I have been in the process of trying to select Avionics for the Arion Lightning than I am building. One thing I noticed for Dynon AHRS install on Skyview is to get it aligned within 1o degree with the aircraft axis. For the life of me I cant see how that level of accuracy could be attained, just aligning the aircraft that closely on the ground would be a challenge. What experience have others had? Wonder why there isn't a software adjustment to compensate for small installation errors?
AHRS Installation
- Thread starter gacoon
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swatson999
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- Oct 6, 2010
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Well, for the pitch attitude, there is an adjustment in the menus. For magnetic direction, there's the calibration process. For roll, it's pretty easy to level the aircraft left-to-right, and shim the ADAHRS if necessary. That only leaves yaw...
I used a cheapy laser level held above the airplane for this part. The laser drew a line from the midpoint of the firewall, through the empennage, to the interior midpoint of the vertical stab. I simply marked where it intersected the AHRS mounting shelf.
You then need a carpenter's square to make a perpendicular reference to that line, because only the front and aft faces of the ADAHRS box are suitable for determining its orientation. The mounting tabs on mine were wavy.