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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Side 63
... equator to the poles ; that is , such a figure as would be produced if a hoop were slightly flattened by pressure , and then made to revolve about the shortest diameter thus produced . The shortest diameter ( that which joins the poles ) ...
... equator to the poles ; that is , such a figure as would be produced if a hoop were slightly flattened by pressure , and then made to revolve about the shortest diameter thus produced . The shortest diameter ( that which joins the poles ) ...
Side 64
... EQUATOR ( from Latin æquare to divide into equal parts ) , called also by seamen the Line , is a great circle circumscribing the earth , every point of which is equally distant from both poles , as W M ' E ; and dividing the globe into ...
... EQUATOR ( from Latin æquare to divide into equal parts ) , called also by seamen the Line , is a great circle circumscribing the earth , every point of which is equally distant from both poles , as W M ' E ; and dividing the globe into ...
Side 65
... Equator . At all places on this circle the sun rises at 6h A.M. , and sets at 6h P.M. , all the year round ; the days and nights are therefore equal , being 12h each . THE MERIDIAN of any place is a semi - circle passing through that ...
... Equator . At all places on this circle the sun rises at 6h A.M. , and sets at 6h P.M. , all the year round ; the days and nights are therefore equal , being 12h each . THE MERIDIAN of any place is a semi - circle passing through that ...
Side 66
... equator . As the latitude begins at the equator ( lat . o ° ) , and is reckoned thence to the poles ( latitude 90 ° ) , where it terminates , therefore the greatest latitude a place can have is 90 ° , and all other places must have ...
... equator . As the latitude begins at the equator ( lat . o ° ) , and is reckoned thence to the poles ( latitude 90 ° ) , where it terminates , therefore the greatest latitude a place can have is 90 ° , and all other places must have ...
Side 67
... equator . The lengths of small portions of the meridian thus increased , expressed in minutes of the equator , are called meridional parts ; and the meridional parts for any latitude is the line , expressed in minutes of the equator ...
... equator . The lengths of small portions of the meridian thus increased , expressed in minutes of the equator , are called meridional parts ; and the meridional parts for any latitude is the line , expressed in minutes of the equator ...
Vanlige uttrykk og setninger
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
Populære avsnitt
Side 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.
Side 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.
Side 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.
Side 302 - On the starboard side a green light so constructed as to show an unbroken light over an arc of the horizon of...
Side 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...
Side 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.
Side 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...
Side 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.
Side 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.
Side 302 - ... which is under steam, whether under sail or not, is to be considered a ship under steam. Rules concerning Lights (a).