Worksheet 561 · Skill 6
Course to steer
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You are at 215°T, 2.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.4 kn. The current sets 108°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 299°T, 3.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.8 kn. The current sets 284°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 316°T, 3.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.2 kn. The current sets 122°T at 1.1 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 177°T, 1.0 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 234°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 144°T, 1.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.8 kn. The current sets 200°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 013°T, 2.5 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 9.3 kn. The current sets 167°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 337°T, 2.6 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 053°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 035°T, 3.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 307°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: 314 °T Speed over the ground: 8.8 kn Time to the mark: 24 min | No. 561001 (worked solution) |
| 2 | Course to steer: 175 °T Speed over the ground: 8.5 kn Time to the mark: 29 min | No. 561002 (worked solution) |
| 3 | Course to steer: 095 °T Speed over the ground: 7.2 kn Time to the mark: 52 min | No. 561003 (worked solution) |
| 4 | Course to steer: 325 °T Speed over the ground: 5.6 kn Time to the mark: 43 min | No. 561004 (worked solution) |
| 5 | Course to steer: 285 °T Speed over the ground: 11.9 kn Time to the mark: 28 min | No. 561005 (worked solution) |
| 6 | Course to steer: 040 °T Speed over the ground: 8.6 kn Time to the mark: 51 min | No. 561006 (worked solution) |
| 7 | Course to steer: 200 °T Speed over the ground: 6.4 kn Time to the mark: 38 min | No. 561007 (worked solution) |
| 8 | Course to steer: 132 °T Speed over the ground: 3.1 kn Time to the mark: 96 min | No. 561008 (worked solution) |