https://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.png00Miami Flight Academyhttps://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.pngMiami Flight Academy2018-06-05 16:23:442018-06-05 16:23:44What designated airspace associated with an airport becomes inactive when the control tower at that airport is not in operation?