Worksheet 610 · Skill 6
Course to steer
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You are at 329°T, 1.5 nm from Heron Point Light, bound for Green can "1". Your speed through the water is 6.5 kn. The current sets 251°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 024°T, 2.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.0 kn. The current sets 165°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 297°T, 2.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.6 kn. The current sets 083°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 041°T, 2.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 5.8 kn. The current sets 180°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 019°T, 3.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.8 kn. The current sets 226°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 053°T, 4.0 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 5.7 kn. The current sets 283°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
You are at 010°T, 2.5 nm from Mill stack, bound for Green can "1". Your speed through the water is 11.9 kn. The current sets 067°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 012°T, 2.1 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 6.8 kn. The current sets 322°T at 0.6 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 083 °T Speed over the ground: 4.7 kn Time to the mark: 33 min | No. 610001 (worked solution) |
| 2 | Course to steer: 069 °T Speed over the ground: 5.0 kn Time to the mark: 32 min | No. 610002 (worked solution) |
| 3 | Course to steer: 209 °T Speed over the ground: 7.6 kn Time to the mark: 35 min | No. 610003 (worked solution) |
| 4 | Course to steer: 149 °T Speed over the ground: 6.6 kn Time to the mark: 40 min | No. 610004 (worked solution) |
| 5 | Course to steer: 115 °T Speed over the ground: 6.4 kn Time to the mark: 56 min | No. 610005 (worked solution) |
| 6 | Course to steer: 148 °T Speed over the ground: 4.6 kn Time to the mark: 52 min | No. 610006 (worked solution) |
| 7 | Course to steer: 281 °T Speed over the ground: 10.6 kn Time to the mark: 13 min | No. 610007 (worked solution) |
| 8 | Course to steer: 105 °T Speed over the ground: 6.3 kn Time to the mark: 35 min | No. 610008 (worked solution) |