Worksheet 270 · Skill 6
Course to steer
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You are at 011°T, 2.0 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 301°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 143°T, 1.7 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.8 kn. The current sets 040°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 271°T, 3.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.6 kn. The current sets 268°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
You are at 106°T, 2.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 8.3 kn. The current sets 138°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 059°T, 3.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.2 kn. The current sets 153°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 200°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.0 kn. The current sets 084°T at 2.2 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 033°T, 2.6 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 199°T at 2.2 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 308°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.9 kn. The current sets 117°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 094 °T Speed over the ground: 5.1 kn Time to the mark: 24 min | No. 270001 (worked solution) |
| 2 | Course to steer: 279 °T Speed over the ground: 5.6 kn Time to the mark: 65 min | No. 270002 (worked solution) |
| 3 | Course to steer: 170 °T Speed over the ground: 6.5 kn Time to the mark: 29 min | No. 270003 (worked solution) |
| 4 | Course to steer: 282 °T Speed over the ground: 7.3 kn Time to the mark: 60 min | No. 270004 (worked solution) |
| 5 | Course to steer: 272 °T Speed over the ground: 9.5 kn Time to the mark: 41 min | No. 270005 (worked solution) |
| 6 | Course to steer: 280 °T Speed over the ground: 7.9 kn Time to the mark: 37 min | No. 270006 (worked solution) |
| 7 | Course to steer: 056 °T Speed over the ground: 4.6 kn Time to the mark: 31 min | No. 270007 (worked solution) |
| 8 | Course to steer: 208 °T Speed over the ground: 8.0 kn Time to the mark: 37 min | No. 270008 (worked solution) |