At 2050 Montauk Point Light is bearing 337° true at a range of 8nm, from this position, you change course in order to pass 1 mile due east of Montauk Point Lighted Whistle Buoy "MP". If there are no set and drift, what course must you steer?
• Relative positions between your DR position, Montauk Point Light, and Whistle Buoy "MP" • Using a right triangle to find the course to a point offset (1 nm east) from a known object • Converting a bearing from an object to you into your position relative to the object
• Sketch Montauk Point Light, your vessel, and Buoy "MP" on a simple plotting sheet. Where are you relative to the light at 2050? • From your plotted position, first draw the line to the buoy itself. Then, how would you show the point that is 1 nm due east of the buoy? • Once that offset point is plotted, what is the true course from your 2050 position to that offset point? Compare that angle to the answer choices.
• Be sure you understand that a bearing of 337°T of the light from you means your position is on the reciprocal bearing from the light • Confirm you are measuring the final course from your vessel TO the offset point, not from the light or the buoy • Check whether your answer is a reasonable angle given where you are (north/south/east/west) of Montauk Point Light on your sketch.
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