Worksheet 372 · Skill 6
Course to steer
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You are at 298°T, 4.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.1 kn. The current sets 106°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 036°T, 4.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 140°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 347°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.6 kn. The current sets 306°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 241°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.3 kn. The current sets 101°T at 0.5 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 026°T, 2.0 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 9.6 kn. The current sets 170°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
You are at 249°T, 2.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 340°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 266°T, 1.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.9 kn. The current sets 110°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 305°T, 1.7 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 7.0 kn. The current sets 352°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 159 °T Speed over the ground: 8.0 kn Time to the mark: 30 min | No. 372001 (worked solution) |
| 2 | Course to steer: 161 °T Speed over the ground: 9.6 kn Time to the mark: 31 min | No. 372002 (worked solution) |
| 3 | Course to steer: 182 °T Speed over the ground: 7.6 kn Time to the mark: 33 min | No. 372003 (worked solution) |
| 4 | Course to steer: 222 °T Speed over the ground: 6.1 kn Time to the mark: 24 min | No. 372004 (worked solution) |
| 5 | Course to steer: 290 °T Speed over the ground: 8.8 kn Time to the mark: 49 min | No. 372005 (worked solution) |
| 6 | Course to steer: 198 °T Speed over the ground: 5.7 kn Time to the mark: 29 min | No. 372006 (worked solution) |
| 7 | Course to steer: 027 °T Speed over the ground: 6.5 kn Time to the mark: 51 min | No. 372007 (worked solution) |
| 8 | Course to steer: 271 °T Speed over the ground: 7.5 kn Time to the mark: 45 min | No. 372008 (worked solution) |