Worksheet 815 · Skill 6
Course to steer
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You are at 329°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 6.9 kn. The current sets 273°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 108°T, 1.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 058°T at 0.5 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 343°T, 1.3 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.8 kn. The current sets 171°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 096°T, 1.9 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 028°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 203°T, 2.4 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.7 kn. The current sets 330°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 280°T, 0.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 7.1 kn. The current sets 178°T at 1.2 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 176°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 277°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 059°T, 2.4 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 8.7 kn. The current sets 027°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 246 °T Speed over the ground: 7.7 kn Time to the mark: 39 min | No. 815001 (worked solution) |
| 2 | Course to steer: 111 °T Speed over the ground: 6.7 kn Time to the mark: 28 min | No. 815002 (worked solution) |
| 3 | Course to steer: 052 °T Speed over the ground: 5.2 kn Time to the mark: 51 min | No. 815003 (worked solution) |
| 4 | Course to steer: 008 °T Speed over the ground: 6.6 kn Time to the mark: 20 min | No. 815004 (worked solution) |
| 5 | Course to steer: 063 °T Speed over the ground: 11.7 kn Time to the mark: 31 min | No. 815005 (worked solution) |
| 6 | Course to steer: 271 °T Speed over the ground: 7.1 kn Time to the mark: 39 min | No. 815006 (worked solution) |
| 7 | Course to steer: 252 °T Speed over the ground: 7.3 kn Time to the mark: 26 min | No. 815007 (worked solution) |
| 8 | Course to steer: 048 °T Speed over the ground: 10.4 kn Time to the mark: 13 min | No. 815008 (worked solution) |