Worksheet 258 · Skill 6
Course to steer
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You are at 071°T, 2.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.8 kn. The current sets 273°T at 2.4 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 348°T, 1.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 035°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 338°T, 2.0 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 107°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 301°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.8 kn. The current sets 285°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 251°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.9 kn. The current sets 348°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 064°T, 3.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 060°T at 0.9 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 041°T, 2.5 nm from Mill stack, bound for Red nun "2". Your speed through the water is 10.9 kn. The current sets 089°T at 2.4 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 326°T, 2.0 nm from Mill stack, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 130°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 108 °T Speed over the ground: 9.5 kn Time to the mark: 22 min | No. 258001 (worked solution) |
| 2 | Course to steer: 249 °T Speed over the ground: 5.0 kn Time to the mark: 56 min | No. 258002 (worked solution) |
| 3 | Course to steer: 006 °T Speed over the ground: 8.3 kn Time to the mark: 21 min | No. 258003 (worked solution) |
| 4 | Course to steer: 168 °T Speed over the ground: 7.6 kn Time to the mark: 23 min | No. 258004 (worked solution) |
| 5 | Course to steer: 267 °T Speed over the ground: 7.3 kn Time to the mark: 27 min | No. 258005 (worked solution) |
| 6 | Course to steer: 132 °T Speed over the ground: 8.4 kn Time to the mark: 23 min | No. 258006 (worked solution) |
| 7 | Course to steer: 296 °T Speed over the ground: 8.8 kn Time to the mark: 23 min | No. 258007 (worked solution) |
| 8 | Course to steer: 344 °T Speed over the ground: 5.7 kn Time to the mark: 22 min | No. 258008 (worked solution) |