Worksheet 373 · Skill 6
Course to steer
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You are at 248°T, 2.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.9 kn. The current sets 089°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 143°T, 1.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.1 kn. The current sets 148°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 335°T, 0.9 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 153°T at 1.3 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 295°T, 3.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.8 kn. The current sets 317°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 340°T, 1.0 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 7.5 kn. The current sets 127°T at 1.4 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 282°T, 2.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.7 kn. The current sets 214°T at 2.3 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 027°T, 2.6 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 5.2 kn. The current sets 142°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 009°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.2 kn. The current sets 254°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 282 °T Speed over the ground: 8.6 kn Time to the mark: 21 min | No. 373001 (worked solution) |
| 2 | Course to steer: 100 °T Speed over the ground: 12.7 kn Time to the mark: 14 min | No. 373002 (worked solution) |
| 3 | Course to steer: 067 °T Speed over the ground: 9.0 kn Time to the mark: 15 min | No. 373003 (worked solution) |
| 4 | Course to steer: 182 °T Speed over the ground: 10.0 kn Time to the mark: 27 min | No. 373004 (worked solution) |
| 5 | Course to steer: 060 °T Speed over the ground: 8.1 kn Time to the mark: 22 min | No. 373005 (worked solution) |
| 6 | Course to steer: 190 °T Speed over the ground: 12.8 kn Time to the mark: 14 min | No. 373006 (worked solution) |
| 7 | Course to steer: 033 °T Speed over the ground: 5.0 kn Time to the mark: 83 min | No. 373007 (worked solution) |
| 8 | Course to steer: 098 °T Speed over the ground: 9.9 kn Time to the mark: 23 min | No. 373008 (worked solution) |