Worksheet 558 · Skill 6
Course to steer
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You are at 084°T, 1.2 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 341°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 149°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 12.0 kn. The current sets 308°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 272°T, 1.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 353°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 231°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.5 kn. The current sets 342°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 005°T, 1.8 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.4 kn. The current sets 113°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
You are at 214°T, 2.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.3 kn. The current sets 174°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 277°T, 1.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 195°T at 2.3 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 081°T, 1.3 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 106°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: 038 °T Speed over the ground: 8.6 kn Time to the mark: 16 min | No. 558001 (worked solution) |
| 2 | Course to steer: 020 °T Speed over the ground: 12.3 kn Time to the mark: 25 min | No. 558002 (worked solution) |
| 3 | Course to steer: 247 °T Speed over the ground: 6.2 kn Time to the mark: 33 min | No. 558003 (worked solution) |
| 4 | Course to steer: 219 °T Speed over the ground: 8.8 kn Time to the mark: 16 min | No. 558004 (worked solution) |
| 5 | Course to steer: 256 °T Speed over the ground: 10.1 kn Time to the mark: 31 min | No. 558005 (worked solution) |
| 6 | Course to steer: 267 °T Speed over the ground: 5.4 kn Time to the mark: 23 min | No. 558006 (worked solution) |
| 7 | Course to steer: 216 °T Speed over the ground: 7.8 kn Time to the mark: 29 min | No. 558007 (worked solution) |
| 8 | Course to steer: 021 °T Speed over the ground: 7.1 kn Time to the mark: 31 min | No. 558008 (worked solution) |