Question 24Navigation Problems70% to pass
You are underway on course 106°T at a speed of 15.3 knots. You sight a buoy bearing 109°T at a radar range of 3.6 miles at 1725. If you change course at 1728, what is the course to steer to leave the buoy abeam to port at 0.5 mile?
AI Explanation
The correct answer is D) 120°T.
To arrive at this answer, we need to consider the relative positions of the vessel and the buoy, as well as the time elapsed between the initial sighting and the course change.
Given:
- Initial course: 106°T
- Initial speed: 15.3 knots
- Buoy bearing: 109°T
- Radar range to buoy: 3.6 miles
- Time elapsed: 3 minutes
To leave the buoy abeam to port at 0.5 mile, the vessel needs to steer a course of 120°T. This course will allow the vessel to pass the buoy at the desired distance and bearing.
The other options are incorrect because:
A) 100°T would result in the vessel passing too close to the buoy.
B) 117°T would result in the vessel passing too far from the buoy.
C) 125°T would result in the vessel passing too far from the buoy.
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