A Guide to the Local Marine Board Examinations of Masters and MatesSimpkin, Marshall&Company, 1872 - 178 sivua |
Kirjan sisältä
Tulokset 1 - 5 kokonaismäärästä 81
Sivu 19
... Diff . " by the remaining figures , score off from the product as many figures from the right as the multiplier consists of , and add what re- main to the log . of the first four figures ; the sum will be the log . required . TO FIND ...
... Diff . " by the remaining figures , score off from the product as many figures from the right as the multiplier consists of , and add what re- main to the log . of the first four figures ; the sum will be the log . required . TO FIND ...
Sivu 20
... Diff . " in the right side column abreast of the log . THE NUMBER OF FIGURES OR WHOLE NUMBER . The whole number must always contain one more figure than the index ; that is , if the index is 2 , the whole number must contain three ...
... Diff . " in the right side column abreast of the log . THE NUMBER OF FIGURES OR WHOLE NUMBER . The whole number must always contain one more figure than the index ; that is , if the index is 2 , the whole number must contain three ...
Sivu 21
Leonard Allen. 3. Multiply 6.4385 by 28.4912 by common logs . .808751 Diff . 34 68888 5 Mult . 6.4385 ... 0.808785 by 28.4912 ... 1.454710 .808785 34,0 Answer 183.4 .. 2.263495 .454692 Diff . 153 18 12 .454710 18,36 4. Multiply 456.7 by ...
Leonard Allen. 3. Multiply 6.4385 by 28.4912 by common logs . .808751 Diff . 34 68888 5 Mult . 6.4385 ... 0.808785 by 28.4912 ... 1.454710 .808785 34,0 Answer 183.4 .. 2.263495 .454692 Diff . 153 18 12 .454710 18,36 4. Multiply 456.7 by ...
Sivu 23
... diff . lat . and dep . for each course and distance from Table 1 ; placing the diff . lat . in the North column or South column , and the dep . in the East or West column , according to the name of the course . Suppose the course N. 2 E ...
... diff . lat . and dep . for each course and distance from Table 1 ; placing the diff . lat . in the North column or South column , and the dep . in the East or West column , according to the name of the course . Suppose the course N. 2 E ...
Sivu 24
... diff . long . in a distance column . Name the diff . long . the same as the dep .; East if dep . is East ; West if dep . is West . When the lat . is nothing , or very small , the dep . is the diff . long . TO FIND THE LONGITUDE IN ...
... diff . long . in a distance column . Name the diff . long . the same as the dep .; East if dep . is East ; West if dep . is West . When the lat . is nothing , or very small , the dep . is the diff . long . TO FIND THE LONGITUDE IN ...
Muita painoksia - Näytä kaikki
Yleiset termit ja lausekkeet
altitude Sun's lower apparent ship azimuth and error bearing by compass Certificate chronometer common logarithms corr correct magnetic Cosine Course and Distance Course South Decl Departure Difference of Longitude Divide dunnage error of compass eye 17 feet eye 20 feet fast for mean Fixed greater Green Greenwich date Greenwich mean height of eye Hour angle index error Knots lower limb North magnetic bearing Mate mean noon Mercator's principle miles Multiply noon at Greenwich North of observer P.M. at ship P.M. tide Parallel Sailing point in lat Polar dist Required the Course Required the deviation Required the error Required the latitude Required the longitude Required the true Secant Semidiam ship's head Sine subtract the less sun's bearing Sun's lower limb supposing the variation Table 18 Table 24 Table 33 True alt true altitude True amp true azimuth Variation 1 pt watch 11h zenith distance
Suositut otteet
Sivu 84 - ... abaft the beam on the starboard side, and of such a character as to be visible on a dark mght, with a clear atmosphere, at a distance of at least two miles. (c.) On the...
Sivu 86 - A vessel which, is closehauled on the port tack shall keep out of the way of a vessel which is closehauled on the starboard tack. (c) When both are running free, with the wind on different sides, the vessel which has the wind on the port side shall keep out of the way of the other.
Sivu 84 - ... use : and shall, on the approach of or to other vessels, be exhibited on their respective sides in sufficient time to prevent collision, in such manner as to make them most visible, and so that the green light shall not be seen on the port side nor the red light on the starboard side, nor, if practicable, more than two points abaft the beam on their respective sides.
Sivu 86 - If two ships under steam are meeting end on, or nearly end on, so as to involve risk of collision, each shall alter her course to starboard, so that each may pass on the port side of the other.
Sivu 86 - When two steam vessels are meeting end on, or nearly end on, so as to involve risk of collision, each shall alter her course to starboard so that each may pass on the port side of the other.
Sivu 84 - ... from right ahead to two points abaft the beam on the port side, and of such a character as to be visible at a distance of at least two miles.
Sivu 86 - If two ships under Steam are meeting end on, or nearly end on, so as to involve risk of collision, the helms of both shall be put to port, so that each may pass on the port side, of the other.
Sivu 85 - A vessel under one hundred and fifty feet in length when at anchor shall carry forward, where it can best be seen, but at a height not exceeding twenty feet above the hull, a white light, in a lantern so constructed as to show a clear, uniform, and unbroken light visible all around the horizon at a distance of at least one mile.
Sivu 110 - London, (the act of God, the queen's enemies, fire, and all and every other dangers and accidents of the seas, rivers, and navigation, of whatever nature and kind soever, excepted,) unto order or to assigns, he or they paying freight for the said goods at 51.
Sivu 85 - ... sufficient time to prevent collision, in such manner as to make them most visible, and so that the green light shall not be seen on the port side, nor the red light on the starboard side. To make the use of these portable lights more certain and easy...