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 14
... Raper's Navigation ; Tables 10 , 11 , and 26 in Rosser's Navigation , & c . ) ; every correction must appear on the papers of the Candidates . The First - class and Extra Master are referred to page 519 of the Nautical Almanac , 1867 ...
... Raper's Navigation ; Tables 10 , 11 , and 26 in Rosser's Navigation , & c . ) ; every correction must appear on the papers of the Candidates . The First - class and Extra Master are referred to page 519 of the Nautical Almanac , 1867 ...
Página 40
... Raper's Navigation , page 661 , and table 64 . If the number be given , its logarithm may be found as follows : — To find the logarithm of a number consisting of not more than two digits , i.e. , which does not exceed 100 . RULE XII ...
... Raper's Navigation , page 661 , and table 64 . If the number be given , its logarithm may be found as follows : — To find the logarithm of a number consisting of not more than two digits , i.e. , which does not exceed 100 . RULE XII ...
Página 49
... Raper's table ; the true log . being * 40312052 . 10. Multiply 436 by 197 . 436 log . 2.639486 197 log . 1294466 8589 2 log . 3'933952 Or thus - using negative indices : Ex . 11 0567 log . 2753583 c0339 log . 3530200 coo192 log . 283783 ...
... Raper's table ; the true log . being * 40312052 . 10. Multiply 436 by 197 . 436 log . 2.639486 197 log . 1294466 8589 2 log . 3'933952 Or thus - using negative indices : Ex . 11 0567 log . 2753583 c0339 log . 3530200 coo192 log . 283783 ...
Página 58
... Raper gives the log . sines to every second up to 1 ' 30 ' , and to every ten seconds up to 4 ° 30 ' . When an angle of degrees , minutes , and seconds , and within less than 3 ° of 90 ' occurs in calculation , we cannot , for the ...
... Raper gives the log . sines to every second up to 1 ' 30 ' , and to every ten seconds up to 4 ° 30 ' . When an angle of degrees , minutes , and seconds , and within less than 3 ° of 90 ' occurs in calculation , we cannot , for the ...
Página 67
... Raper's Naviga- tion , page 98. ) LONGITUDE is the arc of the equator intercepted between the meridian of the place and the first meridian , and is , therefore , the measure of the angle between the two meridians ; thus ( fig . , page ...
... Raper's Naviga- tion , page 98. ) LONGITUDE is the arc of the equator intercepted between the meridian of the place and the first meridian , and is , therefore , the measure of the angle between the two meridians ; thus ( fig . , page ...
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).