Worksheet 185 · Skill 6
Course to steer
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You are at 343°T, 0.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.4 kn. The current sets 292°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 295°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 245°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 133°T, 1.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 351°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 023°T, 1.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.7 kn. The current sets 257°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 280°T, 2.6 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.0 kn. The current sets 226°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 270°T, 3.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 258°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 286°T, 3.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.4 kn. The current sets 346°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 007°T, 1.0 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 11.5 kn. The current sets 348°T at 2.1 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 252 °T Speed over the ground: 12.3 kn Time to the mark: 22 min | No. 185001 (worked solution) |
| 2 | Course to steer: 193 °T Speed over the ground: 9.8 kn Time to the mark: 27 min | No. 185002 (worked solution) |
| 3 | Course to steer: 257 °T Speed over the ground: 9.5 kn Time to the mark: 39 min | No. 185003 (worked solution) |
| 4 | Course to steer: 120 °T Speed over the ground: 9.4 kn Time to the mark: 30 min | No. 185004 (worked solution) |
| 5 | Course to steer: 148 °T Speed over the ground: 11.5 kn Time to the mark: 12 min | No. 185005 (worked solution) |
| 6 | Course to steer: 187 °T Speed over the ground: 11.7 kn Time to the mark: 16 min | No. 185006 (worked solution) |
| 7 | Course to steer: 185 °T Speed over the ground: 8.9 kn Time to the mark: 27 min | No. 185007 (worked solution) |
| 8 | Course to steer: 278 °T Speed over the ground: 12.4 kn Time to the mark: 32 min | No. 185008 (worked solution) |