Worksheet 246 · Skill 6
Course to steer
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You are at 074°T, 2.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 340°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 125°T, 1.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.8 kn. The current sets 338°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 034°T, 1.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.1 kn. The current sets 331°T at 0.9 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 080°T, 2.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 10.2 kn. The current sets 227°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 081°T, 3.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 242°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 034°T, 3.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.8 kn. The current sets 182°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 263°T, 1.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.5 kn. The current sets 158°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 325°T, 1.6 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 080°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 255 °T Speed over the ground: 12.2 kn Time to the mark: 35 min | No. 246001 (worked solution) |
| 2 | Course to steer: 102 °T Speed over the ground: 6.9 kn Time to the mark: 40 min | No. 246002 (worked solution) |
| 3 | Course to steer: 100 °T Speed over the ground: 6.6 kn Time to the mark: 27 min | No. 246003 (worked solution) |
| 4 | Course to steer: 133 °T Speed over the ground: 10.2 kn Time to the mark: 15 min | No. 246004 (worked solution) |
| 5 | Course to steer: 132 °T Speed over the ground: 5.3 kn Time to the mark: 24 min | No. 246005 (worked solution) |
| 6 | Course to steer: 160 °T Speed over the ground: 12.9 kn Time to the mark: 25 min | No. 246006 (worked solution) |
| 7 | Course to steer: 228 °T Speed over the ground: 6.2 kn Time to the mark: 34 min | No. 246007 (worked solution) |
| 8 | Course to steer: 278 °T Speed over the ground: 4.4 kn Time to the mark: 76 min | No. 246008 (worked solution) |