Pugsley's Dead Reckoning, Including the Various Methods of Finding Course and Distance by Mercator and Middle Latitude Sailings: And Examination SpecialtyR.M. Pugsley, 1916 - 176페이지 |
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3 페이지
... practice , and several years ' experience as a nautical instructor , which makes possible the production of this volume for the beginner . The matter in this volume is arranged in the proper order for study and should not be deviated ...
... practice , and several years ' experience as a nautical instructor , which makes possible the production of this volume for the beginner . The matter in this volume is arranged in the proper order for study and should not be deviated ...
10 페이지
... practice of navigation . The logarithm is composed of two parts : the index and the decimal portion . The index is fixed by the number of fig- ures composing the number for which the logarithm is wanted . The decimal part is found in ...
... practice of navigation . The logarithm is composed of two parts : the index and the decimal portion . The index is fixed by the number of fig- ures composing the number for which the logarithm is wanted . The decimal part is found in ...
39 페이지
... practice ; but should not be used when the latitudes of the places under con- sideration lie on opposite sides of the equator . In such cases the course , distance , etc. , should be found by Mercator sailing . EXPLANATION Find the ...
... practice ; but should not be used when the latitudes of the places under con- sideration lie on opposite sides of the equator . In such cases the course , distance , etc. , should be found by Mercator sailing . EXPLANATION Find the ...
51 페이지
... ° 58 ′ E. Co. S. 13 ° 58 ' E. Dif . lat . Dist . 1.95665 90'.5 cos . + 9.99966 90'.43 1.95631 363.52.56050 = tang . 9.39581 sec . .01303 363.5+ 2.56050 374.6 2.57353 This method will satisfy the ordinary demands of practice ; 51.
... ° 58 ′ E. Co. S. 13 ° 58 ' E. Dif . lat . Dist . 1.95665 90'.5 cos . + 9.99966 90'.43 1.95631 363.52.56050 = tang . 9.39581 sec . .01303 363.5+ 2.56050 374.6 2.57353 This method will satisfy the ordinary demands of practice ; 51.
52 페이지
And Examination Specialty Richard Marriotte Pugsley. This method will satisfy the ordinary demands of practice ; but should not be used when the latitudes of the places under consideration lie on opposite sides of the equator . In such ...
And Examination Specialty Richard Marriotte Pugsley. This method will satisfy the ordinary demands of practice ; but should not be used when the latitudes of the places under consideration lie on opposite sides of the equator . In such ...
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½ pt add the logarithm Barnegat light Cape Horn chief mate coastwise steam vessels compass course corresponding number course and distance COURSE NUMBER DEAD RECKONING deck department difference of latitude difference of longitude Dist distance column Enter Table EXAMPLE NUMBER EXPLANATION Find Find the course Find the difference gives the logarithm latitude 35 latitude 55 latitude and departure latitude and longitude latitude and takes latitude by subtracting latitude column logarithm cosine logarithm secant logarithm tangent Long longitude 74 mate of ocean Mercator sailing meridional difference Middle lat middle latitude sailing mile and find miles and name name it south navigation nearest mile ocean or coastwise ocean steam vessels original license pilot point in latitude point left Prop proper difference PUGSLEY'S sail vessels Sandy Hook ship has sailed signals subtract the logarithm subtracting the latitude Table 3 take take the meridional tang third mate traverse table white light
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141 페이지 - On the starboard side a green light so constructed as to show an unbroken light over an arc of the horizon of ten points of the compass, so fixed as to throw the light from right ahead to two points abaft the beam on...
153 페이지 - A vessel which is closehauled on the port tack shall keep out of the way of a vessel which is closehauled on the starboard tack.
154 페이지 - Where by any of these rules one of two vessels is to keep out of the way, the other shall keep her course and speed.
155 페이지 - Every vessel coming up with another vessel from any direction more than two points abaft her beam, that is, in such a position, with reference to the vessel which she is overtaking that at night she would be unable to see either of that vessel's side-lights, shall be deemed to be an overtaking vessel...
150 페이지 - Every vessel may, if necessary in order to attract attention in addition to the lights which she is by these rules required to carry, show a flare-up light or use any detonating signal that cannot be mistaken for a distress signal.
156 페이지 - My engines are going at full speed astern." PRECAUTION. ART. 29. Nothing in these rules shall exonerate any vessel, 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 lookout, 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.
151 페이지 - sailing vessels" and "vessels towed" on the fog horn. The words "prolonged blast" used in this article shall mean a blast of from four to six seconds duration.
156 페이지 - When a vessel is in distress and requires assistance from other vessels or from the shore, the following shall be the signals to be used or displayed by her, either together or separately, viz. : — ' In the daytime — 1. A gun or other explosive signal fired at intervals of about a minute. 2. The International Code signal of distress indicated by NC 3.
144 페이지 - ... mile, or a combined lantern showing a green light and a red light from right ahead to 2 points abaft the beam on their respective sides. Such lantern shall be carried not less than 3 feet below the white light.
155 페이지 - Every vessel which is directed by these rules to keep out of the way of another vessel shall, if the circumstances of the case admit, avoid crossing ahead of the other.