Worksheet 477 · Skill 6
Course to steer
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You are at 081°T, 2.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.3 kn. The current sets 012°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 127°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.4 kn. The current sets 137°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 175°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.6 kn. The current sets 265°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 024°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.4 kn. The current sets 170°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 338°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.2 kn. The current sets 237°T at 1.2 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 344°T, 1.0 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 002°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 261°T, 3.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.4 kn. The current sets 062°T at 1.2 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 029°T, 2.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 237°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 162 °T Speed over the ground: 3.4 kn Time to the mark: 43 min | No. 477001 (worked solution) |
| 2 | Course to steer: 000 °T Speed over the ground: 7.8 kn Time to the mark: 37 min | No. 477002 (worked solution) |
| 3 | Course to steer: 313 °T Speed over the ground: 12.3 kn Time to the mark: 21 min | No. 477003 (worked solution) |
| 4 | Course to steer: 282 °T Speed over the ground: 9.7 kn Time to the mark: 24 min | No. 477004 (worked solution) |
| 5 | Course to steer: 089 °T Speed over the ground: 8.2 kn Time to the mark: 34 min | No. 477005 (worked solution) |
| 6 | Course to steer: 256 °T Speed over the ground: 5.7 kn Time to the mark: 34 min | No. 477006 (worked solution) |
| 7 | Course to steer: 179 °T Speed over the ground: 6.9 kn Time to the mark: 17 min | No. 477007 (worked solution) |
| 8 | Course to steer: 129 °T Speed over the ground: 4.8 kn Time to the mark: 58 min | No. 477008 (worked solution) |