Well, right. They are apparently a lot more common than I gave them credit for--but it does seem that they tend to be at airports one doesn't frequent with a 172. But as many FG users are flying airline- style aircraft (and thus likely using these airports), it does become relevant.
And the other problem is that if you've made the decision to support all of these approaches with NAVAIDS in Flightgear, then you've already made the decision to do it right--because these runways will all have published approach procedures that the users will have access to. Thus you cannot require them to follow some alternate procedure without published documentation. So even if there are only 10 such instances, you're pretty much stuck doing it correctly. I do agree with JD in that respect. TB On Sep 15, 2009, at 10:50 PM, John Denker wrote: > On 09/15/09 20:17, I wrote: > >> Of the 3050 ILSs in section four of my copy of nav.dat, >> 404 of them, i.e. more than 13% of them, are reversible. > > FWIW if we restrict attention to US airports, i.e. > having ICAO identifiers of the form K..., then 276 > of the ILSs are reversible i.e. more than 23% of > the 1172 total ILSs. That's 138 pairs if you want > to count by pairs. > > The higher percentage stands to reason, given the > high density of airports and air traffic in the US, > and the paucity of available ILS frequencies. > > Bottom line: These critters are not rare. > > Getting FGFS to handle them properly is worth a bit > of effort. > > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry® Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart > your > developing skills, take BlackBerry mobile applications to market and > stay > ahead of the curve. Join us from November 9-12, 2009. Register > now! > http://p.sf.net/sfu/devconf > _______________________________________________ > Flightgear-devel mailing list > Flightgear-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/flightgear-devel ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
