Worksheet 818 · Skill 6
Course to steer
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You are at 097°T, 2.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.2 kn. The current sets 062°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 042°T, 3.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.2 kn. The current sets 263°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 022°T, 2.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.0 kn. The current sets 138°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 337°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.1 kn. The current sets 143°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 115°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.4 kn. The current sets 068°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 226°T, 1.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.0 kn. The current sets 306°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 088°T, 3.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.4 kn. The current sets 341°T at 1.1 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 087°T, 2.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.0 kn. The current sets 046°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: 100 °T Speed over the ground: 8.6 kn Time to the mark: 20 min | No. 818001 (worked solution) |
| 2 | Course to steer: 135 °T Speed over the ground: 5.9 kn Time to the mark: 46 min | No. 818002 (worked solution) |
| 3 | Course to steer: 120 °T Speed over the ground: 12.2 kn Time to the mark: 27 min | No. 818003 (worked solution) |
| 4 | Course to steer: 276 °T Speed over the ground: 5.8 kn Time to the mark: 30 min | No. 818004 (worked solution) |
| 5 | Course to steer: 133 °T Speed over the ground: 9.6 kn Time to the mark: 16 min | No. 818005 (worked solution) |
| 6 | Course to steer: 221 °T Speed over the ground: 8.2 kn Time to the mark: 22 min | No. 818006 (worked solution) |
| 7 | Course to steer: 112 °T Speed over the ground: 8.7 kn Time to the mark: 15 min | No. 818007 (worked solution) |
| 8 | Course to steer: 355 °T Speed over the ground: 11.7 kn Time to the mark: 19 min | No. 818008 (worked solution) |