[Flightgear-users] Scenery Questions

[RMcN]

Making headway!   I have Taxidraw working and have updated my airport definition and want to get it into flightgear.  The Taxidraw tutorial says to submit it, which I will after I visually verify a few things and wait for a scenery rebuild :-(   The other option is to rebuild the scenery myself which does not look inviting since I am running Windows and using available binaries.  :-(   So I've played around some more since Taxidraw has a menu item to export the beacon which is one of the problems I am correcting.  I run it, choose the scenery tile and viola the beacon has moved.  Inspecting the STG file in the SCENERY folder tree there are definitions for the BASE.BTG which is zipped (must be the actual scenery tile definition), the airport I'm updating KPHN.BTG which is zipped (must be the actually used airport definition) and object definitions for the Beacon and Windsocks which are standard object definitions like I have been manipulating in the OBJECT tree to add buildings, etc.  Using the UFO makes this much easier!   So what is the APT.DAT file in the AIRPORTS folder used for? Flightgear won't start without it and modifying it does not change the airport that I can see.    Is there a process to just update the KPHN.BTG file?   Thanks for all the help.   Ray KPHN