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- Q135 - Navigation Problems: Oceans
412. Determine the distance from LAT 19°54.0'N, LONG 166°36.0'E to LAT 19°54.0'N, LONG 157°54.0'W, by parallel sailing.
The distance is calculated using parallel sailing, which accounts for the convergence of longitude lines at higher latitudes. The longitude difference, considering the 180 meridian, is 3530', which converts to 2130 minutes. Applying the parallel sailing formula (distance = longitude difference in minutes x cosine of latitude) with a latitude of 19.9 yields a distance of 2002.8 nautical miles.
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