Worksheet 473 · Skill 6
Course to steer
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You are at 336°T, 2.7 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 7.1 kn. The current sets 061°T at 2.4 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 149°T, 1.5 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.4 kn. The current sets 154°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 060°T, 1.9 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 6.8 kn. The current sets 268°T at 2.4 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 292°T, 1.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 064°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 236°T, 2.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.1 kn. The current sets 183°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 334°T, 2.5 nm from Kittle water tank, bound for Green can "1". Your speed through the water is 5.8 kn. The current sets 172°T at 2.4 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 057°T, 1.0 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.7 kn. The current sets 177°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 307°T, 4.0 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.3 kn. The current sets 322°T at 2.4 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: 216 °T Speed over the ground: 5.0 kn Time to the mark: 73 min | No. 473001 (worked solution) |
| 2 | Course to steer: 074 °T Speed over the ground: 9.7 kn Time to the mark: 30 min | No. 473002 (worked solution) |
| 3 | Course to steer: 031 °T Speed over the ground: 5.8 kn Time to the mark: 30 min | No. 473003 (worked solution) |
| 4 | Course to steer: 197 °T Speed over the ground: 10.6 kn Time to the mark: 12 min | No. 473004 (worked solution) |
| 5 | Course to steer: 303 °T Speed over the ground: 8.4 kn Time to the mark: 23 min | No. 473005 (worked solution) |
| 6 | Course to steer: 296 °T Speed over the ground: 4.9 kn Time to the mark: 70 min | No. 473006 (worked solution) |
| 7 | Course to steer: 037 °T Speed over the ground: 6.1 kn Time to the mark: 36 min | No. 473007 (worked solution) |
| 8 | Course to steer: 155 °T Speed over the ground: 6.0 kn Time to the mark: 43 min | No. 473008 (worked solution) |