Worksheet 481 · Skill 6
Course to steer
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You are at 220°T, 1.9 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 084°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 125°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.5 kn. The current sets 075°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 289°T, 2.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.6 kn. The current sets 325°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 068°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.4 kn. The current sets 062°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 315°T, 3.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 278°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
You are at 035°T, 3.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 306°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 098°T, 2.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.7 kn. The current sets 267°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 077°T, 2.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.7 kn. The current sets 283°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 243 °T Speed over the ground: 5.4 kn Time to the mark: 32 min | No. 481001 (worked solution) |
| 2 | Course to steer: 269 °T Speed over the ground: 7.9 kn Time to the mark: 51 min | No. 481002 (worked solution) |
| 3 | Course to steer: 160 °T Speed over the ground: 5.2 kn Time to the mark: 29 min | No. 481003 (worked solution) |
| 4 | Course to steer: 272 °T Speed over the ground: 7.3 kn Time to the mark: 36 min | No. 481004 (worked solution) |
| 5 | Course to steer: 174 °T Speed over the ground: 7.0 kn Time to the mark: 41 min | No. 481005 (worked solution) |
| 6 | Course to steer: 242 °T Speed over the ground: 9.2 kn Time to the mark: 46 min | No. 481006 (worked solution) |
| 7 | Course to steer: 359 °T Speed over the ground: 9.7 kn Time to the mark: 26 min | No. 481007 (worked solution) |
| 8 | Course to steer: 140 °T Speed over the ground: 9.2 kn Time to the mark: 19 min | No. 481008 (worked solution) |