On 25 Dec 2008, at 23:49, John Denker wrote: > Please ask a more specific question. > > Do you need to know something that's not in apt.dat? > (Categories 7, 8, and 9.) > > Are there isolated disagreements between apt.dat and > the ground truth? > > Or systematic disagreements?
Apologies for being vague. What I mean is, for example, EGPH has two ILS-equipped runways - 06 and 24, but no marker beacons defined at all. KSFO has some, but for example, 28L has an OM, while 2R has MM and IM, but no outer. (in nav.dat) I've just checked my SimCharts, and apparently neither EGPH approach plate includes any markers, so presumably the data is right, and the issue is entirely my fault, for thinking that marker beacons were a mandatory part of an ILS setup, when they are apparently installed on a case-by-case basis, and not necessarily as complete sets of OM/MM/ IM, which again I had naively assumed. James ------------------------------------------------------------------------------ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
