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Date:  3-1-2014
Number of Hours:  10.00
Manual Reference:  N/A
Brief Description:  Build Dynon Remote Compass Mounts

The Dynon remote compass has to be mounted parallel to the Dynon EFIS and has to have the same pitch angle as the EFIS. My electronic level shows a panel pitch angle of 82.4 degrees so after two trips to Lowes for parts (more brass screws, 1" channel aluminum, 1/8" x 2" flat aluminum, and nylon bushings) I fabricated the mounting bracket shown in the first image. I needed to raise the remote compass 1" to give the wires clearance through the bulkhead without drilling more holes and this also gives me exactly 8" of separation from any steel bolts...that's the magic number for the compass to work correctly. I figured this out using a simple hiking compass to check for magnetic deviation...any closer then 8" to a steel bolt and the compass deviates about 2 degrees towards the ferrous bolt. When I test this with the Dynon EFIS connected to the magnetometer I get exactly the same deflection. This bracket is way more robust than it needs to be and it adds 1.5 lbs to the tail but att his point, I don't care. I will install it as is and hope it works.
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Panel mounted Dynon unit is at an 80.4 degree pitch angle

Panel mounted Dynon unit is at an 80.4 degree pitch angle

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Fabricated remote compass mounting bracket with 80.4 degree pitch angle

Fabricated remote compass mounting bracket with 80.4 degree pitch angle

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Installed magnetometer is parallel to the EFIS and exactly 80.4 degrees of pitch

Installed magnetometer is parallel to the EFIS and exactly 80.4 degrees of pitch

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