A Guide to the Local Marine Board Examinations of Masters and MatesSimpkin, Marshall&Company, 1872 - 178페이지 |
도서 본문에서
24개의 결과 중 1 - 5개
55 페이지
... TRUE ALTITUDE . - Apply to the observed alti- tude ; - Index error ; + add ; subtract : Dip for height of eye , Table 5 , subtract : Sun's correction for altitude , Table 18 , subtract : Semidiameter for the date , page 2 of month ...
... TRUE ALTITUDE . - Apply to the observed alti- tude ; - Index error ; + add ; subtract : Dip for height of eye , Table 5 , subtract : Sun's correction for altitude , Table 18 , subtract : Semidiameter for the date , page 2 of month ...
56 페이지
... True Azimuth . Multiply this by 2 and the result is the True Azimuth . NAME THE TRUE AZIMUTH . - The true azimuth is reckoned from the South in North latitude ; and from the North in South lat . Towards the East if A.M. at ship ; but ...
... True Azimuth . Multiply this by 2 and the result is the True Azimuth . NAME THE TRUE AZIMUTH . - The true azimuth is reckoned from the South in North latitude ; and from the North in South lat . Towards the East if A.M. at ship ; but ...
57 페이지
Leonard Allen. NAME THE ERROR . - Looking towards the azimuth from the centre of the compass ; if the true azimuth is to the right of the compass azimuth the error is East ; but if the true is to the left of the compass , the error is ...
Leonard Allen. NAME THE ERROR . - Looking towards the azimuth from the centre of the compass ; if the true azimuth is to the right of the compass azimuth the error is East ; but if the true is to the left of the compass , the error is ...
58 페이지
... true azimuth and error of the compass . Index error + 33 ′′ . d . h . m . Page 2 . 30 4 32 Long . 24 ° 15 ′ W. Dec. 30th 17 ° 27 ′ 16 ′′ } Ship date , Jany . Long . in time + 4 Grh . date Mean T. 30 69 6,0 ) 9,7 0 S. Table 33 . Decl ...
... true azimuth and error of the compass . Index error + 33 ′′ . d . h . m . Page 2 . 30 4 32 Long . 24 ° 15 ′ W. Dec. 30th 17 ° 27 ′ 16 ′′ } Ship date , Jany . Long . in time + 4 Grh . date Mean T. 30 69 6,0 ) 9,7 0 S. Table 33 . Decl ...
59 페이지
... true azimuth and error of compass ; and supposing the variation to be 5 ° 38 ′ E .; required the deviation of the compass . Index error 1 ' 11 " . d . h . m . Ship date , Sep. 16 21 36 Long . 141 ° E. Decl . 16th Long . in time 9 24 - 4 ...
... true azimuth and error of compass ; and supposing the variation to be 5 ° 38 ′ E .; required the deviation of the compass . Index error 1 ' 11 " . d . h . m . Ship date , Sep. 16 21 36 Long . 141 ° E. Decl . 16th Long . in time 9 24 - 4 ...
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자주 나오는 단어 및 구문
altitude Sun's lower apparent ship azimuth and error bearing by compass Certificate chronometer common logarithms corr correct magnetic Cosine Course and Distance Course South Decl Departure Difference of Longitude Divide dunnage error of compass eye 17 feet eye 20 feet fast for mean Fixed greater Green Greenwich date Greenwich mean height of eye Hour angle index error Knots lower limb North magnetic bearing Mate mean noon Mercator's principle miles Multiply noon at Greenwich North of observer P.M. at ship P.M. tide Parallel Sailing point in lat Polar dist Required the Course Required the deviation Required the error Required the latitude Required the longitude Required the true Secant Semidiam ship's head Sine subtract the less sun's bearing Sun's lower limb supposing the variation Table 18 Table 24 Table 33 True alt true altitude True amp true azimuth Variation 1 pt watch 11h zenith distance
인기 인용구
84 페이지 - ... abaft the beam on the starboard side, and of such a character as to be visible on a dark mght, with a clear atmosphere, at a distance of at least two miles. (c.) On the...
86 페이지 - A vessel which, is closehauled on the port tack shall keep out of the way of a vessel which is closehauled on the starboard tack. (c) When both are running free, with the wind on different sides, the vessel which has the wind on the port side shall keep out of the way of the other.
84 페이지 - ... use : and shall, on the approach of or to other vessels, be exhibited on their respective sides in sufficient time to prevent collision, in such manner as to make them most visible, and so that the green light shall not be seen on the port side nor the red light on the starboard side, nor, if practicable, more than two points abaft the beam on their respective sides.
86 페이지 - If two ships under steam are meeting end on, or nearly end on, so as to involve risk of collision, each shall alter her course to starboard, so that each may pass on the port side of the other.
86 페이지 - When two steam vessels are meeting end on, or nearly end on, so as to involve risk of collision, each shall alter her course to starboard so that each may pass on the port side of the other.
84 페이지 - ... from right ahead to two points abaft the beam on the port side, and of such a character as to be visible at a distance of at least two miles.
86 페이지 - If two ships under Steam are meeting end on, or nearly end on, so as to involve risk of collision, the helms of both shall be put to port, so that each may pass on the port side, of the other.
85 페이지 - A vessel under one hundred and fifty feet in length when at anchor shall carry forward, where it can best be seen, but at a height not exceeding twenty feet above the hull, a white light, in a lantern so constructed as to show a clear, uniform, and unbroken light visible all around the horizon at a distance of at least one mile.
110 페이지 - London, (the act of God, the queen's enemies, fire, and all and every other dangers and accidents of the seas, rivers, and navigation, of whatever nature and kind soever, excepted,) unto order or to assigns, he or they paying freight for the said goods at 51.
85 페이지 - ... sufficient time to prevent collision, in such manner as to make them most visible, and so that the green light shall not be seen on the port side, nor the red light on the starboard side. To make the use of these portable lights more certain and easy...