A guide book to the Local marine board examination. The ordinary examination. [With] The requisite elements from the Nautical almanac for 1865, for the exercises in Ainsley's Guide book |
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... Difference of Latitude .. 54 56 62 70 To Find Meridional Difference of Latitude 71 To Find the Latitude in .. To Find Middle Latitude .. 72 73 To Find the Difference of Longitude To Find the Longitude in .. 73 75 76 78 84 89 Correcting ...
... Difference of Latitude .. 54 56 62 70 To Find Meridional Difference of Latitude 71 To Find the Latitude in .. To Find Middle Latitude .. 72 73 To Find the Difference of Longitude To Find the Longitude in .. 73 75 76 78 84 89 Correcting ...
Страница 62
... comparison of the position of his Zenith with relation to the heavens with the known position of the Zenith of 62 NAVIGATION - DEFINITIONS . Navigation-Definitions of, Preliminary Rules in Navigation-To Find Difference of Latitude.
... comparison of the position of his Zenith with relation to the heavens with the known position of the Zenith of 62 NAVIGATION - DEFINITIONS . Navigation-Definitions of, Preliminary Rules in Navigation-To Find Difference of Latitude.
Страница 66
... latitude of a place A ' , and is marked N. , because A ' is to the north of W M ' E : whilst the latitude of B ' is ... DIFFERENCE OF LATITUDE ( abbreviated diff . lat . ) between two places is the arc of a meridian included between ...
... latitude of a place A ' , and is marked N. , because A ' is to the north of W M ' E : whilst the latitude of B ' is ... DIFFERENCE OF LATITUDE ( abbreviated diff . lat . ) between two places is the arc of a meridian included between ...
Страница 67
... difference of latitude in solving problems in Mercator's sailing , and for constructing charts on Mercator's projection . THE MERIDIONAL DIFFERENCE OF LATITUDE is the quantity which bears the same ratio to the difference of latitude that ...
... difference of latitude in solving problems in Mercator's sailing , and for constructing charts on Mercator's projection . THE MERIDIONAL DIFFERENCE OF LATITUDE is the quantity which bears the same ratio to the difference of latitude that ...
Страница 68
... DIFFERENCE OF LONGITUDE between two places is the arc or portion of the equator included between their meridians , or , which is the same thing , the corresponding angle at the pole . To measure , therefore , the diff . of longitude of ...
... DIFFERENCE OF LONGITUDE between two places is the arc or portion of the equator included between their meridians , or , which is the same thing , the corresponding angle at the pole . To measure , therefore , the diff . of longitude of ...
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A.M. at ship acct altitude sun's L.L. anchor bearing by compass charter-party chronometer column common logarithms compass course cosec cosine course and distance cyphers daily decimal point decl declination deviation difference of latitude difference of longitude dunnage East equator error EXAMINATION EXAMPLES FOR PRACTICE eye 18 feet fast fathoms fixed light Flags given Green Greenwich date Greenwich mean haul height of eye helm high water hour-angle Hourly diff index corr index correction June leeway London Bridge longitude by chronometer mantissa master miles minutes Multiply Nautical Almanac Norie North observed altitude sun's observed meridian altitude P.M. tides parallel sailing Polar dist port Raper required the latitude Rule sail secant Semi-diameter semid set by compass sextant side Signal sine South starboard subtract True altitude true azimuth true course Variation 2 points vessel West wind yard
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Страница 303 - 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.
Страница 302 - ... abaft the beam on the starboard side, and of such a character as to be visible at a distance of at least two miles.
Страница 309 - The said green and red side lights shall be fitted with inboard screens projecting at least three feet forward from the light, so as to prevent these lights from being seen across the bow.
Страница 302 - On the starboard side a green light so constructed as to show an unbroken light over an arc of the horizon of...
Страница 302 - In the following rules every steam vessel which is under sail and not under steam is to be considered a sailing vessel, and every vessel under steam, whether under sail or not, is to be considered a steam vessel. The words "steam vessel" shall include any vessel propelled by machinery. A vessel is "under way...
Страница 314 - 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.
Страница 309 - Whenever, as in the case of small vessels under way during bad weather, the green and red side lights cannot be fixed, these lights shall be kept at hand, lighted and ready for 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...
Страница 303 - Lights required for other Vessels ; but shall, if they do not carry such Lights, carry a Lantern having a Green Slide on the One Side, and a Red Slide on the other Side ; and on the Approach of or to other Vessels, such Lantern shall be exhibited in sufficient time to prevent Collision, so that the Green Light shall not be seen on the Port Side, nor the Red Light on the Starboard Side.
Страница 336 - The names of every seaman or apprentice who ceases to be a member of the crew, otherwise than by death, with the place, time, manner, and cause thereof.
Страница 302 - ... which is under steam, whether under sail or not, is to be considered a ship under steam. Rules concerning Lights (a).