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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16 페이지
... half the sum of the two latitudes between which a course and distance may be wanted . It is used for converting difference of longitude into departure or departure into difference of longitude , using Table 2 . Meridional parts is the ...
... half the sum of the two latitudes between which a course and distance may be wanted . It is used for converting difference of longitude into departure or departure into difference of longitude , using Table 2 . Meridional parts is the ...
18 페이지
... half point , the mean of the nearest point on each side will be the deviation for the half point . To find the deviation for S. 1⁄2 W. , take deviations from the table for S. and S. by W. and half their sum , both being east , will be ...
... half point , the mean of the nearest point on each side will be the deviation for the half point . To find the deviation for S. 1⁄2 W. , take deviations from the table for S. and S. by W. and half their sum , both being east , will be ...
24 페이지
... half degree when the distance exceeds 600 miles , enter Table 2 with half of it , or if that is too large , use a third or a quarter ; but in any case the largest that falls within the limits of the table is to be used . The mean found ...
... half degree when the distance exceeds 600 miles , enter Table 2 with half of it , or if that is too large , use a third or a quarter ; but in any case the largest that falls within the limits of the table is to be used . The mean found ...
27 페이지
... half of it , 318 miles , is used . Course 42 ° dist . 318 ′ Dif . lat . 66 66 43 318 66 66 23'.63 Dep . +23.26 66 21.28 + 21.69 66 66 46'.9 46.89 66 = 43'.0 = = 42.97 The sum of the numbers take from Table 2 are not divided by 2 because ...
... half of it , 318 miles , is used . Course 42 ° dist . 318 ′ Dif . lat . 66 66 43 318 66 66 23'.63 Dep . +23.26 66 21.28 + 21.69 66 66 46'.9 46.89 66 = 43'.0 = = 42.97 The sum of the numbers take from Table 2 are not divided by 2 because ...
28 페이지
... half of it , 307 miles , is used . Course 56 ° dist . 307 Dif . lat . 66 66 66 66 57 307 66 66 33'.9 17.17 Dep . + 16.72 = 33.89 66 25.45 +25.75 66 51'.2 = = 51.20 The sum of the numbers taken from Table 2 are not divided by 2 because half ...
... half of it , 307 miles , is used . Course 56 ° dist . 307 Dif . lat . 66 66 66 66 57 307 66 66 33'.9 17.17 Dep . + 16.72 = 33.89 66 25.45 +25.75 66 51'.2 = = 51.20 The sum of the numbers taken from Table 2 are not divided by 2 because half ...
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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