Worksheet 519 · Skill 6
Course to steer
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You are at 087°T, 3.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 140°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 300°T, 4.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 214°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 321°T, 2.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 283°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 Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.6 kn. The current sets 259°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 036°T, 4.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.9 kn. The current sets 067°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 051°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.4 kn. The current sets 127°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 007°T, 2.1 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.7 kn. The current sets 015°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 263°T, 1.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.8 kn. The current sets 284°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 103 °T Speed over the ground: 8.2 kn Time to the mark: 16 min | No. 519001 (worked solution) |
| 2 | Course to steer: 171 °T Speed over the ground: 12.8 kn Time to the mark: 21 min | No. 519002 (worked solution) |
| 3 | Course to steer: 188 °T Speed over the ground: 8.9 kn Time to the mark: 37 min | No. 519003 (worked solution) |
| 4 | Course to steer: 051 °T Speed over the ground: 4.3 kn Time to the mark: 39 min | No. 519004 (worked solution) |
| 5 | Course to steer: 157 °T Speed over the ground: 8.2 kn Time to the mark: 37 min | No. 519005 (worked solution) |
| 6 | Course to steer: 010 °T Speed over the ground: 10.7 kn Time to the mark: 17 min | No. 519006 (worked solution) |
| 7 | Course to steer: 087 °T Speed over the ground: 10.5 kn Time to the mark: 20 min | No. 519007 (worked solution) |
| 8 | Course to steer: 194 °T Speed over the ground: 7.0 kn Time to the mark: 22 min | No. 519008 (worked solution) |