Andy Ross writes > >Newer HSIs that are driven by RNAV or GPS engines don't have this >limitation, and I'm pretty sure they display distance generically. >Someone correct me if I'm wrong.
As far as I know both cross track error and heading to waypoint are included in all GPS units. Which one is used I don't know. FWIW crosstrack error on a 'spherical earth' was computed in 'some' navigation instruments long before 'digital' computers were used in these devices. < trig values for an angle can be determined from an 'analog' device and the rest is just 'gearing' ( think circular sliderule ) > Don't know if any of these were ever used in aircraft though Cheers Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
