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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4 페이지
... deviation or compass error , if west , are to be added to the compass course . If east , they are subtractive . When the compass course is between south and west , it is in the south - west quadrant , the signs indicating that the varia ...
... deviation or compass error , if west , are to be added to the compass course . If east , they are subtractive . When the compass course is between south and west , it is in the south - west quadrant , the signs indicating that the varia ...
15 페이지
... deviation , heeling error , current and leeway , if any . Magnetic course is the course steered by the ship's compass when free from deviation and other influences . True course is the course obtained by applying the variation , deviation ...
... deviation , heeling error , current and leeway , if any . Magnetic course is the course steered by the ship's compass when free from deviation and other influences . True course is the course obtained by applying the variation , deviation ...
16 페이지
... of latitude to latitude 79 ° 59 ′ . Meridional difference is the difference of the meridional parts for the latitudes of any two points on the earth's surface . HOW TO USE A DEVIATION TABLE Never take deviation from 16.
... of latitude to latitude 79 ° 59 ′ . Meridional difference is the difference of the meridional parts for the latitudes of any two points on the earth's surface . HOW TO USE A DEVIATION TABLE Never take deviation from 16.
17 페이지
And Examination Specialty Richard Marriotte Pugsley. TABLE OF DEVIATIONS Ship's Head Dev . Ship's Head Dev . Ship's Head Dev . Ship's Head Dev . N. N. by E. 7 ° W . O E. 21 W. S. 3 E. W⚫ 20 E. 7 W. E. by S. 23 W. S. by W. 12 ...
And Examination Specialty Richard Marriotte Pugsley. TABLE OF DEVIATIONS Ship's Head Dev . Ship's Head Dev . Ship's Head Dev . Ship's Head Dev . N. N. by E. 7 ° W . O E. 21 W. S. 3 E. W⚫ 20 E. 7 W. E. by S. 23 W. S. by W. 12 ...
18 페이지
And Examination Specialty Richard Marriotte Pugsley. HOW TO USE A DEVIATION TABLE Never take deviation from the table for a bearing ; but when a bearing is taken , carefully note the point the ship was head- ing at the time the bearing ...
And Examination Specialty Richard Marriotte Pugsley. HOW TO USE A DEVIATION TABLE Never take deviation from the table for a bearing ; but when a bearing is taken , carefully note the point the ship was head- ing at the time the bearing ...
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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 38 ship has sailed signals subtract the logarithm subtracting the latitude Table 3 take take the meridional tang third mate traverse table white light