Worksheet 454 · Skill 6
Course to steer
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You are at 334°T, 1.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 116°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 011°T, 1.7 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 6.0 kn. The current sets 218°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 067°T, 3.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.3 kn. The current sets 011°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 307°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.7 kn. The current sets 351°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 309°T, 3.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 320°T at 2.0 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 012°T, 1.1 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.4 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
You are at 320°T, 2.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.6 kn. The current sets 046°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 019°T, 1.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.6 kn. The current sets 016°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 229 °T Speed over the ground: 6.7 kn Time to the mark: 40 min | No. 454001 (worked solution) |
| 2 | Course to steer: 282 °T Speed over the ground: 6.3 kn Time to the mark: 68 min | No. 454002 (worked solution) |
| 3 | Course to steer: 168 °T Speed over the ground: 5.3 kn Time to the mark: 34 min | No. 454003 (worked solution) |
| 4 | Course to steer: 104 °T Speed over the ground: 11.0 kn Time to the mark: 33 min | No. 454004 (worked solution) |
| 5 | Course to steer: 161 °T Speed over the ground: 6.7 kn Time to the mark: 33 min | No. 454005 (worked solution) |
| 6 | Course to steer: 079 °T Speed over the ground: 6.5 kn Time to the mark: 36 min | No. 454006 (worked solution) |
| 7 | Course to steer: 208 °T Speed over the ground: 7.3 kn Time to the mark: 45 min | No. 454007 (worked solution) |
| 8 | Course to steer: 108 °T Speed over the ground: 6.8 kn Time to the mark: 31 min | No. 454008 (worked solution) |