Worksheet 664 · Skill 6
Course to steer
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You are at 179°T, 1.4 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.4 kn. The current sets 270°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
You are at 190°T, 2.2 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.2 kn. The current sets 221°T at 1.4 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 007°T, 3.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 204°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 041°T, 2.0 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.0 kn. The current sets 176°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 079°T, 1.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.4 kn. The current sets 290°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 323°T, 2.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.7 kn. The current sets 087°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 301°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 129°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 263°T, 2.7 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 8.3 kn. The current sets 169°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: 309 °T Speed over the ground: 13.1 kn Time to the mark: 19 min | No. 664001 (worked solution) |
| 2 | Course to steer: 258 °T Speed over the ground: 12.4 kn Time to the mark: 16 min | No. 664002 (worked solution) |
| 3 | Course to steer: 116 °T Speed over the ground: 11.8 kn Time to the mark: 32 min | No. 664003 (worked solution) |
| 4 | Course to steer: 049 °T Speed over the ground: 8.1 kn Time to the mark: 21 min | No. 664004 (worked solution) |
| 5 | Course to steer: 076 °T Speed over the ground: 6.0 kn Time to the mark: 24 min | No. 664005 (worked solution) |
| 6 | Course to steer: 210 °T Speed over the ground: 8.2 kn Time to the mark: 40 min | No. 664006 (worked solution) |
| 7 | Course to steer: 207 °T Speed over the ground: 9.5 kn Time to the mark: 29 min | No. 664007 (worked solution) |
| 8 | Course to steer: 035 °T Speed over the ground: 6.9 kn Time to the mark: 56 min | No. 664008 (worked solution) |