Pugsley's New Guide to the United States Local Inspectors Examination of Masters and Mates: Of Ocean-going Steam and Sailing Ships, Containing All Useful Information and Explaining how to Find Latitude and Longitude by Observation, and Many Other Useful Calculations Not Included in the Examination,R.M. Pugsley, 1915 - 287페이지 |
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16 페이지
... Greenwich minute of observation , and that a correction for parallax must be ap- plied . Q. 6 , 4. How do you find the latitude by an altitude of the pole - star . Ans . Correct the altitude for instrumental error , dip and refraction ...
... Greenwich minute of observation , and that a correction for parallax must be ap- plied . Q. 6 , 4. How do you find the latitude by an altitude of the pole - star . Ans . Correct the altitude for instrumental error , dip and refraction ...
17 페이지
... ( Greenwich ) and apply it as directed to the local apparent time . The difference between the mean time of observation and that of Greenwich at the same instant is the longitude of the ship in time , and this is turned into degrees , etc ...
... ( Greenwich ) and apply it as directed to the local apparent time . The difference between the mean time of observation and that of Greenwich at the same instant is the longitude of the ship in time , and this is turned into degrees , etc ...
36 페이지
... found at the bottom of the proper page of the Nautical Almanac . Correct the declination for the time from Greenwich mean noon and apply it to the zenith distance in the usual way . Q. 93. How can you find the approximate time of 36 339.
... found at the bottom of the proper page of the Nautical Almanac . Correct the declination for the time from Greenwich mean noon and apply it to the zenith distance in the usual way . Q. 93. How can you find the approximate time of 36 339.
43 페이지
... Greenwich time may be found by applying the longitude in time to the ship's time . Correct the declination and find the polar distance and correct the altitude in the usual way . Add together the polar distance , latitude by account and ...
... Greenwich time may be found by applying the longitude in time to the ship's time . Correct the declination and find the polar distance and correct the altitude in the usual way . Add together the polar distance , latitude by account and ...
66 페이지
... September 8 , 1902. The true altitude of the Pole Star out of the meridian was 41 ° 40 ′ 30 ′′ . Greenwich mean time 4h 16m A. M. Longitude by account 30 ° 19 ' 15 " W. Find the latitude . G. M. T. Long . 30 ° 19 ' 15 66 66.
... September 8 , 1902. The true altitude of the Pole Star out of the meridian was 41 ° 40 ′ 30 ′′ . Greenwich mean time 4h 16m A. M. Longitude by account 30 ° 19 ' 15 " W. Find the latitude . G. M. T. Long . 30 ° 19 ' 15 66 66.
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150 gross tons abaft amplitude applicant azimuth tables barometer bearing boats buoys capacity CAPT cargo carrying passengers certificate chart chief mate Chro chronometer collision compass error correction cosine course and distance deck deck department declination deviation Diff difference of latitude dist dunnage equa equipped examination feet Find the latitude fire Greenwich mean gross tons heave-to Height of eye hour angle inches inspection knots Latitude by account less license as master life-preservers lifeboats logarithm longitude by account longitude by chronometer Mercator chart meridian altitude miles Nautical Almanac navigation noon observed altitude officer original license person pilot house points polar distance PUGSLEY'S pump R. M. PUGSLEY rafts right ascension rowlock rules sail vessels Semi-diam semicircle ship ship's side signals star's steam vessels steamers stow subtract supervising inspector table 44 tion towing true altitude true azimuth tude white light wind