David Megginson writes: > > Major A writes: > > > > - The autopilot in the 172 tries to keep the orange heading bug at the > > > top of the directional gyro, period. If you set the DG to the true > > > heading (as you would in the Arctic), then the autopilot uses true > > > > Ever flown a (real) 172 across the North Pole? :-) > > No, but the Arctic starts a long way from the North Pole. Many people > in Canada fly 172's in Northern Domestic Airspace (roughly north of > 60, but it zigzags a lot), where you use true rather than magentic > headings.
FYI This page demonstrates why a magnetic compass is not the necessarily very useful near the pole http://www.geolab.nrcan.gc.ca/geomag/e_nmpole.html Cheers Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
