Worksheet 128 · Skill 6
Course to steer
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You are at 082°T, 2.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.5 kn. The current sets 120°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 032°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.9 kn. The current sets 114°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 008°T, 1.2 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 165°T at 0.5 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 124°T, 1.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.1 kn. The current sets 153°T at 0.6 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 353°T, 1.6 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 11.2 kn. The current sets 013°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 065°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.1 kn. The current sets 109°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 053°T, 2.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 308°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 351°T, 1.2 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 6.0 kn. The current sets 196°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 147 °T Speed over the ground: 9.9 kn Time to the mark: 17 min | No. 128001 (worked solution) |
| 2 | Course to steer: 150 °T Speed over the ground: 7.9 kn Time to the mark: 35 min | No. 128002 (worked solution) |
| 3 | Course to steer: 302 °T Speed over the ground: 5.6 kn Time to the mark: 61 min | No. 128003 (worked solution) |
| 4 | Course to steer: 111 °T Speed over the ground: 7.6 kn Time to the mark: 18 min | No. 128004 (worked solution) |
| 5 | Course to steer: 086 °T Speed over the ground: 11.6 kn Time to the mark: 14 min | No. 128005 (worked solution) |
| 6 | Course to steer: 147 °T Speed over the ground: 12.7 kn Time to the mark: 16 min | No. 128006 (worked solution) |
| 7 | Course to steer: 142 °T Speed over the ground: 6.0 kn Time to the mark: 37 min | No. 128007 (worked solution) |
| 8 | Course to steer: 305 °T Speed over the ground: 5.7 kn Time to the mark: 71 min | No. 128008 (worked solution) |