Worksheet 215 · Skill 6
Course to steer
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You are at 336°T, 2.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.3 kn. The current sets 284°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 310°T, 3.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.4 kn. The current sets 328°T at 0.5 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 318°T, 1.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.5 kn. The current sets 163°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 158°T, 1.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.8 kn. The current sets 088°T at 1.7 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 049°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 245°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 138°T, 1.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.9 kn. The current sets 109°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 007°T, 2.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.8 kn. The current sets 340°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 328°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 12.0 kn. The current sets 278°T at 1.8 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 187 °T Speed over the ground: 5.3 kn Time to the mark: 58 min | No. 215001 (worked solution) |
| 2 | Course to steer: 188 °T Speed over the ground: 5.0 kn Time to the mark: 64 min | No. 215002 (worked solution) |
| 3 | Course to steer: 024 °T Speed over the ground: 4.0 kn Time to the mark: 62 min | No. 215003 (worked solution) |
| 4 | Course to steer: 247 °T Speed over the ground: 10.2 kn Time to the mark: 26 min | No. 215004 (worked solution) |
| 5 | Course to steer: 155 °T Speed over the ground: 9.0 kn Time to the mark: 29 min | No. 215005 (worked solution) |
| 6 | Course to steer: 081 °T Speed over the ground: 14.1 kn Time to the mark: 21 min | No. 215006 (worked solution) |
| 7 | Course to steer: 121 °T Speed over the ground: 5.2 kn Time to the mark: 44 min | No. 215007 (worked solution) |
| 8 | Course to steer: 244 °T Speed over the ground: 13.5 kn Time to the mark: 22 min | No. 215008 (worked solution) |