A B C D E F G H I M N O P R S T U V
Da De Di
Means an airspace of defined dimensions within which activities dangerous to the flight of aircraft may […]
A Deconfliction Service is a surveillance based ATS where, in addition to the provisions of a […]
Direction Indicator (DI) is a flight instrument used in an aircraft to inform the pilot of […]
DI means Direction Indicator. See Heading Indicator for details. AI Means Attitude Indicator.