From your 0847 fix, you change course to arrive at the rendezvous position and, correcting for current, you estimate your speed over the ground at 15 knots. What is your ETA at the rendezvous?
• Speed–Time–Distance relationship for ETA problems • Converting knots to minutes per nautical mile • Counting time correctly from a given fix time (0847) to arrival
• How many nautical miles would you travel in one minute at 15 knots? From that, how many minutes are needed to cover the distance to the rendezvous? • Once you know the number of minutes to travel, what is the correct way to add those minutes to 0847, watching for the change of the tens digit in the minutes column? • Do any of the answer choices suggest a very short run (just a couple of miles) versus a longer run? Which seems most consistent with a typical short leg to a rendezvous at 15 knots?
• Compute minutes per mile at 15 knots before doing any time addition. • Carefully add minutes to 0847, checking for carrying over when minutes exceed 59. • Mentally estimate whether the distance to the rendezvous seems like a short leg (under 5 NM) or longer leg, and see which answers match that travel time.
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