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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Página 40
... column at the top of which is No. , and the decimal part of the logarithm will be found opposite to it in the next column to the right hand . Prefix the proper characteristic to the mantissa , see Rules VIII and IX , pages 37 and 38 ...
... column at the top of which is No. , and the decimal part of the logarithm will be found opposite to it in the next column to the right hand . Prefix the proper characteristic to the mantissa , see Rules VIII and IX , pages 37 and 38 ...
Página 41
... column to the left marked No. , and the fourth in the horizontal column at the top of the page . Under this last , and opposite the three figures , will be found the mantissa of the logarithm sought . Prefix the index according to Rules ...
... column to the left marked No. , and the fourth in the horizontal column at the top of the page . Under this last , and opposite the three figures , will be found the mantissa of the logarithm sought . Prefix the index according to Rules ...
Página 42
... columns we find 3 ( the fourth figure ) , then in a line with the former and in the column with the latter at the top we have 453777 , which is the mantissa of 2843. In a line with the quantity in the right hand column marked Diff ...
... columns we find 3 ( the fourth figure ) , then in a line with the former and in the column with the latter at the top we have 453777 , which is the mantissa of 2843. In a line with the quantity in the right hand column marked Diff ...
Página 44
... column No. the three figures in the same horizontal row . 2 ° . From the head of the column take the fourth figure . 3 ° . From the characteristic or index find by the rules already given the position of the decimal point . ( Rules XVI ...
... column No. the three figures in the same horizontal row . 2 ° . From the head of the column take the fourth figure . 3 ° . From the characteristic or index find by the rules already given the position of the decimal point . ( Rules XVI ...
Página 51
... column of the Table ( No. ) for 830 ( the first three digits ) , and also at the top of the page in one of the horizontal columns for the fourth figure 7 , then in a line with the first and under the latter we have 919444. In a line ...
... column of the Table ( No. ) for 830 ( the first three digits ) , and also at the top of the page in one of the horizontal columns for the fourth figure 7 , then in a line with the first and under the latter we have 919444. In a line ...
Términos y frases comunes
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
Pasajes populares
Página 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.
Página 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.
Página 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.
Página 302 - On the starboard side a green light so constructed as to show an unbroken light over an arc of the horizon of...
Página 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...
Página 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.
Página 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...
Página 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.
Página 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.
Página 302 - ... which is under steam, whether under sail or not, is to be considered a ship under steam. Rules concerning Lights (a).