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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42개의 결과 중 1 - 5개
7 페이지
... left Dif . 27 ° 09 ′ 25 ′′ N. Long . left 68 ° 53 ′ 45 ′′ W. + 2 53 45 N. Dif . + 2 17 45 W. Lat . ship 30 03 10 N ... POINT . The sign indicating by its 7.
... left Dif . 27 ° 09 ′ 25 ′′ N. Long . left 68 ° 53 ′ 45 ′′ W. + 2 53 45 N. Dif . + 2 17 45 W. Lat . ship 30 03 10 N ... POINT . The sign indicating by its 7.
9 페이지
... left . Examples : Multiply 58 " .68 X 7.35 29340 17604 41076 Ans . 431.2980 3.7 5 X 16.5 1875 2250 375 Ans . 61.875 DIVISION If the divisor contains decimals , the decimal point in the divi- dend must be moved to the right as many ...
... left . Examples : Multiply 58 " .68 X 7.35 29340 17604 41076 Ans . 431.2980 3.7 5 X 16.5 1875 2250 375 Ans . 61.875 DIVISION If the divisor contains decimals , the decimal point in the divi- dend must be moved to the right as many ...
10 페이지
... left of the decimal point . index is 3 . 4563 . 456.3 66 66 2 . 45.63 66 66 .65925 I. 4.563 66 66 0 . To take a logarithm from Table 42 , find the first three figures in the first column and the fourth figure at either the top or bottom ...
... left of the decimal point . index is 3 . 4563 . 456.3 66 66 2 . 45.63 66 66 .65925 I. 4.563 66 66 0 . To take a logarithm from Table 42 , find the first three figures in the first column and the fourth figure at either the top or bottom ...
24 페이지
... point must be moved one place to the left , so they will read 40.89 and 24.57 . In this work it is not customary and seldom necessary to have these numbers to more than one decimal . For that reason they would read 40.9 and 24.6 , the ...
... point must be moved one place to the left , so they will read 40.89 and 24.57 . In this work it is not customary and seldom necessary to have these numbers to more than one decimal . For that reason they would read 40.9 and 24.6 , the ...
26 페이지
... points in the numbers from Table 2 one place to the left , giving the difference of latitude 16'.5 and departure 32'.4 , which are placed in the south and west columns . COURSE NUMBER 2 As this course is 18 ° 40 ' , it is interpolated ...
... points in the numbers from Table 2 one place to the left , giving the difference of latitude 16'.5 and departure 32'.4 , which are placed in the south and west columns . COURSE NUMBER 2 As this course is 18 ° 40 ' , it is interpolated ...
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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