Worksheet 445 · Skill 6
Course to steer
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You are at 290°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.6 kn. The current sets 102°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 303°T, 4.1 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 7.6 kn. The current sets 274°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
You are at 312°T, 3.3 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.8 kn. The current sets 353°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
You are at 304°T, 2.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.6 kn. The current sets 243°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 024°T, 2.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 7.9 kn. The current sets 219°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
You are at 297°T, 2.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.2 kn. The current sets 311°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 125°T, 1.6 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.8 kn. The current sets 344°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 151°T, 2.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.4 kn. The current sets 081°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 201 °T Speed over the ground: 8.5 kn Time to the mark: 29 min | No. 445001 (worked solution) |
| 2 | Course to steer: 139 °T Speed over the ground: 6.2 kn Time to the mark: 41 min | No. 445002 (worked solution) |
| 3 | Course to steer: 188 °T Speed over the ground: 9.5 kn Time to the mark: 34 min | No. 445003 (worked solution) |
| 4 | Course to steer: 195 °T Speed over the ground: 7.2 kn Time to the mark: 40 min | No. 445004 (worked solution) |
| 5 | Course to steer: 069 °T Speed over the ground: 5.9 kn Time to the mark: 27 min | No. 445005 (worked solution) |
| 6 | Course to steer: 189 °T Speed over the ground: 8.7 kn Time to the mark: 31 min | No. 445006 (worked solution) |
| 7 | Course to steer: 271 °T Speed over the ground: 11.3 kn Time to the mark: 33 min | No. 445007 (worked solution) |
| 8 | Course to steer: 035 °T Speed over the ground: 5.8 kn Time to the mark: 47 min | No. 445008 (worked solution) |