Worksheet 465 · Skill 6
Course to steer
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You are at 026°T, 2.5 nm from Mill stack, bound for Red nun "2". Your speed through the water is 5.4 kn. The current sets 190°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 047°T, 2.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 12.0 kn. The current sets 180°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 039°T, 2.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 278°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 253°T, 2.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 106°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 000°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.1 kn. The current sets 310°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 145°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.2 kn. The current sets 157°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 284°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 251°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 348°T, 1.6 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.3 kn. The current sets 280°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: 312 °T Speed over the ground: 4.9 kn Time to the mark: 33 min | No. 465001 (worked solution) |
| 2 | Course to steer: 048 °T Speed over the ground: 10.5 kn Time to the mark: 12 min | No. 465002 (worked solution) |
| 3 | Course to steer: 247 °T Speed over the ground: 13.5 kn Time to the mark: 31 min | No. 465003 (worked solution) |
| 4 | Course to steer: 212 °T Speed over the ground: 7.2 kn Time to the mark: 20 min | No. 465004 (worked solution) |
| 5 | Course to steer: 261 °T Speed over the ground: 9.8 kn Time to the mark: 22 min | No. 465005 (worked solution) |
| 6 | Course to steer: 302 °T Speed over the ground: 9.5 kn Time to the mark: 30 min | No. 465006 (worked solution) |
| 7 | Course to steer: 153 °T Speed over the ground: 8.0 kn Time to the mark: 17 min | No. 465007 (worked solution) |
| 8 | Course to steer: 081 °T Speed over the ground: 5.0 kn Time to the mark: 51 min | No. 465008 (worked solution) |