Worksheet 153 · Skill 6
Course to steer
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You are at 011°T, 3.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 051°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 272°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 12.0 kn. The current sets 357°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 307°T, 4.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 113°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 113°T, 2.1 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.8 kn. The current sets 149°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 048°T, 1.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 164°T at 1.3 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 221°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 139°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 346°T, 1.3 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 094°T at 1.5 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 093°T, 1.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.7 kn. The current sets 087°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 146 °T Speed over the ground: 7.3 kn Time to the mark: 48 min | No. 153001 (worked solution) |
| 2 | Course to steer: 256 °T Speed over the ground: 11.9 kn Time to the mark: 18 min | No. 153002 (worked solution) |
| 3 | Course to steer: 168 °T Speed over the ground: 9.1 kn Time to the mark: 29 min | No. 153003 (worked solution) |
| 4 | Course to steer: 078 °T Speed over the ground: 12.4 kn Time to the mark: 18 min | No. 153004 (worked solution) |
| 5 | Course to steer: 046 °T Speed over the ground: 7.8 kn Time to the mark: 23 min | No. 153005 (worked solution) |
| 6 | Course to steer: 245 °T Speed over the ground: 8.7 kn Time to the mark: 17 min | No. 153006 (worked solution) |
| 7 | Course to steer: 070 °T Speed over the ground: 7.8 kn Time to the mark: 22 min | No. 153007 (worked solution) |
| 8 | Course to steer: 004 °T Speed over the ground: 11.8 kn Time to the mark: 20 min | No. 153008 (worked solution) |