Take charge of marine vessels on the high seas.
Locates position and directs course of airplane on international flights, using navigational aids, such as charts, maps, sextant, and slide rule: Establishes position of airplane by use of navigation instruments and charts, celestial observation, or dead reckoning. Directs deviations from course required by weather conditions, such as wind drifts and forecasted atmospheric changes. Utilizes navigation aids, such as radio beams and beacons, when available. Keeps log of flight. Must be licensed by Federal Aviation Administration.