Worksheet 483 · Skill 6
Course to steer
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You are at 100°T, 1.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.3 kn. The current sets 051°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 035°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 344°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 306°T, 2.6 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 9.1 kn. The current sets 079°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 304°T, 1.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.8 kn. The current sets 237°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 049°T, 2.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.3 kn. The current sets 025°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 039°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.7 kn. The current sets 178°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 276°T, 1.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.3 kn. The current sets 133°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 294°T, 1.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 7.7 kn. The current sets 286°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: 359 °T Speed over the ground: 8.2 kn Time to the mark: 30 min | No. 483001 (worked solution) |
| 2 | Course to steer: 244 °T Speed over the ground: 10.5 kn Time to the mark: 38 min | No. 483002 (worked solution) |
| 3 | Course to steer: 187 °T Speed over the ground: 8.7 kn Time to the mark: 22 min | No. 483003 (worked solution) |
| 4 | Course to steer: 178 °T Speed over the ground: 12.5 kn Time to the mark: 13 min | No. 483004 (worked solution) |
| 5 | Course to steer: 130 °T Speed over the ground: 10.0 kn Time to the mark: 26 min | No. 483005 (worked solution) |
| 6 | Course to steer: 269 °T Speed over the ground: 8.7 kn Time to the mark: 32 min | No. 483006 (worked solution) |
| 7 | Course to steer: 221 °T Speed over the ground: 9.7 kn Time to the mark: 18 min | No. 483007 (worked solution) |
| 8 | Course to steer: 252 °T Speed over the ground: 9.9 kn Time to the mark: 21 min | No. 483008 (worked solution) |