Worksheet 1 · Skill 6
Course to steer
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You are at 058°T, 1.9 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 313°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 290°T, 3.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 114°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 047°T, 1.5 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.5 kn. The current sets 093°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 354°T, 2.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.3 kn. The current sets 281°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 093°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.2 kn. The current sets 344°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 037°T, 2.8 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.3 kn. The current sets 016°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 290°T, 1.8 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 106°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 202°T, 1.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.6 kn. The current sets 357°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: 243 °T Speed over the ground: 6.1 kn Time to the mark: 64 min | No. 1001 (worked solution) |
| 2 | Course to steer: 191 °T Speed over the ground: 9.8 kn Time to the mark: 27 min | No. 1002 (worked solution) |
| 3 | Course to steer: 048 °T Speed over the ground: 10.8 kn Time to the mark: 18 min | No. 1003 (worked solution) |
| 4 | Course to steer: 193 °T Speed over the ground: 6.7 kn Time to the mark: 49 min | No. 1004 (worked solution) |
| 5 | Course to steer: 066 °T Speed over the ground: 6.4 kn Time to the mark: 25 min | No. 1005 (worked solution) |
| 6 | Course to steer: 160 °T Speed over the ground: 4.0 kn Time to the mark: 67 min | No. 1006 (worked solution) |
| 7 | Course to steer: 221 °T Speed over the ground: 4.6 kn Time to the mark: 45 min | No. 1007 (worked solution) |
| 8 | Course to steer: 281 °T Speed over the ground: 9.9 kn Time to the mark: 27 min | No. 1008 (worked solution) |