“How may I understand the relationship between a Flight Service Station (FSS) and an Air Traffic Controller (ATC)?”

• Original question found on Quora.
  • The answer is thanks to Paul Mulwitz , “Licensed private pilot, amateur airplane builder and test pilot.”

<aside> 📖 Key vocabulary: Air Traffic Control, ATC, Flight Service, FSS, flight plan, open and close flight plan, visual flight rules, VFR, instrument flight rules, IFR, military towers, civilian towers

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<aside> ☝🏻 “Aircraft flying in the National Airspace System operate under two basic categories of flight: Visual Flight Rules (VFR) and Instrument Flight Rules (IFR). While many different types of flights occur under these two rules, every aircraft that leaves the ground will fall into one, or both, of these categories during the flight.”

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The full answer

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