Worksheet 647 · Skill 6
Course to steer
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You are at 085°T, 2.3 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 6.7 kn. The current sets 348°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 043°T, 2.8 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 11.8 kn. The current sets 186°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 006°T, 2.1 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 11.9 kn. The current sets 340°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 003°T, 2.9 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 5.3 kn. The current sets 078°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 016°T, 1.6 nm from Heron Point Light, bound for Red nun "2". Your speed through the water is 6.6 kn. The current sets 094°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 286°T, 3.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 214°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 064°T, 2.6 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 035°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 356°T, 1.5 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 5.8 kn. The current sets 051°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: 113 °T Speed over the ground: 6.0 kn Time to the mark: 34 min | No. 647001 (worked solution) |
| 2 | Course to steer: 118 °T Speed over the ground: 12.5 kn Time to the mark: 22 min | No. 647002 (worked solution) |
| 3 | Course to steer: 134 °T Speed over the ground: 10.6 kn Time to the mark: 30 min | No. 647003 (worked solution) |
| 4 | Course to steer: 039 °T Speed over the ground: 7.3 kn Time to the mark: 60 min | No. 647004 (worked solution) |
| 5 | Course to steer: 073 °T Speed over the ground: 8.0 kn Time to the mark: 15 min | No. 647005 (worked solution) |
| 6 | Course to steer: 139 °T Speed over the ground: 8.8 kn Time to the mark: 22 min | No. 647006 (worked solution) |
| 7 | Course to steer: 351 °T Speed over the ground: 10.8 kn Time to the mark: 15 min | No. 647007 (worked solution) |
| 8 | Course to steer: 102 °T Speed over the ground: 6.8 kn Time to the mark: 36 min | No. 647008 (worked solution) |