Worksheet 306 · Skill 6
Course to steer
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You are at 047°T, 2.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 12.0 kn. The current sets 225°T at 2.0 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 345°T, 2.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.2 kn. The current sets 179°T at 1.1 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 124°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.4 kn. The current sets 183°T at 2.0 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 085°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.2 kn. The current sets 042°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
You are at 080°T, 2.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.1 kn. The current sets 037°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 040°T, 1.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.9 kn. The current sets 323°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 017°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.3 kn. The current sets 161°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 057°T, 1.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 290°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 138 °T Speed over the ground: 12.3 kn Time to the mark: 20 min | No. 306001 (worked solution) |
| 2 | Course to steer: 215 °T Speed over the ground: 12.1 kn Time to the mark: 29 min | No. 306002 (worked solution) |
| 3 | Course to steer: 268 °T Speed over the ground: 5.9 kn Time to the mark: 46 min | No. 306003 (worked solution) |
| 4 | Course to steer: 150 °T Speed over the ground: 9.7 kn Time to the mark: 18 min | No. 306004 (worked solution) |
| 5 | Course to steer: 122 °T Speed over the ground: 6.4 kn Time to the mark: 29 min | No. 306005 (worked solution) |
| 6 | Course to steer: 130 °T Speed over the ground: 4.4 kn Time to the mark: 57 min | No. 306006 (worked solution) |
| 7 | Course to steer: 266 °T Speed over the ground: 6.1 kn Time to the mark: 67 min | No. 306007 (worked solution) |
| 8 | Course to steer: 135 °T Speed over the ground: 8.1 kn Time to the mark: 28 min | No. 306008 (worked solution) |