Worksheet 498 · Skill 6
Course to steer
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You are at 358°T, 1.1 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 122°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 220°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.4 kn. The current sets 079°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 106°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.0 kn. The current sets 294°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 295°T, 2.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 140°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
You are at 103°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.6 kn. The current sets 190°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 287°T, 3.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.9 kn. The current sets 331°T at 1.8 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 304°T, 3.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.9 kn. The current sets 152°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 356°T, 2.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.3 kn. The current sets 129°T at 1.9 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 063 °T Speed over the ground: 13.0 kn Time to the mark: 12 min | No. 498001 (worked solution) |
| 2 | Course to steer: 277 °T Speed over the ground: 3.4 kn Time to the mark: 70 min | No. 498002 (worked solution) |
| 3 | Course to steer: 258 °T Speed over the ground: 7.0 kn Time to the mark: 62 min | No. 498003 (worked solution) |
| 4 | Course to steer: 170 °T Speed over the ground: 7.1 kn Time to the mark: 24 min | No. 498004 (worked solution) |
| 5 | Course to steer: 280 °T Speed over the ground: 9.8 kn Time to the mark: 43 min | No. 498005 (worked solution) |
| 6 | Course to steer: 103 °T Speed over the ground: 4.9 kn Time to the mark: 87 min | No. 498006 (worked solution) |
| 7 | Course to steer: 171 °T Speed over the ground: 9.1 kn Time to the mark: 22 min | No. 498007 (worked solution) |
| 8 | Course to steer: 098 °T Speed over the ground: 10.0 kn Time to the mark: 26 min | No. 498008 (worked solution) |