A Guide to the Local Marine Board Examinations of Masters and MatesSimpkin, Marshall&Company, 1875 - 216페이지 |
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altitude Sun's lower bearing by compass Certificate chronometer column common logarithms compass bearing compass course contrary names Corr correct magnetic courses Cosine Course and Distance current set curve fix Decl Declination DEVIATION-PAPER Diff distant object Divide dotted line dunnage East error of compass eye 18 feet February Filey Bay Greenwich date height of eye Hour angle Index error Knots line that goes longitude by chronometer lower limb North Master Mate mean noon meridian altitude Sun's miles Multiply noon at Greenwich observed meridian altitude P.M. at ship P.M. tides Parallel Sailing point in lat required the deviation Required the latitude Required the longitude Required the true Secant ship's head Signals Sine South Standard Comp Standard Compass subtract the less sun's bearing Sun's lower limb supposing the variation Table 24 tion True alt True altitude True amp true azimuth vertical line West zenith distance