A Guide to the Local Marine Board Examinations of Masters and MatesSimpkin, Marshall&Company, 1872 - 178 sider |
Andre utgaver - Vis alle
A Guide to the Local Marine Board Examinations of Masters and Mates Leonard Allen Uten tilgangsbegrensning - 1872 |
A Guide to the Local Marine Board Examinations of Masters and Mates Leonard ALLEN Uten tilgangsbegrensning - 1875 |
Vanlige uttrykk og setninger
A.M. at ship altitude Sun's lower apparent ship azimuth and error bearing by compass Bell in Fog Certificate chronometer common logarithms compass course corr correct magnetic Cosine Course and Distance Decl Declination Divide dunnage error of compass eye 17 feet fast for mean Fixed Flags greater Green Greenwich date Greenwich mean Half true height of eye Hour angle hourly diff index error Knots leeway Light vessel lower limb North magnetic bearing Mate mean noon Mercator:-Diff Mercator's principle meridian altitude miles Multiply noon at Greenwich P.M. tide Parallel Sailing 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 Signals Sine subtract the less sun's bearing Sun's lower limb supposing the variation Table 24 Table 33 True alt true altitude True amp true azimuth vertical line West zenith distance
Populære avsnitt
Side 84 - ... 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...
Side 86 - 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.
Side 84 - ... 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.
Side 86 - 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.
Side 86 - 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.
Side 84 - ... 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.
Side 86 - 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.
Side 85 - 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.
Side 110 - 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.
Side 85 - ... 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...