Compass Error... Frame is magnetic

My wet compass is off about 15 degrees. The steel tube frame is magnetic.

Anyone had or solved this problem?

The wet compass is off from the Dynon 15 degrees.

The Dynon's magnetometer is installed behind the baggage compartment.

The compass reads correct away from the airframe, but moves in error when placed near the frame work.

I have had some luck degaussing in the past by separating the two wires in an AC load (angle grinder or skilsaw) and wrapping one of the wires around the part. I will probably try this before installing the windshield.

Steven Winn

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Permalink Reply by Steven Winn on October 27, 2012 at 7:02pm

Solved the problem. Made a de-gaussing coil.

Here:

Compass error fixed

Permalink Reply by Steven Van Eijken on December 25, 2012 at 6:08pm

opened the end of a small de-mag bought from aircraft spruce and ran it along all the tubing until the compass read true, then performed compass swing and all good.

Permalink Reply by David Orr on December 28, 2012 at 11:57am

Call a local TV repair shop and see if you can borrow a picture tube degaussing coil and go over the tubes with it.

Permalink Reply by Jimmy Young on December 29, 2012 at 4:58am

Steven Van Eljken,

You mention you "opened the end of a small de-mag bought from Aircraft Spruce". Are you talking about their little $4 unit that magnetizes & demagnetizes screwdrivers?

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