yes indeed. The ai engine of FS9 will take into account every movement that is planned inyour area of visibility and will go back 15 minuteds prior to your point in time where you are started the sim.
Say that you start a flight at 00:15 local time. FS will display all traffic from 00:00 onwards.
That's why it can be very busy in the sim in the first 15 minutes.
When a flightplan has a fixed arrival time FS will try at all costs to get it done in time.
This might cause crashing aircraft coming down from 20000 ft or flocks of aircraft arriving at an airport at the same time.
I usually use the first 15 minutes to do my checklists, grab a cup of coffee and setup the aircraft. Then the rush hour is about done and I can get on my way.
Kind regards,
Tom vd Horst
World-of-AI.
www.world-of-ai.com