| The obscure concepts of the rhumb line, the loxodrome, and spherical trigonometry were also beyond their grasp. |
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| Then, we'll sail on a rhumb line straight in and hope the only ships we meet are ours. |
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| A new globe which he produced in 1541 was the first to have rhumb lines shown on it. |
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| In the northern hemisphere, a great circle track between two waypoints lies to the north of a rhumb line joining those same waypoints. |
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| Because the meridians cross all grid lines at the same angle they are fictitious rhumb lines. |
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| Most take the rhumb line, the most direct route from Chicago to the island up the middle of the lake. |
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| As the breeze was blowing directly up the rhumb line from astern, the idea was to jibe downwind for maximum speed. |
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| The charts were covered by a network of intersecting rhumb lines radiating from compass roses, corresponding to wind directions. |
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| Until the 19th century ships generally sailed along rhumb lines, which made use of prevailing winds and fixed compass headings. |
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| As the latitude increases the use of rhumb lines for visual bearings becomes awkward, as it is necessary to add ever larger convergency corrections. |
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| The portolan charts were characterized by rhumb lines, lines that radiate from the centre in the direction of wind or compass points and that were used by pilots to lay courses from one harbour to another. |
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| Over long distances the rhumb lines could not be taken as straight, and the charts bore no relation to the new methods of checking the dead reckoning that Portuguese astronomers and mathematicians had devised. |
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| Someone sitting at the computer screen could generate a custom-made map in the time it must have taken early chartmakers to draw a single rhumb line as a bearing for mariners navigating a wide sea. |
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| A straight line course plotted between two waypoints on a mercator chart is a rhumb line, defined as a line on the earth's surface cutting the meridians of longitude at the same angle. |
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| The rhumb line versus great circle path offset becomes a danger only if the mariner has not laid off a great circle course on a Gnomonic chart, ensuring the vessel will pass clear of all navigational dangers. |
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| The course and distances displayed by a microprocessor-based Loran-C receiver, used in the waypoint mode, are normally computed for a great circle track, not a rhumb line. |
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| Mercator's solution was to make the scale of his chart increase with latitude in a very special way such that the rhumb lines became straight lines on his new world map. |
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| A ship will follow a loxodrome, or rhumb line, by maintaining a constant compass reading that can only be plotted on a Mercator chart with accuracy. |
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| The principal feature of the projection is that Rhumb lines, sailing courses at a constant bearing, are mapped to straight lines on the map. |
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