is required to file a flight plan. must use a visual observer. is required to receive ATC authorization.
Understanding Airspace
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when the weather minimums are below basic VFR. when the associated control tower is in operation. when the associated Flight Service Station is in operation.
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4000 feet AGL. 1200 feet AGL. 1200 feet MSL.
Class B, C, and D. Class E at 700 and Class E at 1200. Class E 700, Class E 1200, and Class E 14500.


