Worksheet 881 · Skill 6
Course to steer
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You are at 058°T, 1.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 10.7 kn. The current sets 146°T at 0.9 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 049°T, 3.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.7 kn. The current sets 350°T at 0.9 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 237°T, 1.0 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.7 kn. The current sets 247°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 014°T, 2.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.7 kn. The current sets 059°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 032°T, 1.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.0 kn. The current sets 347°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 293°T, 4.3 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 123°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 014°T, 1.6 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 173°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 308°T, 1.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.6 kn. The current sets 105°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 011 °T Speed over the ground: 10.1 kn Time to the mark: 18 min | No. 881001 (worked solution) |
| 2 | Course to steer: 137 °T Speed over the ground: 9.0 kn Time to the mark: 27 min | No. 881002 (worked solution) |
| 3 | Course to steer: 272 °T Speed over the ground: 6.4 kn Time to the mark: 43 min | No. 881003 (worked solution) |
| 4 | Course to steer: 149 °T Speed over the ground: 7.7 kn Time to the mark: 41 min | No. 881004 (worked solution) |
| 5 | Course to steer: 044 °T Speed over the ground: 6.3 kn Time to the mark: 27 min | No. 881005 (worked solution) |
| 6 | Course to steer: 152 °T Speed over the ground: 7.8 kn Time to the mark: 31 min | No. 881006 (worked solution) |
| 7 | Course to steer: 112 °T Speed over the ground: 7.3 kn Time to the mark: 40 min | No. 881007 (worked solution) |
| 8 | Course to steer: 196 °T Speed over the ground: 5.6 kn Time to the mark: 28 min | No. 881008 (worked solution) |