Worksheet 805 · Skill 6
Course to steer
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You are at 155°T, 3.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 162°T at 0.7 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 244°T, 2.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.9 kn. The current sets 231°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 074°T, 3.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 080°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 278°T, 2.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.2 kn. The current sets 324°T at 2.1 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 321°T, 2.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 225°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 244°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 045°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
You are at 040°T, 2.0 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.2 kn. The current sets 017°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 095°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.3 kn. The current sets 250°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: 280 °T Speed over the ground: 5.7 kn Time to the mark: 45 min | No. 805001 (worked solution) |
| 2 | Course to steer: 283 °T Speed over the ground: 7.5 kn Time to the mark: 26 min | No. 805002 (worked solution) |
| 3 | Course to steer: 155 °T Speed over the ground: 8.3 kn Time to the mark: 19 min | No. 805003 (worked solution) |
| 4 | Course to steer: 182 °T Speed over the ground: 3.8 kn Time to the mark: 58 min | No. 805004 (worked solution) |
| 5 | Course to steer: 181 °T Speed over the ground: 6.9 kn Time to the mark: 43 min | No. 805005 (worked solution) |
| 6 | Course to steer: 255 °T Speed over the ground: 3.6 kn Time to the mark: 71 min | No. 805006 (worked solution) |
| 7 | Course to steer: 070 °T Speed over the ground: 6.0 kn Time to the mark: 28 min | No. 805007 (worked solution) |
| 8 | Course to steer: 009 °T Speed over the ground: 10.6 kn Time to the mark: 23 min | No. 805008 (worked solution) |