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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41 페이지
... prop . dif . lat . ÷ mer . dif . lat . Ex . Given . To Find . Dep . Both Dep . Tang . co . 1 lats . and Co. Tang . co . longs . Dist . Dist . Dist . Methods . = dif . long . X cos . mid . lat . dep.dif . lat . ( cos . mid . lat . X dif ...
... prop . dif . lat . ÷ mer . dif . lat . Ex . Given . To Find . Dep . Both Dep . Tang . co . 1 lats . and Co. Tang . co . longs . Dist . Dist . Dist . Methods . = dif . long . X cos . mid . lat . dep.dif . lat . ( cos . mid . lat . X dif ...
53 페이지
... Prop . dif . lat . Co. S. 48 ° 58 ′ E. Co. S. 48 ° 59 ' E. Prop . dif . lat . Dist . EXPLANATION Find the difference of latitude by adding the latitude of Cape of Good Hope to that of Sandy Hook , convert it into miles and name it south ...
... Prop . dif . lat . Co. S. 48 ° 58 ′ E. Co. S. 48 ° 59 ' E. Prop . dif . lat . Dist . EXPLANATION Find the difference of latitude by adding the latitude of Cape of Good Hope to that of Sandy Hook , convert it into miles and name it south ...
54 페이지
... Prop . dif . lat . Mer . dif . lat . Middle lat . 46 ° 02 ′ Dif . long . Middle lat . 46 ° 02 ′ Prop . dif . lat . Co. N. 70 ° 02 ′ E. Co. N. 70 ° 02 ′ E. Prop . dif . lat . Dist . 1297'.5 3.11311 1869.0 3.27161 = cos . 9.84150 5145.7 ...
... Prop . dif . lat . Mer . dif . lat . Middle lat . 46 ° 02 ′ Dif . long . Middle lat . 46 ° 02 ′ Prop . dif . lat . Co. N. 70 ° 02 ′ E. Co. N. 70 ° 02 ′ E. Prop . dif . lat . Dist . 1297'.5 3.11311 1869.0 3.27161 = cos . 9.84150 5145.7 ...
56 페이지
... Prop . dif . lat . Co. N. 77 ° 22 ′ W. Co. N. 77 ° 22 ′ W. Prop . dif . lat . Dist . 8491.4 COS . + 9.84322 3.77220 1327.03.12287 0.64933 .66013 = tang . sec . 1327.03.12287 6067.4 3.78300 EXPLANATION Find the difference of latitude by ...
... Prop . dif . lat . Co. N. 77 ° 22 ′ W. Co. N. 77 ° 22 ′ W. Prop . dif . lat . Dist . 8491.4 COS . + 9.84322 3.77220 1327.03.12287 0.64933 .66013 = tang . sec . 1327.03.12287 6067.4 3.78300 EXPLANATION Find the difference of latitude by ...
59 페이지
... Prop . dif . lat . 174'.9 } Distance 232′.0 . EXPLANATION Find the difference of latitude by subtracting the latitude of the ship from that of Barnegat light , convert it into miles and name it north because Barnegat light is north of ...
... Prop . dif . lat . 174'.9 } Distance 232′.0 . EXPLANATION Find the difference of latitude by subtracting the latitude of the ship from that of Barnegat light , convert it into miles and name it north because Barnegat light is north of ...
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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