Worksheet 518 · Skill 6
Course to steer
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You are at 051°T, 2.4 nm from Mill stack, bound for Green can "1". Your speed through the water is 10.5 kn. The current sets 183°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 005°T, 1.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 11.7 kn. The current sets 348°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 085°T, 2.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 7.9 kn. The current sets 071°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 353°T, 2.4 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 8.1 kn. The current sets 286°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
You are at 149°T, 1.5 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 5.6 kn. The current sets 254°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 024°T, 1.6 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.8 kn. The current sets 227°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 028°T, 2.9 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 6.7 kn. The current sets 112°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 103°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 095°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 303 °T Speed over the ground: 9.7 kn Time to the mark: 25 min | No. 518001 (worked solution) |
| 2 | Course to steer: 254 °T Speed over the ground: 11.8 kn Time to the mark: 18 min | No. 518002 (worked solution) |
| 3 | Course to steer: 142 °T Speed over the ground: 8.6 kn Time to the mark: 17 min | No. 518003 (worked solution) |
| 4 | Course to steer: 205 °T Speed over the ground: 8.2 kn Time to the mark: 41 min | No. 518004 (worked solution) |
| 5 | Course to steer: 315 °T Speed over the ground: 7.2 kn Time to the mark: 40 min | No. 518005 (worked solution) |
| 6 | Course to steer: 117 °T Speed over the ground: 6.4 kn Time to the mark: 43 min | No. 518006 (worked solution) |
| 7 | Course to steer: 151 °T Speed over the ground: 8.2 kn Time to the mark: 36 min | No. 518007 (worked solution) |
| 8 | Course to steer: 044 °T Speed over the ground: 8.4 kn Time to the mark: 21 min | No. 518008 (worked solution) |