Worksheet 449 · Skill 6
Course to steer
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You are at 067°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 10.6 kn. The current sets 154°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 145°T, 2.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 10.5 kn. The current sets 227°T at 1.9 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 080°T, 2.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.2 kn. The current sets 070°T at 2.1 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 293°T, 2.1 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.8 kn. The current sets 317°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 055°T, 3.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.4 kn. The current sets 010°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 154°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 11.5 kn. The current sets 219°T at 0.7 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 275°T, 1.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.7 kn. The current sets 239°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 348°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.9 kn. The current sets 273°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: 278 °T Speed over the ground: 10.2 kn Time to the mark: 28 min | No. 449001 (worked solution) |
| 2 | Course to steer: 269 °T Speed over the ground: 12.0 kn Time to the mark: 22 min | No. 449002 (worked solution) |
| 3 | Course to steer: 156 °T Speed over the ground: 11.5 kn Time to the mark: 15 min | No. 449003 (worked solution) |
| 4 | Course to steer: 191 °T Speed over the ground: 6.3 kn Time to the mark: 33 min | No. 449004 (worked solution) |
| 5 | Course to steer: 344 °T Speed over the ground: 7.1 kn Time to the mark: 17 min | No. 449005 (worked solution) |
| 6 | Course to steer: 285 °T Speed over the ground: 11.8 kn Time to the mark: 28 min | No. 449006 (worked solution) |
| 7 | Course to steer: 272 °T Speed over the ground: 12.0 kn Time to the mark: 19 min | No. 449007 (worked solution) |
| 8 | Course to steer: 204 °T Speed over the ground: 9.5 kn Time to the mark: 32 min | No. 449008 (worked solution) |