Big Flyrs answer
Here is how you fly a IFR flight in class G.
You just do it. Say vis is 1/2 mile so it is IFR right. I can take off from any class G airport and say fly at 1100 feet(below Class e) punch in and out of clouds. follow a road or navigate to an airport that is class G (with navaids) and land. If uncontrolled airspace goes up high enough you could shoot an instrument approach into an uncontrolled airport without ever turning on the com radio and be PERFECTLY LEGAL (stupid though).
Many controlled airports go to class G at night or when tower is closed so it is POSSIBLE. That is the issue is it possible and legal YES. Practical, safe and done often, no.
Here is how you fly a IFR flight in class G.
You just do it. Say vis is 1/2 mile so it is IFR right. I can take off from any class G airport and say fly at 1100 feet(below Class e) punch in and out of clouds. follow a road or navigate to an airport that is class G (with navaids) and land. If uncontrolled airspace goes up high enough you could shoot an instrument approach into an uncontrolled airport without ever turning on the com radio and be PERFECTLY LEGAL (stupid though).
Many controlled airports go to class G at night or when tower is closed so it is POSSIBLE. That is the issue is it possible and legal YES. Practical, safe and done often, no.