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- Q142 - Navigation Problems: Oceans
148. On 21 May at 0630 PDT, (ZD +7), your vessel takes departure at the San Francisco Sea Buoy, LAT 37°45.0'N, LONG 122°41.5'W, enroute to Kobe, LAT 33°52.0'N, LONG 135°00.0'E via great circle. The distance is 4,245 miles, and you estimate that you will average 14.0 knots. What will be your estimated zone time of arrival?
The estimated time of arrival in Kobe is calculated by determining the steaming time (distance divided by speed), adding it to the departure time, and then accounting for the 16-hour time zone difference between San Francisco and Kobe. This results in an ETA of 1342 on June 3rd, Kobe time.
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