At 1000 buoy "PI" is abeam to starboard a...

Question 1 of 29218fork_1be284f5255b4894920

At 1000 buoy "PI" is abeam to starboard a distance of 0.5 mile. From this position, with a set of 295° and a drift of 1.6 knots, what course must you steer to arrive at a point with Buoy "TE" one mile abeam to starboard?

Back

Question 1 of 29218

🔍 Key Concepts

• Set and drift of the current relative to your intended track • How to construct a current triangle (vector triangle) to find the course to steer through the water • Meaning of "abeam to starboard" at different points on the track

💭 Think About

• What is the true course from your present position (PI abeam 0.5 NM to starboard) to the point where TE will be 1 NM abeam to starboard, ignoring current? • Once you know that desired track, how does a current setting 295° at 1.6 knots push your vessel off that track during the time you are on it? • How do you adjust your heading through the water so that your track over the ground still follows the desired line between those two abeam positions?

✅ Before You Answer

• Compute or plot the desired track line between the two ground positions defined by “PI abeam 0.5 NM starboard” and “TE abeam 1.0 NM starboard”. • From your estimated speed through the water, check how long you will be on that leg and thus how far the current will set you. • Ensure you apply the current correction angle in the correct direction (up-current or down-current) when selecting the nearest course from the choices.