Worksheet 522 · Skill 6
Course to steer
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You are at 303°T, 1.8 nm from Tern Island tower, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 150°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 022°T, 2.6 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 11.9 kn. The current sets 224°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 251°T, 3.4 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.0 kn. The current sets 308°T at 0.7 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 028°T, 1.3 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 9.0 kn. The current sets 345°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 049°T, 4.2 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 12.0 kn. The current sets 143°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 001°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 247°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 033°T, 1.0 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 5.6 kn. The current sets 046°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 290°T, 1.4 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 11.1 kn. The current sets 166°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 070 °T Speed over the ground: 7.7 kn Time to the mark: 43 min | No. 522001 (worked solution) |
| 2 | Course to steer: 074 °T Speed over the ground: 10.2 kn Time to the mark: 16 min | No. 522002 (worked solution) |
| 3 | Course to steer: 188 °T Speed over the ground: 10.7 kn Time to the mark: 11 min | No. 522003 (worked solution) |
| 4 | Course to steer: 277 °T Speed over the ground: 9.7 kn Time to the mark: 44 min | No. 522004 (worked solution) |
| 5 | Course to steer: 169 °T Speed over the ground: 13.9 kn Time to the mark: 19 min | No. 522005 (worked solution) |
| 6 | Course to steer: 211 °T Speed over the ground: 12.7 kn Time to the mark: 30 min | No. 522006 (worked solution) |
| 7 | Course to steer: 113 °T Speed over the ground: 6.0 kn Time to the mark: 52 min | No. 522007 (worked solution) |
| 8 | Course to steer: 035 °T Speed over the ground: 9.7 kn Time to the mark: 30 min | No. 522008 (worked solution) |