Worksheet 249 · Skill 6
Course to steer
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You are at 152°T, 1.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 12.0 kn. The current sets 009°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 054°T, 2.9 nm from Westfield church spire, bound for Green can "1". Your speed through the water is 6.9 kn. The current sets 308°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 071°T, 2.7 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 180°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 260°T, 0.8 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 9.0 kn. The current sets 308°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 017°T, 1.7 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 9.3 kn. The current sets 017°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 028°T, 2.4 nm from Mill stack, bound for Green can "1". Your speed through the water is 11.3 kn. The current sets 158°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 326°T, 1.5 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 5.2 kn. The current sets 138°T at 0.5 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 018°T, 1.5 nm from Kittle water tank, bound for Green can "3". Your speed through the water is 5.7 kn. The current sets 328°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: 082 °T Speed over the ground: 12.4 kn Time to the mark: 23 min | No. 249001 (worked solution) |
| 2 | Course to steer: 151 °T Speed over the ground: 5.0 kn Time to the mark: 47 min | No. 249002 (worked solution) |
| 3 | Course to steer: 109 °T Speed over the ground: 8.8 kn Time to the mark: 23 min | No. 249003 (worked solution) |
| 4 | Course to steer: 044 °T Speed over the ground: 8.9 kn Time to the mark: 33 min | No. 249004 (worked solution) |
| 5 | Course to steer: 107 °T Speed over the ground: 9.5 kn Time to the mark: 22 min | No. 249005 (worked solution) |
| 6 | Course to steer: 295 °T Speed over the ground: 10.1 kn Time to the mark: 18 min | No. 249006 (worked solution) |
| 7 | Course to steer: 258 °T Speed over the ground: 5.0 kn Time to the mark: 50 min | No. 249007 (worked solution) |
| 8 | Course to steer: 289 °T Speed over the ground: 6.5 kn Time to the mark: 54 min | No. 249008 (worked solution) |