module [RDAC] added).

It includes a GPS receiver that is used to provide ground speed and range information, as well as a backup/control for the AHRS. If you don’t select the SP-7 attitude sensor, you can still have a GPS-derived bank angle display!

You can use the XTreme as a …

  • Primary EFIS
  • Backup EFIS
  • Engine Monitor
  • EFIS/Engine Monitor
  • Basic GPS Navigator with CDI (no moving map)

Planned functions include Internal Autopilot (just add servos and connection module) – expected 4th quarter 2011. All system firmware upgrades are free and installed in less than a minute.

XTreme EFIS Documents

XTreme-EFIS Manual

XTreme-EFIS Dimensional Drawing

XTreme-EFIS Firmware Revision

 Rotax 912IS setup instructions

(Above links are to the current documents on MGL Avionics website)

XTreme EFIS Simulator

Download the XTreme-EFIS simulator to get the look and feel of the XTreme-EFIS.

XTreme-EFIS Simulator

XTreme EFIS Firmware

Keep your XTreme-EFIS up to date with the latest features and bug fixes.

XTreme-EFIS Binary (link to current version on MGL Avionics website)

Notes for upgrading the firmware:

Steps to follow:

1) Save your settings to SD Card (MISC menu section)
2) Load the new firmware
3) Load default settings by pressing the left and right most keys on statup. The words “loading default settings” will appear
4) Recall your orginal setting from SD Card (MISC menu section)

Please also see the firmware revision document and XTreme-EFIS manual on how to upgrade the instrument.

Notes for upgrading from Version 1.09 and below:

Please write down all settings BEFORE upgrading your XTreme-EFIS to version 1.15 as the XTreme-EFIS needs to be reset to factory defaults (Version 1.15 and above, now includes a save/recall settings function for future upgrades). After upgrading the XTreme-EFIS to the latest firmware version please load default settings and re-enter all previous recorded settings.

Navidata navigation files must not be encrypted and must be version 5. If you are not sure what version you have please import the navidata into the latest version of the MGL Central program and export it again. The SD card distribution zip file contains Navidata files for certain countries.

Navidata navigation files must not be encrypted and must be version 5. If you are not sure what version you have please import the navidata into the latest version of the MGL Central program and export it again. The SD card distribution zip file contains Navidata files for certain countries.

XTreme EMS

The XTreme EMS is a full featured Engine Monitor that fits a stand

ard 3 1/8″ instrument hole. The XTreme EMS has a high resolution, wide viewing angle 4.3″ sunlight readable (600nits brightness) display.

XTreme-EMS Manual

XTreme-EMS Dimensional Drawing

XTreme-EMS Firmware Revisions

Rotax 912IS setup instructions

(Above links are to the current documents on MGL Avionics website)
XTreme EMS Simulator

Download the XTreme-EMS simulator to get the look and feel of the XTreme-EFIS.

XTreme-EMS Simulator

XTreme EMS Firmware

Please see the firmware revision document and XTreme-EMS manual on how to upgrade the instrument.

XTreme-EMS Binary


Neither MGL Avionics nor Asia Pacific Light Flying can be held responsible for incidents or damage of any kind, caused by incorrect fuel level indication. Installation and operation of the instrument and its related parts is outside our sphere of influence and control. We do not manufacture either the fuel level sender nor the fuel flow sender and are not appointed agents of either.
Please Also Note: Operation of the MGL Avionics XTreme series instruments is the responsibility of the pilot in command of the aircraft. The pilot in command has to make himself/herself familiar with the operation and limitations of the Stratomaster Extreme instrument before commencing ground or flight operations.
These instruments are designed for use in ultralight, microlight, experimental and homebuilt aircraft as well as any aircraft that permit use of such (non certified) instrumentation under general or special operating permits.
The MGL Avionics XTreme series instruments have Not been submitted to CAA or FAA or any of its agencies for any form of certification. Operation and installation of this instrument is subject to the relevant rules and regulations of your country and flight authority.
If any of the above is not acceptable to the pilot in command he/she must refrain from operating the aircraft or remove the MGL Avionics XTreme series instruments from the aircraft before commencing aircraft operations.