Worksheet 479 · Skill 6
Course to steer
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You are at 053°T, 3.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.3 kn. The current sets 234°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 274°T, 2.6 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 279°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 339°T, 2.3 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.5 kn. The current sets 018°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 296°T, 3.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.5 kn. The current sets 311°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 107°T, 1.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 024°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
You are at 239°T, 2.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.6 kn. The current sets 235°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
You are at 251°T, 3.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.8 kn. The current sets 143°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 306°T, 2.8 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.8 kn. The current sets 155°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 263 °T Speed over the ground: 11.7 kn Time to the mark: 33 min | No. 479001 (worked solution) |
| 2 | Course to steer: 172 °T Speed over the ground: 8.2 kn Time to the mark: 20 min | No. 479002 (worked solution) |
| 3 | Course to steer: 202 °T Speed over the ground: 3.1 kn Time to the mark: 99 min | No. 479003 (worked solution) |
| 4 | Course to steer: 177 °T Speed over the ground: 10.2 kn Time to the mark: 27 min | No. 479004 (worked solution) |
| 5 | Course to steer: 121 °T Speed over the ground: 7.1 kn Time to the mark: 22 min | No. 479005 (worked solution) |
| 6 | Course to steer: 287 °T Speed over the ground: 10.6 kn Time to the mark: 19 min | No. 479006 (worked solution) |
| 7 | Course to steer: 206 °T Speed over the ground: 11.5 kn Time to the mark: 12 min | No. 479007 (worked solution) |
| 8 | Course to steer: 177 °T Speed over the ground: 8.2 kn Time to the mark: 24 min | No. 479008 (worked solution) |