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 3
... rules of arithmetic , may , with little study , be competent to keep the reckoning of a vessel . The Diagram of Naviga- tion exhibits , at one glance , the whole system of calcu- lation in making up the reckoning . From very little use ...
... rules of arithmetic , may , with little study , be competent to keep the reckoning of a vessel . The Diagram of Naviga- tion exhibits , at one glance , the whole system of calcu- lation in making up the reckoning . From very little use ...
Σελίδα 5
... rule , Rad .: mer . dist . :: sec . of lat .: diff . of lon . In publishing the remarks which accompany the Di- agram , after the description and use , my original inten- tion was to have added only the rules , examples and ...
... rule , Rad .: mer . dist . :: sec . of lat .: diff . of lon . In publishing the remarks which accompany the Di- agram , after the description and use , my original inten- tion was to have added only the rules , examples and ...
Σελίδα 8
... rule in the table , the theorem being accidently omitted ) In Mercator's sailing - to find the course 54 60 55 56 66 57 66 61 58 66 to find the difference of longitude 59 66 to find the meridional difference of latitude 60 Table of rules ...
... rule in the table , the theorem being accidently omitted ) In Mercator's sailing - to find the course 54 60 55 56 66 57 66 61 58 66 to find the difference of longitude 59 66 to find the meridional difference of latitude 60 Table of rules ...
Σελίδα 16
... Rule . Set the index on the course ; -then from the distance on the index , trace the nearest line to the meridian for the difference of latitude , —and the near- est line to the equator for the departure . Example - A ship sails north ...
... Rule . Set the index on the course ; -then from the distance on the index , trace the nearest line to the meridian for the difference of latitude , —and the near- est line to the equator for the departure . Example - A ship sails north ...
Σελίδα 17
... Rule . - Set the index on the course ; then the de- parture taken on the equator will give the distance on the index , and the line to the meridian for the diff . of latitude . Example . A ship sails north 2 points east till her ...
... Rule . - Set the index on the course ; then the de- parture taken on the equator will give the distance on the index , and the line to the meridian for the diff . of latitude . Example . A ship sails north 2 points east till her ...
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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