Worksheet 665 · Skill 6
Course to steer
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You are at 151°T, 1.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.3 kn. The current sets 018°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 099°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.3 kn. The current sets 062°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 297°T, 3.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.2 kn. The current sets 128°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 347°T, 0.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 352°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 247°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.9 kn. The current sets 114°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 007°T, 3.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.8 kn. The current sets 090°T at 0.7 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 018°T, 2.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.0 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 082°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.3 kn. The current sets 124°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 122 °T Speed over the ground: 8.1 kn Time to the mark: 23 min | No. 665001 (worked solution) |
| 2 | Course to steer: 140 °T Speed over the ground: 10.9 kn Time to the mark: 15 min | No. 665002 (worked solution) |
| 3 | Course to steer: 164 °T Speed over the ground: 11.1 kn Time to the mark: 17 min | No. 665003 (worked solution) |
| 4 | Course to steer: 255 °T Speed over the ground: 5.5 kn Time to the mark: 36 min | No. 665004 (worked solution) |
| 5 | Course to steer: 278 °T Speed over the ground: 9.5 kn Time to the mark: 21 min | No. 665005 (worked solution) |
| 6 | Course to steer: 132 °T Speed over the ground: 7.3 kn Time to the mark: 54 min | No. 665006 (worked solution) |
| 7 | Course to steer: 153 °T Speed over the ground: 6.2 kn Time to the mark: 49 min | No. 665007 (worked solution) |
| 8 | Course to steer: 345 °T Speed over the ground: 5.8 kn Time to the mark: 36 min | No. 665008 (worked solution) |