Worksheet 310 · Skill 6
Course to steer
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You are at 058°T, 1.3 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 078°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 286°T, 3.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.8 kn. The current sets 304°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 347°T, 1.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 194°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 109°T, 2.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.3 kn. The current sets 217°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 273°T, 1.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.7 kn. The current sets 149°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 036°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 012°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 017°T, 3.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 170°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 027°T, 4.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.2 kn. The current sets 053°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 046 °T Speed over the ground: 10.9 kn Time to the mark: 19 min | No. 310001 (worked solution) |
| 2 | Course to steer: 176 °T Speed over the ground: 7.3 kn Time to the mark: 34 min | No. 310002 (worked solution) |
| 3 | Course to steer: 216 °T Speed over the ground: 10.3 kn Time to the mark: 29 min | No. 310003 (worked solution) |
| 4 | Course to steer: 008 °T Speed over the ground: 8.9 kn Time to the mark: 30 min | No. 310004 (worked solution) |
| 5 | Course to steer: 037 °T Speed over the ground: 9.2 kn Time to the mark: 35 min | No. 310005 (worked solution) |
| 6 | Course to steer: 123 °T Speed over the ground: 7.6 kn Time to the mark: 40 min | No. 310006 (worked solution) |
| 7 | Course to steer: 123 °T Speed over the ground: 7.4 kn Time to the mark: 49 min | No. 310007 (worked solution) |
| 8 | Course to steer: 162 °T Speed over the ground: 6.9 kn Time to the mark: 48 min | No. 310008 (worked solution) |