Worksheet 388 · Skill 6
Course to steer
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You are at 310°T, 3.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 12.0 kn. The current sets 095°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 273°T, 2.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.2 kn. The current sets 255°T at 1.0 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 027°T, 1.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.5 kn. The current sets 251°T at 0.5 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 054°T, 3.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 031°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 079°T, 2.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.8 kn. The current sets 144°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 022°T, 3.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.2 kn. The current sets 007°T at 1.6 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 242°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.3 kn. The current sets 297°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 174°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 043°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 172 °T Speed over the ground: 12.4 kn Time to the mark: 19 min | No. 388001 (worked solution) |
| 2 | Course to steer: 180 °T Speed over the ground: 8.5 kn Time to the mark: 19 min | No. 388002 (worked solution) |
| 3 | Course to steer: 112 °T Speed over the ground: 6.1 kn Time to the mark: 51 min | No. 388003 (worked solution) |
| 4 | Course to steer: 146 °T Speed over the ground: 8.5 kn Time to the mark: 26 min | No. 388004 (worked solution) |
| 5 | Course to steer: 349 °T Speed over the ground: 9.9 kn Time to the mark: 20 min | No. 388005 (worked solution) |
| 6 | Course to steer: 139 °T Speed over the ground: 8.2 kn Time to the mark: 42 min | No. 388006 (worked solution) |
| 7 | Course to steer: 197 °T Speed over the ground: 9.2 kn Time to the mark: 14 min | No. 388007 (worked solution) |
| 8 | Course to steer: 263 °T Speed over the ground: 7.5 kn Time to the mark: 44 min | No. 388008 (worked solution) |