Worksheet 40 · Skill 6
Course to steer
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You are at 027°T, 2.3 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 091°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 264°T, 3.0 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.8 kn. The current sets 086°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 030°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.5 kn. The current sets 106°T at 2.0 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 007°T, 1.7 nm from Mill stack, bound for Green can "3". Your speed through the water is 7.8 kn. The current sets 333°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 032°T, 3.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.0 kn. The current sets 201°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 065°T, 3.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.8 kn. The current sets 234°T at 1.9 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 269°T, 0.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.3 kn. The current sets 052°T at 1.2 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 046°T, 2.0 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.1 kn. The current sets 214°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: 142 °T Speed over the ground: 13.0 kn Time to the mark: 22 min | No. 40001 (worked solution) |
| 2 | Course to steer: 200 °T Speed over the ground: 7.4 kn Time to the mark: 23 min | No. 40002 (worked solution) |
| 3 | Course to steer: 168 °T Speed over the ground: 10.6 kn Time to the mark: 30 min | No. 40003 (worked solution) |
| 4 | Course to steer: 001 °T Speed over the ground: 8.7 kn Time to the mark: 20 min | No. 40004 (worked solution) |
| 5 | Course to steer: 128 °T Speed over the ground: 10.5 kn Time to the mark: 29 min | No. 40005 (worked solution) |
| 6 | Course to steer: 120 °T Speed over the ground: 11.2 kn Time to the mark: 17 min | No. 40006 (worked solution) |
| 7 | Course to steer: 266 °T Speed over the ground: 9.3 kn Time to the mark: 25 min | No. 40007 (worked solution) |
| 8 | Course to steer: 046 °T Speed over the ground: 2.9 kn Time to the mark: 56 min | No. 40008 (worked solution) |