• Journal of the Korean Society for Aviation and Aeronautics
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• v.7 no.1
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• pp.57-64
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• 1999

The air transportation industry in Korea has grown very fast in aspect of the transportation scale as much as entering within the tenth in the world. However, as compared with the air transportation industry, the civil aviation pilots training has been performed at very low level in quantity and quality because of the high cost of pilots training, nation security, limited airspace use and falling behind of the science technology in relation to the aviation industry. In result, the number of airline pilots became lower than actual demands of both airlines, KAL and ASIANA. This produced many foreign captains employed, airline pilots overloaded and finally affected flight safety. In this paper, it was studied the actual reality and problems of civil aviation pilots training and presented the encouraging policies for civil aviation pilots training in Korea.

• Journal of Advanced Navigation Technology
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• v.24 no.6
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• pp.508-514
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• 2020

Geofence defines the area that UAS should not enter or exit to ensure the safety of their operations, and is considered as one of critical capabilities of the UTM (UAS traffic management) system. In this study, a geofence simplification method using modified perpendicular algorithm is proposed. The performances of the proposed geofence simplification method were evaluated with actual building data, and the evaluation results confirmed that the number of vertices can be effectively reduced while minimizing the spatial size of the geofence.