Worksheet 226 · Skill 6
Course to steer
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You are at 134°T, 3.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 059°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 278°T, 1.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.9 kn. The current sets 120°T at 0.6 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 340°T, 1.4 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 234°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 285°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.7 kn. The current sets 045°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 171°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 221°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 170°T, 1.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 178°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 231°T, 1.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.9 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 048°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.9 kn. The current sets 181°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: 274 °T Speed over the ground: 7.2 kn Time to the mark: 33 min | No. 226001 (worked solution) |
| 2 | Course to steer: 218 °T Speed over the ground: 5.8 kn Time to the mark: 40 min | No. 226002 (worked solution) |
| 3 | Course to steer: 073 °T Speed over the ground: 9.0 kn Time to the mark: 20 min | No. 226003 (worked solution) |
| 4 | Course to steer: 251 °T Speed over the ground: 10.4 kn Time to the mark: 23 min | No. 226004 (worked solution) |
| 5 | Course to steer: 074 °T Speed over the ground: 5.6 kn Time to the mark: 59 min | No. 226005 (worked solution) |
| 6 | Course to steer: 079 °T Speed over the ground: 7.2 kn Time to the mark: 34 min | No. 226006 (worked solution) |
| 7 | Course to steer: 237 °T Speed over the ground: 10.3 kn Time to the mark: 20 min | No. 226007 (worked solution) |
| 8 | Course to steer: 279 °T Speed over the ground: 8.9 kn Time to the mark: 35 min | No. 226008 (worked solution) |