A Manual of the Examination of Masters and Mates as Instituted by the Department of Marine and Fisheries of CanadaDawson, 1875 - 272 sivua |
Kirjan sisältä
Tulokset 1 - 5 kokonaismäärästä 18
Sivu 49
... limb has been observed , the semi - diameter is additive ; but if the upper limb has been taken , it is then subtractive . The result is the True Altitude of the Sun's centre . 51. To find the zenith distance . - Take the True Altitude ...
... limb has been observed , the semi - diameter is additive ; but if the upper limb has been taken , it is then subtractive . The result is the True Altitude of the Sun's centre . 51. To find the zenith distance . - Take the True Altitude ...
Sivu 50
... limb was 53 ° 8 ′ 40 ′′ bearing North , index error - 1 ' 20 " , height of eye 14 feet . Required the latitude . Ship date , Oct. 30d 0h 0m 0s Decl . 13 ° 40 ′ 17 ′′ Hourly diff . 49 " -45 Long in time 13 36 7 31 12 Greenwich App . Time ...
... limb was 53 ° 8 ′ 40 ′′ bearing North , index error - 1 ' 20 " , height of eye 14 feet . Required the latitude . Ship date , Oct. 30d 0h 0m 0s Decl . 13 ° 40 ′ 17 ′′ Hourly diff . 49 " -45 Long in time 13 36 7 31 12 Greenwich App . Time ...
Sivu 51
... Limb was 52 ° 10 ′ 0 ′′ bearing North , index error + 1 ' 16 " , height of eye 11 feet . Required the latitude . Ex . 4-1876 , July 11th , in longitude 111o 25 ' E. , the observed meridian altitude of the Sun's Lower Limb was 18 ° 46 ...
... Limb was 52 ° 10 ′ 0 ′′ bearing North , index error + 1 ' 16 " , height of eye 11 feet . Required the latitude . Ex . 4-1876 , July 11th , in longitude 111o 25 ' E. , the observed meridian altitude of the Sun's Lower Limb was 18 ° 46 ...
Sivu 52
... Limb was 89 ° 53 ′ 50 ′′ bearing North , index error + 1 ′ 27 ′′ , height of eye 14 feet . Required the latitude . Ex . 9-1876 , July 4th , in longitude 133 ° 48 ′ W. , the observed meridian altitude of the Sun's Lower Limb was 51 ° 16 ...
... Limb was 89 ° 53 ′ 50 ′′ bearing North , index error + 1 ′ 27 ′′ , height of eye 14 feet . Required the latitude . Ex . 9-1876 , July 4th , in longitude 133 ° 48 ′ W. , the observed meridian altitude of the Sun's Lower Limb was 51 ° 16 ...
Sivu 71
... Limb was 48 ° 34 ' 10 " . Height of eye 18 feet . Time by a Chronometer 4h 19m 46s which was fast 8m 13s for mean noon at Greenwich on April 10th , and on May 5th was fast for mean noon at Greenwich 6m 18s . Required the longitude by ...
... Limb was 48 ° 34 ' 10 " . Height of eye 18 feet . Time by a Chronometer 4h 19m 46s which was fast 8m 13s for mean noon at Greenwich on April 10th , and on May 5th was fast for mean noon at Greenwich 6m 18s . Required the longitude by ...
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A Manual of the Examination of Masters and Mates as Instituted by the ... William C. Seaton Rajoitettu esikatselu - 2024 |
A Manual of the Examination of Masters and Mates as Instituted by the ... William C. Seaton Rajoitettu esikatselu - 2024 |
A Manual of the Examination of Masters and Mates: An Instituted by the ... William C. Seaton Esikatselu ei käytettävissä - 2017 |
Yleiset termit ja lausekkeet
A. M. at ship anchor Apparent bearing by compass bills of lading boussole Bowditch bowsprit brace Brest cargo common logarithms correct magnetic courses deck Déf diff difference of longitude Dist downhaul dunnage East eye 18 feet fore given haul hawsepipe hawser height of eye hoist Hour Angle index error la boussole lash Latitude Norie le méridien logarithms Long longitude by account Longitude by Chronometer magnetic bearing mast mean noon miles natural number Nautical Almanac navire noon at Greenwich North observed altitude observed Meridian Altitude P. M. Mean parallel rulers parallel sailing Pennant Polar distance port reef required the Deviation Required the Latitude Required the Longitude rigging sail Secant sextant Ship's head Signal Sine spar Standard Compass steer subtract Sun's Lower Limb supposing the Variation Table tackle taut topmast True Altitude True Amplitude True Azimuth True declin vessel West wind yard
Suositut otteet
Sivu 176 - In obeying and construing these rules due regard must be had to all dangers of navigation ; and due regard must also be had to any special circumstances which may exist in any particular case rendering a departure from the above rules necessary in order to avoid immediate danger.
Sivu 181 - 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...
Sivu 175 - When two steam vessels are meeting end on, or nearly end on, so as to involve risk of collision, each shall alter her course to starboard, so that each may pass on the port side of the other.
Sivu 175 - ... 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.
Sivu 174 - The distant signal, consisting of a square flag, having either above or below it a ball or anything resembling a ball.
Sivu 180 - Sidelights" means a green light on the starboard side and a red light on the port side...
Sivu 181 - ... 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.
Sivu 175 - ... (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.
Sivu 187 - 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.
Sivu 176 - Every steamship, when approaching another ship so as to involve risk of collision, shall slacken her speed, or if necessary stop and reverse ; and every steamship shall, when in a fog, go at a moderate speed.