Worksheet 890 · Skill 6
Course to steer
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You are at 285°T, 3.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 001°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 249°T, 2.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 353°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 037°T, 2.1 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 220°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 329°T, 1.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 279°T at 0.6 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 215°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.3 kn. The current sets 259°T at 0.8 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 101°T, 2.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 009°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 159°T, 3.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 065°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 015°T, 2.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.4 kn. The current sets 255°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: 103 °T Speed over the ground: 6.9 kn Time to the mark: 61 min | No. 890001 (worked solution) |
| 2 | Course to steer: 263 °T Speed over the ground: 11.5 kn Time to the mark: 16 min | No. 890002 (worked solution) |
| 3 | Course to steer: 254 °T Speed over the ground: 10.2 kn Time to the mark: 41 min | No. 890003 (worked solution) |
| 4 | Course to steer: 188 °T Speed over the ground: 7.6 kn Time to the mark: 26 min | No. 890004 (worked solution) |
| 5 | Course to steer: 315 °T Speed over the ground: 11.8 kn Time to the mark: 17 min | No. 890005 (worked solution) |
| 6 | Course to steer: 110 °T Speed over the ground: 7.5 kn Time to the mark: 27 min | No. 890006 (worked solution) |
| 7 | Course to steer: 286 °T Speed over the ground: 4.6 kn Time to the mark: 40 min | No. 890007 (worked solution) |
| 8 | Course to steer: 144 °T Speed over the ground: 9.2 kn Time to the mark: 37 min | No. 890008 (worked solution) |