On Wed, 2007-01-03 at 15:36 -0500, John Denker wrote: > First, some background information. Suppose we are up in the air, > 10 nm west of KXYZ airfield (which is colocated with the XYZ vortac). > 1) If we were inbound to the field, I would report our position > as 10 nm west, inbound on the 090 radial. > 2) If we were outbound from the field, I would report our position > as 10 nm out on the 270 radial.
This may seem a nit. I had the following quote "drilled" into my mind by Don Berman in one of his well know Instrument Written Ground School seminars. "Radials eminate from the station; direction of flight has nothing to do with location." So 2) is correct, but 1) is a contradiction. Don would report for 1) 10 nm out, inbound on the 270 radial (West is redundant). The reason he drilled us on this is it a very common miss on both the Instrument and Instrument Instructor Written exams. This distinction is even more important in understanding a hold clearance that is not on any chart. So if we are to redo the location-in-air popup, lets make sure we are not reinforcing a common mistake. This is completely consistent with your later comment: > To summarize: With rare exceptions, locations are specified using the > bearing /from/ the reference. since radial have to do with location, not heading. Best regards, Dave -- Dave Perry <[EMAIL PROTECTED]> ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
