Worksheet 669 · Skill 6
Course to steer
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You are at 014°T, 1.7 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 11.9 kn. The current sets 148°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 296°T, 4.0 nm from Tern Island tower, bound for Red nun "2". Your speed through the water is 11.2 kn. The current sets 104°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 227°T, 2.4 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 9.3 kn. The current sets 015°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 338°T, 2.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.9 kn. The current sets 116°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 318°T, 1.6 nm from Kittle water tank, bound for Red nun "2". Your speed through the water is 11.7 kn. The current sets 078°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 168°T, 0.9 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 10.5 kn. The current sets 158°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 159°T, 1.2 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 8.6 kn. The current sets 303°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 005°T, 1.6 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 8.0 kn. The current sets 302°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 062 °T Speed over the ground: 12.1 kn Time to the mark: 17 min | No. 669001 (worked solution) |
| 2 | Course to steer: 180 °T Speed over the ground: 11.7 kn Time to the mark: 22 min | No. 669002 (worked solution) |
| 3 | Course to steer: 289 °T Speed over the ground: 9.5 kn Time to the mark: 22 min | No. 669003 (worked solution) |
| 4 | Course to steer: 198 °T Speed over the ground: 7.0 kn Time to the mark: 32 min | No. 669004 (worked solution) |
| 5 | Course to steer: 285 °T Speed over the ground: 10.0 kn Time to the mark: 33 min | No. 669005 (worked solution) |
| 6 | Course to steer: 083 °T Speed over the ground: 10.7 kn Time to the mark: 31 min | No. 669006 (worked solution) |
| 7 | Course to steer: 246 °T Speed over the ground: 10.1 kn Time to the mark: 13 min | No. 669007 (worked solution) |
| 8 | Course to steer: 250 °T Speed over the ground: 9.2 kn Time to the mark: 24 min | No. 669008 (worked solution) |