Chart Navigation & Plotting · Speed-Time-Distance — ETA
You depart at 0830 with 84 NM to run at 12 knots, with no current. What is your ETA?
- A1500
- B1530✓ Correct
- C1600
- D1430
Explanation
Time to run = 84 NM ÷ 12 kt = 7.0 hours. Added to a 0830 departure gives an ETA of 1530.
Authority: Bowditch (Pub. No. 9), Speed-Time-Distance
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