Aeronautics Aeronautics (from Greek aero which means air or sky and nautis which means sailor, i.e. sailor of the air or sky) is the science involved with the study, design, and manufacture of flight-capable machines, or the techniques of operating aircraft. While the term—literally meaning "sailing the air"—originally referred solely to the science of operating the aircraft, it has since been expanded to include technology, business and other aspects related to aircraft.
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