Why BlueMAX?

If you fly an Avidyne-equipped Cirrus SR20 or SR22 you almost certainly rely on the MFD to display detailed engine data. The MFD does that job quite well, but the hardware and software was designed over 15 years ago and hasn't changed in that time. The hardware is becoming more expensive to maintain and there is no prospect of any software upgrade in the future.

The BlueMAX adapter enables you to access the same engine data as the MFD uses but stream it wirelessly via Bluetooth to a portable device such as a phone or tablet allowing easier and more versatile ways to view the data. An optional connection can be made to GPS data allowing this to also be streamed to your portable device.


Easy data analysis

BlueMAX logs data in real time to your portable device, eliminating the need to download engine data from your MFD with a USB stick. You can view the data directly on your Android/iOS device or immediately upload it to analysis tools like FlightData and Savvyanalysis.

Flag faulty probes

BlueMAX monitors the data quality from CHT and EGT probes, and will flag those that appear to have bad connections, helping you make informed decisions about whether a high temperature is real or an indication error.

Per-second data logging

Data is logged once per second instead of once every 6 seconds on the Avidyne MFD. This captures short changes in engine parameters and makes post-flight analysis of GAMI sweeps and magneto checks much more useful.

MFD Backup or replacement

With BlueMAX installed a failure of your MFD becomes a minor issue, and if you’re faced with a multi-thousand dollar fee to repair the MFD you may choose to replace it with an iPad and BlueMAX.

In-flight data analysis

Not only is data analysis on the ground easy, but BlueMAX lets you graph the data for your current flight while still in the air! Something changed? See exactly what happened and when.

Customised limits and alerts

BlueMAX allows you to set your own limits on engine parameters. Think 420F is too high for redline CHT? Choose your own. Set caution limits where you want them and be alerted when they are exceeded.

Left/Right tank tracking

BlueMAX enables you to track the contents of each fuel tank in flight. It will prompt you to switch tanks when the imbalance between sides requires it.

Moving map and route

If connected to a GPS source, BlueMAX provides a moving map and route information, with fuel at destination and other information.

Easy installation

BlueMAX is a simple 1 hour installation in most Avidyne and ARNAV Cirrus aircraft. It’s also compatible with many JPI engine monitors.


  • Installation is straightforward - all aircraft require an adapter harness to connect the BlueMAX module to existing connectors.
  • Refer to the installation instructions to identify which harness is needed.
  • If the MFD has been removed a harness is available which plugs into the MFD connector, providing power and data, otherwise a single power wire needs to be run to the breaker panel.
  • In DAU equipped aircraft (those with a glovebox rather than analog engine gauges) the adapter plugs between two existing connectors.
  • In SIU equipped aircraft (those with analog engine gauges on the right of the panel) either new connectors matching the DAU aircraft can be installed, or depending on the age of your aircraft there may be existing connectors that can be used with a pre-made harness,
  • Installation will need to be done by an authorised person (e.g. an A&P.)
  • The time required to install may vary from 1-3 hours depending on aircraft configuration and the experience of the installer.
  • A logbook entry is required and a flight manual/POH supplement is provided.


Production hardware is shipping now, and installation has been approved (see below). Apps for Android and iOS devices are available on the Play Store and the App Store.


Installation of BlueMAX has been approved by EASA, which directly covers all countries in the EASA regulatory structure. This also means it can be installed in other countries that have bilateral agreements with EASA, including Australia, the USA and Canada.

Other countries may also accept EASA approval under a bilateral agreement. The references for this reciprocal acceptance are:

CASR 1998 regulation 21.470 applies. Refer also to CASA AC 21-08, paragraph 5.23 which covers recognition of foreign approvals. The BlueMAX EASA approval meets all the criteria specified.
The BlueMAX installation is a minor change as classified by 14 CFR 21.93(a). AC 43-210A paragraph confirms that an authorized person can perform a minor change with acceptable data, documented by a logbook entry. The EASA approval both provides evidence that it is a minor change, and is also considered approved by the FAA per the FAA/EASA Technical Implementation Procedures for Airworthiness and Environmental Certification, paragrah
The "Technical Implementation Procedures for Airworthiness and Environmental Certification" paragraph 2.13.2(2) provides that approval of a minor change by EASA is considered approved by Transport Canada Civil Aviation.

Applicable Documents


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