Manual of navigation, Volum 71James Maclehose, 1880 - 112 sider |
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Resultat 1-5 av 17
Side
... Lunar problem for ascertaining Greenwich time , and hence the longitude , is beyond the scope of this manual , and Sumner's method of equal altitudes , used in conjunction with Azimuth Tables , has been substituted . To a man.
... Lunar problem for ascertaining Greenwich time , and hence the longitude , is beyond the scope of this manual , and Sumner's method of equal altitudes , used in conjunction with Azimuth Tables , has been substituted . To a man.
Side
... Altitude of the Sun , Latitude by Reduction to the Meridian , Longitude by Chronometer ... Altitudes of the Sun , Publications more or less useful for Navigation , Development of the Law of Storms , Regulations for Preventing Collisions ...
... Altitude of the Sun , Latitude by Reduction to the Meridian , Longitude by Chronometer ... Altitudes of the Sun , Publications more or less useful for Navigation , Development of the Law of Storms , Regulations for Preventing Collisions ...
Side 14
... Altitude of a celestial object is its distance above the horizon , measured on the arc of a vertical circle when the object is on the meridian . 23. The Azimuth of a celestial object is the arc of the horizon between the north or south ...
... Altitude of a celestial object is its distance above the horizon , measured on the arc of a vertical circle when the object is on the meridian . 23. The Azimuth of a celestial object is the arc of the horizon between the north or south ...
Side 15
... altitude increases . 34. Observed Altitude is the observed angular height of an MANUAL OF NAVIGATION . 15.
... altitude increases . 34. Observed Altitude is the observed angular height of an MANUAL OF NAVIGATION . 15.
Side 16
Robert Assheton Napier. 34. Observed Altitude is the observed angular height of an object above the visible horizon . 35. Apparent Altitude is the apparent angular height of an object's centre above the sensible horizon . 36. True Altitude ...
Robert Assheton Napier. 34. Observed Altitude is the observed angular height of an object above the visible horizon . 35. Apparent Altitude is the apparent angular height of an object's centre above the sensible horizon . 36. True Altitude ...
Vanlige uttrykk og setninger
angle apparent atmosphere azimuth barometer binnacle blue Blue Ensign boat broken water celestial object centre chart chronometer circle clouds collision column correct magnetic bearing CYCLONES Declination decn degrees deviation Diagram Diff difference of longitude direction distant object earth east or west easterly equal equator fall feet Flinders-bar foretells fine weather glass Greenwich heeling height of eye horizon hour inches knots land latitude life-boats Long LONGITUDE BY CHRONOMETER Magnetic Course magnetic hemisphere mercury meridian meridian altitude miles minutes moon Nautical Almanac needle noon North magnetic pole north or south north point northern hemisphere oars observed altitude parallel parallel sailing placed Polar pole port position rain Right Ascension rise Royal Naval Reserve rule running S.-diar sailing ship sextant ship's head Ships under Steam shore side signals sky foretells wind standard compass starboard steam ship steered stern subtract surf tide True altitude Variation vertical line vessel
Populære avsnitt
Side 88 - ... abaft the beam on the port side ; and of such a character as to be visible on a dark night, with a clear atmosphere, at a distance of at least two miles.
Side 93 - ... other; in other words, to cases in which, by day, each vessel sees the masts of the other in a line, or nearly in a line, with her own; and by night, to cases in which each vessel is in such a position as to see both the side-lights of the other.
Side 92 - 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.
Side 95 - 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.
Side 98 - A gun or other explosive signal fired at intervals of about a minute. 2. The International Code signal of distress indicated by NC 3.
Side 90 - ... in a globular lantern of not less than eight inches in diameter, and so constructed as to show a clear uniform and unbroken light visible all round the horizon at a distance of at least one mile.
Side 95 - In obeying and construing these Rules due regard shall be had to all dangers of navigation and collision, and to any special circumstances which may render a departure from the above Rules necessary in order to avoid immediate danger.
Side 96 - If he fails so to do, and no reasonable cause for such failure is shown, the collision shall, in the absence of proof to the contrary, be deemed to have been caused by his wrongful act, neglect, or default.
Side 98 - AT NIGHT 1. A gun fired at intervals of about a minute. 2. Flames on the vessel (as from a burning tar barrel, oil barrel, etc.). 3. Rockets or shells, bursting in the air with a loud report and throwing stars of any color or description, fired one at a time at short intervals.
Side 88 - ... 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.