Just as a couple of thoughts to add to what Reggie and MSYAIRTRAN have said.
Originally Posted by ReggieF5421
Departure/Arrival ATC will be take over from those points in the real world. Their RADAR screens have a 40nm radius. Anything outside that is controlled by the various centers located throughout the world... the US in this case.
Stars not only help the pilots keep out of harms way... from restricted airspace, mountains, terraine objects, etc, it helps the controllers by knowing just where you, and all other aircraft, are going to arrive on the screen so they can take over and, work you, (vector you) as they say.
Unfortunetly, MS ATC starts vectoring you at about 70nm from the arrival airport that you have set in your plan, which usually prevents you from flying the star anyway. You can work around that, in the default FS ATC, by not replying when center hands you over to Arrival. Acknowledge, but don't transmit the next call to arrival. Just continue to fly the STAR then, once YOU're ready to be vectored, contact ATC at that time...no harm no fowl in FS ATC.
I've used the add-on Radar Contact for years. It let's you fly your flight plan as you have it set up and doesn't start vectoring you until you're inside the terminal space of 40nm. That's because one of the guys who set it up in the first place was an ATC for years and knows exactly how the system is supposed to work. It's about as real as it can get unless you're flying on line and using VATSIM controlers.
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