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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21 페이지
... third ( dep . ) column will stand 24′.2 , which should be placed in the N. column of the traverse table . Suppose the difference of latitude and departure is wanted for the corrected course N. 31 ° E. and distance 47.7 miles . In the third ...
... third ( dep . ) column will stand 24′.2 , which should be placed in the N. column of the traverse table . Suppose the difference of latitude and departure is wanted for the corrected course N. 31 ° E. and distance 47.7 miles . In the third ...
22 페이지
... 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 must be multiplied by the same number which was used to divide the distance , except when 2 is used as a divisor ...
... 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 must be multiplied by the same number which was used to divide the distance , except when 2 is used as a divisor ...
28 페이지
... top of the page . The distance being 137.4 miles , 1374 miles is used ; but it is beyond the limits of the table . As half of it , 687 miles , is also too large , a third , 458 miles , is used . Course 3 ° 00 ' dist . 458 ' Dif 28.
... top of the page . The distance being 137.4 miles , 1374 miles is used ; but it is beyond the limits of the table . As half of it , 687 miles , is also too large , a third , 458 miles , is used . Course 3 ° 00 ' dist . 458 ' Dif 28.
29 페이지
... third of the distance , which is 45.8 miles , which are multiplied by 3 to obtain the difference of latitude , 137'.1 , and departure , 8'.4 , for the whole distance , 137′.4 . TO FIND COURSES AND DISTANCES FROM TABLE 2 When all the ...
... third of the distance , which is 45.8 miles , which are multiplied by 3 to obtain the difference of latitude , 137'.1 , and departure , 8'.4 , for the whole distance , 137′.4 . TO FIND COURSES AND DISTANCES FROM TABLE 2 When all the ...
113 페이지
... knots as 2.0 " flood , first quarter , drift in knots , as .......... -0.4 · • second 1.0 third ebb .............. .................. .. 0.3 otherwise like flood . FOR CONVERTING NAUTICAL MILES INTO STATUTE MILES . Nautical Statute 113.
... knots as 2.0 " flood , first quarter , drift in knots , as .......... -0.4 · • second 1.0 third ebb .............. .................. .. 0.3 otherwise like flood . FOR CONVERTING NAUTICAL MILES INTO STATUTE MILES . Nautical Statute 113.
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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