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A.M. at ship altitude Sun's lower apparent ship bearing by compass Bell in Fog Certificate chronometer common logarithms Comp compass course corr correct magnetic Cosine Course and Distance Decl Declination Divide dunnage East error of compass eye 18 feet eye 20 feet fast for mean Fixed Flags Gong in Fog Green Greenwich date Greenwich mean height of eye Hour angle hourly diff inches index error Knots Leeway Light vessel lower limb North magnetic bearing Master Mate mean noon miles Multiply noon at Greenwich P.M. tide Parallel Sailing Pennant Polar dist Required the Course Required the deviation Required the error Required the latitude Required the longitude Secant ship's head Signals Sine South Steam Ships subtract the less Sun's bearing Sun's lower limb supposing the variation Table 24 Table 33 True alt True amp true azimuth Variation 2 pts vertical line West zenith distance
Page 104 - ... 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...
Page 106 - 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.
Page 104 - ... 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.
Page 106 - 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.
Page 106 - 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.
Page 104 - ... 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.
Page 106 - 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.
Page 105 - 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.
Page 129 - 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.
Page 105 - ... 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...