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 5
... given by the theorem , being readily formed by the Diagram , if it be well examined in connection with the reading of the solution , the learner will soon posses , the idea of the proportions of the several terms . As all right - angled ...
... given by the theorem , being readily formed by the Diagram , if it be well examined in connection with the reading of the solution , the learner will soon posses , the idea of the proportions of the several terms . As all right - angled ...
Σελίδα 7
... given 47 66 66 Case 2 & 3 , to find the hypothenuse and one leg , the other leg and its opposite angle given Case 4 & 5 , to find the angles and one leg , the hypothenuse and the other leg given Problems which may be performed by the ...
... given 47 66 66 Case 2 & 3 , to find the hypothenuse and one leg , the other leg and its opposite angle given Case 4 & 5 , to find the angles and one leg , the hypothenuse and the other leg given Problems which may be performed by the ...
Σελίδα 9
... given radius . 4. It is in the form of a Quadrant , or quarter circle , and exhibits a series of right - angled plane triangles , whose sides and angles are measured by marginal fig ures . 5. It has two sides perpendicular to each other ...
... given radius . 4. It is in the form of a Quadrant , or quarter circle , and exhibits a series of right - angled plane triangles , whose sides and angles are measured by marginal fig ures . 5. It has two sides perpendicular to each other ...
Σελίδα 10
... given . 8. The Arc is divided into eight parts , correspond- ing to the eight points of the quarter compass ; which are numbered from left to right ; and each point is subdivided into half and quarter points . 9. The Arc is also divided ...
... given . 8. The Arc is divided into eight parts , correspond- ing to the eight points of the quarter compass ; which are numbered from left to right ; and each point is subdivided into half and quarter points . 9. The Arc is also divided ...
Σελίδα 11
... given . 19. It is therefore very conveniently applicable to the solution of all problems in navigation relating to plane , traverse , parallel , middle latitude , and Merca- tor's sailing . 20. For this purpose the arc represents a ...
... given . 19. It is therefore very conveniently applicable to the solution of all problems in navigation relating to plane , traverse , parallel , middle latitude , and Merca- tor's sailing . 20. For this purpose the arc represents a ...
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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