Worksheet 541 · Skill 6
Course to steer
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You are at 291°T, 3.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.8 kn. The current sets 112°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 007°T, 1.7 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 083°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 047°T, 3.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 173°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
You are at 242°T, 1.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 173°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 017°T, 2.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 060°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 034°T, 1.6 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 11.4 kn. The current sets 113°T at 1.6 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 097°T, 2.2 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 8.2 kn. The current sets 127°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 035°T, 3.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.4 kn. The current sets 023°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 165 °T Speed over the ground: 7.8 kn Time to the mark: 23 min | No. 541001 (worked solution) |
| 2 | Course to steer: 145 °T Speed over the ground: 12.5 kn Time to the mark: 24 min | No. 541002 (worked solution) |
| 3 | Course to steer: 285 °T Speed over the ground: 5.0 kn Time to the mark: 71 min | No. 541003 (worked solution) |
| 4 | Course to steer: 285 °T Speed over the ground: 8.8 kn Time to the mark: 26 min | No. 541004 (worked solution) |
| 5 | Course to steer: 133 °T Speed over the ground: 6.1 kn Time to the mark: 55 min | No. 541005 (worked solution) |
| 6 | Course to steer: 087 °T Speed over the ground: 12.9 kn Time to the mark: 14 min | No. 541006 (worked solution) |
| 7 | Course to steer: 044 °T Speed over the ground: 8.3 kn Time to the mark: 17 min | No. 541007 (worked solution) |
| 8 | Course to steer: 150 °T Speed over the ground: 4.6 kn Time to the mark: 64 min | No. 541008 (worked solution) |