Pugsley's Dead Reckoning, Including the Various Methods of Finding Course and Distance by Mercator and Middle Latitude Sailings: And Examination Specialty |
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7 ÆäÀÌÁö
The sign of equality : indicates that the quantities between which it is placed are
equal , as in latitude 30¡Æ , departure 60 ' = difference of longitude 120 ' .
DECIMAL POINT . The sign indicating by its position the MATHEMATICAL SIGNS
...
The sign of equality : indicates that the quantities between which it is placed are
equal , as in latitude 30¡Æ , departure 60 ' = difference of longitude 120 ' .
DECIMAL POINT . The sign indicating by its position the MATHEMATICAL SIGNS
...
13 ÆäÀÌÁö
The correction will be found opposite in the column of differences next to that
from which the loragithm is taken and is added or subtracted , according to the
next logarithm being more or less . Up to and including 4¡Æ and other angles on
the ...
The correction will be found opposite in the column of differences next to that
from which the loragithm is taken and is added or subtracted , according to the
next logarithm being more or less . Up to and including 4¡Æ and other angles on
the ...
15 ÆäÀÌÁö
Difference of latitude is the quantity taken for each corrected course and distance
from the latitude column in Tables I or 2 , taking care to use the top or bottom
according to the course . They are entered in the traverse table DEFINITIONS ...
Difference of latitude is the quantity taken for each corrected course and distance
from the latitude column in Tables I or 2 , taking care to use the top or bottom
according to the course . They are entered in the traverse table DEFINITIONS ...
16 ÆäÀÌÁö
Middle latitude is half the sum of the two latitudes between which a course and
distance may be wanted . It is used for converting difference of longitude into
departure or departure into difference of longitude , using Table 2 . Meridional
parts is ...
Middle latitude is half the sum of the two latitudes between which a course and
distance may be wanted . It is used for converting difference of longitude into
departure or departure into difference of longitude , using Table 2 . Meridional
parts is ...
18 ÆäÀÌÁö
To find the deviation for S . 1 / 2 E . , take the deviations from the table for S . and
S . by E . and half their difference named after the greater will be the deviation for
S . 12 E . Dev . — 3¡Æ 00 ' E . S . by E . " 6 00 W . 2 ) 3 00 Dev . for S . 72 E . Ans ...
To find the deviation for S . 1 / 2 E . , take the deviations from the table for S . and
S . by E . and half their difference named after the greater will be the deviation for
S . 12 E . Dev . — 3¡Æ 00 ' E . S . by E . " 6 00 W . 2 ) 3 00 Dev . for S . 72 E . Ans ...
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add the logarithm adding applicant bearing boats Cape Cape Horn carry coastwise steam vessels column compass course convert course and distance decimal departure deviation difference of latitude difference of longitude direction Dist divide east Enter Table examination EXAMPLE NUMBER experience feet Find the course Find the difference fishing gives the logarithm glass grade gross tons half indicating inspection inspectors keep latitude and longitude latitude column leeway less license Long master mate mate of ocean meridional difference Middle lat miles and name navigation necessary noon officer person pilot point in latitude point left port position practice Prop proper difference Pugsley's renewal result rules sail vessels Service ship ship has sailed ship's side signals storm subtracted tack taken tang third tion track white light wind
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137 ÆäÀÌÁö - On the starboard side a green light so constructed as to show an unbroken light over an arc of the horizon of ten points of the compass, so fixed as to throw the light from right ahead to two points abaft the beam on...
149 ÆäÀÌÁö - 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.
150 ÆäÀÌÁö - Where by any of these rules one of two vessels is to keep out of the way, the other shall keep her course and speed.
151 ÆäÀÌÁö - Every vessel coming up with another vessel from any direction more than two points abaft her beam, that is, in such a position, with reference to the vessel which she is overtaking that at night she would be unable to see either of that vessel's side-lights, shall be deemed to be an overtaking vessel...
146 ÆäÀÌÁö - Every vessel may, if necessary in order to attract attention in addition to the lights which she is by these rules required to carry, show a flare-up light or use any detonating signal that cannot be mistaken for a distress signal.
152 ÆäÀÌÁö - My engines are going at full speed astern." PRECAUTION. ART. 29. Nothing in these rules shall exonerate any vessel, 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 lookout, 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.
147 ÆäÀÌÁö - sailing vessels" and "vessels towed" on the fog horn. The words "prolonged blast" used in this article shall mean a blast of from four to six seconds duration.
152 ÆäÀÌÁö - When a vessel is in distress and requires assistance from other vessels or from the shore, the following shall be the signals to be used or displayed by her, either together or separately, viz. : — ' In the daytime — 1. A gun or other explosive signal fired at intervals of about a minute. 2. The International Code signal of distress indicated by NC 3.
140 ÆäÀÌÁö - ... mile, or a combined lantern showing a green light and a red light from right ahead to 2 points abaft the beam on their respective sides. Such lantern shall be carried not less than 3 feet below the white light.
151 ÆäÀÌÁö - Every vessel which is directed by these rules to keep out of the way of another vessel shall, if the circumstances of the case admit, avoid crossing ahead of the other.