SkyView - Dynon Avionics

System Planningferrous material such as electric turn coordinators and control surfaces). Thus, you must avoidmounting the module close to sources of dynamic magnetic fields, avoid wires that carry largeamounts of current, and use non-magnetic fasteners for installation. Dynon’s general rule ofthumb is that 1 to 2 feet between the module and sources of magnetic fields is generally goodenough, but 2 or more feet is better.Use of stainless steel mounting hardware is not recommended as it is not alwaysnon-magnetic.Move a handheld compass throughout the space surrounding your intendedlocation to get a rough idea of the suitability of the area. Note that this test shouldbe done with major aircraft systems operating (e.g., strobe lights and radios on)because some systems can cause magnetic interference. If the compass needledeviates significantly from magnetic North or cycles back and forth, the location isnot ideal for ADAHRS installation.Figure 2–ADAHRS Installation OrientationAn ADAHRS module should be mounted within one degree of parallel to all three aircraft axes,with the pneumatic fittings facing toward the front of the aircraft. The module’s mounting tabsmust be on the bottom. The label must be on the top. Figure 2 shows the correct orientation ofthe ADAHRS as it would appear if you were above the aircraft, looking down at it. The modulewill not operate properly if it is rotated or inverted in any other orientation.SkyView System Installation Guide - Revision J 2-5