Worksheet 218 · Skill 6
Course to steer
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You are at 019°T, 3.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 049°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 038°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.1 kn. The current sets 154°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
You are at 003°T, 1.1 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 6.7 kn. The current sets 073°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 268°T, 3.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.3 kn. The current sets 077°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 030°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.3 kn. The current sets 005°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 064°T, 1.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.6 kn. The current sets 062°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 106°T, 1.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.9 kn. The current sets 196°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 114°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 12.0 kn. The current sets 317°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 158 °T Speed over the ground: 6.8 kn Time to the mark: 51 min | No. 218001 (worked solution) |
| 2 | Course to steer: 265 °T Speed over the ground: 7.6 kn Time to the mark: 58 min | No. 218002 (worked solution) |
| 3 | Course to steer: 275 °T Speed over the ground: 5.3 kn Time to the mark: 78 min | No. 218003 (worked solution) |
| 4 | Course to steer: 195 °T Speed over the ground: 4.7 kn Time to the mark: 30 min | No. 218004 (worked solution) |
| 5 | Course to steer: 155 °T Speed over the ground: 4.4 kn Time to the mark: 61 min | No. 218005 (worked solution) |
| 6 | Course to steer: 125 °T Speed over the ground: 10.1 kn Time to the mark: 23 min | No. 218006 (worked solution) |
| 7 | Course to steer: 116 °T Speed over the ground: 6.2 kn Time to the mark: 27 min | No. 218007 (worked solution) |
| 8 | Course to steer: 264 °T Speed over the ground: 13.4 kn Time to the mark: 32 min | No. 218008 (worked solution) |