wirejock
Well Known Member
Dynon ADAHRS
Manual says to align it to the airplane within a degree in pitch, roll & yaw. Pitch and roll are no problem. I got within a tenth with a few washers as shims.
Yaw is tricky. My phone has a compass, but it flip flops one degree constantly. I could be off be 1 degree just in device error.
I have a super duper compass but looking at it accurately is pretty difficult. My ADAHRS shelf is in front of F707 up between the stringers under the turtle deck. Difficult to get a device in there to measure deviation. I could probably point a borescope at it.
Laser level could work but measuring to a laser line isn't accurate to a degree over a small box. One degree over a 4" square is not much.
I should be able to loosen hardware and move it a degree or two without enlarging holes. I just need a reliable way to measure.
None of this is fun laying in the tail cone.
Maybe I'm over thinking it.
Any tips appreciated.
Edit...
I found a more stable phone app. Im only off one degree. I should be able to get dead nuts by loosening the hardware.
Manual says to align it to the airplane within a degree in pitch, roll & yaw. Pitch and roll are no problem. I got within a tenth with a few washers as shims.
Yaw is tricky. My phone has a compass, but it flip flops one degree constantly. I could be off be 1 degree just in device error.
I have a super duper compass but looking at it accurately is pretty difficult. My ADAHRS shelf is in front of F707 up between the stringers under the turtle deck. Difficult to get a device in there to measure deviation. I could probably point a borescope at it.
Laser level could work but measuring to a laser line isn't accurate to a degree over a small box. One degree over a 4" square is not much.
I should be able to loosen hardware and move it a degree or two without enlarging holes. I just need a reliable way to measure.
None of this is fun laying in the tail cone.
Maybe I'm over thinking it.
Any tips appreciated.
Edit...
I found a more stable phone app. Im only off one degree. I should be able to get dead nuts by loosening the hardware.
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