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Looigi
Joined: 20 Apr 2015
Posts: 80
Location: Christchurch, New Zealand
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 Posted: Sat Apr 08, 2017 3:57 pm Post subject: Gyro compass adjustment |
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Hi All,
We have just imported a Yak-52 into New Zealand from Italy. He is almost ready for flight, but one job that remains is to do a compass swing.
Our plane has had the ADF system removed. I am not sure if that affects things; I know the systems are sort of tied together.
The direct reading compasses are easy, but does anyone have any data on how to adjust the gyro compass? I have flicked the switch on the control panel to "South" and set the lattitude, but I am thinking I will need to fiddle with it to sort the deviation.
Many thanks
Chris
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wlannon(at)shaw.ca
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| Posted: Sat Apr 08, 2017 9:41 pm Post subject: Gyro compass adjustment |
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The gyrosyn compass is a gyro stabilized magnetic compass and is not tied to
the ADF. First thing is find the compass. Most likely in the aft
fuselage - remote from
electrical interference as much as possible.
It has a corrector unit like the standby compass and is swung in the same
manner but has an additional feature. Once the standard swing is complete
calculate the average algebraic sum of the corrections (+ or -), unlock and
rotate the entire compass in the correct direction to remove that error.
Walt
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