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INTRODUCTION TO NAVIGATION
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accuracy altitude anchor axis azimuth azimuth angle bearing buoys celestial body celestial meridian celestial navigation celestial sphere chart Check chronometer compass card compass error computed Corr correction dead reckoning declination degrees depth determined difference direction distance DR position DR track drop bearing earth equal Greenwich gyro gyrocompass height horizon hour angle hour circle intersection labeled landmark latitude light lines of position located longitude loran Loran-A low tide magnetic compass measured Mercator Mercator chart meridian angle minutes moon Nautical Almanac nautical miles Naval navi navigational aids NAVSAT observed obtained Oceanographic Office parallel perpendicular piloting plane plotting polar pole provides pulse recurrence rate radar radio radio direction finder recorded reference station rotation running fix sextant ship ship's position signal sounding speed star subordinate station tabulated tangent tidal current tion triangle vertical visibility zone