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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Страница 68
... magnetic needle by which the ship is steered . The former is distinguished as the True Course , the latter as the Compass Course . The course steered is also distinguished from the course made good , which is the angle between the ...
... magnetic needle by which the ship is steered . The former is distinguished as the True Course , the latter as the Compass Course . The course steered is also distinguished from the course made good , which is the angle between the ...
Страница 69
... magnetic pole and the pole of the earth not being coincident . THE DISTANCE between two places is the arc of the rhumb line joining them , expressed in nautical miles , of 60 to the degree of latitude . Thus ( fig . , page 64 ) , the ...
... magnetic pole and the pole of the earth not being coincident . THE DISTANCE between two places is the arc of the rhumb line joining them , expressed in nautical miles , of 60 to the degree of latitude . Thus ( fig . , page 64 ) , the ...
Страница 78
... magnetic north , which in few parts of the world agrees with the true north , the difference between them is called the Variation of the Compass . It is said to be easterly when the north end of the needle is drawn to the eastward , and ...
... magnetic north , which in few parts of the world agrees with the true north , the difference between them is called the Variation of the Compass . It is said to be easterly when the north end of the needle is drawn to the eastward , and ...
Страница 79
... magnetic needle does not point exactly North , but 23 W. of North . In the West Indies the variation is nil ; at Cape Farewell , 53 ° W .; at Cape Horn , 23 ° E .; at Hobart Town , 10 ' E .; at Canton , 1 ' E .; and Cape of Good Hope ...
... magnetic needle does not point exactly North , but 23 W. of North . In the West Indies the variation is nil ; at Cape Farewell , 53 ° W .; at Cape Horn , 23 ° E .; at Hobart Town , 10 ' E .; at Canton , 1 ' E .; and Cape of Good Hope ...
Страница 89
... magnetic needle , in deflecting it to the right or left of the magnetic meridian . The large quantity of iron now used in the construction and equipment of steamers , iron sailing vessels , and sometimes of wooden sailing vessels ...
... magnetic needle , in deflecting it to the right or left of the magnetic meridian . The large quantity of iron now used in the construction and equipment of steamers , iron sailing vessels , and sometimes of wooden sailing vessels ...
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).