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PRECISION COMPASS COMPENSATOR

$51.75/Each
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Part# 10-07900
MFR Model# PBB-475

Overview

The vertical card compass is very sensitive to stray magnetic fields within the aircraft. If the compensators of the compass will not bring the compass within tolerances, it will be necessary to install the PBB475 compensator ("balanced balls"). These balls contain magnets which permit the compass to be properly compensated.
Instructions furnished.

Note: These compass compensators are made specifically for the Precision aviation compasses. The mounting holes may not match other compasses.

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Q&A

Q: I have been unable to install a magnetic compass in my tube aircraft due to magnetism. I would like to buy a vertical compass. Will this Compass Compensator negate those magnetic errors?

Per the manufacturer, this should work as long as the magnetic variation is not greater than 20 degrees. It is also recommended to use magnetic shielding with the compass compensator.

Q: How can you use the magnetic shield material on a Vert. Card compass located on top of the dash?

The compass compensator comes with directions for mounting this behind the compass.

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