FS 2004 Real Airlines AI Traffic (USA)
with only USA planes.
This package includes many types of planes -
all optimized for AI (fps friendly) in real
airlines liveries. Most of the planes feature
AIS (Animated Inbuilt Scenery) - they have
animated scenery while parked with engines
turned off. It makes FS2004 very realistic.
More INFO in Readme.txt. By Piotr Sobczak.