Worksheet 684 · Skill 6
Course to steer
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You are at 266°T, 2.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.8 kn. The current sets 306°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 325°T, 1.6 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.2 kn. The current sets 271°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 312°T, 2.6 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.3 kn. The current sets 279°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 223°T, 2.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.7 kn. The current sets 355°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 299°T, 2.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 235°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 170°T, 1.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.9 kn. The current sets 152°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 080°T, 3.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.0 kn. The current sets 064°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 047°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.6 kn. The current sets 227°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 197 °T Speed over the ground: 7.6 kn Time to the mark: 20 min | No. 684001 (worked solution) |
| 2 | Course to steer: 190 °T Speed over the ground: 7.3 kn Time to the mark: 25 min | No. 684002 (worked solution) |
| 3 | Course to steer: 188 °T Speed over the ground: 10.3 kn Time to the mark: 25 min | No. 684003 (worked solution) |
| 4 | Course to steer: 291 °T Speed over the ground: 7.3 kn Time to the mark: 30 min | No. 684004 (worked solution) |
| 5 | Course to steer: 157 °T Speed over the ground: 11.9 kn Time to the mark: 16 min | No. 684005 (worked solution) |
| 6 | Course to steer: 011 °T Speed over the ground: 7.3 kn Time to the mark: 44 min | No. 684006 (worked solution) |
| 7 | Course to steer: 160 °T Speed over the ground: 7.0 kn Time to the mark: 20 min | No. 684007 (worked solution) |
| 8 | Course to steer: 131 °T Speed over the ground: 9.6 kn Time to the mark: 25 min | No. 684008 (worked solution) |