Description and Use of a Diagram of Navigation: By which All Problems in Plane, Traverse, Parallel, Middle Latitude and Mercator's Sailing May be Instantly and Accurately Resolved. Adapted to the Capacity of All who Know the Use of Figures. Designed as an Easy Introduction, by Sensible Demonstration, to the Principles, and the Practice of Navigation. With a Diagram EngravedFellowes & Simpson, 1822 - 4 σελίδες |
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Σελίδα 6
... meridian distance 19 66 20 of } 66 " to find how many miles make a degree of longitude in any latitude 2 , to find the difference of longitude 3 , to find the parallel of latitude Middle Latitude Sailing Case 1 , to find the course and ...
... meridian distance 19 66 20 of } 66 " to find how many miles make a degree of longitude in any latitude 2 , to find the difference of longitude 3 , to find the parallel of latitude Middle Latitude Sailing Case 1 , to find the course and ...
Σελίδα 8
... distance In parallel sailing - to find the meridian distance 66 66 to find the difference of longitude to find the parallel of latitude In mid . lat . sailing - to find the departure 66 66 to find the difference of longitude to find the ...
... distance In parallel sailing - to find the meridian distance 66 66 to find the difference of longitude to find the parallel of latitude In mid . lat . sailing - to find the departure 66 66 to find the difference of longitude to find the ...
Σελίδα 12
... MERIDIAN , in miles . 28. The DEPARTURE , on the EQUATOR , * in miles . 29. The MERIDIAN DISTANCE on the EQUATOR ... MERIDIAN , in meridional parts . 32. The LATITUDE , and the middle LATITUDE are count- ed on the arc marked LATITUDE ...
... MERIDIAN , in miles . 28. The DEPARTURE , on the EQUATOR , * in miles . 29. The MERIDIAN DISTANCE on the EQUATOR ... MERIDIAN , in meridional parts . 32. The LATITUDE , and the middle LATITUDE are count- ed on the arc marked LATITUDE ...
Σελίδα 13
... meridian , 90 ° north , to the north pole , and 90 ° south to the south pole . 36. Circles of Latitude are therefore ... distance sailed ; from which are known the difference of latitude and the departure ; and from the departure is deduced ...
... meridian , 90 ° north , to the north pole , and 90 ° south to the south pole . 36. Circles of Latitude are therefore ... distance sailed ; from which are known the difference of latitude and the departure ; and from the departure is deduced ...
Σελίδα 16
... miles , required the difference of latitude and de- parture . Here the index set on the course 3 points , 243 the distance taken on the index , intersects the line to the meridian 202 for difference of latitude , and the line to the ...
... miles , required the difference of latitude and de- parture . Here the index set on the course 3 points , 243 the distance taken on the index , intersects the line to the meridian 202 for difference of latitude , and the line to the ...
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arc of latitude arc or angle chord circle circumference co-sine co-tangent contiguous angle course 3 points course 3 pts course 38 deg COURSE and DEPARTURE Course and Diff course and distance course sailed curve line departure 84 Diagram of Navigation difference of lati difference of latitude difference of longitude direct course dist DISTANCE and DEPARTURE distance sailed ence of longitude Example Example.-A ship sails find the COURSE find the DISTANCE give the course give the diff give the distance Given both LATITUDES Given-one LATITUDE index remaining index set index to meet meet the difference Mercator's sailing merid meridian distance meridional difference middle lat parallel sailing plane sailing proper diff radius be equal required the course right line drawn right-angled plane triangle Rule Rule.-Set the index secant Set the index ship in lat side as radius side marked equator tance tangent traverse table tude