Worksheet 687 · Skill 6
Course to steer
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You are at 070°T, 2.7 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.8 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 077°T, 3.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.7 kn. The current sets 058°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 340°T, 2.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.4 kn. The current sets 025°T at 2.3 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 358°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.3 kn. The current sets 112°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, 1.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.0 kn. The current sets 134°T at 2.3 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 104°T, 1.9 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 189°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 270°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 10.1 kn. The current sets 037°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 339°T, 1.8 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.6 kn. The current sets 261°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 283 °T Speed over the ground: 7.0 kn Time to the mark: 51 min | No. 687001 (worked solution) |
| 2 | Course to steer: 122 °T Speed over the ground: 9.5 kn Time to the mark: 19 min | No. 687002 (worked solution) |
| 3 | Course to steer: 124 °T Speed over the ground: 6.5 kn Time to the mark: 47 min | No. 687003 (worked solution) |
| 4 | Course to steer: 034 °T Speed over the ground: 5.6 kn Time to the mark: 35 min | No. 687004 (worked solution) |
| 5 | Course to steer: 082 °T Speed over the ground: 7.6 kn Time to the mark: 28 min | No. 687005 (worked solution) |
| 6 | Course to steer: 250 °T Speed over the ground: 8.3 kn Time to the mark: 38 min | No. 687006 (worked solution) |
| 7 | Course to steer: 258 °T Speed over the ground: 9.4 kn Time to the mark: 26 min | No. 687007 (worked solution) |
| 8 | Course to steer: 027 °T Speed over the ground: 7.5 kn Time to the mark: 24 min | No. 687008 (worked solution) |