Worksheet 25 · Skill 6
Course to steer
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You are at 011°T, 3.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.1 kn. The current sets 023°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 207°T, 2.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 177°T at 1.3 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 301°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 11.5 kn. The current sets 125°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 134°T, 1.3 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 5.5 kn. The current sets 311°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 038°T, 3.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.6 kn. The current sets 314°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 071°T, 3.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.5 kn. The current sets 230°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 135°T, 2.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 7.0 kn. The current sets 231°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 335°T, 2.5 nm from Mill stack, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 099°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: 132 °T Speed over the ground: 10.8 kn Time to the mark: 34 min | No. 25001 (worked solution) |
| 2 | Course to steer: 261 °T Speed over the ground: 12.2 kn Time to the mark: 10 min | No. 25002 (worked solution) |
| 3 | Course to steer: 264 °T Speed over the ground: 9.7 kn Time to the mark: 28 min | No. 25003 (worked solution) |
| 4 | Course to steer: 030 °T Speed over the ground: 6.0 kn Time to the mark: 49 min | No. 25004 (worked solution) |
| 5 | Course to steer: 153 °T Speed over the ground: 7.9 kn Time to the mark: 37 min | No. 25005 (worked solution) |
| 6 | Course to steer: 115 °T Speed over the ground: 9.8 kn Time to the mark: 17 min | No. 25006 (worked solution) |
| 7 | Course to steer: 271 °T Speed over the ground: 8.4 kn Time to the mark: 35 min | No. 25007 (worked solution) |
| 8 | Course to steer: 011 °T Speed over the ground: 8.7 kn Time to the mark: 18 min | No. 25008 (worked solution) |