MGL Avionics Electronic Compass - Zenith Aircraft Builders and Flyers2024-03-29T12:28:50Zhttps://zenith.aero/forum/topics/mgl-avionics-electronic-compass?commentId=2606393%3AComment%3A568313&feed=yes&xn_auth=noAn interesting question. If t…tag:zenith.aero,2017-06-28:2606393:Comment:5752052017-06-28T13:24:10.673ZStan Cooperhttps://zenith.aero/profile/StanCooper
<p>An interesting question. If the "magnetic direction indicator" can be demonstrated to have less than ±1° deviation on any heading, a deviation card would be superfluous. Since you can't fly the plane before the inspection and signoff, you can't perform the self-calibration flight. I can almost guarantee that there will be deviations of up to 10° before the self-calibration flight (at least that was true of my installation).</p>
<p>Catch 22.</p>
<p>An interesting question. If the "magnetic direction indicator" can be demonstrated to have less than ±1° deviation on any heading, a deviation card would be superfluous. Since you can't fly the plane before the inspection and signoff, you can't perform the self-calibration flight. I can almost guarantee that there will be deviations of up to 10° before the self-calibration flight (at least that was true of my installation).</p>
<p>Catch 22.</p> My inspection is coming up an…tag:zenith.aero,2017-06-27:2606393:Comment:5752732017-06-27T19:44:41.885ZPaul Sandershttps://zenith.aero/profile/ukpylot
<p>My inspection is coming up and I was wondering if the "no deviation card required" is really true in the DAR/FAA's eyes. Of course I can't do a self-calibration flight until after.signoff..... just wondering if I should make a card based on the on the ground readings or not.</p>
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<p>I'm loving the iEFIS setip from MGL in general.</p>
<p>My inspection is coming up and I was wondering if the "no deviation card required" is really true in the DAR/FAA's eyes. Of course I can't do a self-calibration flight until after.signoff..... just wondering if I should make a card based on the on the ground readings or not.</p>
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<p>I'm loving the iEFIS setip from MGL in general.</p> Yep, Ranier is a genius! I en…tag:zenith.aero,2017-05-21:2606393:Comment:5683132017-05-21T03:53:22.596ZJoe Harringtonhttps://zenith.aero/profile/JoeHarrington
<p>Yep, Ranier is a genius! I ended up installing a different brand of efis in my 750, but I have owned MGL equipment in a couple of my other planes. I loved my Stratomaster Extreme and the other MGL products that I had. I believe MGL is the most technologically advanced EFIS equipment of all the major players. Keep us posted on its performance.</p>
<p>Yep, Ranier is a genius! I ended up installing a different brand of efis in my 750, but I have owned MGL equipment in a couple of my other planes. I loved my Stratomaster Extreme and the other MGL products that I had. I believe MGL is the most technologically advanced EFIS equipment of all the major players. Keep us posted on its performance.</p> With the SP-6B magnetometer a…tag:zenith.aero,2017-05-20:2606393:Comment:5682962017-05-20T23:22:17.700ZStan Cooperhttps://zenith.aero/profile/StanCooper
<p>With the SP-6B magnetometer and AV-1 Infinity display installed, I flew the Zodiac to the Quality Sport Planes open house in Cloverdale on May 13 without flying the self-calibration flight, and noticed the compass was as much as 10 degrees off on some headings. Today the weather was perfect, so I performed the self-calibration flight over the west Marin coast near Stinson Beach, and after calibration the compass tracked the DG precisely. Although the DG had precessed about 4 degrees, the…</p>
<p>With the SP-6B magnetometer and AV-1 Infinity display installed, I flew the Zodiac to the Quality Sport Planes open house in Cloverdale on May 13 without flying the self-calibration flight, and noticed the compass was as much as 10 degrees off on some headings. Today the weather was perfect, so I performed the self-calibration flight over the west Marin coast near Stinson Beach, and after calibration the compass tracked the DG precisely. Although the DG had precessed about 4 degrees, the compass and DG showed the same 4 degree difference on a number of headings throughout 360 degrees.</p>
<p>It's amazing.</p>
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<p>Here's downtown San Francisco showing the western span of the bay bridge enroute from Oakland to Stinson Beach.</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2171041361?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/2171041361?profile=RESIZE_1024x1024" class="align-full" width="721"/></a>...and here's the panel on the way to Stinson Beach via the golden gate.</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2171041434?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/2171041434?profile=RESIZE_1024x1024" class="align-full" width="721"/></a></p>