## 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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MULTIPLICATION To multiply one

Table 42 , and when properly indexed ... so there will be one more than the index

, will be the product wanted . ne interse the nun from

MULTIPLICATION To multiply one

**number**by another , select the logarithms fromTable 42 , and when properly indexed ... so there will be one more than the index

, will be the product wanted . ne interse the nun from

**Example**: Multiply 203 . 12 ÆäÀÌÁö

DIVISION • To divide one

42 and when properly indexed , subtract the logarithm of the divisor from that of

the dividend , adding ... 36173 261 261

.

DIVISION • To divide one

**number**by another , select the logarithms from Table42 and when properly indexed , subtract the logarithm of the divisor from that of

the dividend , adding ... 36173 261 261

**Example**: Divide 7 by 8 . index + 10 = 10.

13 ÆäÀÌÁö

... seconds or reduce the seconds to a decimal part of a mile and by it multiply the

when a correction column is not given . 1 .

... seconds or reduce the seconds to a decimal part of a mile and by it multiply the

**number**from the correction column . The logarithm is taken for the nearest milewhen a correction column is not given . 1 .

**Example**: Find the logarithm sine for ... 32 ÆäÀÌÁö

Enter Table 2 with the difference of latitude and departure , and where they agree

, or nearly so , the course and distance will be found .

latitudes and longitudes to find the course and distance : A ship is in latitude ...

Enter Table 2 with the difference of latitude and departure , and where they agree

, or nearly so , the course and distance will be found .

**EXAMPLE NUMBER**I Bothlatitudes and longitudes to find the course and distance : A ship is in latitude ...

33 ÆäÀÌÁö

5 W . Enter Table 2 with the difference of latitude 174 . 9 N . and departure 150 ' .

5 W . and they will be found to agree nearly , giving the course N . 41¡Æ W . and the

distance 230 ' . o .

5 W . Enter Table 2 with the difference of latitude 174 . 9 N . and departure 150 ' .

5 W . and they will be found to agree nearly , giving the course N . 41¡Æ W . and the

distance 230 ' . o .

**EXAMPLE NUMBER**2 Both latitudes , one longitude and ...### ´Ù¸¥ »ç¶÷µéÀÇ ÀÇ°ß - ¼Æò ¾²±â

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141 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...

153 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.

154 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.

155 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...

150 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.

156 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.

151 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.

156 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.

144 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.

155 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.