Practice of navigation and nautical astronomy, Volumen431872 - 571 páginas |
Términos y frases comunes
allow anchor Answer Apparent bearing bill Cape captain cargo chart charter chronometer Circle clear compass Compass Course correct magnetic Cosec Cosine Cotang course decimal Declination Departure deviation Diff difference Difference of Latitude direction Dist distance dividers draw East EXAMINATION EXAMPLES feet freight give given Greenwich head heeling high water hour index error iron June keep latitude lead length light Logarithmic longitude lower limb magnetic manner marked mast MATE mean noon Mercator meridian miles minutes nearly necessary North NOTE observed altitude owner parallel passing port position preceding rope Rule sail Secant seconds ship ship's head side Signal Sine South steered subtract sun's Table taken Tangent tide True variation vessel West White wind yard
Pasajes populares
Página 310 - ... abaft the beam on the starboard side, and of such a character as to be visible on a dark mght, with a clear atmosphere, at a distance of at least two miles. (c.) On the...
Página 310 - ... where it can best be seen, but at a height not exceeding twenty feet above the hull, a white light in a globular lantern of eight inches in diameter, and so constructed as to show a clear uniform and unbroken light visible all round the horizon, and at a distance of at least one mile.
Página 319 - 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 320 - 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. Art. 4. Steam ships when towing other ships shall carry two bright white mast-head lights vertically, in addition to their side lights, so as to distinguish them from other steam ships.
Página 320 - 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 310 - ... from right ahead to two points abaft the beam on the port side, and of such a character as to be visible at a distance of at least two miles.
Página 310 - Miles: (c.) On the Port Side, a Red 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 311 - ... (c.) When both are running free, with the wind on different sides, the vessel which has the wind on the port side shall keep out of the way of the other.
Página 309 - 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 310 - ... 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 abaft the beam on their respective sides.