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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12 페이지
... adding 10 to the index of the logarithm of the dividend if necessary to make subtrac- tion possible , and the re nainder will be the logarithm of the quotient . Example : Divide 20.01 by 8.7 . 20.01 8.7 Ans . 2.300 index 1.30125 66 ...
... adding 10 to the index of the logarithm of the dividend if necessary to make subtrac- tion possible , and the re nainder will be the logarithm of the quotient . Example : Divide 20.01 by 8.7 . 20.01 8.7 Ans . 2.300 index 1.30125 66 ...
32 페이지
... adding together the two latitudes under consideration and dividing their sum by 2 , which will be the middle latitude , the nearest degree of which is used for converting the difference of longitude into departure by entering Table 2 ...
... adding together the two latitudes under consideration and dividing their sum by 2 , which will be the middle latitude , the nearest degree of which is used for converting the difference of longitude into departure by entering Table 2 ...
39 페이지
... 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 difference of latitude by adding the latitude 39.
... 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 difference of latitude by adding the latitude 39.
40 페이지
And Examination Specialty Richard Marriotte Pugsley. EXPLANATION Find the difference of latitude by adding the latitude of the point to that of the ship , convert it into miles and name it south because the point is south of the latitude ...
And Examination Specialty Richard Marriotte Pugsley. EXPLANATION Find the difference of latitude by adding the latitude of the point to that of the ship , convert it into miles and name it south because the point is south of the latitude ...
52 페이지
... adding the latitude of the point to that of the ship , convert it into miles and name it south because the point is south of the latitude of the ship . When one latitude is north and the other is south , the middle latitude can best be ...
... adding the latitude of the point to that of the ship , convert it into miles and name it south because the point is south of the latitude of the ship . When one latitude is north and the other is south , the middle latitude can best be ...
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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