Your vessel changes course to pass a lighthouse abeam to port at 2126 while traveling at 14 knots. What will be your ETA at this position if the lighthouse is sighted dead ahead at a distance of 11 miles?

To determine the Estimated Time of Arrival (ETA) at the position of the lighthouse when passing it abeam to port, we first need to calculate how long it will take the vessel to reach the lighthouse from its current position.

The vessel is traveling at a speed of 14 knots and the distance to the lighthouse is 11 miles. The time required to cover this distance can be calculated using the formula:

Time = Distance / Speed

By substituting in the values, we have:

Time = 11 miles / 14 knots

This gives us approximately 0.7857 hours. To convert this into a more usable format, we can multiply by 60 to convert the time into minutes:

0.7857 hours * 60 minutes/hour = 47.14 minutes

Rounding this calculation gives about 47 minutes. Since the vessel passes the lighthouse abeam at 2126, we can now add the calculated time to the current time to find the ETA:

2126 + 47 minutes places the time at approximately 2213.

This is why the selection that indicates an ETA of 2213 is correct. The calculations show a clear understanding of speed, distance, and time relations tailored to Navigational practices, leading to the