Worksheet 780 · Skill 6
Course to steer
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You are at 024°T, 2.5 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 222°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 045°T, 4.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 275°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
You are at 208°T, 1.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 5.6 kn. The current sets 148°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 068°T, 3.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.5 kn. The current sets 316°T at 1.7 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 301°T, 3.3 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.5 kn. The current sets 153°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 021°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.6 kn. The current sets 153°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 021°T, 0.8 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 8.6 kn. The current sets 113°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 083°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.5 kn. The current sets 296°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: 143 °T Speed over the ground: 9.4 kn Time to the mark: 32 min | No. 780001 (worked solution) |
| 2 | Course to steer: 164 °T Speed over the ground: 8.8 kn Time to the mark: 35 min | No. 780002 (worked solution) |
| 3 | Course to steer: 255 °T Speed over the ground: 5.4 kn Time to the mark: 41 min | No. 780003 (worked solution) |
| 4 | Course to steer: 258 °T Speed over the ground: 8.5 kn Time to the mark: 45 min | No. 780004 (worked solution) |
| 5 | Course to steer: 077 °T Speed over the ground: 8.4 kn Time to the mark: 49 min | No. 780005 (worked solution) |
| 6 | Course to steer: 135 °T Speed over the ground: 13.8 kn Time to the mark: 22 min | No. 780006 (worked solution) |
| 7 | Course to steer: 047 °T Speed over the ground: 9.8 kn Time to the mark: 15 min | No. 780007 (worked solution) |
| 8 | Course to steer: 272 °T Speed over the ground: 13.8 kn Time to the mark: 25 min | No. 780008 (worked solution) |