Worksheet 27 · Skill 6
Course to steer
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You are at 204°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.2 kn. The current sets 335°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 012°T, 1.4 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.7 kn. The current sets 136°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 021°T, 1.8 nm from Mill stack, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 185°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 297°T, 2.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 103°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 227°T, 2.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 181°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 062°T, 3.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.9 kn. The current sets 066°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 043°T, 3.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.4 kn. The current sets 263°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 064°T, 2.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 164°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: 270 °T Speed over the ground: 11.8 kn Time to the mark: 25 min | No. 27001 (worked solution) |
| 2 | Course to steer: 103 °T Speed over the ground: 11.7 kn Time to the mark: 29 min | No. 27002 (worked solution) |
| 3 | Course to steer: 339 °T Speed over the ground: 3.1 kn Time to the mark: 54 min | No. 27003 (worked solution) |
| 4 | Course to steer: 202 °T Speed over the ground: 9.0 kn Time to the mark: 24 min | No. 27004 (worked solution) |
| 5 | Course to steer: 301 °T Speed over the ground: 5.9 kn Time to the mark: 37 min | No. 27005 (worked solution) |
| 6 | Course to steer: 161 °T Speed over the ground: 6.9 kn Time to the mark: 28 min | No. 27006 (worked solution) |
| 7 | Course to steer: 159 °T Speed over the ground: 7.2 kn Time to the mark: 40 min | No. 27007 (worked solution) |
| 8 | Course to steer: 278 °T Speed over the ground: 5.1 kn Time to the mark: 85 min | No. 27008 (worked solution) |