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20 Cards in this Set
- Front
- Back
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L |
Lattitude |
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Lo |
Longitude |
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l |
Difference of lattitude |
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DLo |
Difference of Longitude (angular measurement) |
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D |
Distance |
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Cn |
Course (mathematical) |
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L1 and l1 |
Latitude and longitude of point of departure |
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L2 and l2 |
Coordinates of the destination |
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Lv and lv |
Coordinates of the vertex of a great circle (point on the circle farthest from the equator) |
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p |
Departure |
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Departure |
p- the linear measurement, in nm, of an arc of a parallel included between two meridians. Marked E and W for the direction in which it is measured. |
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C |
Course Angle |
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Course Angle |
The inclination of the course line to the meridian measured at 0° at the reference direction (N or S) clockwise or counterclockwise through 90° and 180° |
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Lm |
Middle lattitude |
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Mid-lattitude |
The lattitude that is found by taking the mean value of L1 and L2 both being on the same side of the equator. |
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M |
Meridional Parts |
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Meridional Parts |
The length of a meridian on a Mercator chart as expanded between the equator and any given latitude. Exoressed in units of 1' of arc of the equator, constitutes the numver of Meridional parts of that latitude. |
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M1 and M2 |
M of latitude of the point of departure and M of latitude at the destination respectively |
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m |
Meridional difference |
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Meridional Difference |
The absolute difference M1~M2 (M1-M2 or M2-M1 as determined by which is the larger) |
