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Old 08-10-2015, 07:33 PM
Pat Hatch's Avatar
Pat Hatch Pat Hatch is offline
Join Date: Jun 2006
Location: Vero Beach, FL
Posts: 819
Default Mounting the Magnetometer in the Wingtip

So we're talking about where to mount the two magnetometers in Bob Lund's RV-8. Jason Smith at Aerotronics suggested that a tail mount of a Garmin magnetometer is not passing the interference check during calibration (we're talking RV-8--tail location is fine in my RV-6). Steve at GarminX was also very encouraging. So we decided to try a wingtip mount in spite of the heavy iron pipe that is in the leading edge of the ailerons. That was a concern. Here are some pictures:

And the GRT Mini magnetometer installation in the opposite wint tip:

We did the Garmin Magnetometer Interference Test today for the first time and it passed! The highest interference level we got was 64% of the limit during full left aileron deflection, but apparently it was still well within the limits. We will report later on the GRT magnetometer results when we get to it.

We rolled the airplane out of the hangar today for the first time, ready for first engine start in the morning. More later.

Pat Hatch
RV-4 (Gone to RV heaven)
RV-6 (N44PH - Flying)
RV-7 (Sold)
RV-8 (Helped build Bob Lund's airplane) Trim Relay Boards/Flap Actuators (Photography)
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