Worksheet 577 · Skill 6
Course to steer
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You are at 342°T, 2.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 5.3 kn. The current sets 147°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 018°T, 2.6 nm from Mill stack, bound for Red nun "2". Your speed through the water is 10.7 kn. The current sets 081°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
You are at 236°T, 2.3 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 350°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 014°T, 2.7 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.3 kn. The current sets 015°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 291°T, 3.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.6 kn. The current sets 040°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 197°T, 1.2 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 158°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 060°T, 3.0 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 6.8 kn. The current sets 171°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 109°T, 1.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.0 kn. The current sets 177°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 207 °T Speed over the ground: 6.1 kn Time to the mark: 38 min | No. 577001 (worked solution) |
| 2 | Course to steer: 295 °T Speed over the ground: 9.1 kn Time to the mark: 15 min | No. 577002 (worked solution) |
| 3 | Course to steer: 321 °T Speed over the ground: 10.9 kn Time to the mark: 15 min | No. 577003 (worked solution) |
| 4 | Course to steer: 142 °T Speed over the ground: 10.7 kn Time to the mark: 30 min | No. 577004 (worked solution) |
| 5 | Course to steer: 103 °T Speed over the ground: 7.7 kn Time to the mark: 58 min | No. 577005 (worked solution) |
| 6 | Course to steer: 258 °T Speed over the ground: 9.8 kn Time to the mark: 18 min | No. 577006 (worked solution) |
| 7 | Course to steer: 270 °T Speed over the ground: 6.7 kn Time to the mark: 55 min | No. 577007 (worked solution) |
| 8 | Course to steer: 099 °T Speed over the ground: 9.4 kn Time to the mark: 20 min | No. 577008 (worked solution) |