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Given:

Position A 45°N, °E
Position B 45°N, 45°15’E
Distance between A and B: 280 NM
B is to the east of A

What is the longitude of position A?

  • A
    38°39’E
  • B
    49°57’E
  • C
    51°51’E
  • D
    40°33’E

Departure = ChLong x CosLat

ChLong = Dep/CosLat = 280/Cos45° = 280/0.707 = 396' = 6°36' Ch Long

45°15'E - 6°36' = 38°39'E.

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