Worksheet 685 · Skill 6
Course to steer
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You are at 018°T, 3.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 074°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 066°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.2 kn. The current sets 061°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 306°T, 3.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 087°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 270°T, 3.3 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.6 kn. The current sets 070°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 075°T, 2.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.5 kn. The current sets 322°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 308°T, 1.8 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 7.8 kn. The current sets 215°T at 2.2 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 014°T, 2.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.9 kn. The current sets 147°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 335°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 326°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 141 °T Speed over the ground: 10.0 kn Time to the mark: 36 min | No. 685001 (worked solution) |
| 2 | Course to steer: 272 °T Speed over the ground: 7.5 kn Time to the mark: 37 min | No. 685002 (worked solution) |
| 3 | Course to steer: 177 °T Speed over the ground: 6.3 kn Time to the mark: 40 min | No. 685003 (worked solution) |
| 4 | Course to steer: 138 °T Speed over the ground: 10.9 kn Time to the mark: 12 min | No. 685004 (worked solution) |
| 5 | Course to steer: 150 °T Speed over the ground: 3.1 kn Time to the mark: 56 min | No. 685005 (worked solution) |
| 6 | Course to steer: 299 °T Speed over the ground: 8.3 kn Time to the mark: 40 min | No. 685006 (worked solution) |
| 7 | Course to steer: 119 °T Speed over the ground: 7.2 kn Time to the mark: 50 min | No. 685007 (worked solution) |
| 8 | Course to steer: 264 °T Speed over the ground: 7.8 kn Time to the mark: 23 min | No. 685008 (worked solution) |