Reed's New guide book to the local marine board examinations of masters and mates for certificates of competency. By J.J. Stiles |
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Página 23
... true altitude of the Sun's centre . The result 7. Subtract the true alt . from 90 ° 00 ′ 00 ′′ , for the Zenith distance , naming it always the opposite to the bearing . 8. To the Zenith distance apply the corrected declination ; adding ...
... true altitude of the Sun's centre . The result 7. Subtract the true alt . from 90 ° 00 ′ 00 ′′ , for the Zenith distance , naming it always the opposite to the bearing . 8. To the Zenith distance apply the corrected declination ; adding ...
Página 24
... True alt . 48 00 00 11 6 6 90 00 00 Z. dist . Cor . dec . Latitude 42 00 00 N. 36 18 37 00 S. 23 23 00 N. EXAMPLE II . 1870 , February 27th , in longitude 155 ° E. , the observed meridian altitude of the Sun's 1. 1. was 57 ° 46 ′ 10 ...
... True alt . 48 00 00 11 6 6 90 00 00 Z. dist . Cor . dec . Latitude 42 00 00 N. 36 18 37 00 S. 23 23 00 N. EXAMPLE II . 1870 , February 27th , in longitude 155 ° E. , the observed meridian altitude of the Sun's 1. 1. was 57 ° 46 ′ 10 ...
Página 25
... True alt . 57 53 20 11 5 90 00 00 6 Z. dist . 32 06 40 S 30 Cor . dec . 8 27 38 S Latitude 40 34 18 S PARALLEL SAILING . Add together the log Secant of the latitude and the common log of the departure , rejecting 10 from the index ; the ...
... True alt . 57 53 20 11 5 90 00 00 6 Z. dist . 32 06 40 S 30 Cor . dec . 8 27 38 S Latitude 40 34 18 S PARALLEL SAILING . Add together the log Secant of the latitude and the common log of the departure , rejecting 10 from the index ; the ...
Página 29
... true amplitude . 5. The true amplitude is to be named always from the E. if a . M. , and from the W. if P. M. , and towards the N. or S. as the cor . declination . 6. Put the magnetic or observed amplitude under the true ; add them ...
... true amplitude . 5. The true amplitude is to be named always from the E. if a . M. , and from the W. if P. M. , and towards the N. or S. as the cor . declination . 6. Put the magnetic or observed amplitude under the true ; add them ...
Página 30
... True amp . . W. 39 ° 36 ′ N. Sine 9.804485 W E Mag . amp . W. 27 45 N. Variation 11 51 East . S EXAMPLE II . 1870 , May 12th , at 5h . 32m . A. M. , apparent time at ship , in latitude 20 ° 10 ' N. , longitude 30 ° W. , the magnetic ...
... True amp . . W. 39 ° 36 ′ N. Sine 9.804485 W E Mag . amp . W. 27 45 N. Variation 11 51 East . S EXAMPLE II . 1870 , May 12th , at 5h . 32m . A. M. , apparent time at ship , in latitude 20 ° 10 ' N. , longitude 30 ° W. , the magnetic ...
Otras ediciones - Ver todas
Reed's New Guide Book To The Local Marine Board Examinations Of Masters And ... Ltd,Reed Thomas and Co,James Jonathan Stiles Sin vista previa disponible - 2019 |
Reed's New Guide Book to the Local Marine Board Examinations of Masters and ... Ltd,Reed Thomas and Co,James Jonathan Stiles Sin vista previa disponible - 2019 |
Reed's New Guide Book to the Local Marine Board Examinations of Masters and ... Ltd, Becom,Reed Thomas and Co,James Jonathan Stiles Sin vista previa disponible - 2015 |
Términos y frases comunes
A. M. and P. M. ADDITIONAL FOR MASTER B-Long Barometer Beachy Head bearing by compass boilers BRISTOL CHANNELS Cape cargo Channel Chart Charter-party common logs Compass Course Cosine Course and Distance d.lat diff Dist dunnage East engine English Channel examination eye 16 feet Find the A. M. Find the latitude Find the longitude Find the variation flag Hartlepool height Home-trade Passenger Ship Hour Angle index error Island latitude by account Light bearing Light Vessel Long longitude by chronometer Marine Board meridian altitude miles North North Foreland observed altitude observed meridian altitude P. M. at ship P. M. tides parallel sailing pennant pier head port Required the Compass Required the course Required the d.long revol rock Secant SECOND MATE ship by compass signals Sine South Steam Ships subtract Sunderland Table True Alt True Amp ture was taken Tynemouth West wind
Pasajes populares
Página 92 - ... 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.
Página 94 - In obeying and construing these rules due regard must be had to all dangers of navigation ; and due regard must also be had to any special circumstances which may exist in any particular case rendering a departure from the above rules necessary in order to avoid immediate danger.
Página 92 - On the starboard side, a green light so constructed as to show an uniform and unbroken light over an arc of the horizon of 10 points of the compass ; so fixed as to throw the light from right ahead to 2 points abaft the beam...
Página 93 - 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.
Página 91 - Rules every steam vessel which is under sail and not under steam is to be considered a sailing vessel, and every vessel under steam, whether under sail or not, is to be considered a steam vessel. The word " steam vessel " shall include any vessel propelled by machinery. A vessel is
Página 94 - Every steamship, when approaching another ship so as to involve risk of collision, shall slacken her speed, or if necessary stop and reverse ; and every steamship shall, when in a fog, go at a moderate speed.
Página 92 - Whenever, as in the case of small vessels during. bad weather, the green and red side lights cannot be fixed, these lights shall be kept on deck, on their respective sides of the vessel, ready for 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.
Página 93 - Lights required for other Vessels ; but shall, if they do not carry such Lights, carry a Lantern having a Green Slide on the One Side, and a Red Slide on the other Side ; and on the Approach of or to other Vessels, such Lantern shall be exhibited in sufficient time to prevent Collision, so that the Green Light shall not be seen on the Port Side, nor the Red Light on the Starboard Side.
Página 94 - Nothing in these rules shall exonerate any ship, or the owner, or master, or crew thereof, from the consequences of any neglect to carry lights or signals, or of any neglect to keep a proper look-out, or of the neglect of any precaution which may be required by the ordinary practice of seamen, or by the special circumstances of the case.
Página 93 - ... (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.