Worksheet 20 · Skill 6
Course to steer
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You are at 038°T, 2.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 196°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 268°T, 3.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 156°T at 1.6 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 006°T, 1.7 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 046°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 110°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 318°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
You are at 036°T, 3.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.5 kn. The current sets 130°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 328°T, 1.8 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.6 kn. The current sets 257°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 027°T, 2.5 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 5.8 kn. The current sets 146°T at 1.9 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
You are at 024°T, 2.6 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 5.2 kn. The current sets 079°T at 2.5 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: 138 °T Speed over the ground: 10.9 kn Time to the mark: 24 min | No. 20001 (worked solution) |
| 2 | Course to steer: 124 °T Speed over the ground: 6.5 kn Time to the mark: 21 min | No. 20002 (worked solution) |
| 3 | Course to steer: 278 °T Speed over the ground: 6.5 kn Time to the mark: 51 min | No. 20003 (worked solution) |
| 4 | Course to steer: 265 °T Speed over the ground: 9.9 kn Time to the mark: 41 min | No. 20004 (worked solution) |
| 5 | Course to steer: 166 °T Speed over the ground: 7.3 kn Time to the mark: 42 min | No. 20005 (worked solution) |
| 6 | Course to steer: 176 °T Speed over the ground: 7.3 kn Time to the mark: 26 min | No. 20006 (worked solution) |
| 7 | Course to steer: 023 °T Speed over the ground: 5.0 kn Time to the mark: 84 min | No. 20007 (worked solution) |
| 8 | Course to steer: 026 °T Speed over the ground: 7.0 kn Time to the mark: 60 min | No. 20008 (worked solution) |