Worksheet 525 · Skill 6
Course to steer
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You are at 306°T, 3.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.3 kn. The current sets 190°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 065°T, 2.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 340°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, 2.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 189°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 018°T, 1.7 nm from Mill stack, bound for Green can "1". Your speed through the water is 7.9 kn. The current sets 223°T at 0.6 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 213°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.4 kn. The current sets 353°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 218°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.5 kn. The current sets 016°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 182°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.3 kn. The current sets 313°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 047°T, 1.5 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 8.7 kn. The current sets 094°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 160 °T Speed over the ground: 7.0 kn Time to the mark: 29 min | No. 525001 (worked solution) |
| 2 | Course to steer: 255 °T Speed over the ground: 10.0 kn Time to the mark: 37 min | No. 525002 (worked solution) |
| 3 | Course to steer: 167 °T Speed over the ground: 8.1 kn Time to the mark: 17 min | No. 525003 (worked solution) |
| 4 | Course to steer: 307 °T Speed over the ground: 8.0 kn Time to the mark: 21 min | No. 525004 (worked solution) |
| 5 | Course to steer: 293 °T Speed over the ground: 9.9 kn Time to the mark: 21 min | No. 525005 (worked solution) |
| 6 | Course to steer: 236 °T Speed over the ground: 6.9 kn Time to the mark: 21 min | No. 525006 (worked solution) |
| 7 | Course to steer: 249 °T Speed over the ground: 11.1 kn Time to the mark: 16 min | No. 525007 (worked solution) |
| 8 | Course to steer: 291 °T Speed over the ground: 7.1 kn Time to the mark: 56 min | No. 525008 (worked solution) |