Hand-book to the Local marine board examination [by J. Taylor].1853 |
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Página 16
... remarks are for the purpose of enforcing the necessity of having a due regard to the characteristic or index of a logarithm , the neglect of which is productive of great error . Take any numbers as 27 , 564 , 3047 ; the first consists ...
... remarks are for the purpose of enforcing the necessity of having a due regard to the characteristic or index of a logarithm , the neglect of which is productive of great error . Take any numbers as 27 , 564 , 3047 ; the first consists ...
Página 20
... Remarks . P.M. I take my departure from a point of land in Lat 34 ° 51'S . Long 20o 2′E . bearing by compass N. N. W. W. distant 17 miles . East . N.N.E. 12 A.M E.N.E.E. North . N.N.W. N.E. + cok A current sets W. by S. by compass at ...
... Remarks . P.M. I take my departure from a point of land in Lat 34 ° 51'S . Long 20o 2′E . bearing by compass N. N. W. W. distant 17 miles . East . N.N.E. 12 A.M E.N.E.E. North . N.N.W. N.E. + cok A current sets W. by S. by compass at ...
Página 21
... Remarks . I take my departure from a point of land in Lat . 25 ° 39'S . Long 45 ° 2 ' E. bear- ing by compass N.W. by N.4N . distant 21 miles . S.S.E. S.W. ι 10 11 12 A.M. 1 S.W. by W. S.E. } 2 3 0 A current set the ship S W.byS . by ...
... Remarks . I take my departure from a point of land in Lat . 25 ° 39'S . Long 45 ° 2 ' E. bear- ing by compass N.W. by N.4N . distant 21 miles . S.S.E. S.W. ι 10 11 12 A.M. 1 S.W. by W. S.E. } 2 3 0 A current set the ship S W.byS . by ...
Página 22
... Remarks . I take my departure from a point of land in Lat . 4 ' 24'N . Long . 7 ° 46'W . bear- ing N.E. ( by compass ) dist . 18 miles 1 H. K. TO 044206 6 0 0 696976O777 21 Courses . Winds . P. M. S. W. N. by W. N. W. b . N. W. by S. 10 ...
... Remarks . I take my departure from a point of land in Lat . 4 ' 24'N . Long . 7 ° 46'W . bear- ing N.E. ( by compass ) dist . 18 miles 1 H. K. TO 044206 6 0 0 696976O777 21 Courses . Winds . P. M. S. W. N. by W. N. W. b . N. W. by S. 10 ...
Página 23
... Remarks I take my departure from a point in Lat . 25 ° 39 ' S. Long . 45 ° 7 ' E. bearing by compass N.W. by N. distant 9 miles . Lee Winds . way N. 0 N.W.b.W A current setting to S.W. by compass at the rate of 16 miles in the 24 hours ...
... Remarks I take my departure from a point in Lat . 25 ° 39 ' S. Long . 45 ° 7 ' E. bearing by compass N.W. by N. distant 9 miles . Lee Winds . way N. 0 N.W.b.W A current setting to S.W. by compass at the rate of 16 miles in the 24 hours ...
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Hand-Book to the Local Marine Board Examination [By J. Taylor] Janet Taylor,Trade Board of Local Marine Board Sin vista previa disponible - 2015 |
Términos y frases comunes
3rd cor A.M. at ship apparent course artificial horizon assumed latitude axis line azimuth barometer bearing bill of lading boilers bottomry Cape cargo centre Certificate charter-party Chief Mate chronometer Circle Sailing compass course and distance cross sea cyclone damage dead reckoning Diff Divide double altitude dunnage elapsed engines equator examination eye 18 feet eye 21 feet feet required foggy weather freight is due gong is sounded Greenwich hauling horizon hurricane index error Light Vessel logarithms lunar M. T. at Gr margin Marine Board minutes northern hemisphere observed altitude observed meridian altitude P.M. mean P.M. tides parallel sailing place 2h port semi-circle recurving required the latitude required the true required the variation Second Mate set and drift sextant ship by dead ship's slow on M. T. Steam storm stowed sun's lower limb true dist true latitude true longitude tude valves voyage West
Pasajes populares
Página 60 - London, (the act of God, the queen's enemies, fire, and all and every other dangers and accidents of the seas, rivers, and navigation, of whatever nature and kind soever, excepted,) unto order or to assigns, he or they paying freight for the said goods at 51.
Página 25 - Astronomers, with a view of obtaining a convenient and uniform measure of time, have recourse to a mean solar day, the length of which is equal to the mean or average of all the apparent solar days in a year. An imaginary Sun, called the mean Sun...
Página 40 - ... a bright white light so constructed as to show an unbroken light over an arc of the horizon of 20 points of the compass, so fixed as to throw the light 10 points on each side of the vessel...
Página 12 - If the applicant passes, he will receive a document from the examiner, which will entitle him to receive his certificate of competency from the shipping master at the port to which he has directed it to be forwarded.
Página 44 - Bundles of sheet iron, rods, pigs of copper or iron, or any rough hard substance, should not be allowed to come in contact with bales or bags, or any soft packages liable to be chafed. When mats can be procured, they should be used at the sides for silk, tea, &c 11 — Tar, Turpentine, Rosin, &c.
Página 40 - On the starboard side, a green light so constructed as to show an uniform and unbroken light over an arc of the horizon of 10 points of the compass ; so fixed as to throw the light from right ahead to 2 points abaft the beam...
Página 13 - Mates are made compulsory, the qualifications have been kept as low as possible; but it must be distinctly understood that it is the intention of the Board of Trade to raise the standard from time to time, whenever, as will no doubt be the case, the general attainments of officers in the Merchant Service shall render it possible to do so without inconvenience ; and Officers are strongly urged to employ their leisure hours, when in port, in the acquirement of the knowledge necessary to enable them...
Página 41 - On the port side a red light so constructed as to show an unbroken light over an arc of the horizon of 10 points of the compass, so fixed as to throw the light from right ahead to 2 points abaft the beam on the port side, and of such a character as to be visible at a distance of at least 2 miles.
Página 11 - He must be able to observe, and calculate the amplitude of the sun, and deduce the variation of the compass therefrom. He must know how to lay off the place of the ship on the chart, both by bearings of known objects, and by latitude and longitude. He must be able to...
Página 36 - ... to set the axis of the telescope parallel to the plane of the instrument...