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- Q135 - Navigation Problems: Oceans
438. The great circle distance from LAT 24°25.3'N, LONG 83°02.6'W to LAT 35°57.2'N, LONG 5°45.7'W is 3966.5 miles. Determine the latitude of the vertex.
The vertex latitude is calculated using the formula cos φv = cos φ1 * sin C1, where φv is the vertex latitude, φ1 is the initial latitude, and C1 is the initial course. Applying this formula with the given coordinates and distance yields a vertex latitude of 3809.4'N.
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