Worksheet 447 · Skill 6
Course to steer
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You are at 017°T, 2.4 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 8.3 kn. The current sets 339°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 237°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.7 kn. The current sets 230°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 034°T, 2.2 nm from Mill stack, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 099°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 306°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.3 kn. The current sets 134°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 248°T, 1.6 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.9 kn. The current sets 146°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 033°T, 2.0 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.1 kn. The current sets 279°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 042°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.6 kn. The current sets 161°T at 1.4 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 013°T, 1.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 10.0 kn. The current sets 225°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: 060 °T Speed over the ground: 9.0 kn Time to the mark: 48 min | No. 447001 (worked solution) |
| 2 | Course to steer: 274 °T Speed over the ground: 12.7 kn Time to the mark: 21 min | No. 447002 (worked solution) |
| 3 | Course to steer: 301 °T Speed over the ground: 5.6 kn Time to the mark: 33 min | No. 447003 (worked solution) |
| 4 | Course to steer: 216 °T Speed over the ground: 9.8 kn Time to the mark: 24 min | No. 447004 (worked solution) |
| 5 | Course to steer: 241 °T Speed over the ground: 6.2 kn Time to the mark: 24 min | No. 447005 (worked solution) |
| 6 | Course to steer: 129 °T Speed over the ground: 4.3 kn Time to the mark: 63 min | No. 447006 (worked solution) |
| 7 | Course to steer: 259 °T Speed over the ground: 10.5 kn Time to the mark: 42 min | No. 447007 (worked solution) |
| 8 | Course to steer: 088 °T Speed over the ground: 9.4 kn Time to the mark: 23 min | No. 447008 (worked solution) |