A guide book to the Local marine board examination. The ordinary examination. [With] The requisite elements from the Nautical almanac for 1865, for the exercises in Ainsley's Guide book |
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128 ÆäÀÌÁö
... altitude , 1o . TO CORRECT THE SUN'S ALTITUDE . RULE XLVIII . Correct the observed altitude of the sun for index error , if any . 20. Subtract the dip answering to height of eye ( Table V , Norie , and Table XXX , Rapor ) ; the ...
... altitude , 1o . TO CORRECT THE SUN'S ALTITUDE . RULE XLVIII . Correct the observed altitude of the sun for index error , if any . 20. Subtract the dip answering to height of eye ( Table V , Norie , and Table XXX , Rapor ) ; the ...
129 ÆäÀÌÁö
... altitude 39 20 7 True altitude 39 20 I Ex . 2. 1865 , June 18th , the observed altitude sun's L.L. 71 ¡Æ 19 ¡Ç 20 ¡Ç¡Ç , index cor- rection + 3 ' 46 ' , height of eye 18 feet ; required the true altitude . Obs . alt , sun's L.L. 71 ¡Æ 19 ...
... altitude 39 20 7 True altitude 39 20 I Ex . 2. 1865 , June 18th , the observed altitude sun's L.L. 71 ¡Æ 19 ¡Ç 20 ¡Ç¡Ç , index cor- rection + 3 ' 46 ' , height of eye 18 feet ; required the true altitude . Obs . alt , sun's L.L. 71 ¡Æ 19 ...
130 ÆäÀÌÁö
Thomas Liddell Ainsley. Ex . 4. 1865 , August 8th , observed altitude sun's U.L. 12 ¡Æ 52 ¡Ç 30 ¡Ç¡Ç , index correction +3 ' 10 " , height of eye 17 feet . Obs , alt . sun's U.L. 12 ¡Æ 52 ¡Ç 30 ¡Ç¡Ç • Index correction + 3 10 Obs . alt . sun's ...
Thomas Liddell Ainsley. Ex . 4. 1865 , August 8th , observed altitude sun's U.L. 12 ¡Æ 52 ¡Ç 30 ¡Ç¡Ç , index correction +3 ' 10 " , height of eye 17 feet . Obs , alt . sun's U.L. 12 ¡Æ 52 ¡Ç 30 ¡Ç¡Ç • Index correction + 3 10 Obs . alt . sun's ...
131 ÆäÀÌÁö
... altitude of the sun's L.L. ( lower limb ) was 59 ¡Æ 42 ¡Ç 10 ¡Ç¡Ç , bearing north ; index error + 2 ¡Ç 10 ¡Ç¡Ç , height of eye 14 feet : required the latitude . The observation was made when the sun was on the meridian , that is , at apparent ...
... altitude of the sun's L.L. ( lower limb ) was 59 ¡Æ 42 ¡Ç 10 ¡Ç¡Ç , bearing north ; index error + 2 ¡Ç 10 ¡Ç¡Ç , height of eye 14 feet : required the latitude . The observation was made when the sun was on the meridian , that is , at apparent ...
132 ÆäÀÌÁö
... altitude Semi - diameter 5956 33 + 16 18 90 0 O True altitude 59 56 28 90 O O ... height - Obs . alt . sun's L.L. Index correction 56 ¡Æ 56 ¡Ç 56 ¡Ç¡Ç S. 3 4 ... eye 12 feet . Greenwich date 20d 16h 41m 123 . Decl . 20th 132 FINDING THE ...
... altitude Semi - diameter 5956 33 + 16 18 90 0 O True altitude 59 56 28 90 O O ... height - Obs . alt . sun's L.L. Index correction 56 ¡Æ 56 ¡Ç 56 ¡Ç¡Ç S. 3 4 ... eye 12 feet . Greenwich date 20d 16h 41m 123 . Decl . 20th 132 FINDING THE ...
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A.M. at ship altitude of sun's altitude sun's L.L. anchor astream bearing by compass boiler Bottomry brace Bristol Channel cargo charter-party chronometer column common logarithms compass course cosec cosine course and distance daily decl declination deviation diff difference of latitude difference of longitude dunnage East equator eye 18 feet fathoms fixed light given Green Greenwich date Greenwich mean haul height of eye helm high water hour-angle index corr index correction lightvessel London Bridge mantissa mast mast-head master MATE mean noon Mercator's middle latitude miles minutes Nautical Almanac Norie North observed altitude sun's observed meridian altitude P.M. apparent P.M. tides parallel sailing Polar dist port Raper Required the course required the latitude Rule sail secant Semi-diameter semid set by compass Ship date sine South steam subtract topmast True altitude true azimuth true course vessel wind yard ¥É¥Ï
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221 ÆäÀÌÁö - 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.
221 ÆäÀÌÁö - 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.
220 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. (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.
221 ÆäÀÌÁö - If two ships under steam are crossing so as to involve risk of collision, the ship which has the other on her own starboard side shall keep out of the way of the other.
221 ÆäÀÌÁö - When two sailing ships are crossing so as to involve risk of collision, then, if they have the wind on different sides, the ship with the wind on the port side shall keep out of the way...
220 ÆäÀÌÁö - 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.
220 ÆäÀÌÁö - Pilot vessels, when engaged on their station on pilotage duty, shall not show the lights required for other vessels, but shall carry a white light at the masthead, visible all round the horizon, and shall also exhibit a flare-up light or flare-up lights at short intervals, which shall never exceed fifteen minutes.
221 ÆäÀÌÁö - 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.
219 ÆäÀÌÁö - A bright White Light at the Foremast Head. A Green Light on the Starboard side. A Red Light on the Port side.
220 ÆäÀÌÁö - Open boats shall not be required to carry the side lights required for other vessels, but shall, if they do not carry such lights, carry a lantern having a green slide on...