Worksheet 237 · Skill 6
Course to steer
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You are at 349°T, 1.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.3 kn. The current sets 263°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 005°T, 2.7 nm from Mill stack, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 027°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 283°T, 3.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 243°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 338°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.2 kn. The current sets 195°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 153°T, 2.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.6 kn. The current sets 018°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 219°T, 0.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.4 kn. The current sets 298°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 134°T, 0.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.5 kn. The current sets 048°T at 2.4 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 322°T, 3.2 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 8.8 kn. The current sets 068°T at 1.5 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 209 °T Speed over the ground: 8.9 kn Time to the mark: 39 min | No. 237001 (worked solution) |
| 2 | Course to steer: 269 °T Speed over the ground: 5.2 kn Time to the mark: 24 min | No. 237002 (worked solution) |
| 3 | Course to steer: 160 °T Speed over the ground: 7.4 kn Time to the mark: 28 min | No. 237003 (worked solution) |
| 4 | Course to steer: 271 °T Speed over the ground: 11.8 kn Time to the mark: 15 min | No. 237004 (worked solution) |
| 5 | Course to steer: 258 °T Speed over the ground: 5.2 kn Time to the mark: 48 min | No. 237005 (worked solution) |
| 6 | Course to steer: 264 °T Speed over the ground: 12.5 kn Time to the mark: 23 min | No. 237006 (worked solution) |
| 7 | Course to steer: 011 °T Speed over the ground: 8.5 kn Time to the mark: 33 min | No. 237007 (worked solution) |
| 8 | Course to steer: 265 °T Speed over the ground: 7.4 kn Time to the mark: 39 min | No. 237008 (worked solution) |