A Guide to the Local Marine Board Examinations of Masters and MatesSimpkin, Marshall&Company, 1872 - 178 sivua |
Kirjan sisältä
Tulokset 1 - 5 kokonaismäärästä 25
Sivu 42
... sine of corrected Declination ; the sum will be the log . sine of the true amplitude ; Logs . from Table 25 . Lat . Secant Decl . Sine True Amp . Sine ...... } ac add . ......... TO NAME THE TRUE AMPLITUDE . - Name it from the East if ...
... sine of corrected Declination ; the sum will be the log . sine of the true amplitude ; Logs . from Table 25 . Lat . Secant Decl . Sine True Amp . Sine ...... } ac add . ......... TO NAME THE TRUE AMPLITUDE . - Name it from the East if ...
Sivu 43
... Sine True amplitude W. 5 ° 15 ' S. Compass amp . W. 10 30 S. Error of compass 5 15 E. , 10 , Table 25 = 0.147753 " " = 8.813667 add . Sine 8.961420 because the true is to the right of the compass . 1874. - March 29th , at 6h 20m . A. 43.
... Sine True amplitude W. 5 ° 15 ' S. Compass amp . W. 10 30 S. Error of compass 5 15 E. , 10 , Table 25 = 0.147753 " " = 8.813667 add . Sine 8.961420 because the true is to the right of the compass . 1874. - March 29th , at 6h 20m . A. 43.
Sivu 44
... Sine 8.929715 because true is left of compass . 1874. June 3rd , at 3h . 54m . A.M. , App . T. Ship ; in lat . 50 ... Sine 9.580085 E. 37 ° 1 ' N. Sine 9.779658 Comp . amp . E. 39 30 N. ... Error of comp ....... 2 29 E. Variation ...
... Sine 8.929715 because true is left of compass . 1874. June 3rd , at 3h . 54m . A.M. , App . T. Ship ; in lat . 50 ... Sine 9.580085 E. 37 ° 1 ' N. Sine 9.779658 Comp . amp . E. 39 30 N. ... Error of comp ....... 2 29 E. Variation ...
Sivu 45
... Sine 6.764756 True amp . W. 0 ° 2 ' S. Sine 6.799141 Comp . amp . W. 2 0 N. Error Variation 2 2 W. 11 0 E. Deviation 13 2 W. AMPLITUDES . 1. 1874. January 19th , at 5h . 4m P.M. , Apparent time at ship : in lat . 30 ° 30 ' : long . 50 ...
... Sine 6.764756 True amp . W. 0 ° 2 ' S. Sine 6.799141 Comp . amp . W. 2 0 N. Error Variation 2 2 W. 11 0 E. Deviation 13 2 W. AMPLITUDES . 1. 1874. January 19th , at 5h . 4m P.M. , Apparent time at ship : in lat . 30 ° 30 ' : long . 50 ...
Sivu 48
... Sine Remainder . } 10 subtracted from index of each . The sum of these four logs . , subtracting 10 from the index . is the log . of the Hour angle found in Table 31 , Norie . Polar distance greater than 90 ° . To find the log ...
... Sine Remainder . } 10 subtracted from index of each . The sum of these four logs . , subtracting 10 from the index . is the log . of the Hour angle found in Table 31 , Norie . Polar distance greater than 90 ° . To find the log ...
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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...