Worksheet 193 · Skill 6
Course to steer
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You are at 257°T, 1.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.3 kn. The current sets 146°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
You are at 335°T, 1.9 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 5.5 kn. The current sets 017°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 026°T, 1.7 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 5.1 kn. The current sets 228°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 151°T, 0.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 213°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 092°T, 3.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.8 kn. The current sets 199°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 056°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 12.0 kn. The current sets 100°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 247°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.8 kn. The current sets 268°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 082°T, 1.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.9 kn. The current sets 156°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 219 °T Speed over the ground: 7.5 kn Time to the mark: 26 min | No. 193001 (worked solution) |
| 2 | Course to steer: 114 °T Speed over the ground: 5.5 kn Time to the mark: 28 min | No. 193002 (worked solution) |
| 3 | Course to steer: 259 °T Speed over the ground: 6.7 kn Time to the mark: 58 min | No. 193003 (worked solution) |
| 4 | Course to steer: 090 °T Speed over the ground: 7.4 kn Time to the mark: 32 min | No. 193004 (worked solution) |
| 5 | Course to steer: 087 °T Speed over the ground: 10.1 kn Time to the mark: 12 min | No. 193005 (worked solution) |
| 6 | Course to steer: 015 °T Speed over the ground: 12.1 kn Time to the mark: 16 min | No. 193006 (worked solution) |
| 7 | Course to steer: 195 °T Speed over the ground: 7.4 kn Time to the mark: 18 min | No. 193007 (worked solution) |
| 8 | Course to steer: 054 °T Speed over the ground: 6.8 kn Time to the mark: 23 min | No. 193008 (worked solution) |