Worksheet 247 · Skill 6
Course to steer
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You are at 292°T, 2.4 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.1 kn. The current sets 026°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 048°T, 3.0 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.0 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 043°T, 2.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.9 kn. The current sets 101°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 010°T, 3.4 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.0 kn. The current sets 224°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 011°T, 1.9 nm from Mill stack, bound for Red nun "2". Your speed through the water is 7.1 kn. The current sets 059°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 023°T, 3.4 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 8.0 kn. The current sets 267°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 109°T, 2.1 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.8 kn. The current sets 153°T at 1.7 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 260°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 10.6 kn. The current sets 247°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: 176 °T Speed over the ground: 6.5 kn Time to the mark: 24 min | No. 247001 (worked solution) |
| 2 | Course to steer: 246 °T Speed over the ground: 6.5 kn Time to the mark: 68 min | No. 247002 (worked solution) |
| 3 | Course to steer: 151 °T Speed over the ground: 10.6 kn Time to the mark: 24 min | No. 247003 (worked solution) |
| 4 | Course to steer: 120 °T Speed over the ground: 4.9 kn Time to the mark: 74 min | No. 247004 (worked solution) |
| 5 | Course to steer: 314 °T Speed over the ground: 7.0 kn Time to the mark: 21 min | No. 247005 (worked solution) |
| 6 | Course to steer: 142 °T Speed over the ground: 7.1 kn Time to the mark: 48 min | No. 247006 (worked solution) |
| 7 | Course to steer: 359 °T Speed over the ground: 10.3 kn Time to the mark: 26 min | No. 247007 (worked solution) |
| 8 | Course to steer: 201 °T Speed over the ground: 12.4 kn Time to the mark: 15 min | No. 247008 (worked solution) |