The New American Practical Navigator; Being an Epitome of Navigation; Containing All the Tables Necessary to be Used with the Nauticl AlmanacE. & G.W. Blunt, 1846 - 451 sider |
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Side xii
... wind . To determine the height of a mountain by barometers 79 86 87 89 97 97 Mensuration 99 Gauging 103 Surveying ... winds ... Directions for sailing from America to India .. Tides ..... To find the time of high water by a Nautical ...
... wind . To determine the height of a mountain by barometers 79 86 87 89 97 97 Mensuration 99 Gauging 103 Surveying ... winds ... Directions for sailing from America to India .. Tides ..... To find the time of high water by a Nautical ...
Side 61
... winds , she is obliged to sail on the following courses , viz . south 10 miles , W. S. W. 25 miles , S. W. 30 miles , and W. 20 miles . Required the bearing and distance of the two places , the course and distance sailed by the ship ...
... winds , she is obliged to sail on the following courses , viz . south 10 miles , W. S. W. 25 miles , S. W. 30 miles , and W. 20 miles . Required the bearing and distance of the two places , the course and distance sailed by the ship ...
Side 62
... winds , she sails the following courses , viz . S. W. by W. 27 miles , W. S. W. W. 30 miles , W. by S. 25 miles , W. by N. 18 miles , S. S. E. 32 miles , S. S. E. E. 27 miles ,. S. by E. 25 miles , S. 31 miles , and S. S. E. 39 miles ...
... winds , she sails the following courses , viz . S. W. by W. 27 miles , W. S. W. W. 30 miles , W. by S. 25 miles , W. by N. 18 miles , S. S. E. 32 miles , S. S. E. E. 27 miles ,. S. by E. 25 miles , S. 31 miles , and S. S. E. 39 miles ...
Side 97
... wind . Suppose that a ship moves in the direction CB from C to B , while the wind moves in its true direction from A to B ; the effect on the ship will be the same as if she be at rest , and the wind blow in the direction AC with a ...
... wind . Suppose that a ship moves in the direction CB from C to B , while the wind moves in its true direction from A to B ; the effect on the ship will be the same as if she be at rest , and the wind blow in the direction AC with a ...
Side 112
... wind ) prevents this method from being sufficiently accurate to be used in exploring a dangerous shoal or bank at the entrance of a narrow channel of a harbor , or any other place where the exact form of the shoal is to be found ; and ...
... wind ) prevents this method from being sufficiently accurate to be used in exploring a dangerous shoal or bank at the entrance of a narrow channel of a harbor , or any other place where the exact form of the shoal is to be found ; and ...
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The New American Practical Navigator; Being an Epitome of Navigation ... Nathaniel Bowditch Ingen forhåndsvisning tilgjengelig - 2015 |
Vanlige uttrykk og setninger
anchor apparent altitude azimuth bearing cable calculation central index centre chord chronometer circle column compass Corr correct central altitude corresponding Cosec cosine degrees diameter diff difference of latitude difference of longitude Dist divided draw elapsed equal equator error EXAMPLE feet given Greenwich Half-sum horizon glass horizontal parallax hour angle hypotenuse instrument latitude and departure line of numbers line of sines logarithm lower limb mast mean meridian altitude method middle latitude miles minutes moon moon's multiplied Nautical Almanac nearly noon object observed altitude obtained parallel Parallel Sailing passing the meridian perpendicular Plane Sailing points polar distance pole quadrant radius 90 refraction right ascension rule screw sea account secant semidiameter sextant ship ship's side star subtracted sun's declination Suppose taken tangent telescope triangle true altitude true distance true longitude variation wind wires zenith distance
Populære avsnitt
Side 9 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Side 299 - Calm Light air Light breeze Gentle breeze Moderate breeze Fresh breeze Strong breeze Moderate gale Fresh gale Strong gale Whole gale Storm Estimatin Observations at sea Sea like mirror.
Side 156 - ... or taking their difference when of contrary names ; the altitude to be reckoned from the south point of the horizon, when the latitude is north, and the contrary when south ; but when the sum exceeds 90°, it is to be taken from 180°...
Side 10 - In like manner, when it is said, that " triangles on the same base, and between the same parallels, are equal...
Side 102 - If the vessel be double-decked, take the length thereof from the fore part of the main stem, to the after part of the stern post, above the upper deck ; the breadth thereof at the broadest part above the main wales...
Side 29 - To find the logarithm of a vulgar fraction. RULE. Subtract the logarithm of the denominator from the logarithm of the numerator...
Side 6 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc.
Side 119 - Fiini will be the time of high water, at the given place, reckoning from the noon of the given day. If this sum be greater than 12h.
Side 290 - Davit ; a long beam of timber, used as a crane, whereby to hoist the flukes of the anchor to the top of the bow, without injuring the planks of the ship's sides as it ascends.
Side 11 - KCML, the sum of the two parallelograms or square BCMH ; therefore the sum of the squares on AB and AC is equal to the square on BC.