Slayt 1

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DEPARTURE
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Prepared by Selçuk NAS
This presentation is required office XP
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RESEMBLANCE BETWEEN TRIANGLE (A C B) AND
TRIANGLE (D F E)
Pn
F
D
E
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C
A
B
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DEPARTURE
The distance in nautical miles measured along a
parallel due EAST or WEST between two meridians
Pn
Long A
Long B
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Pn
Lat B
Lat A
Long (AB)
distance dlat dlat Lat A Lat B
dlong 0 departure 0
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Pn
Lat (AB)
Long A
Long B
distance depature dlat 0 dlong
Long A Long B departure dlong . Cos Lat
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Pn
Lat B
Lat A
Mid Lat
Long A
Long B
distance dlat / Sin C0 dep / Cos C0 dlat
Lat A Lat B dep . Tan C0 dist .
Sin C0 dlong Long A Long B dep / Cos
Mid Lat departure dlong . Cos Mid Lat dlat /
Tan C0 dist . Cos C0
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Pn
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