On Sunday 21 January 2007 19:15, John Wojnaroski wrote: > Likewise, not sure where you're going with this. ATC simply reports the > current altimeter setting to the pilot. Above FL180 all altimeters are > set to 29.92 or 1013. Encoding report aircraft altitude, otherwise ATC > relies on what the pilot reports as aircraft altitude.
I did a lot of research when I wrote the code for the encoder and transponder. Unfortunately I didn't note where I found the information. I seem to remember that the encoder encoded the pressure to pressure altitude, _not_ ASL altitude. I'm searching the web right now to try and find info that can confirm this. > > But you might try > > Ref. Aviation Formulary, Ed Williams, www.best.com/~williams/avform.htm > > for data on a standard atmosphere Thanks for the link, I'll look into that. -- Roy Vegard Ovesen ------------------------------------------------------------------------- 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
