Ok! I have downloaded all the AI Projects Aircrafts, all the "Most realistic AI-Routes" flightplans, I have ttools and all the stuff needed ... but I have still too few liveries to set-up a realistic world AI environment!Not considering MyTraffic (it's simply a repackaging of AIProjects's stuff), any suggestions about authors and sites (not general ones, e.g. avsim,flightsim...) where I could find aircrafts suitable for AI traffic.TIA

You will find a huge amount of PAI liveries here: http://www.pai.simairport.com/PAI%20Aircraft%20Library/Did you take a look into the PAI unofficial files? And FSPainter?This is nice, too:http://www.ai-aardvark.com/Regards,Claudius