 | Richard Marriotte Pugsley - 1915 - 304 páginas
...different for every point of the compass. Q. 135, 88. When swinging ship to construct a deviation table, what is the least number of points to which the ship's head should be brought? Ans. Eight equidistant points. \ Q. 136, 89. How often would you test the deviation table? Ans. As... | |
 | John William Norie, J. W. Saul - 1917 - 642 páginas
...the deviation is Easterly ; if to the left, Westerly. 6. Why is it necessary, in order to ascertain the deviations, to bring the ship's head in more than one direction ? Because the deviation changes in amount, as well as in the direction in which it is to be applied,... | |
 | James Gill - 1918 - 468 páginas
...applied, and its special advantages. 57. Describe clearly how the Napier's diagram is constructed. 58. For accuracy, what is the least number of points to which the ship's head should be brought for constructing a complete curve of deviations, or a complete table of deviations ? 59. Nearing land,... | |
 | James Gill - 1918 - 466 páginas
...how do you know when it is easterly and when westerly t 6. Why is it necessary, in order to ascertain the deviations, to bring the ship's head in more than one direction i 7. For accuracy, what is the least number of points to which the ship's head should be brought for... | |
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Having determined the deviation with the ship's head on the various points of the compass, how do you know when it is easterly and when westerly ? 4. 
