Worksheet 406 · Skill 6
Course to steer
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You are at 041°T, 3.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.2 kn. The current sets 046°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 031°T, 2.3 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.9 kn. The current sets 192°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 219°T, 2.5 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.2 kn. The current sets 045°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 022°T, 2.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.8 kn. The current sets 319°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 048°T, 3.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.0 kn. The current sets 042°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 270°T, 1.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.9 kn. The current sets 265°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 033°T, 2.8 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.6 kn. The current sets 198°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 271°T, 2.4 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 159°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 160 °T Speed over the ground: 10.7 kn Time to the mark: 25 min | No. 406001 (worked solution) |
| 2 | Course to steer: 060 °T Speed over the ground: 8.8 kn Time to the mark: 18 min | No. 406002 (worked solution) |
| 3 | Course to steer: 277 °T Speed over the ground: 7.1 kn Time to the mark: 34 min | No. 406003 (worked solution) |
| 4 | Course to steer: 107 °T Speed over the ground: 8.1 kn Time to the mark: 24 min | No. 406004 (worked solution) |
| 5 | Course to steer: 171 °T Speed over the ground: 5.8 kn Time to the mark: 42 min | No. 406005 (worked solution) |
| 6 | Course to steer: 205 °T Speed over the ground: 6.5 kn Time to the mark: 34 min | No. 406006 (worked solution) |
| 7 | Course to steer: 259 °T Speed over the ground: 11.8 kn Time to the mark: 34 min | No. 406007 (worked solution) |
| 8 | Course to steer: 263 °T Speed over the ground: 11.1 kn Time to the mark: 17 min | No. 406008 (worked solution) |