Worksheet 303 · Skill 6
Course to steer
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You are at 295°T, 4.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 305°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 195°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 187°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 093°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.6 kn. The current sets 077°T at 1.4 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 302°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 014°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 249°T, 2.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 202°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 031°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.8 kn. The current sets 343°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 289°T, 3.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 208°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 269°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.7 kn. The current sets 114°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 173 °T Speed over the ground: 9.8 kn Time to the mark: 30 min | No. 303001 (worked solution) |
| 2 | Course to steer: 319 °T Speed over the ground: 8.3 kn Time to the mark: 28 min | No. 303002 (worked solution) |
| 3 | Course to steer: 005 °T Speed over the ground: 12.1 kn Time to the mark: 20 min | No. 303003 (worked solution) |
| 4 | Course to steer: 242 °T Speed over the ground: 4.4 kn Time to the mark: 60 min | No. 303004 (worked solution) |
| 5 | Course to steer: 299 °T Speed over the ground: 8.1 kn Time to the mark: 21 min | No. 303005 (worked solution) |
| 6 | Course to steer: 248 °T Speed over the ground: 9.8 kn Time to the mark: 40 min | No. 303006 (worked solution) |
| 7 | Course to steer: 158 °T Speed over the ground: 9.4 kn Time to the mark: 24 min | No. 303007 (worked solution) |
| 8 | Course to steer: 275 °T Speed over the ground: 4.8 kn Time to the mark: 36 min | No. 303008 (worked solution) |