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 35
... hour , the other sails E. N. E. Ten hours after sailing the latter bears from the former due north . How far are the ... hour for 10 hours , it is ascertained that a current , during that time , has set $ . 35 Currents.
... hour , the other sails E. N. E. Ten hours after sailing the latter bears from the former due north . How far are the ... hour for 10 hours , it is ascertained that a current , during that time , has set $ . 35 Currents.
Σελίδα 36
... hour . What is the direct course , and dis- per tance sailed for the 10 hours ? TRAVERSE TABLE . Diff . Lat . Departure . Course . Distance . N .. S. E. W. N. E. 60 42.4 0.0 42.4 0 S. E. 20 0.0 14.1 14.1 0 42.4 56.5 E. less 14.1 28.3 N ...
... hour . What is the direct course , and dis- per tance sailed for the 10 hours ? TRAVERSE TABLE . Diff . Lat . Departure . Course . Distance . N .. S. E. W. N. E. 60 42.4 0.0 42.4 0 S. E. 20 0.0 14.1 14.1 0 42.4 56.5 E. less 14.1 28.3 N ...
Σελίδα 63
... hour after . ” 245. " The tides are greater than ordinary twice every month , viz : at the times of new and full moon , and these are called spring tides . " 246. " The tides are less than ordinary twice every month ; that is about the ...
... hour after . ” 245. " The tides are greater than ordinary twice every month , viz : at the times of new and full moon , and these are called spring tides . " 246. " The tides are less than ordinary twice every month ; that is about the ...
Σελίδα
... hour . 1 • • 2 to 3 Common appellations . Hardly perceptible . Just perceptible . 4 to 5 Gentle pleasant wind . 10 to 15 20 to 25 . 30 to 35 40 to 45 . 50 60 80 100 · • • · · • • · • • Pleasant brisk gale . Very brisk . High winds ...
... hour . 1 • • 2 to 3 Common appellations . Hardly perceptible . Just perceptible . 4 to 5 Gentle pleasant wind . 10 to 15 20 to 25 . 30 to 35 40 to 45 . 50 60 80 100 · • • · · • • · • • Pleasant brisk gale . Very brisk . High winds ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
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