Worksheet 548 · Skill 6
Course to steer
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You are at 066°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 338°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 295°T, 4.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 123°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
You are at 018°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.4 kn. The current sets 179°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 047°T, 1.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.8 kn. The current sets 035°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 015°T, 1.7 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 054°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 080°T, 3.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.0 kn. The current sets 106°T at 1.8 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 089°T, 1.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.7 kn. The current sets 251°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 269°T, 3.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 023°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: 238 °T Speed over the ground: 5.7 kn Time to the mark: 67 min | No. 548001 (worked solution) |
| 2 | Course to steer: 176 °T Speed over the ground: 13.2 kn Time to the mark: 20 min | No. 548002 (worked solution) |
| 3 | Course to steer: 267 °T Speed over the ground: 10.5 kn Time to the mark: 23 min | No. 548003 (worked solution) |
| 4 | Course to steer: 117 °T Speed over the ground: 12.4 kn Time to the mark: 24 min | No. 548004 (worked solution) |
| 5 | Course to steer: 282 °T Speed over the ground: 8.5 kn Time to the mark: 41 min | No. 548005 (worked solution) |
| 6 | Course to steer: 160 °T Speed over the ground: 10.2 kn Time to the mark: 13 min | No. 548006 (worked solution) |
| 7 | Course to steer: 111 °T Speed over the ground: 8.7 kn Time to the mark: 22 min | No. 548007 (worked solution) |
| 8 | Course to steer: 189 °T Speed over the ground: 3.8 kn Time to the mark: 48 min | No. 548008 (worked solution) |