On commercial jets, we have to do the compass swing twice. Once with all avionics on. and once with essentials. we document the data on a plate just under the compass showing the deviations in Degrees. Our deviation max is 5 deg.
> On Apr 17, 2015, at 10:29 PM, Gene Essman via KRnet <krnet at list.krnet.org> > wrote: > > When you swing the compass, turn everything on that will be running in > flight, the compass will move to its' NEW normal and set it to that. You're > just proving you are smarter than magnets and linseed oil. Of course I'm as > dumb as linseed oil so take it for what it cost you. > > > > Okay, I need the best of experience and knowledge.... I have a panel done > and ready to install.... someone advised that the compass, which is in the > top middle of all the rest, Elec T&B, voltmeter, gas gauges, pump > switches,(2) , water temp, all electric.... , would not operate correctly > with all the adjacent electrical connections??? Well DUH, why didn't I > think of that???? Need some answers... jw >
