Worksheet 530 · Skill 6
Course to steer
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You are at 303°T, 3.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.1 kn. The current sets 204°T at 0.8 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 084°T, 2.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.9 kn. The current sets 276°T at 1.0 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 028°T, 2.1 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 033°T at 2.4 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 028°T, 2.6 nm from Mill stack, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 046°T at 0.8 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 065°T, 1.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 228°T at 1.5 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 109°T, 1.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.3 kn. The current sets 009°T at 2.2 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 334°T, 1.8 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 011°T at 1.2 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 059°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.6 kn. The current sets 018°T at 0.9 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 089 °T Speed over the ground: 6.8 kn Time to the mark: 61 min | No. 530001 (worked solution) |
| 2 | Course to steer: 134 °T Speed over the ground: 6.1 kn Time to the mark: 22 min | No. 530002 (worked solution) |
| 3 | Course to steer: 078 °T Speed over the ground: 10.3 kn Time to the mark: 17 min | No. 530003 (worked solution) |
| 4 | Course to steer: 330 °T Speed over the ground: 11.5 kn Time to the mark: 13 min | No. 530004 (worked solution) |
| 5 | Course to steer: 101 °T Speed over the ground: 10.8 kn Time to the mark: 23 min | No. 530005 (worked solution) |
| 6 | Course to steer: 137 °T Speed over the ground: 7.1 kn Time to the mark: 23 min | No. 530006 (worked solution) |
| 7 | Course to steer: 094 °T Speed over the ground: 6.3 kn Time to the mark: 31 min | No. 530007 (worked solution) |
| 8 | Course to steer: 262 °T Speed over the ground: 8.2 kn Time to the mark: 39 min | No. 530008 (worked solution) |