Worksheet 56 · Skill 6
Course to steer
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You are at 145°T, 2.5 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.0 kn. The current sets 225°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 303°T, 4.3 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 10.6 kn. The current sets 024°T at 1.1 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 218°T, 2.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.3 kn. The current sets 085°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 153°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.7 kn. The current sets 131°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 179°T, 1.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.5 kn. The current sets 318°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 293°T, 3.5 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 213°T at 1.1 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 044°T, 1.1 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 034°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 029°T, 1.8 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.6 kn. The current sets 344°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 271 °T Speed over the ground: 9.1 kn Time to the mark: 29 min | No. 56001 (worked solution) |
| 2 | Course to steer: 159 °T Speed over the ground: 9.9 kn Time to the mark: 27 min | No. 56002 (worked solution) |
| 3 | Course to steer: 317 °T Speed over the ground: 6.0 kn Time to the mark: 34 min | No. 56003 (worked solution) |
| 4 | Course to steer: 273 °T Speed over the ground: 7.2 kn Time to the mark: 41 min | No. 56004 (worked solution) |
| 5 | Course to steer: 034 °T Speed over the ground: 8.0 kn Time to the mark: 40 min | No. 56005 (worked solution) |
| 6 | Course to steer: 142 °T Speed over the ground: 5.5 kn Time to the mark: 37 min | No. 56006 (worked solution) |
| 7 | Course to steer: 145 °T Speed over the ground: 8.7 kn Time to the mark: 28 min | No. 56007 (worked solution) |
| 8 | Course to steer: 251 °T Speed over the ground: 11.7 kn Time to the mark: 23 min | No. 56008 (worked solution) |