An airport tower closes at 1600 hours:

  • Does the extension (class E from surface up) airspace becomes non existing?
  • Can I fly through since the tower is closed?
  • $\begingroup$ Maybe, when it says "closes at 1600 hours", is that local time, or UTC? Have you read the AF/D (now called the Chart Supplement)? It may be E or G depending on what the CS says. $\endgroup$ – Ron Beyer Jan 18 '18 at 5:05
  • $\begingroup$ It depends on the jurisdiction. $\endgroup$ – GdD Jan 18 '18 at 9:08
  • $\begingroup$ Let me add a little more info. This is a helicopter manufacturing plant (Sikorsky ).. When the tower closes ,all flying is suspended. It's a class D airport with the E extension. Closes at local time. $\endgroup$ – joe Jan 18 '18 at 13:57
  • $\begingroup$ Welcome to aviation.SE! Which country or regulations are you asking about? And if you have a specific airport as an example, please tell us which one it is. It's best to edit your question to add new information. $\endgroup$ – Pondlife Jan 18 '18 at 15:34
  • $\begingroup$ For the US, from here: "When a Class C or Class D surface area is not in effect continuously (...) , the surface area airspace will change to either a Class E surface area or Class G airspace. In such cases, the “Airspace” entry for the airport in the Chart Supplement U.S. will state “other times Class E” or “other times Class G.” When a part-time surface area changes to Class E airspace, the Class E arrival extensions will remain in effect (...)" $\endgroup$ – mins Jan 18 '18 at 16:37

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