The Yachtsman's Guide: A Book in Five Parts Written Specially for YachtsmenNew York Navigation School, 1887 - 443 sivua |
Kirjan sisältä
Tulokset 1 - 5 kokonaismäärästä 27
Sivu
... altitude of the sun in the forenoon or afternoon , and how from this to obtain the longitude , by noting the difference in the time thus found and that shown by the chronometer set to Greenwich time ; and this is about all that the ...
... altitude of the sun in the forenoon or afternoon , and how from this to obtain the longitude , by noting the difference in the time thus found and that shown by the chronometer set to Greenwich time ; and this is about all that the ...
Sivu 9
... Altitudes PAGE . . 11 15 23 27 29 31 • 34 35 36 37 38 · 40 45 50 • 52 · 53 Explanation of Semi - diameter , Dip of the Horizon , Parallax and Re- fraction 9 Explanation why Time is gained in sailing East , and lost in sailing West Short ...
... Altitudes PAGE . . 11 15 23 27 29 31 • 34 35 36 37 38 · 40 45 50 • 52 · 53 Explanation of Semi - diameter , Dip of the Horizon , Parallax and Re- fraction 9 Explanation why Time is gained in sailing East , and lost in sailing West Short ...
Sivu 32
... altitude . TO READ OFF AN ALTITUDE . Ascertain by the zero on the vernier ( sometimes marked thus , ( 0 ) , and sometimes as an arrow ) how many degrees and thirds of a degree it has passed on the arc , and then look along the vernier ...
... altitude . TO READ OFF AN ALTITUDE . Ascertain by the zero on the vernier ( sometimes marked thus , ( 0 ) , and sometimes as an arrow ) how many degrees and thirds of a degree it has passed on the arc , and then look along the vernier ...
Sivu 33
... " and the amount will be added to the observed altitude if zero on the vernier is to the right hand of zero on the arc , but it will be subtracted if to the left hand . 6 8 6 5 7 THE SEXTANT . 3 14 THE YACHTSMAN'S GUIDE . 33.
... " and the amount will be added to the observed altitude if zero on the vernier is to the right hand of zero on the arc , but it will be subtracted if to the left hand . 6 8 6 5 7 THE SEXTANT . 3 14 THE YACHTSMAN'S GUIDE . 33.
Sivu 35
... altitude will be observed to the north . When taking an altitude of the sun , cant the instrument from side to side ( that is , oscillate it ) , without removing the eye from the sight - vane or telescope , and the sun's image will ...
... altitude will be observed to the north . When taking an altitude of the sun , cant the instrument from side to side ( that is , oscillate it ) , without removing the eye from the sight - vane or telescope , and the sun's image will ...
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Yleiset termit ja lausekkeet
abaft altitude anchor answer barometer beams bend bight boat bolted boom bottom bowsprit cable called canvas carried chronometer clew clewline compass course course sailed crew cringle deck direction distance east equator fast fore fore-and-aft foresail forestay frame gaff gaff topsail haul head head sails helm Hemisphere hoist hook iron jib topsail keel Keelson keep knot latitude lead leeward light light sail longitude lower luff mainsail mast masthead meridian miles navigation noon observed outhaul pass peak halyards piece of timber plank port rabbet reef reef band reeve rigging rope round rudder rules running running rigging sail scarphed sheave sheet ship ship's shrouds side signal single block spar spinnaker splice standing starboard stay staysail steamer stern storm tack tackle taut tide topmast upper variation vessel weather West wind windward yacht Yachtsman's Guide yard yarns
Suositut otteet
Sivu 140 - ... so constructed as to show a uniform and unbroken light over an arc of the horizon of ten points of the compass, so fixed as to throw the light from right ahead to two points abaft the beam on the starboard side...
Sivu 145 - This Article only applies to cases where vessels are meeting end on, or nearly end on, in such a manner as to involve risk of collision, and does not apply to two vessels which must, if both keep on their respective courses, pass clear of each other.
Sivu 145 - ... other; in other words, to cases in which by day each vessel sees the masts of the other in a line or nearly in a line with her own, and by night to cases in which each vessel is in such a position as to see both the side lights of the other.
Sivu 144 - 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.
Sivu 144 - When two sailing vessels are approaching one another so as to involve risk of collision, one of them shall keep out of the way of the other...
Sivu 146 - Nothing in these rules shall exonerate any ship, or the owner, or master, or crew thereof, from the consequences of any neglect to carry lights or signals, or of any neglect to keep a proper look-out, or of the neglect of any precaution which may be required by the ordinary practice of seamen, or by the special circumstances of the case.
Sivu 142 - ... 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.
Sivu 140 - ... unbroken light over an arc of the horizon of ten points of the compass, so fixed as to throw the light from right ahead to two points abaft the beam on the port side, and of such a character as to be visible on a dark night, with a clear atmosphere, at a distance of at least two miles.
Sivu 150 - In obeying and construing these rules due regard must be had to all dangers of navigation ; and due regard must also be had to any special circumstances which may exist in any particular case rendering a departure from the above rules necessary in order to avoid immediate danger.
Sivu 140 - On the starboard side a green light so constructed as to show an unbroken light over an arc of the horizon of ten points of the compass, so fixed as to throw the light from right ahead to two points abaft the beam on the starboard side, and of sucli a character as to be visible at a distance of at least two miles. (c) On the...