Worksheet 563 · Skill 6
Course to steer
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You are at 070°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.2 kn. The current sets 065°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 021°T, 3.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 10.9 kn. The current sets 128°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 011°T, 2.2 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.8 kn. The current sets 338°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 156°T, 1.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.6 kn. The current sets 010°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 056°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "1". Your speed through the water is 8.6 kn. The current sets 225°T at 2.2 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 040°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.4 kn. The current sets 004°T at 0.5 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 287°T, 3.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.2 kn. The current sets 301°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 223°T, 1.7 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 11.8 kn. The current sets 153°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 010 °T Speed over the ground: 12.0 kn Time to the mark: 17 min | No. 563001 (worked solution) |
| 2 | Course to steer: 160 °T Speed over the ground: 12.3 kn Time to the mark: 29 min | No. 563002 (worked solution) |
| 3 | Course to steer: 065 °T Speed over the ground: 8.3 kn Time to the mark: 17 min | No. 563003 (worked solution) |
| 4 | Course to steer: 097 °T Speed over the ground: 7.7 kn Time to the mark: 29 min | No. 563004 (worked solution) |
| 5 | Course to steer: 265 °T Speed over the ground: 10.4 kn Time to the mark: 40 min | No. 563005 (worked solution) |
| 6 | Course to steer: 251 °T Speed over the ground: 6.2 kn Time to the mark: 62 min | No. 563006 (worked solution) |
| 7 | Course to steer: 177 °T Speed over the ground: 7.7 kn Time to the mark: 26 min | No. 563007 (worked solution) |
| 8 | Course to steer: 244 °T Speed over the ground: 11.9 kn Time to the mark: 11 min | No. 563008 (worked solution) |