Worksheet 9 · Skill 6
Course to steer
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You are at 323°T, 1.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.6 kn. The current sets 024°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 065°T, 1.1 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 138°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 079°T, 1.2 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 5.1 kn. The current sets 285°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 256°T, 3.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.9 kn. The current sets 312°T at 0.7 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 010°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 153°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 064°T, 3.2 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.0 kn. The current sets 076°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 041°T, 3.3 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 7.9 kn. The current sets 002°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 005°T, 1.9 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.7 kn. The current sets 278°T at 2.1 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 263 °T Speed over the ground: 9.2 kn Time to the mark: 18 min | No. 9001 (worked solution) |
| 2 | Course to steer: 283 °T Speed over the ground: 8.3 kn Time to the mark: 33 min | No. 9002 (worked solution) |
| 3 | Course to steer: 062 °T Speed over the ground: 3.7 kn Time to the mark: 35 min | No. 9003 (worked solution) |
| 4 | Course to steer: 184 °T Speed over the ground: 8.5 kn Time to the mark: 16 min | No. 9004 (worked solution) |
| 5 | Course to steer: 260 °T Speed over the ground: 8.7 kn Time to the mark: 43 min | No. 9005 (worked solution) |
| 6 | Course to steer: 177 °T Speed over the ground: 8.8 kn Time to the mark: 24 min | No. 9006 (worked solution) |
| 7 | Course to steer: 166 °T Speed over the ground: 6.1 kn Time to the mark: 47 min | No. 9007 (worked solution) |
| 8 | Course to steer: 251 °T Speed over the ground: 13.6 kn Time to the mark: 17 min | No. 9008 (worked solution) |