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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... Sun's Observed Altitude .. To Find the Latitude by Sun's Meridian Altitude Variation by an Amplitude On Finding the Time of High Water , Method I Method II By Admiralty Tide Tables At Foreign Ports .. 97 100 .. 106 108 .. IIO 117 .. 141 ...
... Sun's Observed Altitude .. To Find the Latitude by Sun's Meridian Altitude Variation by an Amplitude On Finding the Time of High Water , Method I Method II By Admiralty Tide Tables At Foreign Ports .. 97 100 .. 106 108 .. IIO 117 .. 141 ...
Страница 4
... observe azimuths and compute the variation ; to compare chronometers and keep their rates , and find the longitude by them from an observation of the sun ; to work the latitude by single altitude of the sun off the meridian ; and be ...
... observe azimuths and compute the variation ; to compare chronometers and keep their rates , and find the longitude by them from an observation of the sun ; to work the latitude by single altitude of the sun off the meridian ; and be ...
Страница 5
... observation by both sun and star , to determine the latitude by the moon , by Polar star off the meridian , and also by double altitude of the sun , and to verify the result by Sumner's method . He must be able to calculate the altitudes of ...
... observation by both sun and star , to determine the latitude by the moon , by Polar star off the meridian , and also by double altitude of the sun , and to verify the result by Sumner's method . He must be able to calculate the altitudes of ...
Страница 5
... observe azimuths and compute the variation ; to compare chronometers and keep their rates , and find the longitude by them from an observation of the sun ; to work the latitude by single altitude of the sun off the meridian ; and be ...
... observe azimuths and compute the variation ; to compare chronometers and keep their rates , and find the longitude by them from an observation of the sun ; to work the latitude by single altitude of the sun off the meridian ; and be ...
Страница 5
... observation by both sun and star , to determine the latitude by the moon , by Polar star off the meridian , and also by double altitude of the sun , and to verify the result by Sumner's method . He must be able to calculate the altitudes of ...
... observation by both sun and star , to determine the latitude by the moon , by Polar star off the meridian , and also by double altitude of the sun , and to verify the result by Sumner's method . He must be able to calculate the altitudes of ...
Чести термини и фразе
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).