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 10
By which All Problems in Plane, Traverse, Parallel, Middle Latitude and ... right angles , form the plane of the Dia- into equal squares . gram 7. The ... angled triangle . 13. The divisions on the sides , and on the index may be ...
By which All Problems in Plane, Traverse, Parallel, Middle Latitude and ... right angles , form the plane of the Dia- into equal squares . gram 7. The ... angled triangle . 13. The divisions on the sides , and on the index may be ...
Σελίδα 11
... right - angled plane triangle , if at least there be giv- en one of the sides , and an acute angle opposite , or contiguous to the side given . 19. It is therefore very conveniently applicable to the solution of all problems in ...
... right - angled plane triangle , if at least there be giv- en one of the sides , and an acute angle opposite , or contiguous to the side given . 19. It is therefore very conveniently applicable to the solution of all problems in ...
Σελίδα 15
... plane sailing has to plane trigonometry is , that on all oblique courses the distance , the difference of latitude , and the departure make the three sides of a right - angled triangle ; in which the distance always represents the ...
... plane sailing has to plane trigonometry is , that on all oblique courses the distance , the difference of latitude , and the departure make the three sides of a right - angled triangle ; in which the distance always represents the ...
Σελίδα 45
... plane triangle , the sides are proportion- al to the sines of their opposite angles . 194. In any right - angled triangle , the square of the longest side is equal to the sum of the squares of the other two sides . 195. In all plane ...
... plane triangle , the sides are proportion- al to the sines of their opposite angles . 194. In any right - angled triangle , the square of the longest side is equal to the sum of the squares of the other two sides . 195. In all plane ...
Σελίδα 46
... right - angled plane trigonometry , one of the angles is a right angle . 205. In oblique angled plane trigonometry all the an- gles are oblique . 206. Every plane triangle has six parts , viz . three sides and three angles ; three of ...
... right - angled plane trigonometry , one of the angles is a right angle . 205. In oblique angled plane trigonometry all the an- gles are oblique . 206. Every plane triangle has six parts , viz . three sides and three angles ; three of ...
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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