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Old 09-13-2017, 05:18 AM
Snap Snap is offline
Join Date: Aug 2017
Location: Germany
Posts: 8
Default MGL XTreme EMS / EFIS

Hello guys,

since the first day I was thinking about arming my airplane with a Dynon EMS D-10. Lately I found the MGL XTreme EFIS and EMS online which look about absolutely perfect for our purpose.

Does anyone have experience with those units? The EFIS unit looks perfekt for every RV pilot.

Thank you for you hints!


"Nothing is more powerful than an idea whose time has come." (Victor Hugo)
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Old 09-13-2017, 06:01 AM
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sprucemoose sprucemoose is offline
Join Date: Jan 2005
Location: MKE
Posts: 1,480

I have one installed on a non-RV homebuilt. I only have about 10 hours on it but so far I like it. Feel free to PM or email with any specific questions.
Jeff Point
RV-6, RLU-1 built & flying
Tech Counselor, Flight Advisor & President, EAA Chapter 18
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Old 09-13-2017, 12:16 PM
gasman gasman is offline
Join Date: Mar 2007
Location: Sonoma County
Posts: 3,412

I purchased the XTreme when they were first offered. I installed it in my 6A and removed the altimeter. I connected pitot, static, OAT and power. The gps puck went on the glare shield...... This is the base unit. No extras. I was ready to go fly, It gave me everything I needed for VFR flight. In that configuration it does way more than I want to list here, go to their web site for the list. I will say, the horizen is gps based so you CAN fool it under certain movements, but it is so accurate you will be amazed at how quick it will indicate a change. It will get you out of the clouds if ever needed. The screen is VERY bright. I have never had a problem reading the screen and I have a tip up.

When you are ready to add the EMS part, you purchase the unit that mounts on the firewall and run 2, maybe three wires through the firewall to the XTreme. All of the engine connections happen at the firewall...... this is very easy to install, and you buy only what you need.
VAF #897
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Old 09-13-2017, 01:08 PM
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humptybump humptybump is offline
Join Date: Feb 2011
Location: Eastern Shore of Virginia
Posts: 3,024

The MGL Xtreme EFIS with EMS started out as my VFR instrumentation. It's now my IFR backup. It has its own GPS as well as the OAT, AHRS and Magnetometer modules on its CAN bus. It's a very complete system.
- Glen, ESVA
RV-8 FP IFR | Track my RV-8 | 53VG
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Old 09-14-2017, 08:35 PM
F1R F1R is offline
Join Date: Nov 2010
Location: ____
Posts: 561

To use it as an engine monitor, you need to choose an RDAC module from MGL (suitable for your application) that your various probes and sensors feed into. Then that connects to the extreme EFIS with minimal wires.
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Old 09-14-2017, 09:11 PM
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kevinh kevinh is offline
Join Date: Jan 2005
Location: San Mateo, CA
Posts: 1,419

I had a Dynon (which I loved) on my RV. On my current homebuilt project (almost ready for first flight - woot!) I opted for MGL. I haven't flown with it yet but _very_ slick on the ground and great bang per buck.
-kevinh, Track my RV-7A, flying, alas, sold in 2013 after 450ish hours. (I'm now building something different)
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Old 09-15-2017, 09:56 AM
merlin3 merlin3 is offline
Join Date: Jul 2014
Location: ohio
Posts: 109

I have the mgl extreme installed along with the challenger lite. The challenger lite has built in ahrs but i havent installed the extra ahrs sensor i have yet. How do you get the attitude to work on the extreme off gps? Mine just says not attitude or something.
New owner of an RV-4
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