Worksheet 681 · Skill 6
Course to steer
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You are at 059°T, 1.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 045°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 034°T, 4.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.9 kn. The current sets 139°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 339°T, 2.0 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 136°T at 0.9 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 323°T, 1.4 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 6.7 kn. The current sets 195°T at 0.6 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 077°T, 2.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.4 kn. The current sets 069°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 156°T, 1.3 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 337°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 241°T, 1.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 6.2 kn. The current sets 140°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 155°T, 2.8 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.0 kn. The current sets 159°T at 0.9 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 133 °T Speed over the ground: 10.1 kn Time to the mark: 22 min | No. 681001 (worked solution) |
| 2 | Course to steer: 172 °T Speed over the ground: 11.4 kn Time to the mark: 30 min | No. 681002 (worked solution) |
| 3 | Course to steer: 083 °T Speed over the ground: 8.6 kn Time to the mark: 22 min | No. 681003 (worked solution) |
| 4 | Course to steer: 309 °T Speed over the ground: 6.5 kn Time to the mark: 46 min | No. 681004 (worked solution) |
| 5 | Course to steer: 149 °T Speed over the ground: 8.0 kn Time to the mark: 21 min | No. 681005 (worked solution) |
| 6 | Course to steer: 274 °T Speed over the ground: 10.9 kn Time to the mark: 30 min | No. 681006 (worked solution) |
| 7 | Course to steer: 236 °T Speed over the ground: 6.2 kn Time to the mark: 24 min | No. 681007 (worked solution) |
| 8 | Course to steer: 294 °T Speed over the ground: 6.4 kn Time to the mark: 28 min | No. 681008 (worked solution) |