The installation instructions refer to trying to get the pitch alignment to be accurate to within 1 degree between the remote compass and the main unit mounted in the panel. Can we take the front mounting bezel of the D6 unit to be the reference for pitch of that unit. I.e. is the internal stuff aligned to the front bezel?
I would assume that is so, otherwise how would we know what to align the magnetometer. I plan on putting a protractor level across the front of the D6, measuring the angle, and setting the pitch of the remote compass to match as best as I can. I have access to lasers and optical instruments and can do it to much greater accuracy if necessary, but how accurate are the internals of the D6 aligned to the mechanical case of the D6 anyway.
Another question, how accurate does the remote magnetometer have to be aligned in the roll and yaw axes to the D6. Roll would be relatively easy, using the same level in the orthogonal direction across the top of the bezel of the D6 to establish the reference, and then across the top of the case of the remote compass (parallel to the long direction of the aircraft wings) to level the remote compass along its roll axis. The yaw axis could be the most difficult. I could establish the centerline of the aircraft and align to that, but that assumes that the instrument panel is perpendicular to the centerline of the aircraft. Of course, I could also measure the tilt of the instrument panel and take that into consideration.
In summary, I would be good to have knowledge about what remote compass mounting alignment "errors" are calibrated out during the ground and in-flight calibrations and just how much these errors will affect the final accuracy of the compass.
I would assume that is so, otherwise how would we know what to align the magnetometer. I plan on putting a protractor level across the front of the D6, measuring the angle, and setting the pitch of the remote compass to match as best as I can. I have access to lasers and optical instruments and can do it to much greater accuracy if necessary, but how accurate are the internals of the D6 aligned to the mechanical case of the D6 anyway.
Another question, how accurate does the remote magnetometer have to be aligned in the roll and yaw axes to the D6. Roll would be relatively easy, using the same level in the orthogonal direction across the top of the bezel of the D6 to establish the reference, and then across the top of the case of the remote compass (parallel to the long direction of the aircraft wings) to level the remote compass along its roll axis. The yaw axis could be the most difficult. I could establish the centerline of the aircraft and align to that, but that assumes that the instrument panel is perpendicular to the centerline of the aircraft. Of course, I could also measure the tilt of the instrument panel and take that into consideration.
In summary, I would be good to have knowledge about what remote compass mounting alignment "errors" are calibrated out during the ground and in-flight calibrations and just how much these errors will affect the final accuracy of the compass.