Worksheet 387 · Skill 6
Course to steer
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You are at 017°T, 2.5 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 9.5 kn. The current sets 107°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 040°T, 3.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.9 kn. The current sets 257°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 030°T, 3.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.5 kn. The current sets 052°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 014°T, 2.2 nm from Mill stack, bound for Red nun "2". Your speed through the water is 11.2 kn. The current sets 043°T at 2.3 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, 2.1 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 10.0 kn. The current sets 188°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 230°T, 1.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.1 kn. The current sets 073°T at 1.3 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 094°T, 3.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 7.3 kn. The current sets 123°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 061°T, 0.8 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 010°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 037 °T Speed over the ground: 10.1 kn Time to the mark: 43 min | No. 387001 (worked solution) |
| 2 | Course to steer: 132 °T Speed over the ground: 10.5 kn Time to the mark: 27 min | No. 387002 (worked solution) |
| 3 | Course to steer: 143 °T Speed over the ground: 5.7 kn Time to the mark: 54 min | No. 387003 (worked solution) |
| 4 | Course to steer: 300 °T Speed over the ground: 10.9 kn Time to the mark: 13 min | No. 387004 (worked solution) |
| 5 | Course to steer: 298 °T Speed over the ground: 9.7 kn Time to the mark: 20 min | No. 387005 (worked solution) |
| 6 | Course to steer: 232 °T Speed over the ground: 7.9 kn Time to the mark: 25 min | No. 387006 (worked solution) |
| 7 | Course to steer: 090 °T Speed over the ground: 8.9 kn Time to the mark: 18 min | No. 387007 (worked solution) |
| 8 | Course to steer: 057 °T Speed over the ground: 6.4 kn Time to the mark: 37 min | No. 387008 (worked solution) |