Worksheet 189 · Skill 6
Course to steer
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You are at 017°T, 2.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 111°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 036°T, 2.4 nm from Mill stack, bound for Green can "1". Your speed through the water is 8.3 kn. The current sets 151°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 026°T, 2.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 276°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 067°T, 3.0 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.1 kn. The current sets 123°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 134°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.8 kn. The current sets 155°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 150°T, 1.8 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.7 kn. The current sets 198°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 016°T, 2.3 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.1 kn. The current sets 315°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 225°T, 1.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.1 kn. The current sets 018°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: 153 °T Speed over the ground: 9.7 kn Time to the mark: 34 min | No. 189001 (worked solution) |
| 2 | Course to steer: 300 °T Speed over the ground: 6.5 kn Time to the mark: 31 min | No. 189002 (worked solution) |
| 3 | Course to steer: 139 °T Speed over the ground: 7.7 kn Time to the mark: 41 min | No. 189003 (worked solution) |
| 4 | Course to steer: 344 °T Speed over the ground: 7.6 kn Time to the mark: 21 min | No. 189004 (worked solution) |
| 5 | Course to steer: 277 °T Speed over the ground: 9.3 kn Time to the mark: 40 min | No. 189005 (worked solution) |
| 6 | Course to steer: 082 °T Speed over the ground: 7.0 kn Time to the mark: 24 min | No. 189006 (worked solution) |
| 7 | Course to steer: 090 °T Speed over the ground: 7.7 kn Time to the mark: 25 min | No. 189007 (worked solution) |
| 8 | Course to steer: 223 °T Speed over the ground: 4.2 kn Time to the mark: 29 min | No. 189008 (worked solution) |